Two different species of mosquito have different body structures. both of these species have dna that tell their bodies how to grow. how can dna produce two very different species?
a. different organisms have dna with different nucleotide bases.
b. different organisms have dna that is a different total length.
c. different organisms have dna with nucleotide bases in a different order.
d. different organisms have dna that is made of different types of acids.

Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are an echinoderm species which uses anchoring structures called holdfasts to attach themselves to the sea floor. crinoids were most abundant in pennsylvania during the mississippian period, which ranged from 375 to 320 million years ago. fossils of the crinoids shows that during most of this time pennsylvania was that provided favorable conditions for crinoid growth. a) glacial terrain b) a dry and sandy plain c) mostly mountain ranges d) covered by warm, shallow seas