How do Organisms Reproduce Test

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How do Organisms Reproduce Test - 15

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Question 1
1 / -0

On reaching puberty, a woman's ovaries usually release ........... egg each month.

A
One

B
Two

C
Three

D
Many
Solution
- When a girl is born, the ovaries already contain thousands of immature eggs that remain inactive.
- When the girl reaches puberty, the FSH is released which stimulates the ovary to mature one egg every month.
- This egg is released from the ovary every month which enters the fallopian tube and waits for fertilization.
Thus, the correct answer is option A.
Question 2
1 / -0

Identify the wrong pair from the following.

A
Euglena - Binary fission

B
Yeast - Budding

C
Spirogyra - Fragmentation

D
Hydra - Multiple fission
Solution
- The organisms use different methods for reproduction. The reproduction process in Hydra is called budding.
- Budding is the asexual mode of reproduction. In budding, a genetically identical new organism grows attached to the body of the parent and separates on maturity. In the process of budding, a bud develops as an outgrowth due to repeated cell division at one specific site. In Hydra, there is no reproduction through multiple fission.
Thus, the correct answer is option D.
Question 3
1 / -0

In human female, immature eggs are seen for the first time in the ovary during which stage?

A
At puberty

B
Before birth, at the foetus stage

C
During menstrual cycle

D
After the first year of birth

Solution

During the birth of a girl child, there are many follicles that are present in the ovary. When the girl reaches puberty, many of the follicles die. During puberty, the viable follicles develop inside the ovary and can be observed as immature eggs. From these immature eggs, every month one egg matures and is released from one of the ovaries.
Thus, the correct answer is option A.
Question 4
1 / -0

Man and dog reproduce by

A
Laying eggs

B
Hatching eggs

C
Producing young ones

D
Through their roots

Solution

Man and dog are viviparous that means they give birth to young ones through sexual reproduction.
So, the correct answer is 'Producing young ones'.
Question 5
1 / -0

Which is not a female contraceptive method ?

A
Tubectomy

B
Copper-T

C
Loop

D
Vasectomy
Solution
- Vasectomy is a method of male sterilization. In this process, the vasa deferentia are cut and the cut ends are tied to prevent the entry of sperm into the urethra.
- Tubectomy is a female contraceptive method in which the fallopian tubes are clamped or blocked and sealed to prevent eggs from entering the uterus to be implanted.
- Copper -T and loop are the intra-uterine devices that can be implanted into the uterus to prevent pregnancy in females.
So, the correct answer is option D.
Question 6
1 / -0

After attaining puberty, the boys develop a ________ voice.

A
Heavy

B
Light

C
Thinner

D
High pitched

Solution

During puberty, the testes start releasing male hormones (testosterone) that lead to the prominent growth of the voice box or larynx (Adam's apple). This causes the the male voice to be hoarse and heavy.
Therefore, the correct answer is option A.
Question 7
1 / -0

Plants reproduce without fertilization through:

A
Vegetative propagation

B
Budding

C
Pollination

D
Binary fission

Solution

In plants, vegetative propagation is a type of asexual reproduction in which a new plant develops from the vegetative parts of the plant like stem, leaf, roots, etc.
Budding is a type of asexual reproduction seen in fungi (yeast) and in animals like hydra.
Pollination is the process of transfer of pollen grains from the anther to the stigma.
Binary fission is the type of asexual reproduction observed in bacteria and animals like amoeba.
Thus, the correct answer is option A.
Question 8
1 / -0

Which of the following organisms reproduce by budding?

A
Plasmodium

B
Planaria

C
Paramecium

D
Hydra

Solution

Budding is a mode of asexual reproduction seen in Hydra. First, a bud begins to form on the tubular parent body. The bud then develops a mouth and tentacles and detaches from its parent. The new Hydra is fully developed and will find a substrate for its attachment. Thus the correct answer is option D.
Question 9
1 / -0

Binary fission in Amoeba is a type of:

A
Asexual reproduction

B
Sexual reproduction

C
Vegetative propagation

D
Fragmentation

Solution

Binary fission is an asexual type of reproduction seen in amoeba.

So the correct answer is option A
Question 10
1 / -0

.............. are the reproductive organs of flowering plants.

A
Seeds

B
Flowers

C
Fruits

D
All of the above

Solution

Flowering plants reproduce by the formation of gametes and flowers act as the reproductive organs.
Parts of the flower include petals, sepals, one or more carpels (the female reproductive structure), and stamens (the male reproductive structure).
So, the correct answer is option B.

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How do Organisms Reproduce Test - 15

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How do Organisms Reproduce Test - 15

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SHARING IS CARING

Question 1

One

Two

Three

Many

Solution

Question 2

Euglena - Binary fission

Yeast - Budding

Spirogyra - Fragmentation

Hydra - Multiple fission

Solution

Question 3

At puberty

Before birth, at the foetus stage

During menstrual cycle

After the first year of birth

Solution

Question 4

Laying eggs

Hatching eggs

Producing young ones

Through their roots

Solution

Question 5

Tubectomy

Copper-T

Loop

Vasectomy

Solution

Question 6

Heavy

Light

Thinner

High pitched

Solution

Question 7

Vegetative propagation

Budding

Pollination

Binary fission

Solution

Question 8

Plasmodium

Planaria

Paramecium

Hydra

Solution

Question 9

Asexual reproduction

Sexual reproduction

Vegetative propagation

Fragmentation

Solution

Question 10

Seeds

Flowers

Fruits

All of the above

Solution

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