Answer:
Astrocytes.
Explanation:
Astrocytes are the star shaped cells that are present in the brain and spinal cord. The exact constitution of astrocytes in the brain is not known and almost 20% to 40% astrocytes are present in brain.
The astrocytes acts as the blood brain barrier and involved in the process of brain scarring. Astrocytes also regulate ions concentration by propagating the calcium ion channels in response to the stimulus. Astrocytes also generate a response by the calcium dependent release of glutamate.
Thus, the correct answer is option (B).
Answer:
Transpiration is loss of water from the surface of leaves in the form of water vapour while guttation is exudation of water from the surface of leaves in the form of drops. Transpiration takes place through stomata while guttation takes place through hydathodes.
Guttation usually occurs at the margins and the tips of the leaves. Transpiration occurs throughout the general surface of the leaves and the young stems.
Explanation:
It’s natural LOL , it can’t be man - made . It depends where you live it though .
They probably chose this over black since black absorbs he most heat, and if something like a power outage occurs during the hot summer, ya want to stay as cool as possible...this is just my idea.
<span> part of the human brain seems to be the most distinct from the brains of nonhuman animals is </span><span>a. hypothalamus
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