List at least two things that scientists and explorers have in common

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

The law of states that traits are passed from parents to offspring independently of one another.. true or false

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