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