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Megan Gill
Which of the following have been changed or altered

due to climate change.

A. Droughts

B. Flooding

C. Melting of polar ice caps

D. All of the above
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Kaila Bonilla
Movement of molecular oxygen (O2) and carbon dioxide (CO2) across the cell membrane Choose one: A. occurs only unidirectionally, such that oxygen is allowed to enter and carbon dioxide (waste) is able to leave. B. only occurs when the O and C atoms are part of some other molecule (e. g., a sugar or amino acid). C. requires energy in the form of ATP or the proton motive force. D. occurs passively, but membrane transporters are required to facilitate their movement. E. occurs by passive diffusion.
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Giancarlo Hurst
3 physical characteristics of humans affected by the environment?
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Issac Mcbride
What is indirect competition in biology terms
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Carsen Armstrong
A muscle cramp is most likely due to lack of

A) ATP.

B) ADP.

C) actin.

D) myosin.

E) acetylcholine.
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Makenna Wilcox
Why is speech the easiest modality for communication?
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Beef
Which statements describe the cyclic nature of seafloor spreading? Check all that apply.

a) Continents are created.

b) New oceanic crust is created.

c) Volcanoes erupt and produce more crust.

d) Old crust is destroyed at subduction zones.

e) Old crust is pushed away from oceanic ridges.
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Tilly
Increase of greenhouse gases, due to human activity, is melting sea ice at the poles. This causes changes in climate. Name three Earth spheres which interact in this process. Justify your answer.
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Jamison Steele
In the final stage of the oxidation of food molecules, a gradient of protons is formed across the inner mitochondrial membrane, which is normally impermeable to protons. If cells were exposed to an agent that causes the membrane to become freely permeable to protons, which of the following effects would you expect to observe? (Choose one option only) a) Cells would be completely unable to synthesize ATP. b) NADH would build up. c) Carbon dioxide production would cease. d) consumption of oxygen would fall. e) ATP synthase would not be able to make ATP
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Virginia
What is the probability that a colorblind male and a normal female will have a colorblind son?
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Demarion
Wind can transport particles of many different sizes. What sized

particles are probably carried the farthest by the wind?
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Kristopher Roy
A country that has been relatively poor is starting to become wealthier. This has brought many people into the capital city, causing the population to grow very rapidly. Many new apartment buildings, as well as water and waste management systems, are being constructed to meet their living needs.

Which other technology would be a priority for the survival of such an expanding population?

A. Better communication systems

B. Structures for growing food in or near cities

C. Modern recreational facilities

D. New methods of public transportation
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Winter
An inactive gene inherited from an ancestor is an example of which kind of evidence for evolution?

A. DNA

B. fossil

C. anatomical

D. radiometric
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Tatiana Kerr
Which choice is a biotic factor of an ecosystem

soil

air

ants

sun
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Lara Burns
Which of the following are necessary for a seed to germinate? 1. moisture content of seed must be at least 9% 2. Moisture content of the seed must be less than 9% 3. certain enzymes in the seed are activated 4. temperature must be above 80 degrees 5. temperature must be below 80 degrees
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