The correct answer is option C
Reason:
The Earth's magnetosphere is the outer space in the space which it occupies and thus its existence over pole is a wrong statement
Myelin can greatly increase the speed of electrical impulses in neurons because it insulates the axon and assembles voltage-gated sodium channel clusters at discrete nodes along its length.so the signal speed might slow down as it got halved
Myelin is the insulating layer, or sheath that forms around the nerves, including those in the brain and in the spinal cord. It is made up of some protein and fatty substances. This myelin sheath is allows electrical impulses to the transmit quickly and efficiently along with the nerve cells. If the myelin is damaged, these impulses slow down.
Myelin is repaired or replaced by the special cells in the brain called as oligodendrocytes. These cells are made from special type of stem cell that found in the brain, called as oligodendrocyte precursor cells (OPCs).
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Every cell has a cytoplasm
Answer:
$220
Explanation:
For Mowing:
Revenue: $1,200
Additional cost: $(100)
Transportation cost : $(50)
Net Income : $1050
For Painting:
Revenue: $1,400
Additional cost: $(80)
Transportation cost : $(50)
Net Income : $1270
Incremental Net income = $1270 - $1050
= $220
Answer: The question is incomplete.
The options are not given but the correct answer is;
They can protect the body from infection.
Explanation:
Microorganisms are microscopic organisms that are found in every environment. They include bacteria, fungi, viruses e.t.c.
The can be single celled or form colony.
Microbes are of utmost important in larger animals in that they form symbiotic relationship with them. Microbes live in or on organisms.
Microbes help in digestion of food in intestinal gut and also help prevent infections due to their activities in or on the larger animals. Their secretions help to prevent Invaders. They benefit by having shelter and nutrients they feed on from their host.