Which condition(s) increase the rate of diffusion through a semipermeable membrane?
I.Steep concentration gradients
II.High temperatures
III.Large molecules

A) I only
B) II only
C) I and II
D) II and III
E) I, II, and III

From the union perspective, the bureaucratic system of collective bargaining contracts may achieve stability at the expense of rank and file involvement and activism.

Phillip is breathing at approximately 40 ventilations per minute. What is the respiratory center indicating?

A) low oxygen concentration in the lungs
B) high carbon dioxide concentration in the blood
C) low oxygen concentration in the blood
D) the firing of the intercostal nerves
E) stretch receptors in the alveolar walls

The photoreceptors in the photoreceptor layer of the retina face the vitreous chamber.

What is heterozygote advantage? Identify and briefly explain one example of this.

The difference between spongy bone and compact bone is that spongy bone

A) is found near the surfaces of bone, while compact bone is found interiorly.
B) consists of osteons, while the compact consists of thin strands of bone.
C) is filled with red bone marrow, while compact bone is not
D) occupies the diaphysis, while compact bone occupies the epiphysis.
E) is involved in bone development, while compact bone is not.