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Important Questions: Reproduction in Animals


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20 Questions MCQ Test Science Class 8 | Important Questions: Reproduction in Animals

Important Questions: Reproduction in Animals for Class 8 2022 is part of Science Class 8 preparation. The Important Questions: Reproduction in Animals questions and answers have been prepared according to the Class 8 exam syllabus.The Important Questions: Reproduction in Animals MCQs are made for Class 8 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Important Questions: Reproduction in Animals below.
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Important Questions: Reproduction in Animals - Question 1

Which of the following statements is true about asexual reproduction?

Detailed Solution for Important Questions: Reproduction in Animals - Question 1

Reproduction without the fusion of gametes is known as asexual reproduction. The offspring are genetically identical.

Important Questions: Reproduction in Animals - Question 2

Which of the following is NOT a characteristic feature of sexual reproduction?

Detailed Solution for Important Questions: Reproduction in Animals - Question 2

In sexual reproduction, the offspring receives characteristics from both the parents..

Important Questions: Reproduction in Animals - Question 3

B Which of the following is NOT an example of asexual reproduction?

Detailed Solution for Important Questions: Reproduction in Animals - Question 3

Butterfly undergoes sexual reproduction.

Important Questions: Reproduction in Animals - Question 4

Which of the following is/are paired structure in human reproductive system?

Detailed Solution for Important Questions: Reproduction in Animals - Question 4

Ovaries testes and fallopian tubes are the paired structures in human reproductive system.

Important Questions: Reproduction in Animals - Question 5

Which of the following statements about the human female egg cell is incorrect?

Detailed Solution for Important Questions: Reproduction in Animals - Question 5

An egg cell can live in the body for only one day.

Important Questions: Reproduction in Animals - Question 6

Identify W, X, Y and Z in the given figure.

Detailed Solution for Important Questions: Reproduction in Animals - Question 6

W is placenta, X is foetal, Y is amniotic fluid and Z is foetal membrane.

Important Questions: Reproduction in Animals - Question 7

Which part within the uterus prevents the mixing of the blood of the foetus with that of the mother?

Detailed Solution for Important Questions: Reproduction in Animals - Question 7

Placenta prevents the mixing of the blood of the foetus with that of the mother.

Important Questions: Reproduction in Animals - Question 8

Which of the following sequences is in the correct order?

Detailed Solution for Important Questions: Reproduction in Animals - Question 8

The correct sequence in the formation of a baby is as follows. Zygote →  Embryo → Foetus → Baby

Important Questions: Reproduction in Animals - Question 9

Which of the following is NOT true of the process of reproduction?

Detailed Solution for Important Questions: Reproduction in Animals - Question 9

All living organisms reproduce.

Important Questions: Reproduction in Animals - Question 10

Which of these organisms reproduce in the same way as yeast?

Detailed Solution for Important Questions: Reproduction in Animals - Question 10

Hydra reproduces by budding.

Important Questions: Reproduction in Animals - Question 11

Which of the following is/are types of asexual reproduction?

Detailed Solution for Important Questions: Reproduction in Animals - Question 11

Budding, binary fission, spore formation are types of asexual reproduction.

Important Questions: Reproduction in Animals - Question 12

Which of the following comparisons are true of sexual and asexual reproduction?

 

Detailed Solution for Important Questions: Reproduction in Animals - Question 12

Options I and III are true of comparison of sexual and asexual reproduction.

Important Questions: Reproduction in Animals - Question 13

How are Paramecium and Amoeba are similar?

Detailed Solution for Important Questions: Reproduction in Animals - Question 13

Unicellular organisms like amoeba and paramoecium undergoes binary fission.

Important Questions: Reproduction in Animals - Question 14

In which of the following parts of the female reproductive system does fertilization occur?

Detailed Solution for Important Questions: Reproduction in Animals - Question 14

Fertilization takes place in the fallopian tube.

Important Questions: Reproduction in Animals - Question 15

Identify R, S and T in the given figure.

Important Questions: Reproduction in Animals - Question 16

Read the given information and identify P, Q and R.

Detailed Solution for Important Questions: Reproduction in Animals - Question 16

P is ovulation, Q is implantation and R is fertilization.

Important Questions: Reproduction in Animals - Question 17

What is the function of the amniotic fluid?

Detailed Solution for Important Questions: Reproduction in Animals - Question 17

The fluid protects the foetus from shock.

Important Questions: Reproduction in Animals - Question 18

The substances that are transported through umbilical cord

Detailed Solution for Important Questions: Reproduction in Animals - Question 18

Umbilical cord transports urea, antibodies and carbon dioxide.

Important Questions: Reproduction in Animals - Question 19

In Hydra, the mode of reproduction is

Detailed Solution for Important Questions: Reproduction in Animals - Question 19

Hydra reproduce by sexual and asexual mode. Budding is the process by which hydra reproduce through asexual mode. An outgrowth grows from the parent body due to the repeated cell division at a specific site. The cell which divide rapidly are known as regenerative cell. The outgrowth from the parent body is known as bud. This bud separates from the parent and develops into a genetically identical new organism.

During unfavourable conditions, hydra reproduce sexually. Swellings in the body wall develop into either a simple ovary or testes. The testes release sperms which fuses with the ovary.

Important Questions: Reproduction in Animals - Question 20

In which of the following animals fertilization is external?

Detailed Solution for Important Questions: Reproduction in Animals - Question 20

Fertilization is external in fish and amphibians.

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