When skeletal muscle cells undergo anaerobic respiration, they become fatigued and painful. this is now known to be caused by
a) buildup of pyruvate.
b) buildup of lactate.
c) increase in sodium ions.
d) increase in potassium ions.
e) increase in ethanol.

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots

Nucleic acids offer variability because they contain alternate forms of genes called .

Adescription of a type of bio biotechnology (genetic engineering, cloning, or artificial section) one benefit or one risk for the individual (based on whether you are for or against it) one benefit or one risk for society (based on whether you are for or against it) one benefit or one risk for the environment (based on whether you are for or against it)