Which example represents a disadvantage of asexual reproduction?

a)
genetic variety slowly causes hundreds of species of beetles to form from a single species.

b)
a single antibiotic is able to quickly and easily kill millions of genetically identical bacteria.

c)
millions of bacteria are quickly produced by cell division, in one afternoon in a jug of milk that has been left on the counter.
eliminate

d)
male anglerfish must live on larger females as parasitic mates, since they encounter other anglerfish so infrequently in the deep ocean.

The correct answer would be B)  A single antibiotic is able to quickly and easily kill millions of genetically identical bacteria.

Asexual reproduction results in the production of offspring which are identical to each other as well to the parent cell or organism. They are termed as clones.

Lack of genetic diversity makes them prone to the extinction.

As they all have identical genetic material, they become prone to same threats. For example, if one cell or organism is vulnerable to temperature change then the entire population can be extinct due to a similar change in the temperature.

Similarly, if a single antibiotic can kill one bacteria then it can kill the entire population due to their identical genome.

amber has allowed scientists to study dna that has been preserved over millions of years.

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.