Question

the students are shown the following two structures.
structure one
lipid envelope
protein capsid
spikes
genome (rna)
structure two
cell membrane
cell wall
cytoplasm
ribosome
plasmid
nucleoid (dna)
flagellum
which statement best compares the two structures?
a. structure one is an amoeba, which is a living organism, and structure two is a virus, which is nonliving.
b. structure one is a virus and structure two is an amoeba; both are nonliving.
c. structure one is an amoeba and structure two is a bacterium; both are living organisms.
d. structure one is a virus, which is nonliving, and structure two is a bacterium, which is a living organism

Explanation:

1. Analyze Structure One: It has a protein capsid, lipid envelope, spikes, and RNA genome—these are viral structures. Viruses are nonliving (no cellular structure, can’t reproduce independently).
2. Analyze Structure Two: It has a cell wall, cell membrane, cytoplasm, ribosomes, nucleoid (DNA), flagellum—these are bacterial (prokaryotic) structures. Bacteria are living organisms (cellular, can reproduce, metabolize).
3. Evaluate options:

• Option A: Misidentifies Structure One (not amoeba) and Structure Two (not virus). Eliminate.
• Option B: Structure Two is bacteria (not amoeba), and viruses are nonliving, bacteria are living. Eliminate.
• Option C: Structure One is a virus (not amoeba). Eliminate.
• Option D: Correctly identifies Structure One as a nonliving virus and Structure Two as a living bacterium.

Answer:

D. Structure One is a virus, which is nonliving, and Structure Two is a bacterium, which is a living organism.