How do organisms reproduce Worksheet-4
A. Paramecium B. Amoeba
C. Plasmodium D. Leishmania
(i) It makes possible the propagation of some seedless fruit plants like banana, oranges, grapes etc.
(ii) It is the mean to produce genetically identical off-springs.
(iii) It brings more adaptability of plants to the changed environments.
(iv) It brings early flowering and fruiting in plants.
(v) It brings adequate dispersal of vegetative propagules and thus reduces overcrowding.
A. (ii) & (iv) B. (ii), (iv) & (v)
C. (i), (iii) & (iv) D. (iii) & (v).
A. X B. Y C. Z D. Both X & Y
A. Rose – Cutting
B. Bougainvillea – Budding
C. Apple – Grafting
D. Grapevine – Layering
A. Papaya B. Mustard
C. Mulberry D. Watermelon
A. Small and contain stored food
B. Large and motile
C. Large and contain stored food
D. Small and motile
A. It takes up relatively little space compared with growing plants in fields
B. It can be carried out independently of seasonal changes of climate
C. It is suitable for propagation of only seedless plants
D. It produces disease free plants
A. P & Q B. Q & R C. R & S D. S & T
A. Pollen grains are light and dry whereas the stigma is long and sticky
B. Flowers are brightly coloured
C. Pollen grains are light, small and dusty whereas the stigma is hairy and feathery
D. Flowers are small with nectar and odour
C. Cross pollination
D. Both Allogamy & Cross pollination