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Which one of the following is not a micronutrient?

Which of the following statement is correct?



Statement 1 (S1): The gametes or sex cells have only half the number of chromosomes compared to other cells in the body.

Statement 2 (S2): Mitosis gives rise to gametes.

Cocount is a large and heavy fruit. How is it adapted for seed dispersal by water?

Which of the following is not a characteristic feature of cartilage?

What is cellular respiration? What are 2 types of cellular respiration?[3 MARKS]

Raju observed swelling in his neck region. What could be the disease he is suffering from?

Muscles which contract and relax as per our will are called:

Which of the following statement is FALSE regarding the advantages of vegetative propagation?

i. It is quicker and more certain

ii. It produces new individuals with exactly identical qualities as the parent

iii. Flowers produced are of superior quality

iv. The desirable character of fruit cannot be maintained

Through which organs do humans excrete salts?

Read statements S1 and S2, choose the correct option.

S1: Adulteration happens more in loosely sold items than packed ones.

S2: Powder or paste forms are adulterated most.

1) how do you think you would be affected if the surface area of your lungs was reduced?

The major excretory product in humans is:

Select the part of the excretory system where urine is stored.

The respiratory membrane, through which gas must diffuse, consists of the followings EXCEPT:

Carbon dioxide and water are released during:

What is respiration? Is it a physical or chemical change?

Explain the functions of the following organs in the human body. [5 MARKS]
1. Tongue
2. Gallbladder
3. Small intestine
4. Villi
5. Teeth

Explain anatomy

Question 10

Which of the following is not a function of epidermis?



(a) Protection from adverse conditions

(b) Gaseous exchange

(c) Conduction of water

(d) Transpiration

Solve the puzzle using the clues given below.

Clues : Across

(1) Unicellular animal

(2) Animal with tissue level organisation

(3) Single living thing

(4) Where living things live

(5) All animals and plants living together

___ system controls and coordinates the activities of all the systems in our body.

A person sleeping under the tree during night feels lethargic when he wakes up in the morning. What could be the possible reason?

Explain the difference between-

(a) Asexual reproduction, sexual reproduction

(b) Androecium, gynoecium

Which of the following is not considered as an inorganic antiseptic?

Which one of the following does not secrete any enzyme?

Harmful radiation emitted by the sun is ____.

DIRECTIONS: Match Column – I with Column – II and select the correct answer using the codes given below the columns.

$\begin{array}{cc}Column-I& Column-II\\ A.Redeyedfrog& P.Thickskinandstrongsenseofsmell\\ B.Toucan& Q.Thickskinandsensitivehearing\\ C.Bigcats& R.Longlargebeak\\ D.Polarbear& S.Stickypad\end{array}$

Fill in the blanks.

(a) An amoeba moves with the help of …………

(b) Plants need light, chlorophyll, ………… and water for making food.

(c) The ………… secreted by the salivary glands is fixed in the food, in the mouth itself.

(d) The carbon dioxide in the air in the jar is absorbed by ………… .

Question 27
Read the following passage carefully and answer the questions that follows it.

Bile juice is stored in a sac called the gall bladder, located near its organ of secretion that is the liver. The gall bladder releases the bile juice into the small intestine whenever food reaches there. Though bile juice is devoid of any digestive enzymes, it is required for the digestion of fats. The fats cannot be digested easily because they are insoluble in water and are present as large globules. Bile juice breaks down big fat droplets into smaller droplets. These are then easily digested by the enzymes released by the pancreas.

(a) Which organ secretes the bile juice?

(b) Why is digestion of fats difficult as compared to that of other nutrients?

(c) How does bile juice help in digestion of fat?

(d) Where is the digestion of fat completed?

(e) Does bile juice digest fat completely?

The largest muscle of our body is in the ___.

Question 1

Organisms which prepare food for themselves using simple naturally available raw materials are referred to as



(a) heterotrophs

(b) autotrophs

(c) parasites

(d) saprophytes

Discuss on the type of clothing oftenly worn in winter season. Give reasons to justify your points. [5 MARKS]