Which of the following is a product of cellular respiration? Carbon dioxide
Oxygen
Carbon monoxide
Nitrogen

2. if scientists identify an animal with bilateral symmetry and no segmentation, which phylum can it definitely not belong to? a. roundworms b. annelids c. mollusks d. flatworms

What does it mean for a cell membrane to be selectively permable

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.