Microorganisms N, O and P were collected from water draining through a deep salt deposit.

The higher the chemical-analysis similarity score, the closer the match to characteristic molecules in that domain.

Microorganism	Cell shape	Nucleus	Similarity score for archaea	Similarity score for bacteria	Similarity score for eukaryota
N	Spherical	Absent	86	35	11
O	Spherical	Absent	32	89	14
P	Elongated	Present	18	22	91

A researcher proposes that N and O should be placed in the same domain because they have the same cell shape and both lack a nucleus. The researcher places P in a different domain.

Evaluate the researcher's proposed classification.

In your answer, give the domain for each microorganism.

Microorganisms N, O and P were collected from water draining through a deep salt deposit.

The higher the chemical-analysis similarity score, the closer the match to characteristic molecules in that domain.

Microorganism	Cell shape	Nucleus	Similarity score for archaea	Similarity score for bacteria	Similarity score for eukaryota
N	Spherical	Absent	86	35	11
O	Spherical	Absent	32	89	14
P	Elongated	Present	18	22	91

A researcher proposes that N and O should be placed in the same domain because they have the same cell shape and both lack a nucleus. The researcher places P in a different domain.

Evaluate the researcher's proposed classification.

In your answer, give the domain for each microorganism.

6.4 Classification of living organisms

Question 10

Markscheme

6.4 Classification of living organisms

Question 10

Markscheme

6.4 Classification of living organisms

Question 10

6.4 Classification of living organisms Questions

6.4 Classification of living organisms

Question 10

6.4 Classification of living organisms Questions