Excess fluids and proteins in the body are returned to the bloodstream by
a. heart
b. artery
c. the respiratory system
d. the lymphatic system

How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.

What are the three groups of atoms that make up amino acids called

Do plants make food in their stems flowers roots or leaves?