Parasitism

Q. The cuckoo lays egg in the nest of host, crow and lets the host incubate them. This type of parasitism is called .

1. brood parasitism
2. ectoparasitism
3. endoparasitism

Q.

Are Phycomycetes parasites?

Q. Which adaptation of parasite has evolved to sustain their life in host body?

1. Loss of unnecessary sense organ
2. Presence of adhesive organ or suckers to cling at the host
3. Loss of digestive system
4. All the above

Q.

Statement 1: Brood parasitism in birds is a fascinating example of parasitism.

Statement 2: The parasitic bird eats the eggs in the nest of its host.

1. Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.

2. Both statements 1 and 2 are correct and statement 2 is not the explanation of statement 1.

3. Statement 1 is correct and statement 2 is incorrect

4. Both statements 1 and 2 are incorrect.

Q.

The relationship between the two organisms when grown individually (Section P) and grown together

(Section Q) is shown in the graph. The relationship is most likely to be

1. commensalism

2. parasitism

3. mutualism

4. protocooperation

Q. Cowbirds lay their eggs in the nests of smaller birds. The fast-developing cowbird chicks hatch first, then push the other baby chicks out of the nest as they hatch. The cowbird is classified as

1. Pathogen
2. Parasite
3. Mutualist
4. Commensal