SAT (Stage-1) M...

The process of meiosis is responsible for the formation of haploid germ cells. In females, this process occurs in:

A disc-shaped organ that acts as a connecting link between a mother's blood and foetal blood is:

Your friend named Gaurav lives in Himachal Pradesh. He told you that many of his fellow villagers had developed a visible swelling in the neck. People in many other villages have also been affected in a similar way. The most probable reason is:

Which element is essential part of the enzyme nitrogenase required during nitrogen fixation:

Consider the following statements:

(1) Root hairs are specialized for the uptake of nutrients from the soil.
(2) Presence of gas bubbles in xylem do not affect the flow of water in the xylem vessels.
(3) Evaporation of water molecules from a plant's surface helps in upward movement of water.

Which of the statements given above are correct?

In vegetative propagation, new plants grow from different parts of the parent plant. Which part of a plant does not take part in vegetative propagation?

Four farmers A, B, C and D adopt different farming practices. In which of the following cases will there be maximum benefits?

Which of the following statements is/are false?

a. In the asexual reproduction method, certain body cells of the parent organism undergo repeated mitotic cell divisions to form two or more new organisms of the same kind.
b. Humans, frogs, hens, etc. reproduce by the method of sexual reproduction.
c. In binary fission, the parent organism splits to form many new organisms at the same time.

______ use(s) holozoic mode of nutrition.

There are various methods of preventing unwanted pregnancy. One of them is surgical method. This method of preventing fertilisation in females involves tying up of the

Ramkali saved Rs. 5 in the first week of a year and then increased her weekly savings by Rs. 1.75. If in the n^th week, her savings became Rs. 20.75, find the value of n.

Find the remainder when 7²¹ + 7²² + 7²³ + 7²⁴ is divided by 25.

HCF of three numbers is 12. If they are in the ratio 1 : 2 : 3, then the numbers are