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Bio 201 Final Exam AZ College Questions and Answers Graded A+
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Bio 201 Final Exam AZ College Questions and Answers Graded A+ What unique feature do stem cells possess that differentiates them from specialized cells? Stem cells have the ability to differentiate into various cell types and self-renew, allowing them to contribute to growth, repair, and deve...

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  • October 24, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
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  • bio 201 final exam az college questions and answer

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Bio 201 Final Exam AZ College
Questions and Answers Graded A+
What unique feature do stem cells possess that differentiates them from specialized cells?


✔✔Stem cells have the ability to differentiate into various cell types and self-renew, allowing

them to contribute to growth, repair, and development in organisms.




How does the structure of DNA facilitate its function in heredity?


✔✔The double-helix structure of DNA allows for the precise pairing of nitrogenous bases,

enabling accurate replication and transmission of genetic information during cell division.




What role do neurotransmitters play in communication within the nervous system?


✔✔Neurotransmitters are chemical messengers released by neurons that transmit signals across

synapses to influence the activity of other neurons or muscles, facilitating rapid communication

in the body.




How do the various organ systems work together to maintain homeostasis?


✔✔Organ systems, such as the circulatory, respiratory, and endocrine systems, interact to

regulate body temperature, pH, and nutrient levels, ensuring a stable internal environment for

optimal function.

1

, What is the significance of the Hardy-Weinberg principle in population genetics?


✔✔The Hardy-Weinberg principle provides a framework for understanding how allele

frequencies remain constant in a population over time, helping to identify factors that cause

evolutionary change.




How do adaptations enhance the survival of organisms in their environments?


✔✔Adaptations are traits that improve an organism’s ability to survive and reproduce in its

specific environment, such as camouflage for predators or thick fur for insulation in cold

climates.




What is the function of the endoplasmic reticulum in cellular activities?


✔✔The endoplasmic reticulum (ER) serves as a site for protein and lipid synthesis, with rough

ER studded with ribosomes for protein production and smooth ER involved in lipid metabolism.




How do autotrophs and heterotrophs differ in their energy acquisition?


✔✔Autotrophs produce their own energy through photosynthesis or chemosynthesis, while

heterotrophs obtain energy by consuming organic matter from other organisms.




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