What Is Pioneer Community

Q. A : Bryophyta, in general, are of little ecological importance.
B. Mosses reduce the impact of falling rain.

1. Both A and B are correct
2. Both A and B are incorrect
3. A is correct but B is incorrect
4. A is incorrect but B is correct

Q.

Species which are the first to colonize previously disrupted or damaged ecosystems are called ___ species

Q.

How old is the oldest lichen?

Q. Which of the following include the pioneer species

1. Bacteria
2. Algae
3. Lichens
4. All of the above

Q. With respect to the given assertion and reason, choose rhe right option

Assertion [A]: Lichens are the primary colonisers of bare rocks.
Reason [R]: Lichens grow luxuriently in moist tropical areas.

1. Both A and R are true and R explains A
2. Both A and R are true but R does not explain A
3. A is true and R is false
4. Both A and R are false

Q.

differentiate between climax community and pioneer community.

Q. Explain parasitism and co-evolution with the help of one example of each.

Q. With respect to the given assertion and reason, choose rhe right option

Assertion [A]: Lichens are the primary colonisers of bare rocks.
Reason [R]: Lichens grow luxuriently in moist tropical areas.

1. Both A and R are true but R does not explain A
2. Both A and R are false
3. A is true and R is false
4. Both A and R are true and R explains A

Q. The species of plants, that play a vital role in controlling the relative abundance of other species in a community are called as

1. Edge species
2. Link species
3. Keystone species
4. Pioneer species
5. Successional species

Q. With respect to the given assertion and reason, choose rhe right option

Assertion [A]: Lichens are the primary colonisers of bare rocks.
Reason [R]: Lichens grow luxuriently in moist tropical areas.

1. Both A and R are true and R explains A
2. Both A and R are true but R does not explain A
3. A is true and R is false
4. Both A and R are false

Q. The first to colonise a barren area (rock) are

1. ferns
2. mosses
3. diatoms
4. lichens

Q. Plant community development is termed as

1. Corrosion
2. Erosion
3. Succession
4. Possesion

Q. Which of the following bird you will call most successfully evolved?

1. Lays 9 eggs, 9 hatch, 3 reproduce
2. Lays 2 eggs, 2 hatch and 2 reproduce
3. Lays 5 eggs, 5 hatch, 5 reproduce
4. Lays 10 eggs, 5 hatch and 4 reproduce

Q. Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Why or why not?