BIO 191 FINAL EXAM NEWEST 2024-2025 ACTUAL

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BIO 191 FINAL EXAM NEWEST 2024-2025 ACTUAL

EXAM COMPLETE 350 QUESTIONS AND CORRECT

DETAILED ANSWERS (VERIFIED ANSWERS)

|ALREADY GRADED A+

A student set up an experiment to test if plants give off water vapor. Fifty pea plants, growing in pots, were covered with individual glass containers and left overnight. The next morning, the inside of each lid was covered in droplets of water. The lab student concluded that plants generally give off water vapor.What critique would you make of the experimental design?

a)There was no control so the water could have come from other sources such as air in the jar or the soil.b)There was not a large enough sample of pea plants used to get adequate data.

c) The student did not have a valid hypothesis before beginning

the experiment.

d) The hypothesis did not lead to testable predictions. -

ANSWER- a)There was no control so the water could have come from other sources such as air in the jar or the soil.

Which property of living things is described by this scenario: 1 / 4

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In 1980, scientists determined that 2% of the honey bees in Texas had a gene that makes them more aggressive. By 2005, the frequency of this gene in the Texas honeybee population had increased to 15%.

a) Homeostasis

b) Evolutionary adaptation

c) Sensitivity

d) Ordered complexity

e) Energy utilization - ANSWER- b) Evolutionary adaptation

If you put DNA in a test tube that contains the right mix of chemicals and the right temperature conditions, more copies of the DNA will be made (self-replication). Why isn't DNA considered a living thing?

a) DNA is not composed of atoms

b) DNA does not require energy to be made

c) DNA is not made of cells

d) DNA does not contain carbon, hydrogen, or oxygen -

ANSWER- c) DNA is not made of cells

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The level of organization that is more complex than an atom but

less complex than an organelle is a(n):

a) Organ

b) Organism

c) Cell

d) Tissue

e) Molecule - ANSWER- e) molecule

A scientific theory is:

• a suggested explanation that accounts for observations.
• a way to organize how we think about a problem.
• a concept that is supported by experimental evidence that

explains the facts in an area of study.

• the conclusions a scientist makes from a single experiment. -

ANSWER- c)a concept that is supported by experimental evidence that explains the facts in an area of study.

According to cell theory, all organisms contain more than one cell.

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• true
• false - ANSWER- b) false

a suggested explanation that accounts for observations is a:

• hypothesis
• theory
• prediction
• scientific guess - ANSWER- a) hypothesis

H bonds form between:

• water molecules ONLY
• a non polar and a polar molecule
• non polar molecules
• polar molecules
• any two molecules that Bothe contain a hydrogen -

ANSWER- d) polar molecules

which of the following is found in ALL cells?

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