Which system provides structure and support for the body? a. digestive system b. endocrine system c. muscular system d. skeletal system

What word is used to describe differences of individual organisms

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.

What is responsible for the uneven heating between the poles and the equator on any given day