Ncert – class 8- science – Chapter 6: Reproduction in Animals 1 Welcome to your Ncert - class 8- science - Chapter 6: Reproduction in Animals 1 1. Which of the following statements is not correct regarding oviparous animals? None of these Development of zygote takes place outside the female's body. Examples of oviparous animals are all birds, most reptiles and egg-laying mammals. Females lay fertilized/unfertilized eggs at a safe place. None 2. Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because Greater amount of DNA is involved in sexual reproduction Gametes of parents have qualitatively different genetic composition Genetic material comes from parents of two different species Sexual reproduction is a lengthy process None 3. _______ is the production of an exact copy of a cell of any living part or a complete organism. Binary fission Cloning Budding Multiple fission None 4. Fill in the blank by choosing the correct option:During binary fission, the nucleus of the parent cell __________. does not divide None of the above divides sometimes divides while other times does not None 5. How do the sperms reach the egg during external fertilization in water bodies? None of the above Eggs float to the sperms Animals carry sperms to the egg Sperms randomly swim to the eggs using tail None 6. Asexual method of reproduction by binary fission is common to which of the following?(i) Some eukaryotes(ii) All eukaryotes(iii) Some prokaryotes(iv) All prokaryotes (iii) and (iv) (i) and (ii) (i) and (iv) (ii) and (iii) None 7. ........... is a mode of asexual reproduction. Germination Budding Pollination Cloning None 8. Asexual reproduction produces new individuals that are: Genetically identical to their parents. Both Genetically identical to their parents. and Genetically identical to their siblings. Genetically unidentical to their parents. Genetically identical to their siblings. None 9. Which of the following points is correct?OviparousViviparous1. They lay eggs.1. Give birth to young ones directly.2. Chances of survival of young ones are less.2. Chances of survival of young ones are more.3. E.g. Whale and dolphins3. E.g. Birds and frog 1,2 1,2 2,3 None None 10. Unlike hen's egg, frog's egg is not covered by a ________ and it is comparatively very delicate. None of the above jelly shell spore None 11. What type of fertilization takes place in frog and fish? Internal fertilization In vitro fertilization External fertilization In vivo fertilization None 12. Which of the following stages is necessary in the life cycle of an animal in which complete metamorphosis occurs? Adult All of the above Egg Larva None 13. Binary fission is seen in: Amoeba Kalanchoe Homo sapiens Spirogyra None 14. Apart from Hydra, budding can also be observed in: Yeast None Ameoba Both A and B None 15. Give the proper correlation.Budding : ______ :: Binary fission :______ Amoeba, Rhizopus Hydra, Rhizopus Amoeba, Hydra Hydra, Amoeba None 16. How did Dolly, the cloned sheep die? Brain haemorrhage Lung disease Heart disease Mouth infection None 17. The fusion of male and female gametes results in the formation of: Embryo Zygote Sperm Egg None 18. Single called animals are said to be immortal because They can reproduce throughout their life span They can tolerate any degree of change in temperature They continue to live as their daughter cells They grow indefinitely in size None 19. Egg-producing animals such as birds are called: Hermaphrodite Oviparous Viviparous Unisexual None 20. In human beings, a single matured egg is released into the by one of the ovaries every month. Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
