Which substance do cells need to get energy from food? A. Ammonia
B. Carbon dioxide
C. Vitamin C
D. Oxygen
Please answer serious

Name the type of chemical that speeds up digestion

Which best describes a rhinovirus? o a. a virus that causes a common cold o b. a protective shell around a virus o c. a tube the comes off a virus o d. a piece of dna transferred by a virus

Akrabby blind whale has married pearl who has normal vision. oneof their two sons is also colorblind. what arr the genotypes of the parents?