[Campbell Biology P.642] According to Figure 28.1 and its caption, which statement about the... | Practice Question

According to Figure 28.1 and its caption, which statement about the organisms shown in the main image is correct?

  • A: All seven organisms shown are prokaryotes.
  • B: The large organism and the smaller, irregular shapes are all protists, but the organism above the scale bar is a prokaryote.
  • C: The large organism is a eukaryote, and all six smaller organisms are prokaryotes.
  • D: All organisms displayed are protists, representing their diverse forms.

Explanation

Figure 28.1's caption clearly states: 'the only prokaryote is the organism immediately above the scale bar—the rest are members of diverse, mostly unicellular groups of eukaryotes informally known as protists.' This means the large organism and the other five small, irregular shapes are protists, while only the one directly above the scale bar is a prokaryote.