This is called Subsistence Hunting
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.
Answer:
Here's a quick explanation
Explanation:
Oceanic crust is found under the oceans, (hence "ocean"ic) and are made of multiple layers on oceanic ridges.
Continental crust is found on the outer layer of the crust and makes up the earth's surfaces and continents.
