The structure of a DNA molecule is analogous to a _____
a. paper clip
b. ladder
c. fork
d. rope
e. coiled spring
ANSWER: b
You might also like to view...
What are the three main (abdominal) accessory organs of the human digestive system?
A) liver B) large intestine C) gallbladder D)pancreas E) esophagus
If energy gain remained constant over time, the bird would maximize energy gain by staying on the tree forever.
a. true b. false
Mononucleosis ("mono") is usually caused by EBV, or the Epstein-Barr virus. Mono is more common in children than in adults because adults usually have developed ________ toward the virus
A) innate immunity B) adaptive immunity C) passive immunity
"Smart" plants can reduce overuse of fertilizers by
A) using photosynthesis and fungal relationships to generate their own fertilizer. B) informing the grower of a nutrient deficiency before damage occurs. C) slowing the process of minerals washing out of the soils. D) storing fertilizers in their root systems until they are needed.