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:
Igneous rocks and Metamorphic rocks determine the age of the earth.
Answer:
The term Caribbean culture summarises the artistic, musical, literary, culinary, political and social elements that are representative of Caribbean people all over the world.
Explanation:
Much of it is ocean and the Caribbean region includes about 700 islands, islets, reefs, and cays in and surrounding the Caribbean Sea. Across the Caribbean region, there is diverse topography including coral reefs, mountains, tropical forests, low-lying plantations, valleys, waterfalls, and volcanoes.
