Question

(b) part b
select two factors that are responsible for the inefficiency of energy transfer from one trophic level to another.
a carnivores obtain energy from consumers only.
b some parts of organisms are not eaten by consumers.
c organisms lose energy to the environment as heat.
d omnivores get energy from producers and consumers.

Explanation:

• Option A: Carnivores' energy source (only consumers) doesn't relate to energy transfer inefficiency between trophic levels.
• Option B: If some organism parts aren't eaten, that energy isn't transferred to the next trophic level, contributing to inefficiency.
• Option C: Energy lost as heat (during respiration, etc.) means not all energy is available for the next trophic level, causing inefficiency.
• Option D: Omnivores' energy sources (producers and consumers) don't explain energy transfer inefficiency between trophic levels.

So the two factors are B and C.

Answer:

B. Some parts of organisms are not eaten by consumers.
C. Organisms lose energy to the environment as heat.