What type of organism is Antarctic krill?

What type of organism is Antarctic krill?

Answer: Euphausiid

Some coral colonies remove calcium carbonate from seawater and deposit it as limestone in the reef. What is the range of yearly accumulation of limestone in a typical square mile of a reef?

Some coral colonies remove calcium carbonate from seawater and deposit it as limestone in the reef. What is the range of yearly accumulation of limestone in a typical square mile of a reef?

Answer: 100,00 to 500,000 tons

Which organism reproduces by shedding gametes into the sea, then depending upon thee chance union of egg and sperm?

Which organism reproduces by shedding gametes into the sea, then depending upon thee chance union of egg and sperm?

Answer: Purple sea urchin

What is the carbon source for marine autotrophic organisms?

What is the carbon source for marine autotrophic organisms?

W)inorganic carbon
X) phytoplankton
Y) dissolve organic carbon
Z) particulate organic carbon


Answer: W) Inorganic carbon