The answer is Active transport
The ecosystem can support fewer foxes than grasshopper
hope this helps
Answer:
because some genes expressed in neuron is not expressed in WBC's.
Explanation:
Every cell in the body contains the same DNA sequence and the same gene but all the genes are not expressed in a cell. Each cell expresses a particular set of genes according to the function they perform.
For example, a red blood cell will express a gene that code for hemoglobin to carry oxygen but white blood cell do not carry oxygen, therefore, it will not express the gene of hemoglobin rather it will express a gene that make proteins that can be used to kill pathogens.
Therefore according to the function of cell genes are expressed so neurons express genes that make neurons receive and respond to electric signal.
Answer:
<em>Astrocytes</em>
Explanation:
In the central nervous system, astrocytes, also collectively known as astroglia, are distinctive star-shaped glial cells.
It is not well known the ratio of astrocytes in the brain.
Research has found that the astrocyte proportion varies by area depending on the counting technique used and varies from 20% to 40% among all glia.
These fulfill many roles, namely <em>biochemical reinforcement of tumor cells that build the blood-brain barrier, nutritional supply to the nervous tissue, extracellular ion balance maintenance, as well as a function in the brain and spinal cord repair and scarring cycle after severe injuries.</em>
