Quick
which of the following statements best explains the role of meiosis in reproduction? select one:
a. meiosis makes it possible for a zygote to have the correct number of chromosomes. b. meiosis increases the chances of fertilization because it produces four daughter cells. c. meiosis results in offspring with genotypes that are not exact copies of the parents. d. meiosis allows chromosomes to exchange genetic material through crossing over.

The response is the basis for vaccination. primary secondary tertiary none of the above

Which organelle stores most of a cell’s dna?

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