Reproduction in organisms — BIOLOGY STD 12 Science — Question

Which sequence of biomes did the ecologist most likely pass through while driving from the lowest elevation to the highest elevation of this mountain ?

The mass of living material at a trophic level at a particular time is called

Fish which eradicates the mosquito larva, is

The response of different organisms to the environmental rhythms of light and darkness is called:

The terminal globular part of penis is called:

Reproductive heaith is the well-being of

To obtain virus ­ free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?

High milk yielding varieties of cows are obtained by:

The testes of a great majority of mammals are typically enclosed in an extra abdominal sac, the scrotum. The temperature inside the scrotum is lower than that in the abdomen. What will happen if the temperature of the scrotum is artificially maintained to the level of abdominal temperature

A person meets with an accident and great loss of blood has occurred. There is no time to analyse his blood group. It is safe to transfer blood of group