<span>What MUST occur before mitosis and meiosis can occur is B) DNA replication. DNA replication is a process of copying DNA into an identical copy. Before mitosis, the genetic material of the mother cell must duplicate so that each daughter cell have the same amount as the mother cell. On the other hand, meiosis is a reductive division. But meiosis II is similar to mitosis, so DNA replication is also necessary.</span>
<u>Answer:</u>
<em>D. It is the female part of the plant and contains the ovules, which house the main egg.
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<u>Explanation:</u>
Pistil is the part of female reproductive system of the plants. Stigma, style and ovary together constitute a pistil. Ovary is the swollen base of the pistil that contains eggs or ovules to which the nuclei of the pollen grain fuse and form seed.
Stigma is the outer most part that captures the pollen grains and transfers it to the ovary through the style. Style is the elongated part that connects the stigma and the ovary.
The clotting mechanism, chemicals released from damaged tissues trigger the cascade of events that ultimately result in the formation of hemostasis.
Hemostasis is reached by a series of actions known as the coagulation pathway or clotting mechanism. The complex system enables quick healing and stops uncontrolled bleeding. Fibrin activation is the result of the convergence at a certain site of two routes, intrinsic and extrinsic, which start off independently. The end goal is to use a fibrin mesh to stabilise the platelet plug.
The coagulation pathway's job is to maintain hemostasis, which is the cessation of bleeding or haemorrhaging. Primary hemostasis is the formation of a plug of platelets at the injured region where exposed endothelial cells are present.
To Learn more about hemostasis, refer here:
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You know this! Let me walk you through! First, define a trophic level.
Answer:
A. up to nine times the mass of the sun. 100%
Explanation:
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