Muscle contractions involving circular & longitudinal muscles to move chyme through the gi tract.
a. True
b. False
Answers
The given statement that says "Muscle contractions involving circular and longitudinal muscles move chyme through the GI tract" is: True. Therefore, option a is the correct answer.
The GI tract's smooth muscles work in conjunction with the enteric nervous system, which is made up of millions of neurons located in the lining of the GI tract. It's also in charge of maintaining the muscle contractions that move food through the digestive system, breaking it down into smaller particles as it travels through.
These contractions assist in moving the chyme, which is a mixture of partially digested food and stomach acids, through the GI tract.
What are muscle contractions?The process by which muscles tighten and relax is known as muscle contractions. The contraction and relaxation of muscle fibers create muscle contractions. The muscle fibers in a muscle group work together to generate the necessary force for motion through the use of these contractions.
There are two primary types of muscle contractions: isotonic and isometric. In isotonic contractions, tension is applied to the muscle as it shortens, resulting in motion. The tension applied to the muscle remains constant throughout the exercise in isometric contractions.
What is the GI tract?The GI (gastrointestinal) tract is a system of organs that stretches from the mouth to the anus. The primary function of this system is to digest food and absorb the nutrients that the body requires to sustain life. The GI tract's organs include the mouth, esophagus, stomach, small intestine, and large intestine.
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Related Questions
During a laboratory exercise in class, Wei is asked to observe cells from different organisms. Her teacher asks her to list structures that are found in all cells. Which of the following could be found in all the cells that she studied?
a.
cell membrane, cytoplasm, DNA
b.
cell membrane, centrioles, DNA
c.
cell membrane, cell wall, DNA
d.
cell wall, cytoplasm, DNA
Answers
Answer:
A
Explanation:
the answer is A because all of this organelles found in every organism
The things that should be found in all the cells should be option A. cell membrane, cytoplasm, DNA
The cell that contains cell membrane, cytoplasm, DNA:
The cells that have the common structure should be Prokaryotic and eukaryotic cells. All types of cells should contains the plasma membrane, ribosomes, cytoplasm, and DNA. Here the nucleus should be considered when the cell should be stored into their DNA that represent the genetic material
Therefore, the correct option is A.
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TRUE/FALSE. the 9:3:3:1 ratio exhibited in the f2 generation of a dihybrid cross is a genotypic ratio.
Answers
This statement is FALSE that the 9:3:3:1 ratio exhibited in the f2 generation of a dihybrid cross is a genotypic ratio.
A dihybrid crosses two characteristics. One allele for each attribute displays total dominance since both parents are heterozygous. This indicates that although the phenotype is dominant, both parents carry recessive alleles. The dihybrid cross's anticipated phenotypic ratio is 9: 3: 3: 1.
All plants in the F1 generation are heterozygous yellow round (YyrRr). When this plant is self-pollinated, nine yellow round plants, three yellow wrinkled plants, three green round plants, and one green wrinkled plant are produced in the F2 generation. Dihybrid phenotypic ratio 9:3:3:1 refers to this. This Mendel is referred to as the "Law of Independent Amount."
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what is the difference between land and marine iguanas?
Answers
Answer:
land iguanas thrive on land and cannot swim aqua iguanas thrive on the water and can swim
Explanation:
An organism is found that has the following traits:
• Produces seeds
• Has a vascular system
• Multicellular
What kingdom does this organism most likely belong in?
O A. Fungi
• B. Plantae
• C. Animalia
• D. Protista
Answers
Answer: The Organism that produces seeds, has a vascular system and a multicellular belongs to kingdom of Plantae. Hence option B is the correct answer.
Explanation:
The Plantae kingdom consists of multicellular eukaryotic creatures such as mosses, ferns, conifers, and flowering plants. They are autotrophic, which means that they generate their own food via photosynthesis. A cellulose cell wall, chloroplasts for photosynthesis, and a big central vacuole for storage are all features of plant cells.
Plants can reproduce sexually or asexually, and their life cycles alternate between haploid and diploid stages. They can react to external stimuli such as light and gravity, and they can adapt to their surroundings through processes such as growth and development.
Plants are also essential given that they produce oxygen and sequester carbon.
Air Pollution: Goal is to reduce the carbon footprint of employee travel by 20%. . You have 10 employees that drive to work each day. You will need to find out their Access www.ghgprotocol.org and calculate employee carbon footprint using the Devise 4 ways you can reduce employee travel to reach your goal programs? If so what will it cost the company to implement these goals? Calculate • Will your organization invest in transportation incentives or employee recognition ROI, payback, and a cost benefit analysis for a feasibility study What are the environmental, social, and economic impacts?
Answers
Air pollution is a serious problem that can lead to health problems and environmental damage.
The goal of reducing the carbon footprint of employee travel by 20% can be achieved by implementing transportation programs.
Promote telecommuting: Employees can work from home instead of commuting to work. This can be done through a company-wide policy or by providing the necessary equipment to work from home.
Encourage carpooling: Employees can share rides to work with coworkers who live nearby. This can be incentivized by offering preferred parking spots or transportation credits.
Provide public transportation subsidies: Employees can be given subsidies for using public transportation to get to work. This can be done by providing a transit pass or reimbursing employees for transit expenses.
Implement a bike-to-work program: Employees can be encouraged to bike to work by providing bike storage, changing facilities, and safety equipment.
The environmental impact of reducing employee travel is a reduction in greenhouse gas emissions. The social impact is an improvement in the health and well-being of employees who are exposed to less pollution. The economic impact is a reduction in transportation costs for the company.
ROI, payback, and a cost-benefit analysis for a feasibility study are important for determining the effectiveness of transportation programs.
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there is mounting empirical evidence that infrared heat provides special assistance to flush the body of toxins. true false question. true false
Answers
The statement "there is mounting empirical evidence that infrared heat therapy provides special assistance to flush the body of toxins. true false question." is True.
There is growing scientific evidence that suggests that infrared heat therapy can help flush the body of toxins. Infrared heat is a type of radiant heat that is absorbed directly by the body's tissues and organs, causing them to vibrate and produce heat.
One of the ways that infrared heat therapy helps to flush toxins from the body is by increasing circulation. As the body's temperature rises, blood vessels dilate, allowing more blood to flow through the body. This increased circulation helps to carry waste products and toxins away from the organs and tissues and out of the body.
In addition, infrared heat therapy can help to stimulate the body's sweat glands, which can also help to eliminate toxins from the body. Sweating is one of the body's natural detoxification mechanisms, and the increased sweating that occurs during infrared heat therapy can help to flush out toxins through the skin.
Overall, there is mounting evidence that infrared heat therapy can be a valuable tool for detoxification and improving overall health. However, it is important to note that more research is needed to fully understand the mechanisms behind this effect and to determine the optimal duration and frequency of infrared heat therapy for maximum bene
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An easy way to explain diverging plates is to say
Answers
Answer:
its two plates moving away from each other because of something like an earthquake or a volcano formed so the plates moved etc
hope this helps sorry
Explanation:
Classify these hypotheses about the ocean as falsifiable or non-falsifiable.
Limestone erodes faster than
basalt when exposed to
ocean salt water.
The rugged Panama coastline
offers a wonderful experience
for fishing enthusiasts.
Shallower tide pools support
more algae growth.
Warm ocean water is
more enjoyable to swim
in than cool ocean water.
Answers
Falsifiable: The shoreline of Panama gives a magnificent experience, and swimming in warm water is more delightful.
Non-falsifiable: Basalt erodes more slowly than limestone, and algae can develop in tide pools that are shallower.
Falsifiability is the capacity to show that a claim, assertion, theory, or hypothesis is false. The idea of falsifiability states that a scientific hypothesis can only be believed if it can be disproven. This implies that the theory must be able to be disproven by testing. The possibility of the hypothesis being disproved at a later point in time or location does not necessarily imply that it is faulty or inaccurate.
Those hypotheses that are intrinsically impossible to refute due to technical or subjective issues. Confidently stating that a thesis or hypothesis is true or untrue, even when the notion or hypothesis may not be able to be refuted by observation or the results of any physical experiment, is typically proof; non-falsifiability is non-falsifiability without strong or sound reasoning.
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hurry due in five min plz
Answers
Answer:
It's either D or B, I'm not really sure
Explanation:
In 1972, EPA issued a cancellation order for DDT based on its adverse environmental effects, such as those to wildlife, as well as its potential human health risks. Since then, studies have continued, and a relationship between DDT exposure and reproductive effects in humans is suspected, based on studies in animals.
Human health effects from DDT at low environmental doses are unknown. Following exposure to high doses, human symptoms can include vomiting, tremors or shakiness, and seizures. Laboratory animal studies showed effects on the liver and reproduction. DDT is considered a possible human carcinogen.
think of an object person or place at home that functions similar to the cytoplasm
Answers
Answer:
The cytoplasm is like a jello salad because the cytoplasm surrounds and suspends the cell's organelles like the jello surrounds and suspends the fruit in the jello salad.
Explanation:
Which uses of soil are discussed in the video? Check all that apply. as a habitat for animals to live in as a way to clean and store water as a place for plants and crops to grow as a material to clean and smooth skin as a building material for homes and buildings as an area to build windmills for energy production
Answers
Answer:
3. As a place for plants and crops to grow
4. As a material to clean and smooth skin
5. As a building material for homes and buildin
Answer:
3,4,5
Explanation
A father and mother are both heterozygous brown eyes. If they have 24 kids. What percent of the offspring will have blue eyes.
Answers
Answer:
The answer is 25%
Explanation:
If you draw one of the square boxes and plug in the heterozygous Bb and find that only 25% of the offspring will have blue eyes.
during fertilization each parent contributes to the dna being passed on to the offspring. which genetic expression in the offspring is validation of the genetic contribution by a parent
Answers
During fertilization, each parent contributes genetic material to the offspring. The genetic expression in the offspring that validates the genetic contribution by a parent is the presence of specific traits or characteristics that are inherited from that parent.
Genetic expression refers to the manifestation of genes in an individual's physical or observable traits. These traits can be influenced by both genetic factors and environmental factors. When an offspring inherits specific traits or characteristics that are known to be present in one of the parents, it validates the genetic contribution from that parent.
For example, if a child inherits their father's eye color or their mother's hair texture, these observable traits serve as validation of the genetic contribution by the respective parent. The expression of genetic traits in the offspring provides evidence of the inheritance of genetic material from each parent during fertilization.
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what are the main conditions the cell checks for before passing the s/g1 checkpoint? the dna is intact; growth hormone is present in the environment. dna replication is complete and the dna is intact. dna replication has begun and the cell has plenty of space. the dna is intact; the cell has plenty of nutrients and space. the cell has plenty of nutrients and space, and growth hormone is present in the environment.
Answers
he dna is intact; the cell has plenty of nutrients and spaceare the main conditions the cell checks for before passing the s/g1 checkpoint
At the S checkpoint, what cell conditions are monitored?
The correct replication of DNA during the S phase is one of the important activities controlled by the cell cycle checkpoint monitoring system. Even when all cell cycle regulators are completely functional, a tiny proportion of replication mistakes (mutations) are passed on to daughter cells.
The cell must pass the G1 checkpoint before moving on to the next phase of interphase. This requires the presence of cyclin proteins as well as the correct biological circumstances. If the cell survives the checkpoint, it will enter the S phase, which is when DNA replication occurs.
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What is the organ for excretion for chlamydomonas?
Please I need the answer asap
Answers
Answer: Chlamydomonas is a genus of green algae
Explanation:
You may notice that the slope in the ice segment is steeper than the water segment.
Why is that?
a) Ice has a higher density than water and is therefore easier to melt
b) More heat is required to raise the temperature of ice
c) More heat is required to melt the ice than to evaporate it
d) More heat is required to raise the temperature of liquid water
Answers
The slope in the ice segment is steeper than in the water segment because more heat is required to raise the temperature of the ice.
Ice is heated by changing its phase from solid to liquid, or from ice to water. Melting is required to turn ice into water. Ice melts at 0 degrees Celsius. The temperature won't change until all the ice has melted. The temperature will begin to rise once all the ice has melted.
The transformation of water into gas comes next. Steam is produced when water boils. Water begins to vapourize at a temperature of 1000C. The temperature is unaffected by the phase change. Due to the strong intramolecular hydrogen bonds between water molecules, a large quantity of heat is needed. Before the water molecules can be transformed into vapors, the heat supplied is utilized to first break the hydrogen bonds between the water molecules. As a result, the ice segment's slope is steeper than the water segment's.
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The primary function of the kidney is to exchange molecules across a membrane between the blood and the urine. One type of kidney cell has a basic rectangular shape, except for a single surface, which is lined with tiny, finger-like projections that extend into the surrounding extracellular space. Which of the following best explains the advantage these projections provide the cell? The projections increase the volume of the cell without affecting the surface area, which increases the metabolic needs of the cell. B The projections increase the surface area-to-volume ratio of the cell, which allows for more efficient nutrient exchange with the environment. The projections increase the speed at which an individual molecule can move, resulting in faster nutrient Which of the following best explains the advantage these projections provide the cell? A The projections increase the volume of the cell without affecting the surface area, which increases the metabolic needs of the cell. B The projections increase the surface area-to-volume ratio of the cell, which allows for more efficient nutrient exchange with the environment. The projections increase the speed at which an individual molecule can move, resulting in faster nutrient exchange with the environment D The projections increase the selectivity of the membrane because the small size of the projections limits the number of transport proteins that can be embedded in the membrane.
Answers
Answer:
The answer is B: The projections increase the surface area-to-volume ratio of the cell, which allows for more efficient nutrient exchange with the environment.
Explanation:
These finger-like projections, also known as microvilli, are commonly found in cells that are actively involved in absorption or secretion, such as the kidney cells in this scenario. They significantly increase the surface area of the cell, thereby allowing more transport proteins to be embedded in the cell membrane and facilitating more efficient exchange of molecules between the cell and its environment. This increase in surface area doesn't significantly affect the volume of the cell, so it doesn't considerably increase the metabolic needs of the cell.
Therefore, these projections do not primarily increase the volume of the cell (option A), the speed of individual molecule movement (option C), or the selectivity of the membrane by limiting the number of transport proteins (option D). Instead, they enhance the cell's capacity for molecular exchange by increasing its surface area.
Explain why transcription occurs in the nucleus of eukaryotes.
Bonus: Compare the processes of replication and transcription.
Answers
Answer:
Transcription occurs in eukaryotes in a way similar to prokaryotes. However, initiation is more complex, termination does not involve stem-loop structures and transcription is carried out by three enzymes (RNA polymerases I, II and III) each of which transcribes a specific set of genes and functions in a slightly different way.
Explanation:
Answer:
The transcription is the process by which the DNA molecule makes an RNA molecule using the enzyme RNA polymerase and other proteins.
Step-by-step answer:
The mRNA is then used to generate proteins by a process that is called translation which would occur in the cytoplasm. The transcription occurs in the nucleus because the DNA cannot leave the nucleus. which is the center in which the DNA is stored.
Can somebody please answer 7 and 8 for me please:)
Answers
Answer:
8) Volcanic carbon dioxide can promote global warming
Explanation:
sorry i don’t know number 7!
what event happens with the chromosomes after they form homologous pairs during prophase i?
Answers
The pairs of paired pairs unite during prophase I to form a three dimensional structure or covalently bonded, which has four chromatids. Within this tetrad structure, recombination can take place between any two chromatids.
What exactly is recombination?
Recombination is the process by which fragments of DNA are disrupted and recombined to create novel allele combinations. Through recombination, genetic diversity is created at the gene level, reflecting variations in the Genomic dna of various organisms.
What is recombination, for instance?
When two DNA molecules interact with one another, they recombine to form a new DNA molecule. One of the most well-known instances of recombination occurs during meiosis, notably during prophase I, when homologous chromosomes align in pairs and exchange DNA segments.
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A student wants to perform an investigation to explore the effects of different concentrations of fertilizer on the growth of rose bushes. What should the student use for the control group? Explain why that should be used as the control group.
Answers
Answer:
hdhdhdhdhdhd
Explanation:
The nucleic acid _________ copies DNA so _________ can be made.
Answers
first blank: rna
second blank: protein
Explain how to use a Punnett square to determine the probability of inheriting traits.
A Punnett square is a graphical representation that uses the traits of the parents to predict the probability of the possible traits-and genes of their offspring. It allows the traits from each parent to be combined in ____________- format to show all the __________and _______________possibilities the offspring may inherit.
Answers
Answer:
2 x 2
dominant
recessive
Why do sex-linked traits follow different patterns of inheritance than other
traits?
Answers
Answer:
because these genes are present in different copy numbers in males and females.
A fertilizer company is trying to find a new herbal pesticide to add to its product. Company managers know that peppermint oil or lavender oil will be used. They also know that the time of day the fertilizer is applied, morning and night, affects the pesticide. An experiment will compare all combinations of these choices. Three types of insects will be subjected to each treatment and scored for quality. What are the treatments
Answers
Answer:
Peppermint oil and morning, peppermint oil and night, lavender oil and morning, lavender oil and night
Step-by-step explanation:
Fertilisers are substances, which could be organic or inorganic, that is added to soil to increase crop yield.
Pesticide can be defined as substances that are used to control pests in an environment. Example of a pesticide includes:
- fungicides,
- herbicides( these are used to kill unwanted plants) and
- insecticides.
From the existing knowledge that the time of day the fertilizer is applied, morning and night affects the pesticide, and the Company managers know that peppermint oil or lavender oil will be used.
The insects should be subjected to the following treatments to effectively compare all combinations of these choices listed above:
- Peppermint oil and morning,
- peppermint oil and night,
- lavender oil and morning,
- lavender oil and night
a plant leaf is 0.04mm long. calculate the length of the image after the cell has been magnified 500 times
Answers
Length of leaf = 0.04
After 500 times magnitude
Length of image = 0.05*500
= 20.00
= 20mm
What are leaves?Leaf is any usually flattened green outgrowth from the stem of a vascular plant. As the primary sites of photosynthesis, leaves produce food for plants, which in turn ultimately nourish and sustain all land animals.To know more about leaves here
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What is the major cause of changes in gene expression?
Answers
Genes encode proteins and proteins dictate cell function. Therefore, the thousands of genes expressed in a particular cell determine what that cell can do. Moreover, each step in the flow of information from DNA to RNA to protein provides the cell with a potential control point for self-regulating its functions by adjusting the amount and type of proteins it manufactures.
Which structure is part of both the lower respiratory tract and the conducting system?
a) Pharynx
b) Bronchus
c) Alveoli
d) Larynx
Answers
The structure is part of both the lower respiratory tract and the conducting system is Bronchus. The correct option is b.
The bronchus is a part of both the lower respiratory tract and the conducting system. It is a large airway that branches off from the trachea and further divides into smaller bronchioles, which eventually lead to the alveoli.
The lower respiratory tract consists of the structures involved in gas exchange, including the bronchi, bronchioles, and alveoli. These structures allow for the exchange of oxygen and carbon dioxide between the lungs and the bloodstream.
The conducting system, on the other hand, refers to the airways that are responsible for transporting air to and from the lungs. This includes the trachea, bronchi, and their smaller branches. The bronchus is a specific part of the conducting system that branches off from the trachea and continues to divide into smaller bronchioles.
The pharynx (a) is part of the upper respiratory tract and serves as a common pathway for both air and food. The alveoli (c) are tiny air sacs located at the end of the bronchioles, where gas exchange occurs. The larynx (d) is also part of the upper respiratory tract and plays a crucial role in vocalization and protecting the airway.
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A man with blood type a and a woman with blood type b have three children: a daughter with type ab and two sons, one with type b and one with type o blood. what are the genotypes of the parents?
Answers
The genotype of the parents with blood types A and B will be AO (father) and BO (mother).
A, B, AB, and O are the four primary blood types (groups). Your blood type is determined by the genes you got from your parents.
Four main blood types are distinguished by the ABO system:
Blood group O - contains both anti-A and anti-B antibodies in the plasma but no antigens. A and B antigens are present in blood group AB, however there are no antibodies. Red blood cells with blood group A antigens have anti-B antibodies in their plasma. B antigens and anti-A antibodies are present in the plasma in blood group B.Since the children have all three types of blood types this means that the parents are heterozygous:
AO X BO (parents)
AB, AO, BO, OO (children)
Thus, the parents will be AO and BO.
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HELP FAST PLEASE
Iconic Maine species such as moose, Canada lynx, loons, boreal chickadees, eastern brook trout, saltmarsh sparrows and Atlantic puffins are under stress from climate change. A mutation in the boreal chickadees increases the ability of the bird to catch and eat certain insects. Which factor might determine whether the frequency of the new allele will increase?
A)whether the mutation allows the chickadees better access to food sources than those without it
B)whether those with the mutation make better mates
C)whether the mutation is dominant or recessive
D)whether the mutation is random
Answers
Answer:
A) Whether the mutation allows the chickadees better access to food sources than those without it
Explanation: USATestprep
The factor that may determine the frequency of the new allele will increase is whether the mutation allows the chickadees better access to food sources than those without it.
What do you mean by Mutation?A Mutation may be defined as sudden, stable, and inheritable changes in the genetic material of an organism.
A mutation changes the whole sequence of the genetic material and causes a change in the genotype as well as phenotypes of an organism.
Therefore, the factor that may determine the frequency of the new allele will increase is whether the mutation allows the chickadees better access to food sources than those without it.
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