Assertion : All birds, except the ones like koel (cuckoo) build nests for retiring and taking rest during night time (day time for noctumal)
Reason : Koel lays its eggs in the nests of tailor bird.

Asserion : All birds, except the one like koel (cuckoo) build nests for retiring and taking rest during night time ( day time for nocutrnal) Reason : Koel lays its eggs in the nests of tailor bird

These questions consist of two statement each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses. A. If both Assertion and Reason are true and Reason is a correct explanation of the Assertion. B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. C. If Assertion is true but Reason is false. D. If both Assertion and Reason are false. Assertion: All birds except the ones like Koel build nests for retiring and taking rest during night (day time for nocturnal birds). Reason: Koel lays the eggs in the nest of tailor bird

Assertion Koel (cuckoo) build nests for retiring and taking rest during night time and day time for nocturnal birds. Reason Koel lays egg in the nest of tailor bird.

Assertion : Koel does not build nest for egg laying. Reason : Koel lays its eggs in the nest of tailor bird.

Assertion : Koel does not build nest for agg laying. Reason : Koel lays its aggs in the nest of tailor bird.

(A) : Brood parasitism is a social parasitism among birds. (R) : Koel lays its eggs in the crow's nest.

Study the following Crows make their nests high up on a tree using all kinds of things, even pieces of wood and wires. A clever bird who does not make its own nest lays eggs in a crow's nest. The poor crow batches them along with its own eggs, Which bird is this?

Read the following statements and select the correct option. Statement 1: Brood parasitism in birds is an example of parasitism in which the parasitic bird lays its eggs in the nest of its host and the host incubates them. Statement : During the course of evolution, the eggs of the parasite bird have evolved to resemble the host's eggs in size and colour to reduce the chances of the host bird detecting the foreign eggs and removing them from the nest.

Read the following statements and select the correct option. Statement 1: Brood parasitism in birds is an example of parasitism in which the parasitic bird lays its eggs in the nest of its host and the host incubates them. Statement : During the course of evolution, the eggs of the parasite bird have evolved to resemble the host's eggs in size and colour to reduce the chances of the host bird detecting the foreign eggs and removing them from the nest.

Which of the following statement/s is/ are WRONG ? I. Mammals from colder climates generally have shorter ears and limbs to minimise heat loss. II. The UV component of the spectrum is harmful to many organisms. III. The tiger census in our national parks and tiger reserves is often based on actual headcounts. IV. Some desert plants like Opuntia,have no leaves - they are reduced to spines. V. In brood parasitism , the parasitic bird lays its eggs in the nest of its host and does not allow the nest incubate them.