The coding portions of a gene that are joined during mrna processing are called

The general process that leads to the differentiation of cells is called

The muscles of motion or moving body parts are smooth muscles. (true or false)

All organisms on earth require a source of energy to live. ATP is the fuel that powers all the activities of cells on earth. Which statement Best describes how ferns, people and flatworms obtain energy?

What characteristic do the nucleus, the mitochondria, and the vacuoles of animal cells have in common? A. They all create energy while doing their tasks. B. They all contain some of the cell's DNA. C.

The aquifier layer in which all pores are filled with air

Warm fronts usually bring cloudy sky. A. true B. False

What is the reference between relative dating and absolute dating

An amoeba is a unicellular organism, which doesn't have a stomach for digestion of food. How does food storage and digestion take place in an amoeba?

Select all of the answers that apply. What major factors affected earth's changing climates?

How does mimicry influence the behavior of predators?