Speciation

Science

2 plays

10 questions

Isabelle

•over 6 years ago

Question 1

Multiple Choice

1 point

Which of these actually evolves?

A.individuals

B.populations

C.communities

D.mutations

Question 2

Short Answer

1 point

Which organism from the figure is most distantly related to the others?

Question 3

Short Answer

1 point

What kind of animal would a "vulpes velox" be? A type of ... ?

Question 4

Multiple Choice

1 point

True or false? "All organisms that belong to the order Carnivora also belong to the phylum Chordata."

A.True

B.False

Question 5

Multiple Choice

1 point

From the information in the table, which two animals are most closely related?

A.House cat and Red fox

B.Red Fox and Dog

C.Dog and Wolf

D.Dog and Gopher

Question 6

Multiple Choice

1 point

True or false? "The species Ursus Maritimus and Ursus Arctos are closely related."

A.True

B.False

Question 7

Multiple Choice

1 point

What determines which traits will be passed on to the next generation in the greatest frequency?

A.Mendelian genetics of the trait

B.Random mutations in the trait

C.The species in which the trait occurs

D.The fit of the trait to the environment

E.Non-random mutations in the trait

Question 8

Multiple Choice

1 point

Natural selection is best described as ...

A.able to generate new traits that better suit the species

B.increasing the perfection of a species

C.working on existing variation of traits to favor those better suited to the organism's environment

D.causing the death of a significant proportion of the population

E.driving the species toward an eventual endpoint sometime in the future

Question 9

Multiple Choice

1 point

Evolution is ....

A.a rare event

B.currently occurring ONLY in scientific laboratories

C.constantly occurring at the same rate in ALL organisms

D.a process that occurs as a result of differences in reproductive fitness

E.a process that occurred only in the past

Question 10

Short Answer

1 point

Biologically, one could use anatomical features, behavior, or molecular similarities and differences in constructing a cladogram. Molecularly, one could look at the number of mutations in a common strand of DNA. Another way would be to compare strings of amino acids and note differences in the order of the amino acids. Cytochrome c is a protein located in the mitochondria of cells involved with cellular respiration. Below is a table showing the amino acid sequences for cytochrome c in several organisms. The more amino acids that an organism has in common, both type and order, indicates the closer the relationship. The same is true for nucleotides. Compare the biochemical data in the figure. Which organism is most closely related to the lizard?