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1
The process of fusion of the male and the female gametes is called ___________________
Birth control
Pollination
Fertilisation
Adolescence
2
Which of the following animal shows internal fertilisation ?
Cow
Dog
Cat
All of these.
3
The primary route of transmission of HIV is ___________________________.
Sexual contact
Infected needles
Transfusion of infected blood
Infected woman to her foetus
4
In in - vitro fertilisation, the sperms are mixed with eggs in a ___________________ to carry out fertilisation.
Glass dish
Glass test-tube
Both (a) and (b) are correct.
None of these.
5
In a healthy woman, the fertilisation of egg by the sperm takes place in the ____________________________.
Oviduct
Fallopian tube
6
What are the different methods to control population ?
Natural methods
Artificial methods
Hormonal methods
All of these
7
The 'in vitro fertilisation' technique was initially developed for carrying out the reproduction in _________________ in 1950.
Buffaloes
Farm animals
8
Those animals which give birth to young ones (or baby animals) are called ______________________ animals
Oviparous
Viviparous
Amphibian
9
_________________ changes occurs during puberty.
Change in height
Change in voice
Change in body shape
All of the above
10
Which of the following are correct :
(a) Women who cannot produce babies are called sterile.
(b) In vitro fertilisation' means "in glass fertilisation'.
Only (a) is correct.
Only (b) is correct.
11
Which of the following are correct ?
(a) The transfer of pollen grains from the anther to the stigma is known as pollination. When the anthers grow and mature; they burst open and release pollen grains (male gametes).
(b) The pollen grains are carried to the stigma (female part) of another flower (of the same type) by insects, birds, wind or water.
(c) Insects and birds visit flowers to collect nectar and they are called as pollinators.
Only (a) and (b) is correct .
Only (b) and (c) is correct .
Only (a) and (c) is correct .
All of these .
12
(a) The ovaries are a pair of small, oval organs in the lower part of the abdominal cavity. They produce ova.
(b) At the time of birth, a female already has thousands of immature ova in her ovaries.
Only (a) is correct .
Only (b) is correct .
Both (a) and (b) is correct .
None of these .
13
(a) The human population is growing rapidly and this is a major cause for concern.
(b) The human population is declined rapidly and this is a major cause for concern.
14
(a) Viruses cause STDs such as herpes, genital warts and cervical cancer.
(b) AIDS (Acquired Immune Deficiency Syndrome) is caused by the human immunodeficiency virus (HIV).
(c) Gonorrhea and syphilis are common sexually transmitted bacterial infections.
Only (c) is correct.
15
(a) The fertilisation which takes place inside the female body is called internal fertilisation.
(b) External fertilisation takes place in humans, cows, dogs, cats, tigers, lions,etc
(c) Internal fertilisation is very common in aquatic animals such as frog, fish and star fish, etc.
Only (a) and (c) are correct.
Only (b) are correct.