BIOS 100 Exam Practice

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BIOS 100 Exam Practice

• Which of the following is the basic unit of life?
• Atom
• Molecule
• Organelle

d. Cell:

Answer D

• All of the following are characteristics of life EXCEPT
• evolution.
• reproduction.
• homeostasis.

d. multicellularity.:

Answer D

• Which two levels are farthest apart on the hierarchy of biological

organization?

• Organism and population
• Ecosystem and biosphere
• Atom and cell

d. Tissue and organ:

Answer C

• Because plants extract nutrients from soil and use sunlight as an energy source,

they are considered to be

• autotrophs.
• consumers.
• heterotrophs.

d. decomposers.:

Answer A

• Evolution through natural selection will occur most rapidly for populations

of plants that

• are already well adapted to the environment.
• live in an unchanging environment.
• are in the same genus. 1 / 2

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d. reproduce sexually and live in an unstable environment.:

Answer D

• What is the correct way to write the scientific name for humans?
• Homo sapiens
• Homo sapiens
• Homo Sapiens

d. homo sapiens:

Answer B

• In an experiment to test the effect of temperature on the rate of bacterial

reproduction, temperature would be the

• standardized variable.
• independent variable.
• dependent variable.

d. control variable.:

Answer B

• A scientist has just observed a new phenomenon and wonders how it happens. What

is the next step in his or her discovery of the answer?

• Observe
• Hypothesize
• Experiment

d. Peer review:

Answer B

• Can a theory be proven wrong?
• No, theories are exactly the same as facts.
• No, because there is no good way to test a theory.
• Yes, a new observation could disprove a theory.

d. Yes, theories are exactly the same as hypotheses.:

Answer C

• Which of the following statements is false?
• Emergent properties are functions that arise from the interactions between an

organism's parts.

• Two of the three domains contain prokaryotic organisms.
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