Muscles can either be under voluntary control, meaning you can continuously contract or relax them, or be under involuntary control, meaning their contractions happen without you thinking about it.

List two modern organisms that have pentameral symmetry

Compare and contrast cladistics and phylogeny. what are their advantages and disadvantages? which is the most useful in understanding how an organism developed into its current form? which concept most strongly supports your opinion about the origin of any given organism?

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided