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Quiz Session - Attempts With Random Questions

College Biology Exam Questions

Page 10 of 100

181.

Which of the following signal phrases would an author most likely use in writing a problem/solution piece?

  • One reason for

  • Since

  • Similarly

  • To finish

Correct answer: One reason for

The phrase one reason for is a signal that the author is writing a problem/solution article. Other signal words and phrases used for identifying problem/solution articles are: the problem, so that, for this reason, if… then…, because, this led to, and a solution.

Since is a signal word for cause and effect. Similarly is a signal word for compare/contrast. To finish is a signal phrase for a procedure.

182.

Which of the following solutions makes a new type of metal by combining solid solutions of other metals?

  • Alloys

  • Compounds

  • Amalgams

  • Emulsions

Correct answer: Alloys

Alloys are solutions that make a new type of metal by combining solid solutions of other metals. An example of an alloy metal is bronze, as copper and tin are combined to make it.

Compounds are solutions that create a single matter by mixing different elements. Amalgams are solutions that use mercury to dissolve another metal type. Emulsions are solutions that combine readily separate matter.

183.

What kind of molecule can react either as an acid or as a base?

  • Amphoteric

  • Catalyst

  • Protein

  • Neutron

Correct answer: Amphoteric

Chemically, water is amphoteric, or a molecule that can react as an acid as well as a base.

A catalyst is any substance that increases the rate of a reaction without itself being consumed. Protein molecules contain chains of amino acids linked by peptide bonds. A neutron is a neutral subatomic particle that has no electric charge.

184.

Which of the following options places the given sentences in the best chronological order to form a paragraph?

  • A. Once the cookies were done baking, Patty placed a dozen cookies on each of the twelve plates that she had laid out.
  • B. Patty decided to bake chocolate chip cookies for her church’s bake sale on Saturday.
  • C. On Saturday morning, she delivered the plates of cookies to the church for the bake sale later that day.
  • D. Patty drove to the grocery store to pick up the ingredients that she needed to make the cookie dough.

  • B, D, A, C

  • D, A, C, B

  • D, B, C, A

  • B, A, D, C

Correct answer: B, D, A, C

The option that places the given sentences in the best chronological order to form a paragraph is B, D, A, C. This is the sequence that makes the most sense.

Patty decided to bake chocolate chip cookies for her church’s bake sale on Saturday. Patty drove to the grocery store to pick up the ingredients that she needed to make the cookie dough. Once the cookies were done baking, Patty placed a dozen cookies on each of the twelve plates that she had laid out. On Saturday morning, she delivered the plates of cookies to the church for the bake sale later that day.

185.

Which of the following is a dangerous complication associated with pregnancy?

  • Eclampsia

  • Migraines

  • Hormonal changes

  • Aura pregnancy

Correct answer: Eclampsia

The passage’s last paragraph informs the reader that eclampsia is a dangerous complication associated with pregnancy: “…it might be a symptom of eclampsia, a very dangerous complication of pregnancy.”

Migraines, hormonal changes, and aura pregnancy are incorrect because the passage does not state that they are dangerous complications associated with pregnancy. However, the passage does state that an aura pregnancy could cause migraine symptoms to become worse, which is not considered a dangerous complication associated with pregnancy.

186.

What is the primary role of microorganisms in disease?

  • To cause infection

  • To spread infection

  • To provide immunity

  •  To aid in digestion

Correct answer: To cause infection

Microorganisms are the primary cause of many infectious diseases, as they can invade the body and cause infection.

187.

If a homozygous red bird (RR) is crossed with a homozygous blue bird (rr), what is the probability that the offspring will have red feathers?

  • 100%

  • 25%

  • 50%

  • 75%

Correct answer: 100%

To answer this question, draw a Punnett square and carry over the provided letters (view the provided image). You can see that the offspring has a 100% chance of having red feathers, as all four squares contain the dominant allele (R).

188.

Which of the following explains why organizations are facilitating the development of innovative technologies?

  • They could reduce the incidence of distracted driving

  • They would cancel the need to use a mobile device

  • The organizations could use the profit to fight the war against texting while driving

  • It would completely eliminate texting while driving

Correct answer: They could reduce the incidence of distracted driving

The author states that organizations are facilitating the development of innovative technologies because they could reduce the incidence of distracted driving. This statement can be found in the first sentence of the second paragraph of the passage.

189.

Which of the following can lead to melanoma, which is a skin cancer?

  • Sun exposure

  • Obesity

  • Alcohol abuse

  • Diabetes

Correct answer: Sun exposure

The sun contains ultraviolet rays and exposure to those rays plays a major role in the development of skin cancer.

Obesity can lead to type 2 diabetes. Alcohol abuse can lead to liver disease. Diabetes can lead to kidney disease.

190.

What type of writing does the following exemplify?

It was a cold and especially dark night in the thin woods. Joseph could see a billion stars above his head as he trudged his way through the ankle-deep snow to his grandmother's house. He knew the warm fire and a huge pot of her famously delicious slow-cooked beans awaited him.

  • narrative

  • descriptive

  • expository

  • persuasive

Correct answer: narrative

Narrative writing tells a story or event. 

Descriptive writing is rich in detail as the writer visualizes the full experience and writes it for the audience to experience as richly.  Expository writing offers an explanation, often of a process. It is usually in a logical order and sequence. In persuasive writing, the writer makes a claim and argues in support of it.

191.

Which type of sensory nerve ending responds to light?

  • Photoreceptor

  • Encapsulated nerve ending

  • Free nerve ending

  • Proprioceptor

Correct answer: Photoreceptor

Cells that interpret information about the environment can be one of three structural types: 1) a free nerve ending in which the dendrites (signal-receiving processes of a nerve) have no special covering and are embedded in the tissue they receive input from. Free nerve endings respond to pain and temperature signals; 2) an encapsulated ending in which the sensory endings are enclosed in a type of connective tissue covering that enhances their sensitivity. Encapsulated nerve endings respond to pressure and touch.; 3) a specialized receptor cell with a distinct structure designed to interpret a particular type of stimulus. Light receptors in the retina, called photoreceptors, respond to light impulses.

Receptors can also be classified by their location. An exteroceptor is located near where a stimulus from the external environment would be sensed, such as in the skin. An interoceptor interprets stimuli from internal organs, and a proprioceptor is located near a moving body part such as a muscle, and interprets body position.

192.

Identify the sentence with incorrect subject-verb agreement.

  • Watching cartoons are the most important part of my mornings.

  • Mathematics is the hardest subject I’ve had to learn.

  • Good tidings are sent our way from Jan’s mother.

  • The scissors were in his hand this whole time.

Correct answer: Watching cartoons are the most important part of my mornings.

The sentence that has incorrect subject-verb agreement is: Watching cartoons are the most important part of my mornings.

Every (non-modal) English verb has five forms: simple, past, past participle, present participle, and infinitive (e.g., go, went, gone, going, to go). The present participle is the -ing form. This present participle (and the infinitive) can behave as a noun. When we begin a sentence with the -ing form of a verb, its present participle, it is a noun and the subject of the sentence. Therefore, in this sentence, watching is a noun and is the sentence subject. That noun is third-person singular. Third-person singular nouns require third-person singular verbs, in this case is. The corrected sentence is Watching cartoons is the most important part of my mornings.

The other three options all have correct subject-verb agreement. The noun mathematics is a third-person singular noun and requires a third-person singular verb (is). The nouns tidings and scissors are plural nouns and require plural verbs (are and were).

193.

Marsha is paid $74,320 before taxes. If she pays a total of 31% in taxes, what is her take-home pay?

  • $51,280.80

  • $23,039.2

  • $22,296

  • $52,024

Correct answer: $51,280.80

Find the take-home percentage.
If Marsha pays 31% in taxes, she keeps 100% - 31% = 69% after taxes.

Find the take-home pay.
To find take-home pay, multiply the 69% by $74,320, giving 69% × $74,320 = 0.69 × $74,320 = $51,280.80.

194.

If the diameter of a circle is 3 feet, what is its radius in inches?

  • 18 in

  • 36 in

  • 12 in

  • 24 in

Correct answer: 18 in

Find the radius.
The radius is half the diameter, which in this case is 3 feet (ft)/2 = 1.5 ft.

Convert to inches.
Since 1 ft = 12 inches (in), use a unit conversion fraction:
1.5 ft × 12 in/1 ft = 18 in.

195.

Identify a compound sentence.

  • I generally don’t mind cooking, but this kitchen is too small to cook in.

  • When I get to go home, I’m actually going to appreciate it.

  • If I ever see land again, I’m never stepping a foot off of it again.

  • My eyes and my nose hurt and look red.

Correct answer: I generally don’t mind cooking, but this kitchen is too small to cook in.

The option that is a compound sentence is: I generally don’t mind cooking, but this kitchen is too small to cook in. Compound sentences consist of two independent clauses, and they are joined by a comma and a coordinating conjunction or by a semicolon.

Two of the sentence options When I get to go home, I’m actually going to appreciate it and If I ever see land again, I’m never stepping a foot off of it again are complex sentences, as they each contain one independent clause (I’m actually going to appreciate it; I’m never stepping a foot off of it again) and one dependent clause (When I get to go home; If I ever see land again). The other sentence option My eyes and my nose hurt and look red is a simple sentence, as it only contains one independent clause and no dependent clause.

196.

Which of the following represents 0.82 as a fraction in lowest terms?

  • 41/50

  • 82/100

  • 20/25

  • 80/82

Correct answer: 41/50

Write as a fraction.
0.82 represents 82 hundredths, or 82/100.

Reduce to lowest terms.
Since 82 and 100 share a factor of 2, divide the numerator and denominator by 2. This gives 41/50. 41 is a prime number, so there is no further reduction possible and the fraction is in lowest terms.

197.

A herd of wildebeest supports lion populations by providing a food source for the lions, and lions preserve the health of a wildebeest herd by eliminating weak, injured, and sick animals that consume resources without reproducing or providing protection to the heard. This relationship is an example of:

  • Bidirectional causation

  • Third-cause fallacy

  • Reverse causation

  • Arrow of time theory

Correct answer: Bidirectional causation

When two effects act as causes for each other, the relationship is called bidirectional causation. In this instance, the health of the wildebeest herd relies on predation of lions and the health of the pride of lions relies on the food source provided by the wildebeest.

A third-cause fallacy leaves out a factor that is the true cause of two separate conditions. Reverse causation is an invalid form of reasoning that reverses cause and effect. Arrow of time theory says that time moves in one direction; from past to future, and that future events cannot change past events.

198.

Which of these increases the solubility of a solid in liquid?

  • Increased temperature

  • Increased pressure

  • Decreased temperature

  • Decreased pressure

Correct answer: Increased temperature

The solubility of a solid when placed in a liquid increases with temperature. Pressure will increase solubility of a solid only in gas.

199.

The electrical signal that nervous tissue generates for communication is known as the:

  • Action potential

  • Resting potential

  • Threshold

  • Repolarization

Correct answer: Action potential

At rest, a nerve cell membrane maintains a concentration of charged potassium particles (ions) on the inside of the membrane that is slightly different than the concentration of charged sodium ions on the outside, known as the resting potential. Sodium and potassium ions both have a charge of +1.

At rest, the nerve cell maintains a concentration of sodium outside the cell that is 10 times greater than the concentration of potassium inside the cell; thus, there is a net negative charge on the inside of the cell membrane. To initiate a nerve impulse, such as from an incoming signal from another nerve, a voltage-gated sodium channel on the cell membrane is opened and sodium pours into the cell, depolarizing the membrane and changing the resting potential into an action potential, which propagates down the axon. An action potential occurs when the incoming signal is strong enough to reach the voltage threshold of the sodium channel. Once the membrane depolarization reaches a certain level, a different voltage-gated potassium channel opens, letting potassium out of the cell in a process known as repolarization.

200.

Convert 2.25 pounds to ounces.

  • 36 oz

  • 32 oz

  • 40 oz

  • 48 oz

Correct answer: 36 oz

Use a unit conversion fraction.
2.25 pounds(lb) × 16 ounces(oz)/1 lb = 36 oz.

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