Question
The diagram shows the energy flow between five “sinks” in a terrestrial ecosystem.
In a typical terrestrial ecosystem, which trophic level would have the highest biomass?
Autotrophs
Primary consumers
Secondary consumers
Detritus feeders
Answer/Explanation
Ans: A
Question
Which process is an example of catabolism?
A.Translation of mRNA
B. Replication of DNA
C. Hydrolysis of protein
D. Synthesis of a disaccharide</p
Answer/Explanation
>Ans: C
Question
The magnification of the micrograph is 2000x
What is the maximum diameter of the nucleus in the cell labelled X?
A. 10 μm
B. 10 nm
C. 20 μm
D. 20 nm
Answer/Explanation
Ans: A
Question
Two cells have the following characteristics.
Which deduction is supported by this information?
A. Both cells are from plants.
B. Cell I is more complex than cell II.
C. Cell II is an animal cell.
D. Cell I is prokaryotic.
Answer/Explanation
Ans: D