A population of zooplankton is exposed to a small number of predatory fish that feed on the larger-sized (adult) zooplankton. Which of the following predictions would most likely occur based on the principles of natural selection?

A. Adult zooplankton will start to reach sexual maturity when they are still relatively small.
B. The predatory fish will evolve smaller mouths so that they do not drive their prey to extinction.
C. The zooplankton will become sexually mature at larger sizes.
D. The predatory fish will evolve poor eyesight so as to preserve their food supply.
E. The first and the third listed responses are both good predictions.

A. Adult zooplankton will start to reach sexual maturity when they are still relatively small.

Explanation: Zooplankton are sometimes heterotrophs or denitrifying organisms they range from microscopic organisms to large species. Examples include jellyfish,amphipods etc Zooplankton are known to be plankton (drifters) within large bodies of water like the SEA(SALT WATER) and RIVERS(FRESH WATER) by moderate water currents.Adult zooplankton are known to start to reach sexual maturity when they are still relatively small or sometimes during their plankton stage.

endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.