AP BIOLOGY

ECOLOGY

ECOLOGICAL SUCCESSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
starts with bare rock followed by lichen or moss
A
primary succession
B
secondary succession
C
aquatic succession
D
both primary and secondary succession
Explanation: 

Detailed explanation-1: -Primary succession starts with bare rock, with lichens and moss. Fire is an example of primary succession.

Detailed explanation-2: -Primary succession begins with soil formation. The first stage of succession involves pioneer species. In primary succession, pioneer plants are those that can grow without soil, such as lichens. Lichens begin breaking down a rock.

Detailed explanation-3: -Primary succession occurs when new land is formed or bare rock is exposed, providing a habitat that can be colonized for the first time.

Detailed explanation-4: -Primary succession begins with the appearance of pioneer species – lichen, mosses, and fungi – all organisms that can grow on rocks and exposed land. These are small, simple organisms that can survive harsh conditions, fix inorganic carbon and nitrogen into usable nutrients and accelerate the process of weathering.

Detailed explanation-5: -The first organisms to appear in areas of primary succession are often mosses or lichens. These organisms are known as pioneer species because they are the first species present; pioneer species must be hardy and strong, just like human pioneers.

There is 1 question to complete.