Answer: 2. the production of new body cells to replace old cells
<span>Mitosis is a form of cell division that results in two daughter cells that are identical (genetically) to each other and to its original cell. It plays a vital role in the life cycle of most living things. </span>
<span>In single-celled (unicellular) organisms such as bacteria, mitosis is a type of asexual reproduction, making identical copies of a single cell.</span>
<span>In multicellular organisms, mitosis produces new cells to replace old cells and promote growth and repair. </span>
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C14 radio isotope decays into Nitrogen
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Answer:
The estimated five-year survival rate for patients whose melanoma is detected early is about 99 percent. The survival rate falls to 65 percent when the disease reaches the lymph nodes and 25 percent when the disease metastasizes to distant organs.
Explanation:
Deforestation affects entire ecosystems, including the organisms that live in them.
In <em>rainforests</em>, deforestation has devastating effects. Wildlife diversity, for instance, tends to decrease as species are displaced from their natural habitats. Animals go to new places in search of shelter and food. In many cases, they die of hunger or are threatened with extinction due to the spread of diseases.
Deforestation also affects rivers, different streams of water and the soil. The soil, which provides essential nutrients for vegetation, is exposed to more sunlight and heavy rainfalls that erode it. Erosion makes the soil drier and infertile.
