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Biology

How did we determine that mutations are random

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Kassidy Dougherty

Biology

In these protein assays, the absorbance is plotted on the y-axis, while concentration is plotted on the x. If the equation of the line for your standard curve is y = 0.057x + 0.069 with an R^2 value of 0.9913, and your sample has an absorbance of 1.111, what is the concentration of your sample?

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Biology

Which mathematical statement shows the relationship between gravity and mass?

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Biology

Black fur is dominant to brown hair in guinea pigs. Incomplete dominance is exhibited in guinea pigs with gray and white hair. What could you do to determine the genotype of guinea pig with black fur?

Mate the black guinea pig with a brown guinea pig.

Mate the black guinea pig with another black guinea pig.

Mate the black guinea pig with a white guinea pig.

Mate the black guinea pig with a gray guinea pig.

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Biology

Which type or types of rock can become metamorphic rock?

A.

igneous, sedimentary, and metamorphic rocks

B.

only sedimentary rocks

C.

metamorphic and igneous rocks

D.

igneous and sedimentary rocks

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Biology

Many factors determine the health of an aquatic ecosystem. Which choice list only abiotic factors?

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Biology

Which is not used to produce gasohol? corn petroleum coal peanuts?

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Biology

Which of the following is an example of an organism maintaining homeostasis?

1. A cat grooming itself

2. A bear nursing her cubs

3. A man sweating while he runs

4. A boy riding a bike

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Biology

Which of the following is the era in which we now live?

Mesozoic

Phanerozoic

Cenozoic

Paleozoic

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Biology

Adenine pairs with what

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Savanna Griffin

Biology

Trees take carbon dioxide out of the air and convert it to oxygen, so the government funds a tree-planting initiative by offering $300 to any citizen who plants a tree.

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Biology

How many cells does a unicelullar living organism have

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Biology

When does a wheel and axle have a mechanical advantage greater than one?

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Caden Macdonald

Biology

What do cells need to do between divisions to make sure that a full set of dna gets passed on to each daughter cell?

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Alessandra Olson

Biology

True or false: The central nervous system allows us to sense the environment

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