The mucus-secreting cells prevalent in simple columnar epithelium are known as
a) goblet cells
b) cup cells
c) chalice cells
d) mucocells

What kind of seafood would you expect to have the highest levels of mercury and why? kelp, because they use the sun to photosynthesize on the bottom trophic level. oysters, because they filter feed on plankton on a lower trophic level. small fish, because they eat plankton on a higher trophic level. sharks, because they feed on organisms on a higher trophic level.

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

How many major plates cover the earth