Which of the following statements about hydra morphology is correct?

A) The hydra has a long single tentacle containing numerous nematocysts.
B) The hydra has a single polyp that is filled with gas and keeps the organism afloat.
C) The hydra is bell shaped and has multiple tentacles.
D) The hydra is a tube-shaped polyp that has two layers of tissue.
E) The hydra is bilaterally symmetrical.

What is the function of the sensory receptor of the skin labeled "C"?
A) Detects deep pressure, vibration, and proprioception
B) Responds to painful stimuli
C) Responds to light touch and superficial pressure
D) Detects touch, involved in 2-point discrimination
E) Detects continuous touch or pressure

Endomysium is a delicate network of loose connective tissue that

A) surrounds each muscle fiber.
B) forms a sheath around a fascicle.
C) is composed of elastic fibers.
D) separates individual muscles.
E) penetrates muscle fibers.

Amanda has no visual impairments, but has noticed that in order to see clearly she must hold books farther from her face in order to read. What is happening to Amanda's vision?

A) Her lens is becoming more rigid with age.
B) Her lens is becoming more opaque with age.
C) Her lens is becoming more convex with age.
D) Her vitreous humor is becoming thicker with age.
E) Her lens is becoming more flexible with age.

The sagittal suture is located between the

A) two parietal bones.
B) frontal and parietal bones.
C) parietal and temporal bones.
D) parietal and occipital bones.
E) frontal and temporal bones.

The primary purpose of fruits is to ____.

A) attract pollinators
B) provide nutrients to seeds
C) protect the seeds from animals
D) protect and disperse the seeds
E) provide nutrients to animals

News and other media portrayals of unions and union workers tend to:

A) Reinforce stereotypes of unions made up of greedy and lazy workers that engage in frequent and violent strikes.
B) Portray union workers as hard-working, self-sacrificing employees.
C) Provide a balanced view of workers and the organizations they work for.
D) Reinforce stereotypes of unions as champions of "the little guy," looking for social justice and workplace representation.