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