In the following sentence, draw a caret (^) to show where any missing commas should be inserted, and circle any unnecessary commas. Example 1. Richard^whose family is originally from Scotland^competes in the annual Scottish Games$\text{\textcircled ,}$ every year.

Did you have Ms. Rocha for biology or Mr. Price the same teacher, my brother had?

Medical ultrasound often uses a frequency of 3.5 MHz. What is the wavelength of these ultrasound waves? Assume that the speed of sound waves in the human body is 1,500 m/s, the same as the speed of sound in salt water.

More than one choice may apply. Which of the following is (are) true concerning human spermatids? a. They are the female gametes. b. They contain 46 chromosomes c. They contain 23 chromosomes. d. They are motile.

Are All Metabolic Reactions at Equilibrium?
(a) Phosphoenolpyruvate (PEP) is one of the two phosphoryl group donors in the synthesis of ATP during glycolysis. In human erythrocytes, the steady-state concentration of ATP is $2.24 \mathrm{mM}$, that of ADP is $0.25 \mathrm{mM}$, and that of pyruvate is $0.051 \mathrm{mM}$. Calculate the concentration of PEP at $25^{\circ} \mathrm{C}$, assuming that the pyruvate kinase reaction is at equilibrium in the cell.
(b) The physiological concentration of PEP in human erythrocytes is $0.023 \mathrm{mM}$. Compare this with the value obtained in (a). Explain the significance of this difference.

A survey by Accenture indicated that 64% of millennials as compared to 28% of baby boomers prefer “hybrid” investment advice—a combination of traditional advisory services and low-cost digital tools—over either a dedicated human advisor or conventional robo-advisory services (computer-generated advice and services without human advisors) alone.

Suppose that the survey was based on 500 respondents from each of the two generation groups.

What is the probability that a randomly selected respondent prefers hybrid investment advice and is a baby boomer?

Indicate whether each of the following statements relating to aspirin and its effects on the human body is true or false.

a. A “regular” aspirin tablet contains $500 \mathrm{mg}$ of aspirin held together with an inert starch binder.

b. Within the human body, aspirin undergoes hydrolysis to produce two different carboxylic acids.

c. Salicylic acid, rather than aspirin itself, is the “active ingredient” associated with aspirin use.

d. Aspirin increases the time it takes for blood to coagulate.

According to one critic, Teasdale’s poetry “expresses the fragility of human life where the only real certainty comes from nature.” How does this comment apply to “There Will Come Soft Rains”?

You are working in a biology lab and learning to use a new ultracentrifuge for blood tests. The specifications for the centrifuge say that a red blood cell rotating in the ultracentrifuge moves at 470 m/s and has a radial acceleration of 150,000 g’s (that is, 150,000 times $9.8 \mathrm{m} / \mathrm{s}^{2} )$ The radius of the centrifuge is 0.15 m. You wonder if this claim is correct. Support your answer with a calculation.

Identify the italicized clause in the sentence below as either independent or subordinate.

By the early $20$th century, many observers of human behavior had come to believe in the basic sameness of all people.

In biology, the surface area- to-volume quotient Q of a single spherical cell is given by the formula

$$Q = \frac { 3 } { r }$$

where r is the radius of the cell. Suppose you need to calculate the diameters of cells given the surface-area-to-volume quotients of the cells. Given that d = 2r, explain how to write a formula for the diameter d of a cell given its surface-area-to-volume quotient.

Rewrite the following sentence to make the comparisons clear and correct. For the three sentences that have no comparison problems, write Correct.

Your chances of a successful operation with a robot are as good with a human surgeon, if not better.

Indicate whether each of the following statements relating to brown fat production and its use in the human body is true or false.

a. Adults have more brown fat tissue than do young children.

b. Brown fat production is a mechanism by which the human body adapts to cold environs.

c. ATP production cannot be disassociated from the operation of the ETC chain.

d. The protein thermogenin present in brown fat tissue significantly increases ATP production associated with the ETC.

Are there any questions about human or animal behavior that you would really like to answer? Generate a hypothesis and briefly describe how you would conduct an experiment to answer your question.

A human has 46 chromosomes. This is $5 \frac{3}{4}$ times the number of chromosomes of a fruit fly. Write a division expression to find how many chromosomes a fruit fly has.