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.

According to the image, the myelin sheath in a person with multiple sclerosis wears away. This damage hampers the ability of the nerve cells to transmit impulses as fast as they can. This inability results in symptoms such as visual disturbances. It also causes chronic, dull pain. These symptoms wouldn’t exist if the myelin sheath were intact. (this is the sample answer they gave me)

Explanation:

haploid cells;

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.