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Two populations of lizards (same species) are located on different islands. These lizards are not very good swimmers. The lizards on Island A all have either gray or green skin, while the lizards on Island B all have brown skin. Recently, due to a drop in water levels, a strip of land that links the two islands has been exposed.

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QUESTION 3

Which of the following would NOT be a good method for sortingout 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 selectedgenes

all of the above would provide useful information

10 points

QUESTION 4

Which of these habitats should have the highest number ofendemic 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 withmodification through variation and natural selection" can bedemonstrated by which of the following examples?

A giraffe stretches his neck to reach higher branches. Theexercise of stretching up strengthens the muscles in the neck andlegs. This ability to stretch is also seen in the giraffe'soffspring.

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 iscleaner and tastes better after it has been in the salty water. Shecontinues to wash fruit in the bay before eating. Her offspring seewhat 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 sandon a beach. One of the turtles is the color of the sand, the othersare darker in color. The turtles all scurry to the water, but oneby one the dark turtles are eaten by birds, only the sand coloredturtle survives. When it enters the water the sand color changes toa darker brown. The turtle grows, mates and has offspring that arealso sand colored when they are born

A female alligator gives birth to a male alligator that has theability 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 preyand eaten

10 points

QUESTION 6

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

Because the island species had both similarities to theircontinental ancestors and unique adaptations to their islandenvironments

Because the island species no longer shared traits with theircontinental ancestors

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

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

The following is a scenerio given by my professor. The bolded questions/instructions are what she wanted us to respond to with short answers using the scenerio provided. This is all she provided me with and nothing more except for a larger second portion (which also confused me a great deal).

You are part of research team that travels to a small island, Isla Naturale, to study various organisms on the island. When you get there you and a couple of colleagues decide to survey areas that seem to have very little organisms present like the beach and near the lava rocks. You notice that you can see a few lizards running around, they are nearly identical in every way except for their color. One lizard is light brown with white spots found mostly at the edge of the coast and the other is a gray color with black spots found to nest under lava rocks. You would like to test if they are separate species or if they interact with one another. Using the scientific method (question, research, hypothesis, experiment, analysis, and conclusion), design an experiment you could do to answer your question.

You travel back to Isla Naturale to study microbial organisms in a cave that one of your colleagues discovered a couple of months ago. Colleagues have found an underground spring inside the cave and decide to collect and bring back samples of water, rock, and soil. Once you examine the specimens closely you find the microbes present in the soil near the spring. The whole lab celebrates because it is a newly discovered organism and label it ISNAT01.

You are all excited to have potentially found a new life form. You find out that that ISNAT01 requires a high concentration of the ionic compound sodium chloride (NaCl) to live. Since no other organisms were found in the spring, the water must contain high amounts of sodium chloride. You test the pH of the water, the pH meter reads 10.12.

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What is AIDS caused by?

a mutation on a cell’s receptor site
a bacterium
a virus
mosquito bites

When are zoonotic diseases likely to spread?

when humans are exposed to fowl
when crowded, unsanitary conditions exist
when humans are exposed to cattle
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Antibiotic resistant diseases are a product of overuse and importer use of antibiotics.

True
False

Which of the following is the consensus criterion for identifying a biological race?

tow populations of the same species are located in two different geographical areas
at least 50 percent of the members of one population of a species must be physically distinguishable from those from another population
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two populations have different vocalizations or, in humans, languages

Why is race based medicine problematic?

race is essentially a cultural construct
all of these
there is often a limited correlation between reported race and a person’s genetics
incorrectly determined race can cause incorrect disease treatment

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