A(n) ____ is produced by introducing a gene for a viral surface protein into a nonpathogenic vector.

A) new pathogen
B) new life form
C) inactivated pathogen
D) nonpathogenic vector
E) recombinant vaccine

What are the main cells of the lymphatic system?

A) lymph nodes
B) red blood cells
C) lymphocytes
D) macrophages

Which of the following molecules is inorganic?

A) CH₄
B) CO₂
C) C₆H₁₂O₆
D) C₁₂H₂₂O₁₂
E) C₆H₆

Which of the following is an exploited product of lactate fermentation?

A) Butter
B) Beer
C) Yogurt
D) Ice cream
E) Loaf of bread

Compare transpiration and translocation, and be sure to cover the five points below.
1. Principal substance(s) transported

2. Direction of transport

3. Tissue through which transport occurs

4. Name of model that explains the process

5. Does the plant expend energy to carry out the process?

Continuous conduction of action potentials means that

A) once an action potential is created, it moves in both directions along the axon.
B) the whole axon depolarizes at the same time.
C) an action potential in one site generates local currents causing depolarization to threshold at the adjacent site.
D) an action potential is conducted from one node of Ranvier to the next node.