AP BIOLOGY

Previous
Next

ECOLOGY

ECOLOGICAL SUCCESSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Lichens and mosses are the first organisms to grow in an area. Over time, grasses and shrubs willgrow where these organisms have been. The grasses and shrubs are able to grow in the areabecause the lichens and mosses
A
synthesize food needed by producers in the area
B
are at the beginning of every food chain in a community
C
make the environment suitable for complex plants
D
provide the enzymes needed for plant growth
Explanation: 

Detailed explanation-1: -Tundra vegetation. The correct option is D. Explanation of correct option: Mosses and lichens are simple living organisms that grow on rocks and trees. Mosses are non-flowering plants known as bryophytes.

Detailed explanation-2: -Mosses and lichens are found in the tundra region.

Detailed explanation-3: -Mosses and lichens are the first creatures to colonise rocks and thus have a significant ecological impact. They breakdown rocks, preparing the substrate for the growth of higher plants. Mosses decrease the impact of rain and prevent soil erosion by forming dense mats on the soil.

Detailed explanation-4: -Simple species that can tolerate the often-harsh environment become established first. These organisms help enrich the soil, allowing other species to become established. The first organisms to appear in areas of primary succession are often mosses or lichens.

There is 1 question to complete.
Previous
Next