<h2>Answer:</h2>
<u>The pituitary gland is called the master gland of the human body. </u>
<h2>Explanation:</h2>
The pituitary gland is called the master gland of the endocrine system present in the human body because this gland controls all the functions of many endocrine glands. The pituitary gland is no bigger than a pea, and is located at the base of the brain which hangs by a thin stalk from the hypothalamus.
it is entirely normal for one testicle to be bigger than the other. Many people find that the right testicle is slightly larger and the left hangs lower. A difference in size is usually nothing to worry about, though it can occasionally indicate a problem.
This is perfectly normal and nothing to worry about. Either side may be slightly larger or hang lower. But be sure to tell a parent (who will let your doctor know) if you have any pain, swelling, or lumps in your testicles.
When a vein in a testicle becomes enlarged, it's called a varicocele. Varicoceles affect up to 15 percent of males. Like varicose veins in your legs, varicoceles may appear bulgy under the skin of your scrotum. They tend to form in the left testicle because the vein on the left side hangs lower.
Answer:
<u>A focal infection</u> is a small region of infection, from where the pathogen can move to other areas of the body to cause a secondary infection.
Explanation:
The focal infection theory is a theory that states that many chronic diseases (such as cancer, arthritis, mental illness) are caused by a focal infection. A focal infection is a small region of infection or a localized infected region, which can lead to a secondary infection at a site, which is susceptible to infections. Examples of such focal regions are nasal sinuses, kidney, gall bladder, liver, etc.
<u>Therefore,</u><u> a focal infection </u><u>can be defined as a small region of infection, from where the pathogen can move to other areas of the body to cause a secondary infection</u>.
Answer:
D
Explanation:
To copy original DNA strands into complementary strands
Microhabitats are a small scaled environment with all biotic and abiotic factors needed to support its limited variety of organisms in an area.