Question

1. vocabulary in paragraphs 11–12, you read about darwin’s struggle to determine evolution’s mechanism. what does the term mechanism mean? a. the impact of helpful variations in a population b. how offspring show a variety of new traits c. the natural process by which something takes place d. how species adapt to new conditions 7. in paragraph 13, you read about three factors that affect the process of natural selection. what are they? a. overpopulation, variation, and competition b. overproduction, overpopulation, and competition c. competition, variation, and survival d. overproduction, variation, and competition

Explanation:

Question 6

To determine the meaning of "mechanism" in Darwin's struggle for evolution, we analyze the options. Darwin's theory of natural selection involves the process (mechanism) by which evolution occurs. Option C defines a mechanism as a natural process of something happening, which aligns with how evolution's mechanism (natural selection process) works. Option A is about impact, B about offspring traits, D about adaptation, none match "mechanism" as a process.

The three factors affecting natural selection are overproduction (more offspring than can survive), variation (differences in traits), and competition (for resources). Option D lists overproduction, variation, and competition, which are the correct factors (overproduction leads to competition, variation provides traits for selection). Option A has overpopulation (incorrect, it's overproduction), B repeats overproduction and overpopulation (wrong), C has survival instead of competition (survival is the result, not a factor).

Answer:

C. the natural process by which something takes place

Question 7