Answer:
Binding the rna polymerase to the promoter sequence
The answer is A. The sulfur-filled fluid that comes from the vents is lethal to some animals.
Deep-sea vents are hydrothermal vents at the bottom of the oceans. The mineral water that comes from them is rich in sulfide and methane and can be lethal to the most of animals. However, some bacteria are able to survive in such conditions thanks to the process of chemosynthesis. Chemosynthesis is a process in which some bacteria produce sugar, similarly to photosynthetic process. But, while in photosynthesis the energy of Sunlight is used to convert carbon dioxide and water into sugar and oxygen, in chemosynthesis, carbon dioxide, oxygen, and hydrogen sulfide are used to produce sugar, along to water and sulfur. This process is preferable when there is no light and the environment is rich in sulfide or methane, such in deep sea vents.
Mitosis can only happen with cytokinesis. Mitosis is the process in which a cell goes through to produce two new cell nuclei. Cytokinesis is when the cytoplasm splits. Without cytokinesis, mitosis would still happen but it would create 2 nuclei in one cell. And if cytokinesis happened and mitosis did not then the cell would most likely not survive.
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Answer:
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Explanation:
Answer:
It should be noted the options for the question are not complete. But the answer is,
As capillaries become engorged, the upper respiratory tract is affected by the subsequent edema and hyperemia, which causes these conditions, seen commonly during pregnancy.
Explanation:
Nasal congestion is a situation where the nasal passage become blocked. This is due to the swollen of the tiny blood vessel lining the nose. This is because the blood vessels have been inflamed.
There are many methods which can be adopted to relieve it.Some of them are
* Drinking lots of fluid
* Breathe in steam from a container with warm water
* using vaporizer
* Avoiding chlorinated pools.
Epistaxis is known to be bleeding from the nose. This can be caused by been exposed to dry air, which can cause the damage of the tiny blood vessels.
One of the methods that can be use as treatment is cauterization. This is the use of chemical swabs to cautirize the nose , and this eventually seals the damaged blood vessels.
This is an emergency situation in a pregnant woman because, it may may reduce the amount of oxygen required by the unborn baby.