When atoms gain or lose electrons, they become negatively or positively charged. These negatively or positively charged atoms are known as
A. isomers.
B. unstable atoms.
C. ions.
D. isotopes.
Answer: C
You might also like to view...
A DNA molecule containing 32% thymine would contain how much cytosine?
A. 18% B. 32% C. 36% D. 64%
English ivy (Hedera helix) and wintercreeper (Euonymus fortunei) are not closely related, yet both have aerial rootlets that allow them to climb up and stick to bark on trees. What type of evolution is this?
A. Analogous. B. Convergent. C. Radial. D. Bivalent. E. Both analogous and convergent.
When the light reactions occur in the daytime and the Calvin cycle takes place at night, this is
an example of
a. physical separation. b. seasonal separation. c. temporal separation. d. transpiration.
Which statement is true?
A) Hormones travel via specific pathways to specific cells, while electrical signals travel through the blood to all areas of the body. B) Effects of hormones last for brief periods of time, while effects of electrical signals last for long periods of time. C) It takes longer for hormones to be released into the bloodstream and be taken to target cells than it does for electrical signals to be transmitted. D) Hormones have a direct connection with target cells, while electrical signals do not.