What evidence does the author provide to support the section's premise that a bank's primary activity is lending money?

Which of the following cells in spermatogenesis is diploid? a. primary spermatocyte, b. secondary spermatocyte, c. spermatid, d. sperm.

A $12-\mathrm{V}$ automobile battery provides the thousands of volts needed to produce a spark across the gap of a spark plug. Which of the following mechanisms is involved? (a) The secondary loop connected to the spark plug has many more turns than the primary loop attached to the battery. (b) The current in the primary coil is reduced quickly. (c) An iron core increases the magnetic flux through the primary and secondary coils. (d) All three mechanisms are involved. (e) Only mechanisms (a) and (b) are involved.

True or false: Primary succession occurs in an ecosystem that has been partially disturbed by an event such as a forest fire.

Identify each of the four primary tissue types, and give an example of where in the body that tissue would be found.

A survey of 546 women found that more than 56% are the primary investor in their household. Identify the population and the sample.

.Why do you think the large intestine is not regarded as a primary excretory organ, given the definition of excretion?

Write equations for the substitution reaction of 1-bromobutane, a typical primary haloalkane, with the following reagents:
(a) $\mathrm{NaOH}$;

The cattle in the diagram represent (1) primary consumers (2) secondary consumers (3) producers (4) autotrophs

After the Challenger disaster in 1986, a study was made of the 23 launches that preceded the fatal flight. A mathematical model was developed involving the relationship between the Fahrenheit temperature x around the O-rings and the number y of eroded or leaky primary O-rings. The model stated that $y=\frac{6}{1+e^{-(5.085-0.1156 x)}}$ where the number 6 indicates the 6 primary O-rings on the spacecraft. What is the predicted number of eroded or leaky primary O-rings at a temperature of $60^{\circ} \mathrm{F}$?

Analyzing Primary Sources

In The Grapes of Wrath, why does John Steinbeck compare the migrating farmers to ants?

How many possible primary structures exist for a small polypeptide containing four individual amino acids?

What are the five primary tastes? Describe how each type of tastant causes depolarization of a taste cell.

How much is the primary current, $I_\text{P}$, in Fig. 19–40 if the secondary current is $2\text{ A}$?