The energetic hypothesis and dynamic stability hypothesis are explanations to account for a) plant defenses against herbivores. b) the length of food chains. c) the evolution of mutualism. d) resource partitioning. e) the competitive exclusion principle.

How do you know that the plant cells in these two images have different jobs, or functions? a. because all plant cells serve different functions b. because they are two different colors c. because their dna are different d. because their structures are different

What are ways that ordinary people can to keep antibiotic resistance from getting worse?

The limbic system structure that regulates hunger is called the