Assertion   :       Amoeba shows multiple fission during unfavourable conditions.

Reason      :       Chances of survival are less during unfavourable conditions.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false

Subtopic:  Asexual Reproduction |
 62%
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Match the following:

1. Zoospores       P- Yeast

2. Conidia           Q- Amoeba

3. Buds               R- Chlamydomonas

4. Gemmules       S- Penicillium

5. Budding           T- Hydra

6. Binary fission   U- Sponge

1.1-R, 2-S, 3-T, 4-U, 5-P, 6-Q

2.1-P, 2-Q, 3-U, 4-T, 5- S, 6-R

3. 1-R, 2-S, 3-T, 4-P, 5-Q, 6-U

4.1-R, 2-S, 3-U, 4-T, 5-P, 6-Q

Subtopic:  Asexual Reproduction |
 90%
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Match the following

1-Eyes of              P-Ginger

2-Rhizone of       Q-Potato

3-Bulbil of           R- Agave

4-Leaf buds of    S- Bryophyllum

5-Offset of          T-Water hyacinth

A. 1-Q, 2-R, 3-P, 4-S, 5-T

B. 1-S, 2-P, 3-R, 4-Q, 5-T

C. 1-Q, 2-P, 3-R, 4-S, 5-T

D. 1-T, 2-P, 3-R, 4-S, 5-Q

Subtopic:  Asexual Reproduction |
 89%
From NCERT
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An invasive weed found in standing water is

A. Grass

B. Lotus

C. Aquarium oxygen plant

D. Water hyacinth

Subtopic:  Asexual Reproduction |
 97%
From NCERT
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In vegetative propagation, when the _____ come in contact with damp soil or water, they produce roots and new plants.

1. Shoot

2. Node

3. Axial shoot

4. Seed

Subtopic:  Asexual Reproduction |
 70%
From NCERT
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Which among the following is immortal

A. Sea algae

B. Amoeba

C. Plants grown by vegetative propagation

D. Every living organism is mortal

Subtopic:  Asexual Reproduction |
 84%
From NCERT
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The females of placental mammals exhibit cyclical changes in the activities of ovaries and accessory ducts as well as hormones during the reproductive phase. In non-primate mammals it is known as

A. Oestrus cycle

B. Menstrual cycle

C. Reproductive cycle

D. Sexual cycle

Subtopic:  Sexual Reproduction |
 86%
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There are various types of reproduction. The type of reproduction adopted by an organism depends on:

A.The habitat and morphology of the organism

B.Morphology of the organism

C.Morphology and physiology of the organism

D.The organism’s habitat, physiology and genetic makeup

Subtopic:  Reproduction |
 79%
From NCERT
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Non-flagellate spores are called conidia. In which organism they are seen?

A. Penicillium

B.  Hydra

C. Chlamydomonas

D. Amoeba

Subtopic:  Asexual Reproduction |
 90%
From NCERT
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Development of zygote taking place outside the body is called?

A. Viviparous

B. Oviparous

C. Omnivorous

D. Surrogacy

Subtopic:  Events during Sexual reproduction |
 81%
From NCERT
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