In a food chain, plants are
Salam Academy Original Practice · Proposed mark scheme
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12 questions
The original source of energy for almost all food chains is
Salam Academy Original Practice · Proposed mark scheme
Organisms that break down dead material are
Salam Academy Original Practice · Proposed mark scheme
In grass → rabbit → fox, the fox is the
Salam Academy Original Practice · Proposed mark scheme
Plants contain kJ; herbivores receive kJ. Calculate the efficiency of transfer.
Salam Academy Original Practice · Proposed mark scheme
A trophic level has kJ. With efficiency, how much energy reaches the next level?
Salam Academy Original Practice · Proposed mark scheme
Most energy lost between trophic levels is lost through
Salam Academy Original Practice · Proposed mark scheme
A pyramid of numbers can be inverted because
Salam Academy Original Practice · Proposed mark scheme
Which type of pyramid is always pyramid-shaped?
Salam Academy Original Practice · Proposed mark scheme
In a food chain, arrows show
Salam Academy Original Practice · Proposed mark scheme
Food chains rarely have more than five trophic levels because
Salam Academy Original Practice · Proposed mark scheme
It is more energy-efficient for humans to eat crops than to eat animals fed on crops because
Salam Academy Original Practice · Proposed mark scheme