Recent research has demonstrated a correlation between the presence of certain types of gram-positive bacteria in the human gut with obesity and type 2 diabetes. these findings best support which of the following statements?

a.) normal microbiota may significantly impact human health and disease.

b.) the presence of gram-positive bacteria in the human gut causes obesity and type 2 diabetes.

c.) gram-positive bacteria compose the majority of normal microbiota in the human gut of people with obesity and type 2 diabetes.

d.) obesity and type 2 diabetes is caused by normal microbiota in the human gut.

The correct option is A. Normal microbiota may significantly impact human health and disease.

Explanation:

A wide number of microorganisms are present on or inside of our body. All these microorganisms make up the natural microbiota. The normal microbiota is very important to maintain the health of the host.

However, any microbial imbalance can lead to causing disease in its host. The microbiota of the gut have a disease-promoting effect but can also have protective properties. Differences in this microbiota can lead to serious conditions.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."