Which of the following blood vessels uses elasticity to push blood further along the bloodstream? a) arteries b) capillaries c) varicose veins d) atrioventricular node

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.

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.