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Bio 152 Final Exam Practice Questions and Answers 2025 Graded A+
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How do mutations contribute to evolution? -Correct Answer Random mutations create raw material for natural selection Polynesians established new populations on islands by traveling in groups of <100 people. This is an example of: -Correct Answer The Founder Effect True or False: Evolution ...

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  • February 18, 2025
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BIOD-152


Bio 152 Final Exam Practice Questions
and Answers 2025 Graded A+
How do mutations contribute to evolution? -Correct Answer ✔Random mutations create
raw material for natural selection

Polynesians established new populations on islands by traveling in groups of <100
people. This is an example of: -Correct Answer ✔The Founder Effect

True or False: Evolution is fairly controversial among both the general public and among
scientist -Correct Answer ✔False

The fact that humans, whales, bats, and cats all have similar limb bones is an example
of: -Correct Answer ✔anatomical similarities

Why do viruses tend to mutate faster than humans genomes? (two answers) -Correct
Answer ✔Most viruses have RNA genomes
Viruses reproduce faster than humans

True or False: Natural selection is the mechanism by which all evolution occurs -Correct
Answer ✔False

According to the Biological Species Concept, two (2) organisms are considered the
same species if: -Correct Answer ✔They can mate together and produce fertile offspring

Warbler birds sing to attract mates. If a group split and songs diverge, they may
undergo: -Correct Answer ✔Behavioral reproductive isolation

The concept "punctuated equilibrium" states that: -Correct Answer ✔Evolution tends to
occur rapidly at some times and more slowly at other times

True or False: For a large majority of Earth's existence, the only living things were
single-celled organisms -Correct Answer ✔True

A major advantage of the amniotic egg is that: -Correct Answer ✔It allows parents to
better protect their offspring

What is the relationship between humans and chimps? -Correct Answer ✔Humans and
chimps share a common ancestor

In living things, branched or folded structures are often: -Correct Answer ✔Involved in
exchange of substances with the environment

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,BIOD-152



Countercurrent exchange: -Correct Answer ✔Reduces the amount of heat lost from
body

You have temperature receptors that send messages back when you get too hot/cold.
In a feedback loop, they are acting as: -Correct Answer ✔Sensors

Why do we need to eat? (3 answers) -Correct Answer ✔Fuel making ATP
Obtain vitamins/minerals
Obtain building block for organic macromolecules

In humans, digestion mainly occurs in the: -Correct Answer ✔Small intestine

Most macronutrients are absorbed by the blood in the digestive system, with the
exception of: -Correct Answer ✔Fats

Herbivores tend to have longer alimentary canals than carnivores; this is helpful
because: -Correct Answer ✔plant-based food take longer to digest

30 minutes after eating a large meal, you would probably have: -Correct Answer ✔high
insulin and normal blood sugar

Which would you NOT expect to find in blood -Correct Answer ✔Neurotransmitters

What causes the AV valves in the heart to open -Correct Answer ✔Blood accumulating
in the atria

What is the condition in which the SA node is unable to send signals to the AV node -
Correct Answer ✔Heart block

Protein starvation can cause edema by: -Correct Answer ✔lowering capillary osmotic
pressure

Systolic blood pressure is the: -Correct Answer ✔Pressure in your systemic arteries
when ventricles are contracting

Atherosclerosis begins with: -Correct Answer ✔Fatty deposits in the walls of arteries

Erythropoietins function is to: -Correct Answer ✔Increase production of red blood cells

When the diaphragm contracts: -Correct Answer ✔Lungs expand, triggering inhalation

In pulmonary edema: -Correct Answer ✔Oxygen diffusion is more impaired than carbon
dioxide diffusion

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, BIOD-152



If blood pH decreases: -Correct Answer ✔Hemoglobin's affinity for oxygen will be
decreased

What is an example of the immune system's first line of defense -Correct Answer ✔Skin

Interferons protect you by: -Correct Answer ✔Triggering production of antiviral proteins

The portion of bacterial cells that an antibody actually recognizes is an: -Correct Answer
✔Epitope

Vaccination is an example of: -Correct Answer ✔Active, artifically-acquired immunity

In someone with untreated HIV, over time you would expect to see: -Correct Answer
✔Sustained high levels of anti-HIV antibodies

Solution A is 10% NaCl in water; Solution B is 5% NaCl in water. What is true about this
-Correct Answer ✔A is hyperosmotic to B

Within the kidney, filtration occurs in: -Correct Answer ✔Bowman's capsule

High levels of ADH activity would result in: -Correct Answer ✔A smaller volume of more
concentrated urine

Best description of the mechanism of steroid action -Correct Answer ✔Forms
complexes with receptors that directly influence transcription of DNA

True or False: A hormone will always have the same effect on every cell that has
receptors on it -Correct Answer ✔False

An example of a tropic hormone: -Correct Answer ✔ACTH

After thyroid removal, you would see: -Correct Answer ✔High TSH, low T3 and T4

A human with a functional SRY gene will: -Correct Answer ✔Produce testosterone and
anti-Mullerian hormone

A mutation in the 5a reductase gene prevents: -Correct Answer ✔Conversion of
testosterone into dihydrotestosterone

Semen is sperm combined with fluid from what 2 structures -Correct Answer ✔Seminal
vesicles and prostate



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