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1 year ago

What is the signal speed if the thickness of the myelin sheath is halved but no other changes are made to the axon?

1 answer:

6 0

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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How does biodiversity affect ecosystem stability?

aleksklad [387]

Biodiversity completely depends on the ecosystem. The increase in biodiversity also leads to an increase in ecosystem stability.

Further Explanation:

Biodiversity is the term used for describing the variety of species found on earth. It can be animals, plants, microorganisms (bacteria and fungi), etc. the earth is rich in biodiversity; there are so many species that have to be discovered, whereas there are several species that have extinct. The entire living organism forms the ecosystem. It also includes their physical environment and the interpersonal relationship with them.

Species play a crucial role in the ecosystem. So the extinction or loss of particular species affects the perfect balance of the ecosystem. The ecosystem work in a cycle that means plants absorb the energy from the sun and produce food through the process called photosynthesis. The plant produced food is called the primary production, which is utilized by the myriad animals. The rate of primary production completely depends on the global food supply. It also increases the rate of climate change. The plants produce carbon dioxide at night time and remove it in the atmosphere. That decreases the variability of the environment and disturbs its original state.

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Answer Details:

Grade: High School

Subjects: Biology

Topic: Biodiversity

Keywords:

Biodiversity, ecosystem, species, animal, plant, microorganism, environment, extinction, photosynthesis, primary, myriad, global, variability, carbon dioxide.

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