1.What weakens coral exoskeletons? Excess salt

Excess CO2

Excess sunlight

Excess fishes

2.A quarter of marine life lives in which type of ecosystem?

fish

zooxanthellae

coral reef

ocean

3.What do corals provide for zooxanthellae?

food

sunlight

a source of oxygen

a protective area

The procces of farming organism from the sea is ?

Consider the classification levels of a human. eukarya ,animalia ,chordata ,mammalia ,primates, hominidae ,homo ,sapiens .which is the most specific taxonomic level in the classification system above? a sapiens b homo c hominidae d primates

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.