Biology, 06.06.2020 02:04 ashleychantal99
Multiple sclerosis (MS) is a disease that affects the nerve cells of the brain and the spinal cord. Some of the
symptoms of MS are chronic pain, pins-and-needles sensations, muscle weakness, and visual disturbances. Study
the image, and then explain the cause for these symptoms.
Healthy Nerve
Nerve Affected
by MS
damaged
myelin
node of
Ranvier
exposed
fiber
nerve fiber
Answers: 3
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Biology, 21.06.2019 23:30
Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.
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Biology, 22.06.2019 03:30
Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle
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Multiple sclerosis (MS) is a disease that affects the nerve cells of the brain and the spinal cord....
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