Which of the following would not contribute to the surface area available for water absorption from
the soil by a plant root system?
•A. fungi associated with the roots
© B. mycorrhizae
O C. endodermi
O D. root hairs
Answers
Endodermis would not contribute to the surface area available for water absorption from the soil by a plant root system. The correct answer is option (C)
The endodermis is a specialized layer of cells in the root that controls the movement of water and minerals into the vascular tissue of the plant. While the endodermis plays a crucial role in regulating the flow of substances within the root, it does not contribute to the surface area available for water absorption from the soil by a plant root system. On the other hand, options A) fungi associated with the roots, B) mycorrhizae, and D) root hairs all contribute to increasing the surface area available for water absorption.
Fungi associated with the roots and mycorrhizae form mutualistic relationships with plant roots. These fungi extend their hyphae into the soil, effectively extending the reach of the root system and increasing the surface area available for water absorption. They also aid in nutrient uptake, enhancing the plant's ability to absorb water and minerals from the soil. Root hairs are tiny, finger-like extensions that grow from the surface of the root. Hence, option (C) is the correct answer.
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Related Questions
There is an initial population size of 11; after 3 births, 4 deaths, 2 immigrations
and 5 emigrations---what is the remaining population size?
6
7
8
9
None of the above
Answers
Answer:
7
Explanation:
Population size of 11
After 3 births
4 deaths
2 immigrations
5 emigrations
11+3-4+2-5=7
Sort the following statements as they apply to interphase, mitosis, cytokinesis, or all three phases.Is the longest stage of the cell cycleIs part of the cell cycleContains the G1 phaseContains the stages prophase, metaphase, anaphase, and telophaseIs considered the second step of cell divisionIs considered the first step of cell divisionIn this stage, the newly created cells physically separate.In this stage, the replicated genetic information is separated.Contains the G2 phaseDNA replication happens in this stage.Checks are made during this stage to ensure that conditions are suitable for cell division.InterphaseMitosisCytokinesisAll Three Stages
Answers
Interphase: Is the longest stage of the cell cycle. Contains the G1 phase, S phase, and G2 phase. Mitosis: Contains the stages prophase, metaphase, anaphase, and telophase. Cytokinesis: In this stage, the newly created cells physically separate.
The cell cycle is the process by which cells grow and divide into two identical daughter cells. It is divided into two main stages: interphase and the mitotic phase, which is further subdivided into mitosis and cytokinesis. Interphase is the longest stage and is when the cell grows, replicates its DNA, and carries out normal cellular functions. It can be further divided into three sub-phases: G1, S, and G2. During G1, the cell grows and prepares for DNA replication. During the S phase, DNA replication occurs, and during G2, the cell prepares for mitosis.
Mitosis is considered the first step of cell division and consists of four stages: prophase, metaphase, anaphase, and telophase. During these stages, the replicated genetic material condenses into chromosomes, aligns in the centre of the cell, separates and moves to opposite poles, and eventually forms two nuclei in the daughter cells. Cytokinesis is considered the second step of cell division and involves the physical separation of the two daughter cells. In animal cells, a contractile ring made of actin and myosin filaments constricts around the cell, while in plant cells, a cell plate forms and separates the daughter cells.
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in what ways does ludus love require imagination?
Answers
Ludus love requires imagination as it involves playful and creative expressions in various ways.
How does imagination contribute to ludus love?Ludus love requires imagination in several ways. Firstly, imagination fuels creativity and playfulness, allowing individuals to come up with fun and inventive ways to engage with their partners. It enables them to think outside the box and create unique experiences that bring joy and excitement to the relationship.
Secondly, imagination helps break free from traditional relationship norms and expectations. Ludus love thrives on spontaneity and non-conformity, and imagination plays a key role in envisioning alternative ways of expressing love and affection.
It allows couples to explore new possibilities, experiment with different roles, and engage in shared fantasies, adding an element of adventure and novelty to their connection.
Furthermore, imagination enhances communication and emotional connection in ludus love. It enables partners to understand each other's desires, needs, and boundaries, fostering a deeper sense of empathy and understanding.
Through imaginative play and role-playing, couples can explore and express their emotions in a safe and playful environment, strengthening their bond.
In summary, ludus love requires imagination to foster creativity, break free from norms, and enhance communication. It adds an element of joy, adventure, and novelty to the relationship, keeping the connection alive and exciting.
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an invasive species: is any species that has been genetically modified by man. is any species that causes disease and death in host organisms. is always the competitively dominant species in an ecosystem. is any species that has a negative impact on community diversity. is any non-native species that becomes established in a new ecosystem.
Answers
Answer: Your will be An invasive species is any species that has a negative impact on community diversity.
Signs and symptoms of a sympathomimetic drug overdose include:A. sedation.B. tachycardia.C. hypotension.D. slurred speech.
Answers
Sedation, tachycardia, hypotension, and slurred speech are warning signs and symptoms of a sympathomimetic medication overdose.
What is symptom?A subjective sign of a sickness or disease, such as pain, nausea, or weakness, is referred to as a symptom. It is any ill-feeling or bodily or mental alteration brought on by a sickness, and it may be accompanied by objective symptoms like aberrant test findings.
When certain substances like cocaine or heroin are consumed in excessive doses, the sympathetic nervous system, which is responsible for these symptoms, is stimulated. Some typical signs of an opioid overdose include confusion, hallucinations, excessive bowel movements, panic, seizures, hypothermia, hypertension, tachycardia, hyperthermia, mydriasis (dilated pupils), nausea, vomiting, urination, diarrhea, muscle fasciculations, weakness, and arrhythmia.
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Describe how the defect in the Single-Mutant (Sev R7 precursor cell causes the cell to become cone cell instead of a photoreceptor cell. No response entered (c) The scientists predict that the presence of activated Ras in the Double-Mutant (Sev RasD) R7 precursor cell will enable the cell to differentiate into an R7 photoreceptor cell Based on Figure evaluate the likely accuracy of their prediction_ No response entered (d) The Sev RTK is expressed In more cell types than just R7 precursor cells, and It appears to be important in determining the phenotypes of these Other cells. Explain how one receptor can Induce different phenotypes In different cell types: No response entered
Answers
The Ras protein cannot bind to Sev RTK, so there is no signaling pathway causing the cell to become a cone cell.
RAS proteins play an important role in normal development. Active RAS promotes cell growth, proliferation, and migration. RAS in normal cells receives and obeys signals to rapidly switch between active (GTP form) and inactive (GDP form) states.
Ras proteins are proto-oncogenes that are frequently mutated in cancers in humans. They are encoded by three genes that are widely expressed: HRAS, KRAS, and NRAS. These proteins are GTPases, which act as molecular switches, regulating pathways involved in cell proliferation and survival. KRAS is the most frequently mutated of the three Ras isoforms, accounting for 75% of Ras-mutant cancers in 19 of the 29 cancer types listed in Table 1.
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Which best describes pitch?
the amount of time taken for a longitudinal wave to produce one cycle the number of cycles per second perceived by the human ear the amplitude of a wave when the natural frequency is matched the distance between two corresponding parts of a transverse wave
Answers
The answer is B. the number of cycles per second perceived by the human ear
I got this question right :)
The pitch is the number of cycles per second perceived by the human ear. The correct option is B.
What is pitch?The ability to assess sounds as "higher" and "lower" in the sense associated with musical melodies is known as pitch.
Pitch is a perceptual feature of sounds that allows their ordering on a frequency-related scale.
Pitch in physics refers to a sound wave's specific frequency, which is expressed in Hertz (Hz).
There are two ways in which these frequencies match musical notes. high tone: A high pitch is one that vibrates at a high frequency.
Pitch is a perceptual quantity that depends on the listener, but frequency is a physical quantity that indicates the number of vibrations per second. In truth, our ears perceive pitch rather than frequency.
The pitch is how many cycles per second the human ear can detect.
Thus, the correct option is B.
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blackwell's five-minute veterinary consult: laboratory tests and diagnostic procedures - canine and feline
Answers
Blackwell's Five-Diminutive Veterinary Counsel Research Facility Tests and Person Methods- Canine and Cat may be a comprehensive asset that gives speedy and viable data on research facility tests and person methods for dogs and cats.
This book serves as a valuable reference for veterinarians and veterinary specialists, advertising a broad run of data on the elucidation and operation of research facility tests in veterinary medications.
arrangementIt covers different person strategies, counting blood tests, urinalysis, imaging ways, cytology, and more. The book is organized in a simple- personal utilize arrange, permitting specialists to penetrate the snappily required information.
Each test and strategy is depicted in detail, at the side proposals, test collection and taking care of rules, elucidation of comes about, and understood pitfalls.
Too, the book gives references for more distant perusing and resources for new research facility bolster. With its brief and commonsense approach.
Blackwell's Five-Miniature Veterinary Counsel Research Facility Tests and Person Strategies may be a valuable apparatus for veterinarians and veterinary specialists, abetting them in making educated suppositions concerning person testing and upgrading the general quality of understanding care.
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Zebra mussels were first discovered in north america in the great lakes in 1988. This invasive species eats phytoplankton and other microscopic organisms in fresh water. What would be most likely effect if zebra mussels are introduced into a local fresh water lake?
Answers
Which technique would be the best way for a geologist to get a sense of the history of an area?
O examining the relationships and patterns in rock layers
O looking for and examining the oldest rocks in the area
O observing current geological features and characteristics
O surveying the overall shape of the landscape
Answers
Answer: B
Why: because History is the study of past events, so it makes sense to find the oldest rocks in the area, because the older that things are, the most history that they have.
A would not be correct because patterns are not history.
C would not be correct because current features are not history, that is observing things in the present.
D would not be correct because shape has nothing to do with history.
What type of organism is a crab?
Answers
Answer:
Benthos
Explanation:
because they live on the ocean floor
Answer:
Crabs are Benthos.
Explanation:
Crabs belong to the subphylum CrustaceanCrabs are invertebratesCrabs are neither amphibians nor reptilesLife in the benthos region is organized by size. Benthic organisms live on or just beneath the bottom of the lagoon or in the intertidal zoneCrabs live on ocean floor.TRUE/FALSE. "If a parent cell has 20 chromosomes and undergoes mitosis, the daughter
cells will each contain 10 chromosomes."
Answers
The statement "If a parent cell has 20 chromosomes and undergoes mitosis, the daughter cells will each contain 10 chromosomes." is False. If a parent cell has 20 chromosomes and undergoes mitosis, the daughter cells will each contain 20 chromosomes, not 10.
Mitosis is the process of cell division that produces two identical daughter cells from a single parent cell. During mitosis, the parent cell duplicates its chromosomes, and the two resulting copies, called sister chromatids, are separated and distributed to the two daughter cells. The process of chromosome duplication and separation ensures that each daughter cell receives the same number of chromosomes as the parent cell. Therefore, if the parent cell has 20 chromosomes, each daughter cell will also have 20 chromosomes.
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In terms of making biofuel, which farm crop would result in the largest amount of oil produced per acre of crop? Select one: a. Algae b. Corn Oil c. Corn d. Soybeans
Answers
Option A: In terms of making biofuel, the farm crop that would typically result in the largest amount of oil produced per acre of crop is Algae.
Algae are known for their high oil content, which can be extracted and converted into biofuel. Algae have a fast growth rate and high oil productivity, making them an attractive option for biofuel production. They can be grown in large quantities in relatively small areas, such as ponds or bioreactors, maximizing the oil yield per acre.
However, compared to algae, the oil content and yield per acre in other crops mentioned here are generally lower. Corn and soybeans are typically cultivated for their primary agricultural uses, such as food crops or animal feed, rather than as dedicated oil crops.
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21. Sickle Cell Anemia is condition that shows codominance. The genotype for normal blood cells is NN. Sickle
cell trait is the heterozygous condition (NS) and contains both normal and sickle shaped blood cells. Sickle cell
disease (SS) is when all of the blood cells are sickle-shaped and has lifelong medical implications. A man with
sickle cell trait has a child with a woman with sickle cell trait.
Complete the Punnett Square.
What is the probability of having a child with sickle cell trait?
m. What is the probability of having a normal offspring?
What is the probability of having a child with sickle cell disease?
k.
1.
n.
Answers
One of the genetic diseases known as sickle cell disease is sickle cell anemia. Red blood cells, which deliver oxygen to every region of the body, are affected in terms of structure.
What causes sickle cell anemia?Sickle cell is a hereditary condition brought on by a gene deficiency. Only when two genes—one from the mother and one from the father—are inherited together will a person be born with sickle cell disease.
The Punnett square for the cross between a man with sickle cell trait (NS) and a woman with sickle cell trait (NS) is attached below.
The probabilities for each possible offspring are:
25% chance of having a child with normal blood cells (NN)50% chance of having a child with sickle cell trait (NS)25% chance of having a child with sickle cell disease (SS)Therefore, the probability of having a child with sickle cell trait is 50%, the probability of having a normal offspring is 25%, and the probability of having a child with sickle cell disease is 25%.
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A white carnation flower is cut and placed in a flask containing water mixed with blue food color. After some time, it is observed that the petals of the flower start turning blue. Which plant tissue is responsible for transport of the blue water to the flower?
*
1 point
Captionless Image
A) Xylem
B) Phloem
C) Stomata
D) Chlorophyll
Answers
Answer:
Which plant tissue is responsible for the transport of blue water to the flower? ANSWER: ( A ) Xylem
Explanation:
The xylem is a plant vascular tissue that conveys water and dissolves minerals, from the roots to the remaining of the plant, The Xylem tissue consists of a variety of specialized, water-conducting cells known as tracheary elements. Their main role is in the transportation of food.
What is a model that uses DNA comparisons to see how long two different organisms have been evolving independently from each other?A. molecular clock hypothesisB. phylogenetic treeC. cladogramD. evolutionary tree
Answers
A model that uses DNA comparisons to see how long two different organisms have been evolving independently from each other is referred to as molecular clock. It makes use of a genetic material that go through mutation. This is used to calculate the time of evolution between two different organisms.
A phylogenetic tree is also called as evolutionary tree. It is a diagram used to illustrate the lines of evolutionary descent of various species from a common ancestor. A cladogram is is a diagram that illustrate the relationships of various froups of taxa.
Answer - A. molecular clock hypothesis
For natural selection to result in evolutionary change:____.
a. Reproductive success of different phenotypes must differ.
b. Variation must be inherited from one generation to the next.
c. Variation must exist in a population.
Answers
For natural selection to result in evolutionary change, Reproductive success of different phenotypes must differ, Variation must be inherited from one generation to the next. and Variation must exist in a population. The correct answer is options (a), (b) and (c).
a. Reproductive success of different phenotypes must differ: Natural selection occurs when certain traits or phenotypes confer advantages in survival and reproduction. b. Variation must be inherited from one generation to the next: For natural selection to operate, there must be genetic variation within a population. This variation is the result of genetic mutations, recombination, and other genetic processes.
c. Variation must exist in a population: Natural selection acts upon existing variation within a population. Without variation, there would be no differences for selection to act upon, and no evolutionary change would occur. Therefore, for natural selection to lead to evolutionary change, there must be variation within a population, that variation must be heritable, and different phenotypes must experience differential reproductive success. Hence, all of the given option (a, b and c are correct ).
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a mixed nerve consists of both __________ and ___________.
Answers
Hope that helped :)
Is reproduction an essential life process ?
Answers
a living organism that possesses a novel combination of genetic material obtained through the use of modern biotechnology
Answers
A living organism that possesses a novel combination of genetic material obtained through the use of modern biotechnology refers to a genetically modified organism (GMO). GMO has been engineered to exhibit new traits or characteristics that can be beneficial for various purposes, such as increased crop yields or improved resistance to environmental stressors.
The process goes as follows:
1. Living organism: This refers to any organism that exhibits the characteristics of life, such as growth, reproduction, and metabolism. Examples include plants, animals, and microorganisms.
2. Novel combination: This implies the introduction of new or unique genetic traits that were not previously present in the organism's natural genetic makeup.
3. Genetic material: This refers to the DNA (deoxyribonucleic acid) of an organism, which carries the instructions for the development, functioning, and reproduction of the organism.
4. Modern biotechnology: This involves the use of advanced scientific techniques and technologies to manipulate an organism's genetic material. Examples of modern biotechnology techniques include gene editing, gene cloning, and recombinant DNA technology.
To create a GMO, scientists use modern biotechnology techniques to insert specific genes from one organism into the DNA of another organism. This results in a novel combination of genetic material, which provides the GMO with new traits or characteristics that were not previously present. For example, a crop plant might be genetically modified to be resistant to certain pests or to tolerate specific herbicides.
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Respondent behavior is defined as a(n) ________ response to some stimulus.
A) novel
B) operant
C) automatic
D) generalized
Answers
Correct Option is B. The term "respondent" is used to distinguish this type of behaviour from "operant" behaviour, which is influenced by its consequences.
Respondent behavior refers to an automatic and reflexive response that occurs in reaction to a particular stimulus.
It is a behavior that is triggered by an antecedent stimulus and does not involve deliberate decision-making or learning from consequences.
Respondent behavior is characterized by its novelty, as it represents a unique reaction to a specific stimulus. For instance, when a puff of air is directed towards a person's eye, the natural response is an automatic blink.
This blink is considered a respondent behaviour because it is an involuntary reaction that occurs in direct response to the specific stimulus.
In summary, respondent behaviour is an innate and reflexive response to a stimulus, with the term "respondent" highlighting its automatic nature. It is distinct from operant behaviour, which is influenced by the consequences of an individual's actions.
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A recent encyclopedia entry about dogs cites multiple research papers done by scientists at veterinary schools. According to the article, Labrador retrievers come in two specific breeds: English and American. The English breed is described as stocky and heavy, while the American breed is described as tall and lanky. The article describes current scientific research as showing that males of both breeds usually weigh about 29-41 kg (65-90 lb), and females weigh 25-32 kg (55-70 lb). Coat colors for both breeds come in solid black, yellow, or chocolate. All labs have strong tails and webbed feet, which help them swim. Devon would like to use this information to determine if his new dog is an English or American Labrador retriever.
Which best describes the reliability of the information?
It is not reliable because only scientists can use scientific information for reference.
It is not reliable because it doesn’t talk about how to test and only gives data about the breeds.
It is reliable because the article is based on multiple studies done by scientists at multiple veterinary schools.
It is reliable because it gives information about both types of Labradors in addition to information about other types of dogs.
Answers
Answer:
It is reliable because the article is based on multiple studies done by scientists at multiple veterinary schools.
Explanation:
The information in the article can be described as reliable due to the fact that it is based on multiple studies by scientists.
When a study is carried out by different group of independent researchers and a similar result if obtained, the results becomes more or less a theory. A research that is reproducible and gives similar result can totally be relied on for information.
Which classification of joints has a joint cavity and ligaments to provide support for articulating bones?
Answers
Answer:
b. Synovial joints
Explanation: is correct
pet uses: select one: a. ultrasound to localize tumor location b. an antibody to localize tumors c. x-rays to measure tumor activity d. radioactive glucose to measure tumor activity
Answers
PET uses: d.) radioactive glucose to measure tumor activity. PET (Positron Emission Tomography) uses radioactive glucose to detect areas of high metabolic activity, which is commonly associated with tumors. This allows for accurate tumor localization and assessment of its activity. Option d) is the correct answer.
Ultrasound, option A, uses high-frequency sound waves to produce images of the body's internal organs and tissues. When it comes to tumor localization, ultrasound can be particularly helpful for identifying the location of tumors that are close to the surface of the body, such as in the breasts, thyroid, or testicles. However, ultrasound may not be as effective at identifying tumors that are deeper within the body, or that are located behind other organs or tissues.
Option B, using an antibody to localize tumors, is a bit different. This approach involves the use of specific antibodies that are designed to recognize and bind to proteins or other markers that are associated with tumors. These antibodies can be injected into the body and then detected using imaging techniques like PET (positron emission tomography) or SPECT (single photon emission computed tomography). By targeting specific markers on tumor cells, this approach can help to identify tumors even when they are small or hard to detect with other imaging methods.
Option C, using x-rays to measure tumor activity, is another useful tool in the arsenal of cancer detection and monitoring. X-rays work by passing a small amount of ionizing radiation through the body, which is absorbed differently by different tissues depending on their density and composition. By detecting the differences in how x-rays are absorbed, doctors can identify the presence of tumors or other abnormalities. In terms of measuring tumor activity, x-rays can be particularly useful for assessing how fast a tumor is growing or spreading, as well as for monitoring how well a particular treatment is working.
Finally, option D involves using radioactive glucose to measure tumor activity. This approach is based on the fact that cancer cells typically consume glucose at a much higher rate than normal cells, as part of their rapid growth and replication. By injecting a radioactive form of glucose into the body and then imaging the area of interest using PET or other techniques, doctors can identify areas of high glucose uptake, which are typically indicative of the presence of cancer. This approach can be particularly helpful for detecting tumors that are hard to find using other imaging methods, as well as for monitoring the progression of cancer over time.
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Is climate change and global warming the same thing.
Answers
Answer: No
Explanation:
Global warming refers only to the Earth’s rising surface temperature, while climate change includes warming and the “side effects” of warming—like melting glaciers, heavier rainstorms, or more frequent drought. Said another way, global warming is one symptom of the much larger problem of human-caused climate change.
It is believed that weed killers like 2,4-D and 2,4,5-T may
work by stimulating cell division. Why would the stimulation
of cell division make these chemicals effective weed killers?
Answers
Herbicides are a broad category of pesticides that are used to get rid of undesirable plants like weeds and grasses that hinder the development and productivity of desired agricultural crops. Both 2,4-D and 2,4,5T are also known as 2,4-Dichlorophenoxyacetic acid and
Herbicides like 2,4-D and 2,4,5-T are also referred to as auxin-type herbicides or plant growth regulators. Auxins are hormones that affect cell division and elongation in order to control cell growth.Auxins are required by plant cells in the proper concentration for growth and development. If auxin levels are too low, plant growth is not promoted at all, and if levels are too high, plant growth is excessively stimulated. Most grasses are not killed by 2,4-D and 2,4,5 T, but broadleaf weeds are. It moves to the plant's meristems after being absorbed through the leaves. These herbicides affect the tissues' cells, causing them to continually divide and proliferate. The plant finally dies as a result of this unchecked, unsustainable growth, which also causes stem curling and withering of the leaves.Thus, by promoting cell division, these compounds act as herbicides.
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What is the primary source of energy for all
living organisms?
Answers
Answer: the sun
Explanation:
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scientists are continually discovering and documenting new species, although the rate of discovery of new species varies by group. in general, how would the discovery and documentation of species new to science change your estimates of the numbers of species that are potentially threatened? why is the discovery of new species sometimes a critical conservation issue?
Answers
Scientists are continually discovering and documenting new species, although the rate of discovery of new species varies by group.The numbers of species that are potentially threatened because it is endagered sometimes a critical conservation issue.
Vulnerable unit referred to species that considered to be facing a high risk of extinction in the wild. Endangered referred to new species that facing an extremely high risk of extinction in the wild. It is an organism that helps define an entire ecosystem.
Species critically endangered because they are loss of genetic variation and habitat. It is so important for us to protect our new species becuase it privodes healthy ecosystem which depend on plant and animal as well as for ecological cycle.
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What are the 4 steps of mitosis? What occurs during each?
Answers
Explanation:
There are four stages of mitosis: prophase, metaphase, anaphase and telophase.1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres 2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell) 3) Anaphase: sister chromatids are pulled to opposite poles of the cell 4) Telophase: nuclear envelope reforms, chromosomes unfold into chromatin, cytokinesis can begin The order of the stages of mitosis can be remembered using the mnemonic PMAT.
Acetylcholine released from the vagus opens channels in the cardiac membrane that allow __ ions to diffuse outward, which decreases the rate of depolarization of the nodal cells
Answers
Acetylcholine released from the vagus nerve opens potassium (K+) channels in the cardiac membrane.
The vagus nerve in the heart releases the neurotransmitter acetylcholine (ACh). ACh triggers a signalling cascade that ultimately opens potassium (K+) channels in the cardiac membrane when it interacts to certain receptors on the surface of heart muscle cells. K+ ions can leak from the cell through these channels, hyperpolarizing the membrane potential and making it more negative.
The heart's nodal cells, which are in charge of starting the heartbeat, are affected by the membrane potential's hyperpolarization in two different ways. The heart's total rate of electrical activity is first slowed by a reduction in the rate of nodal cell depolarization.
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