Subject Experts Solutions for Exercise 3: Critical Thinking

The hypersaline waters are found in?

Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time

The second trophic level of longer food chains in a lake is

Secondary succession takes place on/in

The figure given below represents the flow of materials between trophic levels. Which arrow is not correct

Microscopic aquatic organisms lacking locomotory ability and drifting with the water currents are

The figure shows a pyramid of energy which represents energy loss from a food chain to decomposers, upward transfer of energy to the next tropic level, and energy loss through respiration. All diagrams are in ${\mathrm{kKm}}^{-2}{\mathrm{Y}}^{-1}$

What is illustrated in this figure?

Which of the following is correct for r-selected species?

A) Small number of progeny with large size
B) Large number of progeny with small size
C) Large number of progeny with large size
D) Small number of progeny with small size