What changes seen in boys and girls when they attain sexual maturity.

Sexual Maturity is Puberty so The difference between them is the changes that they experience during puberty

Reaching sexual maturity is reaching puberty. When boys and girls reach puberty they experience lots of changes such as widening hips, larger breasts, and the menstrual cycle for girls and deeper voice, body hair, and more muscles for boys.

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correct answer: biotic and abiotic limitations

carrying capacity is defined as the total number of an organism who can be supported in a given area within the natural resources limit and without harming or degrading the natural, economic or the cultural environment present for the future generations.

carrying capacity is determined by the limiting factors, which are known to affect the natural resources available. it may include water, nutrients, minerals, space, light etc.

explanation:

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the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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