How do coral reefs grow? A) Coral reefs grow from the melted rock that flows from underwater volcanoes.
B) Coral reefs are comprised solely of limestone deposits.
C) Coral reefs grow similar to a plant.
D) Coral reefs grow upward an accumulation of calcium containing exoskeletons of past generations of coral animals.

Which process is represented a.) deletion b.) nondisjunction c.) translocation d.) insertion

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?

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