Answer:
one motor neuron
Explanation:
Although a single motor neuron can innervate several muscle fibers, each muscle fiber is innervated by only one motor neuron
Groundwater supplies drinking water for 51% of the total U.S. population and 99% of the rural population. Groundwater helps grow our food 64% of groundwater is used for irrigation to grow crops. Groundwater is an important component in many industrial processes.
Answer:
There are different function performed by carbohydrates in the body like-
Storage: When there is excess glucose present in the body they are stored as glycogen in muscles and liver.
Providing energy: Carbohydrates are the primary source of energy for the cells present in our body.
Carbohydrate helps to spare proteins and lipids and helps in providing polysaccharides for membrane carbohydrates.
The body maintains blood glucose levels through hormones. For example, when the blood glucose level gets high insulin is released in the blood by the pancreas which reduces the blood glucose level by accumulating glucose as glycogen in the liver and muscle.
Glucagon works opposite to insulin and increases the blood glucose level.
Ok here we go:
Science starts with observing which leads to hypothesis, which is tested by experiments.
The other two i am not sure of. Hope i was a help to you. One thing you can do to figure out the other two is google: "what type of science includes medicine and envirnmental science", and do the same for the other one.