Advertisements
Advertisements
Question
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.
Solution
(b) conveys nutrients and wastes to and from the embryo, respectively.
The exchange of nutrients, oxygen and waste products between the embryo and the mother's body takes place through the umbilical cord.
APPEARS IN
RELATED QUESTIONS
State its functions in case of a pregnant human female.
What are the changes seen in girls at the time of puberty?
List the two types of reproduction. Which one of the two is responsible for bringing in more variations in its progeny and how?
Where in the human body does an ovum get fertilised?
Where does fertilisation take place in human females?
In human females, an event that indicates the onset of reproductive phase is :
(a) growth of body
(b) change in hair pattern
(c) change in voice
(d) menstruation
The normal body cell of an organism contains 28 pairs of chromosomes. The number of chromosomes present in its germ cell will be
(a) 28
(b) 14
(c) 56
(d) 42
Complete the following statement by choosing the correct alternative:
Sterilization in female is due to cutting off of ______.
Define the following:
Clone
Answer the following question.
What is contraception? List three advantages of adopting contraceptive measures.