Ncert- science – class 7- Chapter 9 – Motion and Time 2 Welcome to your Ncert- science – class 7- Chapter 9 – Motion and Time 2 1. Clone are Sexually produced identical organism Sexually produced non-identical organisms Asexually produced non-identical organisms Asexually produced identical organisms None 2. Fertilization is Fusion of female gametes Fusion of male gametes Fusion of male and female gametes All of above. None 3. In which of the following organisms fragmentation occurs? All of the above Yeast Bacteria Spirogyra None 4. In which of the following modes of reproduction new plants are produced without seeds? Asexual reproduction BothAsexual reproductionand Vegetative propagation Sexual reproduction Vegetative propagation None 5. The classification of the flowers as unisexual and bisexual is on the basis of: Presence of anther and filament of plant Both A and C Presence of stamen and pistil in the flower Presence of flowers at the tip of plant None 6. In which of the following processes water is involved in the reproduction? Spore formation Fragmentation All of the above Budding None 7. Pollination refers to the: Transfer of pollen from anther to ovary. Transfer of pollen from anther to ovule. Transfer of pollen from anther to stigma. Transfer of female gametes from anther to stigma., None 8. Which of the following do not produce asexual flower? Cucumber Corn Rose Papaya None 9. The development of an offspring from any part of the body is called: Asexual reproduction Sexual reproduction All of the above Vegetative reproduction None 10. Vegetative propagation refers to the formation of new plants from Stem, leaves and flowers Stem, roots and flowers Stem, flowers and fruits Stem, roots and leaves None 11. Which one is a dicotyledonous plant? Wheat Sugar cane Gram Banana None 12. The process in which organisms break into pieces is called All of the above Budding Fragmentation Spore formation None 13. Which of the following is not correct regarding sexual reproduction? It is a slow process. Gametes are always formed. It is usually biparental. It involves only mitosis. None 14. What are spores? New organisms growing from leaflets. Outgrowths from parent organism. Buds formed in long chains., Tiny cells protected by thick walls to survive unfavorable conditions. None 15. The mode of vegetative reproduction in which scion and stock are tied is called Cutting Tissue culture Layering Grafting None 16. Asexual reproduction is seen in members of Kingdom. All of these Monera Animalia Plantae None 17. ___________ is a life process that is not essential for an individual's survival but for survival of the species. Respiration Nutrition Reproduction Growth None 18. The 'eye' of the potato plant is what The bud is to a flower., The bud is to Bryophyllum leaf. The anther is to stamen. The root is to any plant. None 19. Which one of the following parts of the plant when put into the soil is likely to produce a new plant? A stem with a node Part of a flower Root hair Pedicel None 20. The transfer of pollens from anther to stigma of the same flower or different flower of the same plant is called: Self-pollination Hybridization Cross-pollination Cross-breeding 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.
