Question 1

Which of the following is prokaryotic?

Accepted Answer

Archaea are prokaryotic organisms, meaning they lack a nucleus and membrane-bound organelles, unlike the other options which are eukaryotic.

Question 2

Systematics reassigns phylogenetic placement based on

Accepted Answer

Systematics reassigns phylogenetic placement based on new information about genetic relationships, as it focuses on understanding the evolutionary relationships between organisms using genetic data.

Question 3

Which biologist first proposed that all organisms share a common ancestry?

Accepted Answer

Charles Darwin proposed the theory of evolution and common ancestry in his book "On the Origin of Species" published in 1859.

Question 4

If genetic studies reveal that a population has genetic sequences in common with two closely related species but has no unique sequences of its own, then

Accepted Answer

If a population shares genetic sequences with two closely related species but lacks unique sequences, it is likely a hybrid of the two species, as it does not have distinct genetic markers to classify it as a separate species.

Question 5

Genetics studies of human populations have revealed that

Accepted Answer

Humans have relatively low genetic variation compared to other mammals, which is consistent with the idea that modern humans originated from a small population.

Question 6

Which of the following groups is composed of eukaryotic organisms?

Accepted Answer

Fungi are eukaryotic organisms, meaning they have a nucleus and other membrane-bound organelles.

Question 7

Why do some biologists NOT consider reptiles to be a monophyletic group?

Accepted Answer

The answer of Why do some biologists NOT consider reptiles...

Question 8

Modern systematics constructs clades and evolutionary relationships on the basis of

Accepted Answer

Modern systematics primarily uses genetic similarities to construct clades and determine evolutionary relationships, as genetic data provides a more accurate and detailed understanding of the evolutionary history and relatedness of organisms.

Question 9

What should biologists do when two similar organisms that were originally thought to be separate species are found to interbreed freely and produce normal offspring whenever they live in the same habitat?

Accepted Answer

When two organisms interbreed freely and produce viable offspring, they are typically considered a single species according to the biological species concept.

Question 10

An organism with a nucleus would be placed in which domain?

Accepted Answer

An organism with a nucleus would be placed in the Eukarya domain because eukaryotes are organisms that have a nucleus and other membrane-bound organelles.

Question 11

A modern system of classification gives the category name domain to

Accepted Answer

Eukarya is the domain that includes all eukaryotes, which are organisms whose cells have a nucleus and other membrane-bound organelles.

Question 12

Based on evolutionary lineage, fungi and animals belong to the same

Accepted Answer

Fungi and animals both belong to the same clade called Opisthokonta, which is a broad group of eukaryotes.

Question 13

Which of the following is NOT a monophyletic group?

Accepted Answer

A monophyletic group includes an ancestor and all its descendants. The family Semionotidae is not monophyletic if it includes species that do not share a common ancestor.

Question 14

Which group contains mostly unicellular, eukaryotic organisms?

Accepted Answer

Protists are mostly unicellular, eukaryotic organisms, unlike the other groups listed which are either multicellular or prokaryotic.

Question 15

Before 1970, what was the basis for the biological classification system?

Accepted Answer

Before 1970, the biological classification system was primarily based on two kingdoms: Animalia and Plantae.

Question 16

Who introduced the "two- part" system (genus and species) that biologists use to name organisms?

Accepted Answer

Linnaeus introduced the "two-part" system of naming organisms, also known as binomial nomenclature, in his work Systema Naturae. He assigned a unique genus and species name to each organism, providing a standardized way of identifying and classifying living things.

Question 17

Evolutionary relationships among organisms are most likely to be revised at the level.

Accepted Answer

The answer of Evolutionary relationships among organisms are most likely...

Question 18

Which of the following is a prokaryote?

Accepted Answer

Vibrio cholerae is a bacterium, and bacteria are prokaryotes, which means they lack a nucleus and other membrane-bound organelles.

Question 19

Which of the following groups is composed of eukaryotic organisms?

Accepted Answer

Protists are eukaryotic organisms, meaning they have cells with a nucleus and other membrane-bound organelles. Monera, Archaea, and Bacteria are prokaryotic, lacking a true nucleus.

Question 20

The greatest genetic diversity among humans is found between some populations.

Accepted Answer

African populations have the greatest genetic diversity due to the longer period of human habitation and evolutionary history on the continent.

Quiz 19: Systematics: Seeking Order Amid Diversity

Which of the following is prokaryotic?

Systematics reassigns phylogenetic placement based on

Which biologist first proposed that all organisms share a common ancestry?

If genetic studies reveal that a population has genetic sequences in common with two closely related species but has no unique sequences of its own, then

Genetics studies of human populations have revealed that

Which of the following groups is composed of eukaryotic organisms?

Why do some biologists NOT consider reptiles to be a monophyletic group?

Modern systematics constructs clades and evolutionary relationships on the basis of

What should biologists do when two similar organisms that were originally thought to be separate species are found to interbreed freely and produce normal offspring whenever they live in the same habitat?

An organism with a nucleus would be placed in which domain?

A modern system of classification gives the category name domain to

Based on evolutionary lineage, fungi and animals belong to the same

Which of the following is NOT a monophyletic group?

Which group contains mostly unicellular, eukaryotic organisms?

Before 1970, what was the basis for the biological classification system?

Who introduced the "two- part" system (genus and species) that biologists use to name organisms?

Evolutionary relationships among organisms are most likely to be revised at the level.

Which of the following is a prokaryote?

Which of the following groups is composed of eukaryotic organisms?

The greatest genetic diversity among humans is found between some populations.