Plz help
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17.Base your answer to the following question on the diagrams below of two cells, X and Y,
and on your knowledge of biology
B
Cell X
Cell Y
Identify one process that is carried out in cell that is not carried out in cell X.
Your response:
Answers
Answer:
cell y is correct
Explanation:
Related Questions
Particle movement from an area of higher concentration to an area of lower concentration
Answers
Answer: Diffusion
Explanation:
It is the movement of particles from areas of higher concentration to areas of lower concentration. It is a natural, random process. This means that it does not require extra energy input
How might gene flow between two duck populations impede each population's ability to be best adapted to its local environment?
Answers
Gene flow between two duck populations can impede each population's ability to be best adapted to its local environment in several ways.
Gene flow involves the exchange of genetic material between populations, which can introduce new alleles and genetic variation. If the two populations have adapted to different local environments, the introduction of genes from one population to another can disrupt the local adaptations. The incoming genes may carry traits that are advantageous in the donor population's environment but not in the recipient population's environment. This can lead to maladaptive gene combinations and reduce the overall fitness of both populations.Gene flow can dilute or swamp out locally beneficial alleles. If a particular allele confers a selective advantage in one population's local environment, but individuals from another population with different alleles migrate in, the frequency of the locally beneficial allele may decrease due to genetic mixing. This can hinder the population's ability to maintain or enhance adaptations to its specific environment.Gene flow can reduce genetic differentiation between populations. If there is frequent and unrestricted gene flow, the genetic boundaries between populations become blurred, and populations may lose their distinct adaptations to local environments. This can hinder their ability to respond to selective pressures and limit their capacity to evolve independently.Gene flow between duck populations can disrupt local adaptations, diminish the effectiveness of beneficial alleles, and erode genetic differentiation, thereby impeding each population's ability to be optimally adapted to their respective environments.For more such questions on Gene
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What is the blood vessel where oxygenated blood will be found
Answers
Answer:
It would be the arteries.
Explanation:
Throughout the body, the arteries deliver oxygenated blood and nutrients to all of the body's tissues, and the veins return oxygen-poor blood back to the heart.
Hope this helps! :)
your muscles contract using contractile proteins to produce movement. TRUE/FALSE
Answers
The given statement "Muscles will contract using the contractile proteins to produce a movement" will be true. Because, of the inherent mechanism of muscle tissue and the interaction between actin and myosin proteins.
Sliding Filament Theory: Sliding Filament Theory states that during muscle contraction, the actin filaments slide past the myosin filaments, resulting in the shortening of the sarcomeres (basic contractile units of muscle fibers). This sliding of filaments is made possible by the interaction between actin and myosin proteins.
Actin and Myosin Interaction: Actin and myosin are two key contractile proteins involved in muscle contraction. Actin forms thin filaments, while myosin forms thick filaments. When a muscle is stimulated, myosin heads attach to binding sites on the actin filaments, forming cross-bridges. The myosin heads then undergo a conformational change, pulling the actin filaments towards the center of the sarcomere.
ATP as an Energy Source: Muscle contraction requires energy. ATP (adenosine triphosphate) is the primary energy source for muscle contraction. ATP is necessary for the detachment of myosin heads from actin, enabling the myosin heads to bind to actin again and continue the sliding process. The breakdown of ATP into ADP (adenosine diphosphate) and inorganic phosphate provides the energy required for these steps.
Coordination for Controlled Movement: The coordinated contraction of multiple muscle fibers within a muscle allows for controlled movement. By adjusting the recruitment of motor units (a motor neuron and the muscle fibers it innervates), the body can regulate the force and speed of muscle contractions, enabling precise movements.
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true or false: dna can store information, can be replicated and can undergo rare changes.
Answers
It is true that DNA can store information, can be replicated, and can undergo rare changes.
Deoxyribonucleic acid, or DNA, is a molecule that has the capacity to store genetic data in the form of a code that determines the order of nucleotides. The transmission of traits from one generation of cells to the next is made possible by the replication and transmission of this information.
Rare alterations in DNA, known as mutations, have the potential to modify the genetic information stored inside. As a result of exposure to mutagens like radiation, chemicals, or viruses, these mutations may take place spontaneously or as a result of exposure. From having no discernible impact to producing genetic illnesses or aiding in the growth of cancer, mutations can have a variety of repercussions on the organism.
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An allele whose trait only shows up when no dominant allele is present
hidden allele
dominant allele
present allele
recessive allele

Answers
Which of the following best defines gene flow?
A. the sum of all genetic traits in a population's individuals at a given time
B: any movement of genes from one population to another
C: any movement of organisms from one environment to another
D: the random change in the frequency of an allele in a population
Answers
Answer:
The answer is B
Any movement of genes from one population to another
Explanation:
This excerpt is taken from a speech delivered in 1775 at the Second Virginia Convention, in which Patrick Henry urged the American colonists to fight for independence from the British.
I have but one lamp by which my feet are guided, and that is the lamp of experience. I know of no way of judging the future but by the past, and judging by the past, I wish to know what there has been in the conduct of the British ministry for the last ten years to justify those hopes with which gentlemen have been pleased to comfort themselves and the House. Is it that insidious smile with which our petition has been lately received? Trust it not, sir, for it will prove a snare to your feet. Suffer not yourselves to be betrayed with a kiss, but ask yourselves how this gracious reception of our petition agrees with those warlike preparations which cover our waters and darken our land.
I ask, sir, what means this martial array, if its purpose be not to force us to submission? Can gentlemen assign any other possible motive for it? Has Great Britain any enemy, in this quarter of the world, to call for all this accumulation of navies and armies? No, sir, she has none. They are meant for us: they can be meant for no other. They are sent over to bind and rivet upon us those chains which the British ministry have been so long forging.
Let us not, I beseech you, sir, deceive ourselves. Sir, we have done everything that could be done to avert the storm which is now coming on. We have petitioned; we have debated; we have appealed; we have submitted ourselves before the throne and have begged for its intervention to arrest the tyrannical hands of the ministry and Parliament. Our petitions have been slighted; our debates have produced additional disagreements and insults; our submissions have been disregarded; and we have been spurned, with contempt, from the foot of the throne! In vain, after these things, may we indulge the fond hope of peace and reconciliation. There is no longer any room for hope. If we wish to be free—if we mean to preserve inviolate those inestimable privileges for which we have been so long contending—if we mean not basely to abandon the noble struggle in which we have been so long engaged, and which we have pledged ourselves never to abandon until the glorious object of our contest shall be obtained—we must fight! I repeat it, sir, we must fight!
3
Select the correct answer.
How does the author's use of the word "throne" inform the reader?
A.
It emphasizes the rich, time-honored traditions of the British monarchy.
B.
It implies that the British monarchy commands respect from its subjects.
C.
It represents the rigid authority that Great Britain maintains over the colonies.
D.
It suggests that Great Britain is too civilized to go to war with the colonies.
Answers
A. It emphasizes the rich, time-honored traditions of the British monarchy does the author's use of the word "throne" inform the reader.
What was Patrick Henry's speech to the Second Virginia Convention summarised as?Patrick Henry delivered this statement on March 23, 1775, in protest to intervention from the Royal Fleet that Lord Dunmore, the King's designated governor, had sent in. Mr. Henry was arguing that the Virginia colony needed to form a militia to protect its right to freedom.
In his "Speech at the Virginia Convention," Patrick Henry uses the rhetorical devices of reference and repetition to argue that the colonists should feel that fighting for their independence and rights is vital and that they should do so as soon as feasible.
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from the following compounds involved in cellular respiration, choose those that are the net inputs and net outputs of glycolysis.
Answers
In a linear metabolic process involving enzyme-catalyzed reactions, known as glycolysis, glucose is converted into two molecules of pyruvate when oxygen is present or into two molecules of lactate when oxygen is not present.
Net Input: ADP, NAD⁺, Glucose
Net Output: ATP, NADH and Pyruvate,
not input or output: O₂, CO₂, coenzyme A and acetyl CoA
Anaerobic glycolysis, the latter route, is thought to be the first mechanism to have arisen in nature that produces adenosine triphosphate (ATP). In the majority of cells, glycolysis turns glucose into pyruvate, which mitochondrial enzymes then oxidize to produce carbon dioxide and water. However, due to the absence of mitochondria in some cells, most notably adult red blood cells, glycolysis serves as the only method of ATP synthesis. Glycolysis is the only method available to cells for converting glucose into ATP in the absence of oxygen. Lactic acidosis, a potentially fatal disease, is brought on by anaerobic glycolysis' excessive lactic acid generation. Numerous cancer cells have an incredibly high glycolytic enzyme capability. Cancer cells use glycolysis to make a large portion of their ATP even when oxygen is present.
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RNA from a bear is compared to RNA from a sunflower. Both will contain the
sugar deoxyribose and the base thymine
sugar deoxyribose and the base uracil
sugar ribose and the base tymine
sugar ribose and the base uracil
Answers
RNA from a bear is compared to RNA from a sunflower, both will contain the sugar ribose and the base uracil.
RNA is a single-stranded molecule composed of nucleotides linked by phosphodiester bonds.In DNA, there are four types of nucleotides, each containing one different nitrogenous base (Adenine, Guanine, Thymine and Cytosine).In RNA, thymine nitrogen bases are replaced by Uracil.In conclusion, if RNA from a bear is compared to RNA from a sunflower, both will contain the sugar ribose and the base uracil.
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which of the following statements about a common trait of late successional species is true?
Answers
The following statements about a common trait of late successional species is that they tend to have a slower growth rate compared to early successional species.
This is because late successional species are adapted to stable and mature environments with less competition and fewer disturbances. Instead of rapidly colonizing new areas, they invest more resources in long-term survival strategies such as deep root systems and thicker bark. This slow growth rate also allows them to develop complex structures and adaptations that make them more resilient to environmental stresses and better able to take advantage of available resources.
Late successional species also tend to have a longer lifespan and produce fewer, but larger, offspring than early successional species. This is because they are less likely to experience disturbances that require them to produce large numbers of offspring to ensure survival. Instead, they focus on producing high-quality offspring that have a greater chance of surviving and reproducing in the stable and mature environment they are adapted to. Overall, the slower growth rate and longer lifespan of late successional species allows them to thrive in mature, stable environments and contribute to the overall biodiversity of an ecosystem.
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TRUE OR FALSE. muscular, cardiopulmonary, and metabolic adaptations to exercise are known as the training effect.
Answers
The given statement "muscular, cardiopulmonary, and metabolic adaptations to exercise are known as the training effect." is true because the training effect refers to the physiological adaptations that occur in the muscular, cardiopulmonary, and metabolic systems in response to regular exercise.
The training effect refers to the physiological changes that occur in response to regular exercise, leading to improved performance and overall health. These adaptations involve various body systems, including the muscular, cardiopulmonary, and metabolic systems.
Muscular adaptations involve changes in muscle strength, endurance, and size. This may include increased muscle fiber recruitment, improved neuromuscular efficiency, and hypertrophy of muscle fibers. These adaptations allow for enhanced force production, reduced fatigue, and improved overall muscular function.
Cardiopulmonary adaptations involve the heart and lungs, which work together to deliver oxygen to the working muscles. Adaptations may include increased stroke volume, decreased resting heart rate, improved lung capacity, and enhanced oxygen-carrying capacity. These changes result in a more efficient cardiovascular system, allowing for better oxygen delivery and utilization during exercise.
Metabolic adaptations involve changes in the body's ability to produce and utilize energy during exercise. This may include increased mitochondrial density, improved fatty acid oxidation, and enhanced glycogen storage. These adaptations allow for more efficient energy production and utilization, leading to improved exercise performance and endurance.
So, the given statement is true.
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Three plants were grown to study the effects of nitrate and magnesium ion deficiency on their development. They were kept in the same conditions, except for the types of minerals supplied.
Use
Plant A was provided with all essential minerals.
Plant B was given all minerals except nitrate ions. Plant C was given all minerals except magnesium ions. State three conditions, other than water and the concentration of mineral ions, that would need to be kept the same for all the plants, in order to make the investigation a fair test
Answers
Answer:
Periods of light-time Temperature Substrate/Soil typeExplanation:
Controlled variable: Variables that are controlled and have no influence on the results of the experiment. These variables do not affect the change in the dependent variable values.
These variables must be the same for all the subjects or groups (control and experimental). In the case of plants, controlled variables are probably those needed by the plants to correct development.
All plants should be exposed to the same period of light-time and the same temperature. Also, the substrate or soil where the plants are growing should be the same.
why does animal viruses affect only animal but not to the plants?
Answers
bacteria that can live in your stomach are select one: a. alkaliphiles. b. psychrophiles. c. acidophiles. d. thermophiles.
Answers
Bacteria that can live in your stomach are acidophiles.
C is the correct answer.
Microorganisms known as acidophiles thrive in extremely acidic habitats. These come in two varieties. Extreme acidophiles live in habitats with pH values below 3, while moderate acidophiles thrive in environments with pH values between 3 and 5.
Examples of acidophiles include the bacterial species Thiobacillus acidophilus, the eukaryotic species Vorticella, and the organisms Crenarchaeota. (a type of archaea).
They are used in the bioremediation procedure used on locations with acid mine drainage. They are helpful in biomining as well.
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I really need help on this, the best one I’ll give the brainlyest answer to.
1. The cell cycle includes the following steps ____, ______, and ____
2. Mitosis includes these
steps in the following order: ______, ________ and ______
3. Why can't a cell grow forever?
4. In cells the ______ ______ increases four times faster than the _______.
5. Label the chromosome in the picture shown
Answers
Answer:
prophase anaphase teraphase
HELP ME CAN SOMEONE DO THIS FOR ME THANKS
Answers
Answer:
some of them may be wrong sorry :(
Explanation:
1. = m
2.= j
3.= e
4.= d
5.= a
6.= k
7.= n
8.= b
9.= i
10.= g
11.= h
12.= l
13.= f
14.= c
How is an RNA molecule different from a DNA molecule?
RNA is single stranded and composed of nitrogenous bases, a phosphate group, and a pentose sugar.
RNA is single stranded and composed of nitrogenous bases, a phosphate group, and a tetrose sugar.
RNA is a double-stranded helix and composed of nitrogenous bases, a fatty acid, and a pentose sugar.
RNA is single stranded and composed of nitrogenous bases, an amino acid, and a hexose sugar.
Answers
Answer:
RNA is single-stranded and composed of nitrogenous bases, a phosphate group, and pentose sugar.
Explanation:
RNA is different from DNA because instead of having two matching bases; it is only made of one strand of nitrogenous bases. These bases are attached to the phosphate, which holds the whole strand of RNA together. The sugar acts as a carrier for the bases. The sugar in RNA is known as ribose and contains 5 carbon molecules. This is why it is called pentose sugar.
Nancy is explaining why chlorophyll is classified as a plant pigment and
how it is useful in photosynthesis. Which property of chlorophyll would be most
appropriate for her to cite?
chlorophyll’s green color
chlorophyll’s presence in chloroplasts
chlorophyll’s ability to absorb light
chlorophyll’s reactivity with oxygen
Answers
Answer:I think it's A let me know if am wrong
Explanation:
Answer:
I think its chlorophyll’s ability to absorb light
Explanation:
Can someone help me explain why this is incorrect
Answers
Answer:
to many valence electrons
Explanation:
i think It's wrong because helium only has two valence electrons therefore there should only be two dots to represent that
Which molecule will undergo only london dispersion forces when interacting with other molecules of the same kind?.
Answers
Butane, C₄H₁₀ will undergo only London dispersion forces when interacting with other molecules of the same kind.
London dispersion force:
The weakest intermolecular force is called the London dispersion force.When the electrons in two nearby atoms occupy positions that cause the atoms to temporarily form dipoles, the resulting transient attractive attraction is known as the London dispersion force. There are instances when this force is referred to as an induced dipole-induced dipole attraction.Butane molecules only exhibit London dispersion forces because they are non-polar and have a symmetrical distribution of electron density.
Butane:
It is a covalent non-polar molecule. Every C-C and C-H bond is non-polar. This is because there is little or no electronegativity difference between C and C in C-C bonds and none between C and H in C-H bonds.Learn more about the London dispersion force here,
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If a planet is too far from the sun, why would it not be supportive for life?
Answers
Answer:
No one will live in that planet also some planets dont need heat
Lack of LCAT reduces the LPS-neutralizing capacity of HDL and enhances LPS-induced inflammation in mice
Answers
HDL has vital immunomodulatory properties, which includes the attenuation of lipopolysaccharide (LPS)-precipitated inflammatory reaction.
As lecithin-ldl cholesterol acyltransferase (LCAT) is a important enzyme withinside the maturation of HDL we investigated whether or not LCAT-deficient (Lcat(-/-)) mice gift an improved LPS-precipitated inflammatory reaction. LPS (100μg/kg frame weight)-precipitated cytokine reaction in Lcat(-/-) mice become markedly improved and extended as compared to wild-kind mice. Importantly, reintroducing LCAT expression the usage of adenovirus-mediated gene switch reverted their phenotype to that of wild-kind mice. Ex vivo stimulation of complete blood with LPS (1-100ng/mL) confirmed a comparable improved pro-inflammatory phenotype. Further characterization in RAW 264.7 macrophages in vitro confirmed that serum and HDL, however now no longer chylomicrons, VLDL or the lipid-unfastened protein fraction of Lcat(-/-) mice, had a discounted ability to minimize the LPS-precipitated TNFα reaction.Learn more about HDL:
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When these animals are born or hatched, they look and develop very differently from one another. However, their embryos and skeletons show that they have many similarities. Construct an explanation for the similarities among a mammal, a bird, and a reptile. Include evidence in support of your explanation.
Answers
Mammals, birds, and reptiles are all vertebrates, meaning they have a backbone. As such, their embryos and skeletons show similarities in their basic body plan, with the same types of bones and organs in similar positions.
What is vertebrates?Vertebrates are a subphylum of animals that possess a backbone or spinal column. They are characterized by the presence of a notochord, which develops into the spinal column, and a dorsal nerve cord. Vertebrates include fish, amphibians, reptiles, birds, and mammals, and they are some of the most diverse and complex animals on the planet. They exhibit a wide range of adaptations that allow them to thrive in various environments, from the deep sea to the highest mountains.
Here,
For example, all three groups have a similar pattern of limb bones - a single bone in the upper arm or thigh, two bones in the forearm or lower leg, and multiple small bones in the hand or foot. They also have similar structures for the heart, lungs, and other internal organs. These similarities suggest that all three groups of animals evolved from a common ancestor with this basic body plan. Over time, each group evolved unique adaptations that allowed them to thrive in different environments and ecological niches. Mammals, for example, evolved hair, mammary glands, and the ability to regulate their body temperature internally. Birds evolved feathers, lightweight bones, and a highly efficient respiratory system that allows them to fly. Reptiles evolved tough, scaly skin, and adaptations for conserving water in dry environments. Despite these differences, mammals, birds, and reptiles share many basic biological processes, such as DNA replication, protein synthesis, and cell division. This further supports the idea that they share a common ancestry and have similar genetic blueprints that have been modified over time by evolution.
In summary, the similarities among mammals, birds, and reptiles suggest that they all descended from a common ancestor with a basic body plan that included a backbone and certain internal organs and structures.
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Been stuck on this overnight while studying can someone help me please?
Answers
coronaExplanation:
ur welcome
Answer:
b
Explanation:
In medels experiment, why did wrinkled seed shown up in the F2 generation, even though they were not present in the F1 generation
Answers
In broad terms, the sunspot cycle tracks the:
A. movement of sunspots.
B. size of the sunspots.
C. overall color of sunspots.
D. changing number of sunspots.
Answers
In broad terms, the sunspot cycle tracks the D. changing number of sunspots.
What is the sunspot cycle?Also known as the sunspot cycle. An 11-yr cycle throughout which the variety of sunspots rises to a most or falls to a minimum. The periodic alternate withinside the variety of sunspots; the cycle is taken because the c programming language among successive minima and is ready 11.1 years.
The sun cycle, additionally called the sun magnetic interest cycle, sunspot cycle, or Schwabe cycle, is an almost periodic 11-yr alternate withinside the Sun's interest measured in phrases of versions withinside the variety of located sunspots at the sun surface.
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Why don’t populations of organisms that reproduce asexually have the same genetic variation as populations that reproduce sexually
Answers
Answer:
Asexual reproducing populations only get their genetics from a single parent, meaning that they all have the exact same DNA/RNA, while sexually reproducing populations have two parents meaning they get genetic code from two parents instead of one, therefore they have more variance. This variance is also the reason sexually reproducing populations are usually harder to wipe out due to variance.
Explain why streets and highways have speed limits rather than
velocity limits. Because
Answers
Answer:
Velocity is a vector, it has magnitude and direction. They have speed limits rather than velocity because in whatever direction you go, you should have limited speed.
f. Which trees grow in coastal regions?
Coniferous or
Oak or Deciduous