QUESTION 3 Which of the following would NOT be a good method for sorting out the

Question

QUESTION 3

Which of the following would NOT be a good method for sorting out the evolutionary relationships between a parrot, gorilla, hippopotamus, starfish, and catfish?

comparing the skeletal anatomy

examining the habitat in which these organisms live

looking at embryos for common developmental patterns

comparing the nucleotide sequence divergence of selected genes

all of the above would provide useful information

10 points   

QUESTION 4

Which of these habitats should have the highest number of endemic species (found there and nowhere else).

grasslands of the central United States

Hawaiian islands

Amazonian rainforest basin

Mississippi river

10 points   

QUESTION 5

Darwin's concept of evolution "the theory of descent with modification through variation and natural selection" can be demonstrated by which of the following examples?

A giraffe stretches his neck to reach higher branches. The exercise of stretching up strengthens the muscles in the neck and legs. This ability to stretch is also seen in the giraffe's offspring.

A monkey accidently drops her fruit in the salty water of a bay, she recovers the fruit and eats it. She discovers that the fruit is cleaner and tastes better after it has been in the salty water. She continues to wash fruit in the bay before eating. Her offspring see what she has done and also wash their fruit in the salty water. Soon the whole population is washing their fruit

Several turtles hatch from a clutch of eggs buried in the sand on a beach. One of the turtles is the color of the sand, the others are darker in color. The turtles all scurry to the water, but one by one the dark turtles are eaten by birds, only the sand colored turtle survives. When it enters the water the sand color changes to a darker brown. The turtle grows, mates and has offspring that are also sand colored when they are born

A female alligator gives birth to a male alligator that has the ability to change color to a bright white when it is in cold water. The baby male alligator is quickly spotted by a large bird of prey and eaten

10 points   

QUESTION 6

During the Beagle journey, Darwin visited islands, allowing him to compare island species with continental species. In terms of framing his theory of evolution, why was this significant?

Because the island species had both similarities to their continental ancestors and unique adaptations to their island environments

Because the island species no longer shared traits with their continental ancestors

Because the species he saw on the islands had not changed from their ancestral continental form

Because the island species had very low reproductive and survival rates as compared with their continental ancestors

comparing the skeletal anatomy

examining the habitat in which these organisms live

looking at embryos for common developmental patterns

comparing the nucleotide sequence divergence of selected genes

all of the above would provide useful information

Explanation / Answer

Question 3 - examining the habitat in which these organisms live. this is not a good method.

Question 4- Hawaiian islands also called Galapogas islands

Question 5 - Several turtles hatch from a clutch of eggs buried in the sand on a beach. One of the turtles is the color of the sand, the others are darker in color. The turtles all scurry to the water, but one by one the dark turtles are eaten by birds, only the sand colored turtle survives. When it enters the water the sand color changes to a darker brown. The turtle grows, mates and has offspring that are also sand colored when they are born

Question 6 - Because the island species had both similarities to their continental ancestors and unique adaptations to their island environments.

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