Which substance is a type of biomolecule that makes up most of a muscle cell?
A. Lipid
B. Protein
C. Carbon dioxide
D. Carbohydrate

What happens when the cell copies its chromosomes

How does natural selection change thephenotypes within a population over time?

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.