Las vacuolas contráctiles se encuentran en protozoarios ciliados marinos y de agua dulce, esponjas. Estos se llenan de un fluido claro hasta cierto volumen y luego es expulsado al interior de la celula.

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

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.

Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.