Science perspective

1 about 79% of the world climate scientists

accept as fact that burning fossil since the

industrial revolution caused a steady increase in

atmospheric CO2 levels and a corresponding rise

in global temperature. Now consider the time

before the industrial revolution. before we began

to burn large amounts of fossil fuels. explain

why naturally fluctuating global temperature

over the last 540 thousand years resulted in

corresponding change in atmospheric CO2

concentration. (CB&M)
2 explain in terms of molecular how

phospholipids are perfectly suited to form

biological members? you may use a diagram to

illustrate this point. (CS&F)
3 in terms of the definition of heat,

describe the properties of a material with a high

thermal conductivity vs. the properties of a

material with a high specific heat capacity. give

an example of each. (THD)
4 rat exterminators often use a pesticide

named warfarin to deal with these pests. although

initially very effective. warfarin appears to be

losing its effectiveness against the rat

population. example why. (note: use what you know

about variation and natural selection. (EVOL).
5 Glycogen is an important molecule found

primarily in the liver, muscles, and brain.

explain how it functions in each of these three

location. Also, what glucose polymer found in

plants is similar to glycogen in structure and

what does it do for the plant?
6 astronomers may learn about distant

galaxies by observing lines in the visible

spectrum given off by burning elements are

slightly closer to red end of the spectrum than

expected. what does this tell her about the

galaxy? explain the effect she is observing?

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(S&EM)
7 provide an example of a falsifiable

hypothesis (one that is scientifically testable)

and a non-falsifiable hypothesis (one that is not

scientifically testable). for the falsifiable

hypothesis, briefly describe how you would test

it. For the non-falsifiable hypothesis, explain

why it is not testable. (NS) (do not use religion

as an example)
8 18O and 16O are both isotopes of oxygen.

describe the difference or difference between

them. be specific about the atomic components of

each. would the differences be reflected in as

energy shell diagram? explain why or why not.

(AS)
9 your body has two immunological methods

of protection termed innate and adaptive

immunity. explain the difference between the two.

which method is taken advantage of when creating

vaccines” why does it work?(CB&MS)
10 you begin pushing on a 100-kg golf cart

when it is stationary, and you keep pushing until

it is moving with a velocity of 5/s. if it took

you 50 s to accelerate the golf cart, how much

power did you provide?(EN)
11 a windmill generates electricity without

increasing the concentration of atmospheric

carbon dioxide(CO2). explain how this is

possible. by what mechanism does a windmill

convert mechanical (wind) energy into

electricity? (E&M)
12 a common claim made by intelligent design

(ID) supporters is that features like the eye and

bacterial flagella are “irreducibly complex” and

thus appeared suddenly intact, the product

intelligence, not chance mutation, the driving

force of evolution. therefore, ID should be

taught a scientific alternative to evolution. is

chance mutation the driving force of evolution?

if not, what is the driving force of evolution
13 Gregor Mendel grew over 40,000 pea plant

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in the course of his investigation of how traits

were passed down from one generation to another.

what important conclusion did he arrive at, and

what would it have to do with evolution by

natural selection proposed by Darwin in 1859
14 a cliff diver (with a mass of 90

kilograms ) boldly plunges from a rock ledge into

a deep pool, hitting the water in 3 seconds.

(KF/M)
A. what is his velocity when he hits the water?
B. how high is the ledge?
1 5 the atmosphere of Venus is primary

carbon dioxide (96.5%). it has an average

temperature of 735 K, the same temperature

regardless of weather its day or night. Mercury,

a planet that’s closer to the sun, has no

atmosphere. its daily high temperature is 700 K

and nightly low is 100 K (the K scale starts at

absolute 0, so room temperature is 300K ) how is

it possible for Venus to be warmer than Mercury,

and why doesn’t the day/night temperature of

Venus change? explain.
16 you have the opportunity to travel to an area

in Ethiopia that has yielded fossils important to

our understanding of human evolution. you and

friend stumble upon a potentially important find,

a nearly complete skeleton of what appears to be

an early hominid. your friend disagrees, claiming

that it is nothing more than a tree-dwelling

ancestor to a modern chimp. under careful

examination of this fossil, what specific pieces

of fossil evidence may give clues as to which one

of you is likely to be correct (EVOL)