Given below are diagrams showing the different stages in the process of fertilisation of an egg in the human female reproductive tract

Study the diagrams and answer the questions:

1. Arrange the
...

An organic compound containing --COOH functional group. Identify the substance underlined.

The following diagram demonstrates a physiological process taking place in green plants. The whole set up was placed in bright sunlight for several hours. Study the diagram and answer the questions that...

Colour blindness is more common in men than in women.

Give scientific reason.

The ore of Uranium found in nature contains ₉₂U²³⁸ and ₉₂U²³⁵. Although both the isotopes are fissionable, it is found out experimentally that one of the two isotopes is more easily...

How are the Rajya Sabha members elected?

If the straight lines 3𝑥 - 5𝑦 = 7 and 4𝑥 + 𝑎𝑦 + 9 = 0 are perpendicular to one another, find the value of a

Movement of molecules of a substance from their higher concentration to lower concentration when they are in direct contact.

Give appropriate biological or technical terms for the following:

Draw the diagram of a dual control switch when the appliance is switched ‘ON’.

Define heat capacity and state its SI unit

K, Pb, Ca, Zn. (In the increasing order of the reactivity)

Explain why the forest cover in India is shrinking?

The circumference of the base of a cylindrical vessel is 132 cm and its height is 25 cm. Find the

i. radius of the cylinder
ii. volume of cylinder. (use π = $\frac{22}{7})$

Copper sulphate solution reacts with sodium hydroxide solution to form a precipitate of copper hydroxide according to the equation:

 2NaOH + CuSO₄ → Na₂SO₄ + Cu(OH)₂ ↓

(i) What mass of copper...

The structure which connects the placenta and the foetus.

Education is very important for population control.

Give biological explanation.