Item: if a piece of lab equipment is not working properly you should

stop the experiment and tell your science teacher.
try to fix it with the of your lab partner.
try to keep on working to finish the lab.
move to another lab table.

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water

What tool do geneticists use to predict the outcome of genetic crosses? a.karyotype b.punnett square c.centrifuge

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