Answer:
Is the sporophyte more prominent in mosses or liverworts? Are mosses gametophyte or sporophyte dominant? What is the adaptive significance of the seta of the sporophyte growing well above the mat of the gametophyte ? Better dispersal of spores
Explanation:
Cancer cells can arise in a variety of ways, the most common, however, tends to be genetic mutations.
Genetic mutations can occur during the life of a cell due to outside factors such as:
- The <u>food </u>we eat
- The <u>environment </u>we expose the cell to
- The <u>substances </u>that touch the cell (e.g skin cells)
That being said, the most common time for a genetic mutation to take place is during cellular division. During this time the DNA that encodes the cells is duplicated. Genetic mutations in this DNA sometimes cause the elimination of <u>programmed cell death</u>.
<u>Programmed cell death </u>is what tells a cell when it should stop growing and dividing. This is a <u>regulatory function </u>designed to keep the number of cells at a balance, growing only when needed. As this cell multiplies, this produces an increasing number of cells that will not die. The <u>accumulation </u>of these cells is referred to as cancer.
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E. Glaciers only scratch rocks that are located near the equator
The new cells would have incorrect number of chromesomes
An animal is endothermic if it is able to maintain its temperature through bodily processes.