Question

1. which statement accurately describes the impact of artificial selection? a. it has no significant effect on the genetic diversity of species b. it can produce rapid and extreme changes in traits within populations c. it leads to random changes in traits across populations d. it operates solely based on environmental pressures 11. why are conservation efforts considered urgent? a. they are only needed for popular species b. they help prevent extinction and maintain biodiversity c. they are unnecessary d. they complicate human activities 12. what is the primary purpose of adaptations in organisms? a. to eliminate environmental pressures b. to enhance survival and reproduction c. to create new species rapidly d. to increase competition among species

Explanation:

• For question 10: Artificial selection is when humans choose which organisms reproduce, leading to rapid and extreme trait - changes in populations. It is not random and not solely based on environmental pressures, and it can reduce genetic diversity.
• For question 11: Conservation efforts are urgent because they help prevent species from going extinct and maintain the variety of life (biodiversity), not just for popular species, and they are necessary, not complicating human activities in a negative way.
• For question 12: Adaptations in organisms evolve to enhance the ability to survive and reproduce in their environment, not to eliminate environmental pressures, create new species rapidly, or increase competition as a primary purpose.

Answer:

1. B. It can produce rapid and extreme changes in traits within populations
2. B. They help prevent extinction and maintain biodiversity
3. B. To enhance survival and reproduction