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