1. Queen bee is a functional female bee present in each bee hive and feeds on Royal Jelly.
2. Its sole function is to lay eggs throughout its life span.
3, The virgin queen bee mates only once in her life.

The types of poultry farming are Free range farming, Organic method, Yarding method, Battery cage method and Furnished cage method.

Cattles are classified into three groups based on the purpose they serve to man.
1. Dairy breeds or Milch breeds: They are high milk yielders with extended lactation. Eg: Sindhi, Gir, Sahiwal, Jersey, Brown Swiss, Holstein cattle.
2. Draught purpose breeds: Bullocks are good for draught purpose. Eg: Kangayam, Malvi.
3. Dual Purpose breeds: Cows are meant for yielding more milk and bullocks are used for better drought purpose. Eg: Ongole, Hariana.

1. Feed on zooplankton and phytoplankton, decaying weeds, debris and other aquatic plants.
2. Can tolerate O₂ variations in water.
3. Can be transported from one place to other easily.
4. They are highly nutritive and palatable.

1 Lac cut from the host plant is called 'Stick lac'.
2. The lac present on the twig is scraped and collected.
3. After grinding, the unnecessary materials like dusts and fine particles are removed.
4. The resultant lac is called 'seed lac'.
5. The seed lac is sun dried and then melted to produce 'shellac'.
Uses:
1. It is used as sealing wax.
2. It is used as filling material for gold ornaments.
3. It is used in preparation of shoe and leather polishes.

1. Lac is largely used as a sealing wax and adhesive for optical instruments. It is used in electric industry, as it is a good insulator.
2. It is used in preparations of shoe and leather polishes and as a protective coating of wood.
3. It is used in laminating paper board, photographs, engraved materials and plastic moulded articles.
4. Used as a filling material for gold ornaments.

Nutritive values of fishes:
1. Fishes farm a rich source of protein food and provide a good staple food to tide over the nutritional needs of man.
2. Fish species such as sardines, mackerel, tuna, herrings have high amino acids concentrations particularly histidine which is responsible for the meaty flavor of the flesh.
3. It is rich in fat such as omega 3 fatty acids. Minerals such as calcium, magnesium, phosphorus, potassium, iron, manganese, iodine and copper.
4. Some of the by-products are fish oil, fish meal, Isinglass.

(i) Worker bees are sterile females and smallest
(ii) They live in a chamber called "Worker Cell' and they perform different types of work in her life span.
(iii) During the first life span, she becomes a nurse bee attending indoor duties such as secretion of royal jelly, prepare bee bread to feed the larvae, take care of the queen and drones, secretes beeswax, builds combs, clean and fans the bee hives.
(iv) In the second life span she becomes soldier and guards the bee hive. She searches and gathers the pollen, nectar, propolis and water.

Advantages of Vermicomposting:
1. Vermicompost is rich in essential plant nutrients.
2. It improves soil structure texture, aeration, and water holding capacity and prevents soil erosion.
3. Vermicompost is a rich in nutrients and an ecofriendly amendment to soil for farming and terrace gardening.
4. It enhances seed germination and ensures good plant growth.

Economic importance of prawn:
(i) Prawn is a very tasty proteinaceous food.
(ii) Economic growth can be achieved by prawn at a low cost.
(iii) It is profitable to cultivate prawns in fresh water at a low cost.
(iv) By Exporting prawns can also bring a lot of foreign currency to the country.