The answer is D. A species diversity
<span>The primary hypothesis is that they were led to extinction by hunting by humans.
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Answer:
Timeline. In a temperate climate, it usually requires three weeks to several years for a body to completely decompose into a skeleton, depending on factors such as temperature, humidity, presence of insects, and submergence in a substrate such as water.
Explanation:
Cytotoxic T cells use two basic mechanisms to destroy target cells: 1. Cytotoxic T cells release perforins which create pores on the target cells and granzymes which stimulate the apostosis of the target cells by exocytosis. 2. Cytotoxic T cells bind specific membrane receptors on the target cells and stimulate apostosis process which eliminate the target cells.
