Advertisements
Advertisements
Question
Choose the correct answer:
When pregnancy does not occur, the life of corpus luteum is about _____________
Options
4 days
10 days
14 days
28 days
Solution
When pregnancy does not occur, the life of corpus luteum is about 10 days
APPEARS IN
RELATED QUESTIONS
Suggest three contraceptive methods to control the size of human population, which is essential for the health and prosperity of a country. State the basic principle involved in each.
State the changes that take place in the uterus when Implantation of embryo has occurred
Give scientific reasons: When an ovum gets fertilized, menstrual cycle stops temporarily in a woman.
Give biological explanations for All the food chains begin with green plants.
What changes are seen in boys at the time of puberty?
Which one of the following best describes the function of the umbilical cord? It :
(a) feeds the embryo with digested substances.
(b) conveys nutrients and wastes to and from the embryo respectively
(c) removes waste matter from the embryo to the mother's blood.
(d) supplies oxygenated blood from the mother to the embryo.
Describe the role of the following in human beings:
(i) Seminal vesicles
(ii) Prostate gland
Explain how the sex of the child is determined at the time of conception in human beings.
Answer the following question:
Why are family planning measures needed in our country?
Choose the Odd One Out: