Skeletal muscles are involved in: A)Propulsion of a substance through a body tube
B)Beating the heart
C)Heat Production
D)Movement of skin

Explain the importance of producers, primary consumers, secondary consumers and decomposers in an ecosystem.

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight.which of these is the most likely effect on the ecosystem? a-an increase in biodiversity. b-an increase in immigration to the area. c-a decrease in available water. d-a decrease in plant growth.

Monitor and apply fix up strategies