Ahuman skin cell contains 46 chromosomes. how many chromosomes are present in a human egg cell? a 23 b 46 c 92 d 138

The correct answer would be A 23.

It is because human egg is a female gamete which is formed by meiotic division.

A meiotic division is reduction division which reduces the number of chromosomes to half in daughter cells or gametes.

Thus, if a skin cell or somatic cell contains 46 chromosomes then the egg or sperm (gametes) would contain only 23 chromosomes.

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.