Question

A scientist discovers a unicellular organism when examining a pond sample under a microscope. Which of the following explanations would provide a correct claim with supporting evidence to determine to which kingdom the organism would belong?

Claim: The organism is a protist.
Evidence: The organism is unicellular, prokaryotic, and lives in a moist environment.
Claim: The organism is a protist.
Evidence: The organism is multicellular, eukaryotic, and reproduces by binary fission
Claim: The organism is a bacteria cell.
Evidence: The organism is unicellular, eukaryotic, and is found in a moist environment.
Claim: The organism is a bacteria cell.
Evidence: The organism is unicellular, prokaryotic, and reproduces by binary fission.

Answer 1

Answer:

Claim: The organism is a bacterial cell.

Evidence: The organism is unicellular, prokaryotic, and reproduces by binary fission.

Explanation:

The organism cannot be a protist based on the evidence.  Protists are unicelluar, eukaryotic, and live in a moist environment. Binary fission is the primary way that prokaryotic cells reproduce, so that does not apply to protists.

The organism is a bacterial cell, but bacterial cells are prokaryotic, not eukaryotic.  They can be found in moist environments but that is not a defining factor of bacteria, like it is for protists. Bacterial cells are unicellular.

Answer 2

Answer:

claim : the organism is a bacterial cell

Explanation:

evidence : the organism is unicellular, prokaryotic, and reproduces by binary fission