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brilliants [131]
4 years ago
15

Charles Darwin observed a unique beak size and shape in the finch population of each of the Galapagos Islands that he visited. W

hich is the most likely cause of the observed variation?
Biology
1 answer:
Volgvan4 years ago
5 0
In this question, there are no options given to choose from. So i would answer this question based on my knowledge. The most likely cause of the observed variation is adaptation and evolution. The birds of that island adapted to the food source and then they evolved as per the requirement of the place and food source.
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The answer to your question is:

Carbon, Hydrogen and Oxygen

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Which of the following products are in the process of aerobic respiration?
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"Life as we know it is impossible without water." Explain why a scientist might make this statement. Give two examples to suppor
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First research to discover how many genes control "hair color" in dogs and fill in the number below. From your answer, explain h
jenyasd209 [6]

Answer:

Gregor Mendel's studies of heredity established the field of modern genetics. ... As you will learn, Mendel uncovered some of the rules of inheritance that scientists continue to ... Mendel created an F1 generation and observed its traits. ... Answer The allele for red eyes (R) is dominant, so all of the offspring will have red eyes.

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3 years ago
Look at the two images of cells.
BartSMP [9]

Explanation:

A)Image A represents a peptide hormone that interacts with a receptor, and image B represents a steroid hormone that interacts with the cell’s DNA

The endocrine system involves chemical signalling via the secretion of molecules called hormones into extracellular fluid.

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  • Peptide hormones however,are hydrophilic, and thus cannot readily diffuse across the membrane. They remain outside the cell, binding to receptors which then activate secondary messenger signalling and a subsequent cellular response.

Further Explanation:

Hormones bind to chemical receptors in order to cause specific changes in target cells, these lead to changes in the body's internal environment called homeostasis. It includes the thyroid, parathyroid, pituitary, pineal and adrenal glands along with other regions.

The bone, adipose tissue, heart, pancreas and liver are a few of the regions of the body which show endocrine function. The brain, or control center functions to receive and process the information from the receptor. Effectors receive the control center's command and elicits a response in the form of a feedback loop, that may oppose or enhance the stimulus.

Cells in a multicellular organism become specialized for particular tasks and communicate with one another in order to maintain homeostasis. Within the human body these are known as hormone cascades, where several complex steps occur- the tissues signal to one another with the use of hormones released by the endocrine system. The regulation (increase and decrease) of these secretions is achieved by negative feedback loops, where the release of certain substances during a cascade in turn halts the secretion of hormones at earlier stages.

Learn more about homeostasis at brainly.com/question/1601808

#LearnWithBrainly

8 0
3 years ago
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