Answer:
The correct option is D) The age-structure diagram would be column-shaped with all age classes approximately equal.
Explanation:
A zero population growth refers to a condition when the birth rate equals to the death rate. Social workers tends to find methods to attain zero population growth as such conditions provide economic stability. As the birth rate and the death rate will be equal hence the age structure diagram of such a population can be seen to be column shaped as they all will be equal.
Answer:
The myelin sheath are the glial cells which present in the neurons. It acts as an insulator for the impulse. Inside the myelin sheath the impulse propagates in high speed. Because there is no depolarization occured in it. Therefore, the nerve impulse jumps from one sheath to other and it is called saltatory movement.
The gap between the two myelin sheath is called nodes of ranvier. It contains sodium ions and have voltage gated channels. When the action potential passes through the myelin sheath, the depolarisation happens due to entry of excess sodium ions into the non - myelinated sheath / nodes of ranvier.
When there is excess sodium ions present in the axon, again repolarization occurs and action potential occurs in the myelin sheath. Myelin sheath contains lipids which enhance the action potential.
Apocrine glands develop in areas abundant in hair follicles, such as on your scalp, armpits and groin. Sweating is your body's mechanism to cool itself. Your nervous system automatically triggers your sweat glands when your body temperature rises.
I pretty sure it’s C. good luck bud
I think it's False...................