Do human beings lay eggs as a hen does or they give birth to a baby?

In human beings the egg are

Select the correct statements from the following. A. Animals that have outside ears and hair on their body give birth to the young ones. B. Animals that do not have outside ears and hair on their body lay eggs. C. Animals that do not have outside ears and hair on their body give birth to the young ones. D. Animals that have outside ears and hair on their body lay eggs.

In human beings, the chromosomes that determine birth of a normal female child are

How many eggs are released by a human ovary in a month ? How many eggs to do think would have been released , if the mother gave birth to identical twins ? Would you answer change if the twins born were fraternal ?

Bacteria have a simpler body plan when compared with human beings. Does it mean that human beings are more evolved than bacteria ? Explain your answer.

For each of the following statements, determine whether an inclusive OR or exclusive OR is used.Give reasons for your answer: A lady gives birth to a baby boy over a baby girl.To apply for a driving licence,you should have a ration card or a passport.

In which one of the following sets of animals do all the four give birth to young ones?