Two factors that can affect enzymes action are a. time and pH
b. pH and substrate shape
c. pH and temperature
d. temperature and time

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

What is an endocrine function? (apex) a.esophageal glands release mucus into the esophagus b.salivary glands release saliva into mouth c.swear glands release sweat to the skin d.the pineal gland releases melatonin into the bloodstream

Cells destroy body cells infected by a virus or bacteria.