Which of the following is not an outcome of ecological succession?
There is a progressive change in species structure, organic matter and energy flow
The climax stage consists of a comparatively long lasting species composition
There is no dynamic equilibrium between the community and habitat in the climax stage
Communities occurring later in the sequence of succession are more complex
There are fewer dominant species in the late stages of succession
Correct answer is A
No explanation has been provided for this answer.
An association between two organisms in which both benefit is called
parasitism
commensalism
symbiosis
Predation
competition
Correct answer is C
No explanation has been provided for this answer.
Which of these is not applicable to the circulation of water in nature?
Water removed from oceans are permanently lost
Water constantly evaporates from the seas, rivers, lakes, and soil
Water vapour rises. cools, condenses, and precipitates as rain and dew
Water is absorbed by plants and animals from their external environment
Plants lose water by transpiration and decay
Correct answer is A
No explanation has been provided for this answer.
Which of these statements about the food chain is incorrect?
Animals in the chain are consumers
A food chain usually begins with a green plant
All organisms in a food chain are animals
Living things are dependent on one another
The food chain involves energy transfer in an ecosystem
Correct answer is C
No explanation has been provided for this answer.
In a food chain the position occupied by an organism is called
the trophic level
energy level
the feeding level
the habitat level
niche
Correct answer is A
No explanation has been provided for this answer.