Reproduction in Organisms

Q.

Why is the reproduction essential for organisms?

Q.

Which is a better mode of reproduction; sexual or asexual? Why?

Q.

Offsprings formed due to sexual reproduction have better chances of survival. Why? Is this statement always true?

Q.

Higher organisms have resorted to sexual reproduction in spite of its complexity. Why?

Q.

What are the 8 necessary life functions?

Q.

What events take place during spermatogenesis?

Q.

There are various types of reproduction. They 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 make up

Q. Parthenogenesis is the development of unfertilized ovum into a fully formed haploid organism. Natural parthenogenesis is found in

1. Lizards
2. House fly
3. Frogs
4. Honey bee

Q. Which of the following is not true about reproduction?

1. When two parents (opposite sex) participate in the reproductive process, it is called sexual reproduction.
2. Reproduction is defined as a biological process in which an organism gives rise to young ones (offspring) identical to itself.
3. Reproduction enables the continuity of the species, generation after generation.
4. None of the above.

Q.

Why is reproduction essential for organisms?

Q.

Which is a better mode of reproduction sexual or asexual? Why?

Q.

Which of the following is a technique of direct introduction of gametes into the oviduct?

1. IVF

2. ET

3. MTS

4. POST

Q.

Why asexual reproduction is sometimes disadvantageous?

1. It allows an animal to produce many offspring quickly.

2. It saves the time and energy of gamete production.

3. It allows animals which do not move around to produce offspring without finding mates.

4. It produces genetically uniform populations.

Q. Darwinian evolutionary fitness is measured in terms of

1. Ability to fight with others
2. Size of the individual
3. Good health
4. Reproductive success

Q. How many sperms are formed from a secondary spermatocyte?

1. 4
2. 8
3. 2
4. 1

Q.

What is meant by Reproduction?

Q.

Reproduction is linked to stability of population of a species. Justify the statement.

Q. Define reproduction.

Q.

In the GIFT assisted reproduction technique, egg and sperm mix in the ______.

Q. Asexual reproduction requires only one parent.

1. False
2. True

Q.

Evolutionary change is not possible in_____________.

Q.

All organisms die without fail, but species continue to live and show diversity or natural selection due to -

1. Photosynthesis

2. Respiration

3. Reproduction

4. Nutrition

Q.

How reproduction is synonymous with growth?

Q. Higher organisms have resorted to sexual reproduction in spite of their complexity. Why?

Q. The life span of a dog is

1. 16 - 18 months
2. 16 - 18 weeks
3. 16 - 18 days
4. 16 - 18 years

Q.

Offspring formed due to sexual reproduction have better chances of survival. Why? Is this statement always true?

Q. The most important characteristics of living organisms is

1. Protoplasm
2. Multiplication
3. Movement
4. Growth

Q.

Higher organisms have resorted to sexual reproduction in spite of its complexity. Why?

Q. The living organisms can be unexceptionally distinguished from the non living things on the basis of their ability for

1. responsiveness to touch
2. interaction with the environment and progressive evolution
3. reproduction
4. growth and movement

Q. All living organisms produce young ones of their own kind. Which life process is responsible for it? Explain in detail.