Before they are born, some sharks nourish themselves by devouring their siblings. As a result, they are born with few if any siblings. What do you think the adaptive advantage is of this phenomenon?

Cells destroy body cells infected by a virus or bacteria.

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?

Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?