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Higher the rate of transpiration, greater the rate of absorption of ______ from the soil.

_________ is a diagrammatic representation of inheritance of a particular disease or trait among the individuals of many generations of a family.

While performing the experiment with raisins to determine the percentage of water absorbed by them, a student made following measurements:

Mass of water in the beaker = 40 g

Mass of raisins before soaking = 5 g

Mass of raisins after soaking for 2 hours = 8 g

Mass of water left in the beaker after the experiment = 35 g

The percentage of water absorbed by raisins is:

Label the glands in the picture below:

Vegetative propagation in plants like citrus, jasmine and grape vine is done by the process of__________.

Which plant is grown by cutting method?

The human embryo is referred to as a 'foetus' from the beginning of

Menopause is the

Organisation of ectoderm, mesoderm and endoderm is known as

Anxiety and eating spicy food together in an otherwise normal human may lead to

Which of the following hormones uses calcium pathway for its action?

Which of the following is/are the main functions of the internal ear?

Which of the following is/are not matched correctly?

What is feedback mechanism

Question 36
Label the endocrine glands in the figure

The ratio between pollen mother cell and microspores produced during microsporogenesis is -

What happens to the glucose formed during photosynthesis?

Compare between living and non-living.

Which of the following represents the correct sequence of the layers of the meninges from outside to inside?

Rose and jasmine plants are grown by artificial vegetative propagation because …………………

Complete the dialogue by picking the correct option.

Mrinal asked his brother Mridul if he could watch the vessel of milk kept on the stove since he had to run some emergency errands. Mridul excused himself by saying he had to go to class.

Mrinal: Could you watch the vessel of milk kept on the stove? I have to run some emergency errands.

Mridul: a)__________________________________

Name the smallest blood vessel of the circulatory system.

Where is female egg cell present in the gynoecium of a flowering plant?

The gonadotropin releasing hormone (GnRH) released by the _____(i)_____stimulates the ___(ii)______ to release ___(iii)______ and _____(iv)______. The _____(iii)____ stimulates the leydig cells to produce____(v)______. The ____(iv)___ stimulates the sertoli cells to secrete substances important for sperm development.

List three major landmarks in human history which contributed to the sudden rise in population of the world.

Question 7
Read the following statements with reference to the villi of small intestine.

i) They have very thin walls.
ii) They have a network of thin and small blood vessels close to the surface.
iii) They have small pores through which food can easily pass.
iv) They are finger-like projections.

Identify those statements which enable the villi to absorb digested food.

(a) (i), (ii) and (iv)
(b) (ii), (iii) and (iv)
(c) (iii) and (iv)
(d) (i) and (iv)

What characteristic is shared by simple diffusion and facilitated diffusion?

Which of the following characterises living things?

Observe the picture below. How is it possible to have so many diffrent varieties of butterflies and chillies? Choose the correct option for the reason.

Sewage water from residential areas and used water from industries must be disposed of directly into the rivers and lakes.

The correct sequence of radial movement of water in root is:

Explain the role of platelets in blood. [3 MARKS]

In the figure given here certain parts are indicated by alphabets. Select the answer which contains, the correct matching of these alphabets, with the correct parts.

Larynx is

Which portion of the nephron extends into the medulla?

Deficiency of which hormone in the body causes diabetes mellitus?

Cellular respiration is carried out by ________.

Assertion : Both male and femlae parent helps to determine the trait of the progeny

Reason : Male parent contributes two alleles of the gene to control the trait.

What is the nature and size of the image formed on retina??

Is it same size of the object of yes then explain ?

AIDS spreads through______.

Which of the following acts as a stimulus in the process of hydrotropism?

(a) hydrocarbon

(b) hydrogen oxide

(c) hydrogen chloride

(d) hydrogen peroxide

The examples of ductless glands are?

The hormones thyroxine, adrenaline and the pigment melatonin are formed from