STD 12 - 7. human health and disease — Biology STD 12 Science — Question

Amongst the animal groups given below, which one has the highest percentage of endangered species?

First human like hominid is known as

Unisexuality of flowers prevents:

Select the correct pair.

Non-essential for seed germination is

In the ecosystem they placed in third trophical level.

In those plants whose pulp is of economical importance, they are generally propagated by vegetative means because:

Which of the following statements does not hold true for restriction enzyme?

In a breeding experiment, the selected male parent is diploid and the female parent is tetraploid. What will be the ploidy level of the endosperm that will develop after double fertilisation?