Answer:
The correct answer will be option- D.
Explanation:
The somatic nervous system is divided into two divisions: the afferent neurons (sensory) which bring signals to the CNS and the efferent neurons (motor) which brings the signals to the muscle at the neuromuscular junction.
The motor neurons bring the signals in the form of the action potential which is sent to the muscle through motor wend plate which triggers a response in the muscle cells in response to the stimuli.
Thus, option- D is the correct answer.
Explanation:
Cancer occurs in dividing cells only because genetic materials divide into two equal portions during division. This process may be interrupted by carcinogenes or mutagenes to make mutate cells and then render them as cancer cells. In the brain, the cells are differentiated and there is no chance to start division, then how can cancer be found in the brain.
Precipitation is the primary source of water stored in an aquifer. the correct option in regards to the given question is the first option.
An aquifer is actually an underground layer of water that
contains permeable rocks, gravel, sand etc. the water can be brought to the
surface by making a water well. Hydrogeology is the study of aquifers and the
way of water flow in the aquifers. The depth of the aquifers differs from area
to area and the aquifers that are closest to the surface are used for drinking
and irrigation purposes.
Answer:
maternal mtDNA
Explanation:
While nothing but the haploid nucleus remains of the sperm during fertilisation, the ovum still has its mitochondria and other organelles. Mitochondria are capable of division and will divide according to cell's needs.
So it is the maternal mtDNa that gets passed on. Spontaneous mutations can happen at any point ofcourse and get passed on in the same way.
A pH of 7 is considered neutral
