OGT REVIEW TOPICS DAY I

Based on the information in the passage, the snowshoe hares are

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1. carnivores.

2. decomposers.

3. herbivores.

4. producers.

One assumption about the data used in this study is that

1. oscillations in population size occur every ten years. 2. the number of pelts reflects the size of the

populations. 3. snowshoe hares have an impact on their food supply. 4. hares and lynx were trapped over a period of 100

years.

What would prevent the lynx population from declining along with the hare population?

1. an extremely harsh winter 2. an influx of other hare predators 3. an abundant alternate food source 4. an outbreak of disease among hares

Suppose the same scientist wanted a Himalayan rabbit with white feet. Which procedure would most likely generate these results?

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bbit out

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1. place ice packs on the rabbit’s feet2. place the rabbit outside on a sunny day 3. place the rabbit outside when it is

snowing 4. place the rabbit in a cage with a heated

floor

During the winter months, the body temperature of Himalayan rabbits is several degrees lower than it is during the summer months. This causes the rabbits’ fur to grow in black. This color change in the winter could negatively affect the rabbits because black fur

1. is thinner than the white color fur.2. makes them easier for predators to see.3. reduces their chances of finding a mate. 4. does not absorb as much heat as white color fur.

The black fur on Himalayan rabbits helps provide additional warmth for the ears, noses, feet and tails.

Why does the fur color affect warmth for these areas?

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Black fur generat... Black fur insulat...

Black fur reflect... Black fur absorbs...

1. Black fur generates more heat energy than white fur.

2. Black fur insulates the rabbit from cold better than white fur.

3. Black fur reflects more heat energy from sunlight than white fur.

4. Black fur absorbs more heat energy from sunlight than white fur.

What 20th-century event most likely had the greatest impact on the recovery of light moth populations?

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Higher taxes impo... invention of the ...

clean air legisla... reduced fuel effi...

1. Higher taxes imposed on oil imports 2. invention of the silicon solar cell in

1941 3. clean air legislation passed in the

1950s4. reduced fuel efficiency in new

automobiles

Kettlewell’s results indicated that black moths in industrialized areas

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had greate... could out-... had a high... could chan...

1. had greater genetic variation than light moths.

2. could out-compete light moths for food and habitat.

3. had a higher survival rate than light moths in the same area.

4. could change their phenotype when environmental conditions changed.

The change in population numbers of black and light moths from 1850 and 1900 is most likely a result of the increased use of

1. fossil fuels.

2. solar energy.

3. geothermal energy.

4. pollution control technologies.

Which is the best explanation for the small puddle around Cup A and the larger puddle around Cup B?

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Cup A

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Cup A

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.

The

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f Cup ..

.

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1. Cup A contained more ice than Cup B.

2. Cup A was a better insulator than Cup B.

3. Cup A had a greater volume of lemonade than Cup B.

4. The contents of Cup A were initially colder than the contents of Cup B.

Suppose Franklin had a third cup, made of Styrofoam®, to which he added the same number of ice cubes and the same amount of lemonade. What would Franklin expect to observe after 20 minutes?

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0% 1. The Styrofoam cup would have a smaller puddle than either the glass or plastic cup.

2. The Styrofoam cup would have a larger puddle than either the glass or plastic cup.

3. The Styrofoam cup would have a puddle exactly the same size as the plastic cup.

4. The Styrofoam cup would have a larger puddle than the plastic cup but a smaller puddle than the glass cup.

What changes in the hot pack over the course of the demonstration?

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1. total mass

2. number of protons

3. number of atomic nuclei

4. amount of thermal energy

The energy conducted through the circuit will cease at some time after

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hot pack s... chemical r... fan blades... mercury in...

1. hot pack stops conducting electricity.

2. chemical reaction in the hot pack ends.

3. fan blades are disconnected from the motor.

4. mercury in the battery begins releasing electrons.

Electrons in the wire cannot flow into the hot pack because

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1. only positive charges flow through wire B.

2. hot pack atoms have higher kinetic energies.

3. the plastic bag has low electrical conductivity.

4. the hot pack does not contain an electrolyte solution.

Assume that the electric circuit remains complete. Which change in the system would cause a slower rotation within the motor?

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0% 1. reducing friction in the motor 2. decreasing the length of wire B3. increasing the size of the fan blades4. reversing the direction of current flow in the

circuit

A driver is headed north at 50 km/hr. A box is sitting on the seat next to him. What action by the driver would most likely cause him to observe the box appear to slide to the west?

0%0%0%0% 1. applying the brakes

2. speeding up to 60 km/hr3. making a turn to the east4. making a turn to the west

The cross-section below shows the orientation of rock layers in a given area. What geologic event most likely caused the folding and faulting of these layers?

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Bacillus thuringiensis (Bt) is a bacterium that contains a gene that results in the production of a natural pesticide that kills insects. Genetic engineers have successfully inserted this Bt gene into the DNA of some corn varieties, allowing the corn to produce its own pesticide. What negative consequence could result from this technology?

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0%1. Only corn that is resistant to the Bt gene will

survive. 2. Individual insects that eat the genetically

modified corn will develop resistance to Bt.3. The genetically modified crops will insert this Bt

gene into the DNA of humans that eat the corn. 4. Only Bt resistant insects will survive to

reproduce, eventually producing a population of entirely resistant individuals.