For good production of poultry birds,what kind of management practices are important?

Neem and turmeric powders are often used in grain storage.
$(i)$ What are they called?
$(ii)$ What is the purpose of using neem and turmeric?
$(iii)$ What are herbicides?

Find out the correct sentence:
$(i)$ Hybridisation means crossing between genetically dissimilar plants.
$(ii)$ Cross between two varieties is called as interspecific hybridisation.
$(iii)$ Introducing genes of desired character into a plant gives genetically modified crop.
$(iv)$ Cross between plants of two species is called as inter-varietal hybridisation.

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

Ram's teacher was showing the structure of a cell under a compound microscope,highlighting different parts like the cell wall,cell membrane,and nucleus. The teacher explained the difference between plant and animal cells,noting that the cell wall is found only in plant cells. Everyone observed the structure carefully and understood its structural importance.
$(a)$ What kind of qualities are shown by Ram?
$(b)$ Why is the cell called the structural and functional unit of life?

Poultry fowl are susceptible to the following pathogens: