ECOLOGY
ECOLOGICAL SUCCESSION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
They break down solid rock to form soil.
|
|
|
They produce seeds that repopulate the area.
|
|
|
They provide a habitat for small animals.
|
|
|
They provide shade for animals.
|
Detailed explanation-1: -During primary succession on land, fungi and lichen are the most common pioneer species. They break down minerals in the rock to form soil, which allow subsequent communities to colonize the area.
Detailed explanation-2: -Species that arrive first in a newly created environment (such as an island rising out of the sea) are called pioneer species, and they, through their interactions with one another, build a rather simple initial biological community.
Detailed explanation-3: -Lichens are considered as pioneer species in primary succession on rocks because they can easily grow on rocks where other plants cannot grow. They produce oxalic acid which induced the weathering of rocks and thus soil is formed.
Detailed explanation-4: -Fungi and lichen are the most common pioneer species in primary succession because they have the ability to break down minerals to form soil and subsequently develop organic matter. Once pioneer species colonize the area and start to build soil, other species like grasses begin to move in.