Q7 of 49 Page 85

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

Honey bee is eusocial, creating colonies with a single fertile female (or "queen"), many sterile females or "workers", and small proportion of fertile males or "drones". It is one of the first domesticated insects, and is the primary species maintained by beekeepers to this day for both its honey and pollination services.

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5

Find out the correct sentence

(i) Hybridisation means crossing between genetically dissimilar plants


(ii) Cross between two varieties is called as inter specific hybridization.


(iii) Introducing genes of desired character into a plant gives genetically modified crop


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

 6

Weeds affect the crop plants by

 8

Find out the correct sentence about manure

(i) Manure contains large quantities of organic matter and small quantities of nutrients.


(ii) It increases the water holding capacity of sandy soil.


(iii) It helps in draining out of excess of water from clayey soil.


(iv) Its excessive use pollutes environment because it is made of animal excretory waste.

 9

Cattle husbandry is done for the following purposes

(i) Milk Production (ii) Agricultural work


(iii) Meat production (iv) Egg production