Apoptosis is a process that acts to decrease the number of somatic cells. frees the fingers and toes of the human embryo from their "webbed" structure to independent structures. is programmed cell death. All of the choices are correct.

D. All of the choices are correct.

Explanation:

Apoptosis, also known as programmed cell death, is a mechanism that maintains cellular and bodily integrity by eliminating potentially cancerous, damaged and virus-infected cells. Apoptosis also eliminates cells that undergo irreparable DNA damage.

Apoptosis, unlike necrosis, is the type of cell death that shrinks and packages cellular components into vesicles and transports them outside the cell, to be consumed by immune cells.

Apoptosis is a crucial process in human development. Our hands, that start out as webbed paddles, eventually separate into fingers due to apoptosis.

It occurs in all vertebrate species that have finger- or toe-like digits, and less apoptosis results in more webbing between the digits. Sometimes, if a small mistake happens during finger or toe development, apoptosis may be incomplete, leading to fused toes.

In frog development, apoptosis is responsible for the loss of the tail in tadpoles.

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.

the correct answer is:

a population changes in response to a change in the environment.