What can Courtney change in her experiment to find the true impact ofthe type of meals she eats on her race time?
Select one:
A. For two weeks of her study, she can eat her high protein meal
for breakfast and high carbohydrate meal for lunch; she should
then switch the meals for the last two weeks.
B. She should try running a longer distance after lunch since
she seems to be faster regardless of her meal. C.She should only eat her high protein meals for breakfast and
only eat her high carbohydrate meals for lunch for all four weeks
of her study. D. She should eat only protein meals on some days and only
carbohydrate meals on other days, which can be determined by a
coin toss.

In 1967 a penicillin-resistant pneumonia, caused by Streptococcus pneumoniae and called pneumococcus, surfaced in a remote village in Papua, New Guinea. At about the same time American military personnel in southeast Asia were acquiring penicillin-resistant gonorrhea from prostitutes. By 1976, when the soldiers had come home, they brought the new strain of gonorrhea with them and physicians had to find new drugs to treat it.

In 1983 a hospital-acquired intestinal infection caused by the bacterium Enterococcus faecium joined the list of bacteria that could not be killed by penicillin.
Which of these BEST describes why certain bacteria have become resistant to penicillin?
A) The penicillin in the 1970's was much weaker that the penicillin used today, thus it was not as effective.
B) Penicillin was not effective in treating any bacterial diseases, so the doctors had to find new treatments.
C) These new bacterial strains came out of the jungles and forests already equipped to be penicillin-resistant.
D) Penicillin was so heavily prescribed by doctors that it led to certain, more fit, strains of bacteria to be able to survive.
2)

After reviewing the results of your science fair project, you state that water has increased the growth of fungi. This is a(n) A) analysis.
B) conclusion.
C) experiment.
D) hypothesis.

Choose all the answers that apply.By what method do mountains form?
erosion
weathering
faulting
folding
magma pushing up the crust
-------


How are sand dunes and deltas similar?
They are both formed by erosion.
They are both formed by weathering.
They both can be prevented by contour plowing.
They both have poor quality soil not suited for farming.
-----


Which of the following is an example of erosion?
a river carrying dirt into a lake
a volcano erupting and releasing lava
chemicals in water dissolving minerals in rock
friction between two rock surfaces grinding away minerals
-----


Which of the following is the most important condition for fossilization?
minerals in water
rapid burial
presence of oil or coal
large amounts of oxygen
------


Deltas _____.
form from deposited sediment
result from chemical weathering
form by volcanic eruptions
have very poor soil that cannot be used to grow crops
----


Choose all the answers that apply.

Fossils can tell us about:
climate
environment
organism structure
landforms
--


What happens when an oceanic and a continental plate collide?
the continental plate sinks below the oceanic plate
the oceanic plate sinks below the continental plate
mid-oceanic ridges are formed
the two plates break from the force
-----


Choose all the answers that apply.

Which of the following fossils are trace fossils?
amber
footprint
bone
tooth
shell

Which is smaller?
Atom or Cell

Portfolio on what wears down and builds up earths surface

What is the molecule for water?