Why do many different types of proteins exist even though there are a limited number of amino acids

Which of the following describes research that would be considered basic science?

How does underground water cause erosion and deposition?

What is the role of an autotrophy in an ecosystem?

1. A stem cell in an animal divides by mitosis. Which statement is true about the two daughter cells? A. They each have identical functions. B. They each have the same DNA sequences. C. They are the same size and shape as their paren cell. D.

Helen is an 80 year old woman with stiff and painful joints caused by loss of articular cartilage from normal wear and tear. She suffers from:

The reactants of cellular respiration are carbon dioxide. glucose. oxygen. water.

Which of the five kingdoms in Whittaker's phylogenetic tree are prokaryotic, and which are eukaryotic?

Are there multiple types of bacterial colonies in anna's sample? yes or no. explain your reasoning.

8. What might happen if you didn't run a fever when you got sick?

A cell begins to send out incorrect chemical signals to neighboring cells. During which phase of the cell cycle did the cause of the change most likely happen? G1 phase G2 phase M phase S phase