Choose the most appropriate statement that matches each term.

-Rickettsia prowazekii

A) a substance that occurs only or predominantly in cells of a specific type.
B) simple transitional forms between early organic compounds and the first living cells
C) a bacterial species thought to be a close relative of the bacteria ancestral to mitochondria
D) first organisms with the noncyclic pathway of photosynthesis
E) bacteria able to withstand high levels of mutation-causing radiation
F) offered support for endosymbiosis
G) dome-shaped fossil remains of photoautotrophic bacteria (some nonfossil structures also form).
H) RNAs that function as enzymes
I) earliest known organism that can be assigned to a modern group

Question

Choose the most appropriate statement that matches each term.

-Rickettsia prowazekii

A) a substance that occurs only or predominantly in cells of a specific type.
B) simple transitional forms between early organic compounds and the first living cells
C) a bacterial species thought to be a close relative of the bacteria ancestral to mitochondria
D) first organisms with the noncyclic pathway of photosynthesis
E) bacteria able to withstand high levels of mutation-causing radiation
F) offered support for endosymbiosis
G) dome-shaped fossil remains of photoautotrophic bacteria (some nonfossil structures also form).
H) RNAs that function as enzymes
I) earliest known organism that can be assigned to a modern group

Quizplus · Accepted Answer

Rickettsia prowazekii is a bacterial species that is closely related to the bacteria ancestral to mitochondria.

Answer: I
 There is no specific term in the list that matches earliest known organism that can be assigned to a modern group. However, the closest match would be option I, which refers to the earliest known organism.

Answer: F
 The term that matches with the statement "offered support for endosymbiosis" is F, as endosymbiotic theory is supported by the fact that mitochondria and chloroplasts originated as free-living bacteria that were engulfed by other cells.

Note: The other terms on the list do not match with any of the given statements.

Choose the Most Appropriate Statement That Matches Each Term