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