What Is Pioneer Community

Q. The first organisms to colonise the bare, lifeless substrate are known as .

1. pioneer species
2. intermediate species
3. climax species

Q. Match the following and select the correct option :

(a) Earthworm (i) Pioneer species
(b) Succession (ii) Detritivore
(c) Ecosystem service (iii) Natality
(d) Population growth (iv) Pollination

1. a - (i) b - (ii) c - (iii) d - (iv)
2. a - (iv) b - (i) c - (iii) d - (ii)
3. a - (iii) b - (ii) c - (iv) d - (i)
4. a - (ii) b - (i) c - (iv) d - (ii)

Q. Match the following and select the correct option :

(a) Earthworm (i) Pioneer species
(b) Succession (ii) Detritivore
(c) Ecosystem service (iii) Natality
(d) Population growth (iv) Pollination

1. a - (i) b - (ii) c - (iii) d - (iv)
2. a - (iv) b - (i) c - (iii) d - (ii)
3. a - (iii) b - (ii) c - (iv) d - (i)
4. a - (ii) b - (i) c - (iv) d - (ii)

Q. Which of the following would appear as the pioneer organisms on bare rocks ?

1. Liverworts
2. Lichens
3. Mosses
4. Green algae

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

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. Which of the following include the pioneer species

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

Q.

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

Q. Which of the following would appear as the pioneer organisms on bare rocks ?

1. Lichens
2. Liverworts
3. Mosses
4. Green algae

Q. The first organisms to colonise the bare, lifeless substrate are known as .

1. pioneer species
2. intermediate species
3. climax 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