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सही उत्तर है 9 कैलोरी।

भोजन से प्राप्त होने वाली ऊर्जा का 50-60% भाग कार्बोहाइड्रेट्स से प्राप्त होनी चाहिए। एक साधारण व्यक्ति के भोजन में 400-450 ग्राम कार्बोहाइड्रेट्स की मात्रा प्रतिदिन उचित मानी जाती है। परन्तु शर्करा के रोगी के लिए इसकी मात्रा 90-110 ग्राम कार्बोज़ प्रतिदिन ठीक है। प्रतिदिन कैलोरी की आवश्यकता का लगभग 15% भाग चर्बी से मिलना चाहिए। यह मात्रा 40-45 ग्राम प्रतिदिन होनी चाहिए।

घी, मक्खन, क्रीम आदि।

 The removal of salt from seawater by using a semipermeable membrane by a process called desalination.

The process in which water molecules enter the cell is called ‘Endosmosis’.

Correct Answer is : (d) Ligase

(a) Golden Rice

The process in which water molecules leave the cell is called ‘Exosmosis’.

AIDS is a sexually transmitted disease, which can be transmitted by:

• Unprotected sexual intercourse
• Through infected needle or syringe.

Plastids, such as chloroplasts are four only in plant cells. Also, the plant cells have vacuoles and cell wall.

The life cycle of a frog is comprised of three stages, namely the egg, tadpole (larva) and the adult frog. In its life cycle, the frog shows drastic changes in the physical appearance of each stage. That is, the tadpole undergoes drastic changes to transform into an adult frog, in terms of body parts. This change is termed as metamorphosis.

• The first stage of life cycle of a frog is the egg. Eggs of a frog are present as a cluster and are slimy in nature. They hatch in around 3-25 days, depending on species and temperature of water. The hatched egg proceed to next stage, the tadpole.
• The second stage is the tadpole. These are long, slender organisms, which metamorphose into an adult frog, over weeks. It has an ill-defined head-body and tail, as body parts.
• The last stage is of the adult frog, which is the transformed tadpole. It has no tail, but limbs, and a properly differentiated body and head.

(a) Cross pollination

Reproduction.

Answer is (D) a and b

Reproduction is an important life process which ensures that a plant or animal species does not disappear from this earth.

The fusion of the male game (sperm) and the female game (ovum) is called fertilization. This results in the formation of fertilized egg or zygote.

Internal fertilization does not occur in fish.

(a) In sexual reproduction, two parents are involved. 

(b) In asexual reproduction, only one parent is involved.

Fertilization results into formation of zygote.

Ovaries produce egg (or ova) in humans.

An animal which is an exact copy of its parents is called clone.

The male gametes produced by testes are called sperms. These are small in size, single cells, with all the usual cell components. 

The sperms have three parts:

• Head
• Middle piece
• Tail.

Ovary produces female sex cells called eggs.

In asexual reproduction involves One parent.

Testes: The male reproductive organs include a pair of testes which are egç shaped and produces the male gametes called sperms.

Human one is not an oviparous animal.

There are two methods of reproduction: 

1. Sexual reproduction 

2. Asexual Reproduction

The male gametes in human are called sperms.

The female sex cells (gametes) in humans are called eggs.

Answer is (D) Crow

The transformation of the larva into an adult through drastic changes is called Metamorphosis.

Sex cells are also known as gametes.

The two types of individuals based on sexuality are – male and female.

No. All organisms do not give birth to individuals like humans.

(C) ii and iv only

(D) Reproduction

C) Metamorphosis

The process by which male and female gametes fuse to each other is called fertilization.

C) Constriction in centre of nucleus is found in 2nd diagram

A) Providing energy for it’s movements

Female fish release eggs into water and male fish releases sperms. Sperms swim randomly in water and comes in contact with the eggs. The nucleus of the sperm moves into the egg and fuses with it. Since fertilisation occurs in water, outside the female body, it is external fertilisation.

The fusion of a sperm with an ovum to form a zygote during sexual reproduction is called fertilization.

1 – Testes 

2 – Sperms 

3 – Ovary 

4 – Ovum 

5 – Embryo 

6 – Foetus

Answer is (A) a and c

Male gamete or sperm or spermatozoa. 

The structure of sperm has a head, a middle piece and a tail.

(a) A-sperm; B-ovum (egg) 

(b) Fertilisation 

(c) Sperm nucleus fuses with the egg nucleus to form the zygote.

Development of embryo takes place in Uterus

1. Cloning is the reproduction of an exact copy of the cell, any other living part or complete organism from somatic cells. 

2. Cloning of an animal was successfully performed for the first time by lan Wilmut in Scotland.

Zygote is formed when two gametes are fused together.