1. Adipose tissue, commonly known as fat, primarily functions in:

A. Support
B. Insulation
C. Energy storage
D. All of the above

Correct answer: D

Rationale: The correct answer is D, 'All of the above.' Adipose tissue, or fat, serves multiple functions in the body. It provides support by cushioning and protecting organs, acts as an insulation layer to maintain body temperature, and serves as a crucial energy storage site where excess energy is stored in the form of triglycerides. Therefore, all of the options listed (support, insulation, and energy storage) are accurate functions of adipose tissue.

2. What is the least common multiple (LCM) of 4 and 6?

A. 24
B. 12
C. 6
D. 3

Correct answer: B

Rationale: The LCM is the smallest number that is a multiple of both 4 and 6. We can find this by listing out the multiples of each number until we find a common value. In this case, 12 is the first number divisible by both 4 (4 x 3) and 6 (6 x 2).

3. Identify the noun clause in the sentence: "My biggest fear is that I wouldn't live life to the fullest."

A. "My biggest fear"
B. "that I wouldn't live life to the fullest"
C. "life"
D. "the fullest"

Correct answer: B

Rationale: Option B functions as the object of the verb "is," making it a noun clause.

4. What is the mass number of an element?

A. The number of protons in an atom's nucleus.
B. The number of neutrons in an atom's nucleus.
C. The number of electrons in an atom's valence shell.
D. The number of isotopes of an element.

Correct answer: B

Rationale: The mass number of an element is the total number of protons and neutrons in the nucleus of an atom. It is represented by the symbol A and is written as a superscript to the element's symbol. For example, the mass number of carbon-12 is 12, which means that a carbon-12 atom has 6 protons and 6 neutrons in its nucleus.

5. The phrase "echo chambers" refers to

A. Social media groups focused on discussing technical topics.
B. Online communities where diverse viewpoints and opinions are encouraged.
C. Environments where individuals are primarily exposed to information that reaffirms their existing beliefs.
D. Online platforms specifically designed for spreading misinformation.

Correct answer: C

Rationale: Echo chambers occur when individuals primarily encounter information that confirms their existing biases, potentially limiting their exposure to alternative perspectives.

6. An IV drip delivers medication at a rate of 40 drops per minute. Each drop contains 0.05 milliliters of the medication. How many milliliters of medication are delivered in one hour?

A. 12 milliliters
B. 24 milliliters
C. 60 milliliters
D. 120 milliliters

Correct answer: B

Rationale: First convert minutes to hours (1 hour * 60 minutes). Then, multiply the number of drops per minute (40 drops/minute) by the volume per drop (0.05 ml/drop) and by the conversion factor (60 minutes/hour) to find the total volume delivered: 40 drops/minute * 0.05 ml/drop * 60 minutes/hour = 24 milliliters.