Aquatic biomes can be distinguished by chemical characteristics such as dissolved oxygen content and salinity and by physical characteristics such as water flow.
which five of the following statements about aquatic biomes are true?

a. tropical coral reefs generally exist in relatively shallow areas of the ocean.
b. the lowest levels of dissolved oxygen in a stream are generally found in its turbulent headwaters.
c. wetlands have slow water movement or no water movement and no turnover.
d. estuaries are very productive and are used as breeding grounds by many species of fish.
e. all wetlands have soil that dry out periodically.
f. a freshwater organism permanently attached to the substrate would be unlikely to survive and reproduce in an estuary.
g. temperature drives water movement in some lakes.

Recently, crops of vegetables such as lettuce and green onions have been contaminated, while they are still on the farm, with bacteria that cause food poisoning. how will science influence the way the government responds to prevent an increase in food-borne diseases? because science has shown that lettuce and green onions are not nutritionally valuable, the government may pass laws that ban the sale of lettuce and green onions. because science has shown that there is no way to prevent bacterial contamination, the government may pass laws that punish businesses that buy lettuce and green onions. because science has shown that the washing of hands prevent the spread of infectious diseases among people, the government may pass laws that require hand washing by everyone who handles food. because science has shown there are ways to find the source of the contamination, the government may pass laws that require farm practices that reduce the contamination of lettuce and green onions.