**Easy**quick**extra points** 1. Organic compounds contain..
a. carbon and usually other elements.

b. many kinds of elements except carbon.

c. only carbon.

d. only carbon and hydrogen.

A Trust me I'm a genius

Explanation:

I pretty sure it would only make sense to me

one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen.

Explanation:

S it s A

alteration of the corpus luteum results in early pregnancy loss (early embryonic death)

Explanation:

The corpus luteum is a temporary gland structure in the female reproductive system (formed in the ovary that released its ovum), which is involved in the secretion of progesterone hormone and also moderate levels of other hormones, i.e., estradiol and inhibin A. After 7-10 weeks of gestation, this structure (corpus luteum) is replaced by the placenta that produces progesterone throughout the rest of the pregnancy. Normal progesterone levels (i.e., between 10 and 20 ng/ml) are required prior to embryo implantation, thereby alteration of the corpus luteum function will lead to disturbance of maternal recognition of pregnancy because pregnancy does not occur until the fertilized egg implants into the uterus.