Which organisms in an ecosystem are most likely to be affected by bioaccumulations of toxins? Explain.

This is biomagnification, and it means that higher-level predators-fish, birds, and marine mammals-build up greater and more dangerous amounts of toxic materials than animals lower on the food chain. In this activity you will explore the biomaginification of toxic chemical, mercury, through a simple marine food chain.

Explanation:

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?