Which of the following statements is correct about the hierarchy of the taxonomic system currently used to classify organisms?

Question 19 options:

Many different classes of organisms belong to the same genus.


Many different kingdoms of organisms belong to the same phylum.


Many different orders of organisms belong to the same species.


Many different families of organisms belong to the same order.







Which kingdom includes an organism that can survive by photosynthesis in the presence of light or by consuming organic material in dark conditions?

Question 18 options:

Animalia


Protista


Plantae


Fungi






Examine the images here for two tree species. Which taxonomic grouping defines the commonality of these two trees?



Question 17 options:

These trees share the same genus but not the same species.


The trees share all of the taxa involved in classification.


These trees share the same genus but not the same phylum.


These trees share the same species but not the same genus.






Scientists often use a cladogram such as the one below to illustrate evolutionary relationships.



Which is the best explanation for separating reptiles from mammals?

Question 14 options:

the presence of an amniotic membrane in reptiles that is not found in mammals


the presence of hair in reptiles that is not found in mammals


the presence of an amniotic membrane in mammals that is not found in reptiles


the presence of hair in mammals that is not found in reptiles






Scientists often use a cladogram such as the one below to illustrate evolutionary relationships.



Which is the best explanation for separating reptiles from mammals?

Question 14 options:

the presence of an amniotic membrane in reptiles that is not found in mammals


the presence of hair in reptiles that is not found in mammals


the presence of an amniotic membrane in mammals that is not found in reptiles


the presence of hair in mammals that is not found in reptiles






A group of scientists discovered a new organism that is composed of many cells, gets its nutrition from decaying organisms, and has cell walls. To what kingdom would the new organism belong?

Question 12 options:

Plantae


Animalia


Fungi


Protista






The following cladogram shows the evolutionary relationships among five types of birds.



According to this cladogram, oystercatchers are more closely related to flamingos than to penguins.

Which of the following statements provides the best justification for this relationship?

Question 10 options:

The branch of the cladogram with oystercatchers is closer to the branch with flamingos than to the branch with penguins.


Both oystercatchers and flamingos are less closely related to the outgroup than penguins are.


Oystercatchers share a more recent common ancestor with flamingos than with penguins.


Oystercatchers share a common ancestor with flamingos but not with penguins.






Which statement best explains why a third domain, Archaea, was added to the original two domains of Bacteria and Eukarya?

Question 3 options:

Scientists discovered that some prokaryotes have cell walls.


Scientists discovered that eukaryotes have cell walls.


Scientists discovered that some prokaryotes live in extreme environments.


Scientists discovered that eukaryotes are unicellular.






Both plants and blue-green algae are photosynthetic but are classified as separate kingdoms. Which statement identifies a characteristic that distinguishes blue-green algae from plants?

Question 2 options:

Plants lack membrane-bound organelles and blue-green algae contain membrane-bound organelles.


Plants have specialized tissues and organs and blue-green algae do not.


Blue-green algae use their chlorophyll differently from plants.


Blue-green algae are better than plants at moving from place to place.