Which of the following substances must enter the cell through the cell membrane for the cell to live A. Urea
B. Carbon monoxide
C. Nutrients
D. Carbon dioxide

Is a hamster and guinea pig part of the same species ?

What is turgor pressure, what causes it, and what does it do for a plant?

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.