Answer:
D
Explanation:
l hope it helps****let me know if I am wrong
During fertilization, the pituitary gland secretes the follicle-stimulating hormone, which acts on the follicles and stimulates them to produce progesterone. The correct option is B.
<h3>What is fertilization?</h3>
Fertilization is defined as the union of two haploid gametes, the spermatozoa and the oocyte, also known as the egg, to restore the diploid state, form a zygote through the process of egg activation, and initiate a series of mitotic divisions that result in cell differentiation and embryo development.
During fertilization, the pituitary gland secretes the follicle-stimulating hormone, which acts on the follicles and stimulates them to produce progesterone.
If fertilization occurs, the fertilized egg attaches to the uterine lining and a placenta develops.
The fertilized egg then sends a signal to the ovary to continue secreting progesterone, which keeps the pregnancy going by keeping the uterus lining thick and nourishing for the developing embryo.
Thus, the correct option is B.
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Answer:
C
Explanation:
Semi-permeable means it lets particular things in. It is also called a selectively permeable membrane
Answer:
B) I and II
Explanation:
Male reproductive system produce gametes in the testis which is the part of male reproductive system. Testis are two in number normally which compose of seminiferous tubules which have spermatogenic cell which are responsible for the production of spermatids with the help of sertoli cells present in the seminiferous tubules.After production of gametes the spermatid are delivered to the female reproductive system by copulating organ which in human is penis.the sperm 1st produces in the semeniferus tubules then transfer in to the rate testies ,epidydemis then vas deference and then urethra and then outside the body.
Answer:
Newton realized that the reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.