Q5 of 465 Page 51

Weeds affect the crop plants by

Weeds affect the crop plants by taking up the space nutrients and light of the main crop. They also harm or kill the main crop.

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3

Which one is an oil yielding plant among the following?

 4

Which one is not a source of carbohydrate?

 6

Find out the correct sentence

(i) hybridization means crossing between genetically dissimilar plants


(ii) cross between two varieties is called as inter-specific hybridization


(iii) introducing genes of desired characters into a plant gives genetically modified crop


(iv) cross between plants of two species is called as inter varietal hybridization

 7

Which one of the following species of honey bee is an Italian species?