The area in which there is a spark discharge in the accompanying figure represents ____
a. sunlight energy in the environment.
b. heat energy in the environment.
c. electrical energy in the environment.
d. ionizing radiation in the environment.
e. the explosion of the hydrogen gas to release energy for the reactions.
ANSWER: c
You might also like to view...
Which of the following could possibly account for an increase in Hox genes and an increase in animal body complexity?
A. Different Hox genes are expressed in different regions of the body. B. Hox genes duplicated once during animal evolution. C. Duplication of Hox genes and duplication of Hox gene clusters throughout animal evolution. D. Inversion of Hox genes about 600 million years ago. E. The creation of Hox gene clusters through inversion and uncontrolled replication.
Single-celled parasites known as ____ infect insects, fish, and humans (especially those with compromised immune
systems).
a. amoebae b. red algae c. microsporidia d. dinoflagellates e. apicomplexans
The process of ____ is the flow of heat between atoms or molecules in direct contact
a. conduction b. radiation c. evaporation d. convection e. radiative cooling
The fact that DNA is the molecule containing the genetic code for all life on Earth is a part of
A. evidence of artificial selection. B. biogeographical evidence. C. comparative embryological evidence. D. comparative anatomical evidence. E. biochemical evidence.