OBJECTIVE FORESTRY

FORESTRY

FOREST ECOLOGY AND ECOSYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In an ecosystem, different organisms interact with each other. What evidence from the passage supports this statement?
A
Plants use sunlight, water, and carbon dioxide in a process called photosynthesis.
B
Forest ecosystems cover about a quarter, or one-fourth, of the total land surface in the world.
C
Producers are living things that can make their own energy out of non-living resources.
D
A deer decomposing in the soil provides food for bacteria and nutrients for plants to grow.
Explanation: 

Detailed explanation-1: -An ecosystem consists of a community of organisms together with their physical environment. Ecosystems can be of different sizes and can be marine, aquatic, or terrestrial. Broad categories of terrestrial ecosystems are called biomes.

Detailed explanation-2: -Based on the information in the passage, what do all ecosystems have in common? All ecosystems are home to living things that interact with each other.

Detailed explanation-3: -Species interactions within ecological webs include four main types of two-way interactions: mutualism, commensalism, competition, and predation (which includes herbivory and parasitism). Because of the many linkages among species within a food web, changes to one species can have far-reaching effects.

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