List any two economically important products for humans obtained from Apis indica.

Ergot which is an important source of drug is obtained from ----.

List any four important components of poultry farm management.

List any three important characteristics of a population and explain.

Match the following list of bacteria and their commercially important products. {:("Bacterium","Product"),((i)"Aspergillus niger",(A)"Lactic acid"),((ii)"Acetobacter aceti",(B)"Butyric acid"),((iii)"Clostridium butylicum",(C)"Acetic acid"),((iv)"Lactobacillus",(D)"Citric acid"):} Choose the correct match.

Briefly explain any two common diseases in humans along with their symptoms and treatments.

Differentiate between any one pair of the following with two to three important points. Competitive exclusion and Coexistence.

State the concept of cross product of two vectors. How one obtains it's direction?

Mention any two socio-economic factors controlling population explosion.

Write notes on any three of the following, each with two to three important points Preparation of culture medium for tissue culture

List any four characteristics that are employed in human population census.