Answer: C
Explanation: Cells reproduce and divide through a process called mitosis
When a virus attacks a cell, it kills the cell and the virus multiplies to spread throughout the body
Answer:
Coevolution
Explanation:
Ehrlich and Raven observed butterfly species and their host plants. Plant species had adopted a series of defence mechanisms against butterflies. In response the butterflies also evolved new traits to avoid these defence mechanisms.
In this way both butterflies and plants influenced each other's traits and they co evolved. The coevolution can lead to accumulation of lot of different characteristics which can lead to formation of new species and species diversification. Formation of new species will be observed both in plants and butterflies.
CO2 used during photosynthesis first must pass through stomata into internal spaces within the leaf. It then diffuses into mesophyll cells where it becomes available for photosynthesis. When the stomata close, CO2 levels drop rapidly within the leaf, inhibiting the light-independent reactions.
