Question

4 based on the classification of the three organisms described in the passage, which of the following statements is not supported by the evidence? (1) the organism from the temperate forest is part of the domain eukarya because its cells contain a nucleus and complex organelles. (2) the organism found in the ocean trench is prokaryotic because it lacks membrane - bound organelles and has a simpler internal structure. (3) the organism from the volcanic hot spring is multicellular and performs photosynthesis using chloroplasts found in each cell. (4) the biologist’s classification reflects key differences in cellular complexity and evolutionary history across the three domains of life.

Explanation:

1. Statement (1): Temperate forest organisms (like plants, fungi, animals) are eukaryotes, which have nuclei and complex organelles. This is supported.
2. Statement (2): Ocean trench prokaryotes lack membrane-bound organelles and have simple internal structures, which matches prokaryotic traits. This is supported.
3. Statement (3): Organisms from volcanic hot springs are typically prokaryotes (archaea or bacteria), which are unicellular and lack chloroplasts. Photosynthetic prokaryotes use internal membranes, not chloroplasts. This statement is not supported.
4. Statement (4): Three-domain classification (Bacteria, Archaea, Eukarya) is based on cellular complexity and evolutionary history differences. This is supported.

Answer:

(3) The organism from the volcanic hot spring is multicellular and performs photosynthesis using chloroplasts found in each cell.