The biogeochemical cycles move through biotic and abiotic regions. true or false

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?

Science which of the following is an example of a cyclic behavior that is seasonal? i think the answer is d, i just need to double check : ). a. running from predators. b. searching for water. c. hunting at night. d. migrating for warmth. ***

What is it called when lava when it erupts from the surface through volcanoes.