C. The Bering Land Bridge once connected what would be Russia and North America but the the movement of these continents separated the land bridge
Answer:
energy pyramid
Explanation:
An energy pyramid is a diagram that compares the energy used by producers, primary consumers, and other trophic levels. In other words, an energy pyramid shows how much energy is available at each trophic level. Energy is lost at each trophic level of a food chain.
Paratism is the practice of living as a parasite in or on another organism. Mutualism is the way two organisms of different species exist in which each individual benefits from the activity of the other.
