Cells are so small because they need a large surface area to volume ratio to allow for efficient exchange of materials into and out of the cell.

There are 20 different amino acids that create all the proteins of all the life on Earth. What component of each amino acid makes it unique from all the other amino acids?

 Evergreens are more advantageous in the tiaga due to the fact that they retain their leaves all year round. In this manner, they are able to photosynthesize immediately when the temperature gets above freezing.

What is the advantage of the the origin of the nucleus according to the leading hypothesis?

Let P = purple flowers and p = white, and T = tall plants and t = short plants. Of the 16 possible gamete combinations in the dihybrid cross (PpTt x PpTt), how many would be the phenotype white, tall?

You are the lucky student of a wacky professor who develops a time machine and he asks if you will test it with him. You get in and there’s an immediate glitch. The read out indicates that  you have traveled back 80 million years ago, and are now stuck in the Mesozoic era.  Which of the following would you most likely see when you step out of your time machine?

Nearly all mushrooms are made up of this group of fungi.

What is the process by which DNA codes for a messenger RNA (mRNA)?

 Evergreens are more advantageous in the tiaga due to the fact that they retain their leaves all year round. In this manner, they are able to photosynthesize immediately when the temperature gets above freezing.

Which evidence supports the endosymbiotic hypothesis for the origin of the mitochondrion?