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

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12.Ecosystem

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

Mosses

Green algae

Lichens

Liverworts

(NEET-2016)

Solution

(c) : The bare rocky habitat is extremely hostile to living beings. There is no water, as the substratum does not absorb rain water. There is no nutrient holding mechanism. Plants cannot grow on these rocks. The first inhabitants or pioneers of such a habitat are usually lichens as they are resistant to desiccation and extreme temperatures.

Standard 12

Biology

An ecosystem, such as an aquarium, is selfsustaining if it involves the interaction between organisms, a flow of energy, and the presence of

normal

(AIIMS-2009)

An ecosystem which can be easily damaged but can recover after some time if damaging effect stops will be having

normal

(AIPMT-2004)

The sphere of living matter together with water, air and soil on the surface of earth is

normal

(AIIMS-1998)

Identify $Y$ and $Z$ from above figure

normal

What will be the $P/R$ ratio of a climax community and a pioneer community. What explanation could you offer for the changes seen in $P/R$ ratio of a pioneer community and the climax community.

normal

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

Solution

Similar Questions

An ecosystem, such as an aquarium, is selfsustaining if it involves the interaction between organisms, a flow of energy, and the presence of

An ecosystem which can be easily damaged but can recover after some time if damaging effect stops will be having

The sphere of living matter together with water, air and soil on the surface of earth is

Identify $Y$ and $Z$ from above figure

What will be the $P/R$ ratio of a climax community and a pioneer community. What explanation could you offer for the changes seen in $P/R$ ratio of a pioneer community and the climax community.

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