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प्रश्न
Define cross-breeding.
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उत्तर
Breeding between a superior male of one breed with a superior female of another breed is known as cross-breeding.
संबंधित प्रश्न
Which one of the following is an Italian species of honey bee?
Differentiate the following.
Pollen and Nectar
Name the following:
The largest bee in the colony.
What are the main duties of a worker bee?
Paddy, maize, green gram and black gram are ______ crops.
______ and ______ are supplied by air to plants.
______ nutrients are needed in small quantity for plants and are called ______.
______ is an enzyme present in Honey.
______ is a nodulating type of microorganism associated symbiotically with the root of legume plants.
A farmer was facing the problem of low yield from his farm. He was advised to keep a beehive in the vicinity. Why? How would the beehive help in enhancing yield?
