Which of the following statements of trophic levels is not true?
A) It takes less energy to feed a creature at the top of the food chain.
B) An animal can be both a secondary and primary consumer.
C) Herbivores are consumers.
D) Decomposers can be primary consumers.
E) All of the above are true.
Question 2
The units of density for a liquid are usually expressed as ________.
A) g/mL
B) g/L
C) mg/mL
D) mg/L