Which of the following is part of the cell theory?
cells are able to make new organisms.
all cells are produced from other cells.
all cells are the same.
cells are independent structures.

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.

Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?

In which state was more than 100 billion tons of coal mined in 2005?