One of a group of external regulatory proteins that stimulates the growth and division of cells is

Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.