The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the:

Which of the following features is not present in Penplaneta americana?

A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called:

Which of the following is wrongly matched in the given table?
Microbe - Product - Application

In mammals, which blood vessel would normally carry the largest amount of urea?

Pick out the correct statements:
(a) Haemophilia is a sex-linked recessive disease
(b) Down’s syndrome is due to aneuploidy.
(c) Phenylketonuria is an autosomal recessive gene disorder.
(d) Sickle cell anaemia is an X – linked recessive gene disorder.

Which of the following guards the opening of the hepatopancreatic duct into the duodenum?

Microtubules are the constituents of:

The coconut water from tender coconut represents:

Tricarpellary, syncarpous gynoecium is found in flowers of: