An atom that has an electrical charge is called a(n)
a. molecule.
b. isotope.
c. ion.
d. proton.
e. element.
Ans: c. ion.
You might also like to view...
Which of the following is NOT true of human gut microbes?
A) The population size is low, but diversity is high. B) They produce and excrete amino acids. C) They help catabolize polysaccharides. D) They are involved in the "maturing" of the gastrointestinal tract.
Scientists recently cloned Louis Pasteur and put him back to work in a modern lab. He promptly developed a gel that breaks down proteins. Since he hasn't been around for some time,
he's unsure what the best application for his invention might be. Help him out. What pathogenic item in this gel would be most effective and safe at eliminating? A. Viroids on the surface of agricultural plant tissues B. Prions inside the central nervous system of cows C. Viruses on the surface of the skin D. Bacteria in the intestines of human beings E. The fungus that causes athlete's foot between people's toes
When light rays converge behind the retina, it is known as ____
a. astigmatism b. color blindness c. nearsightedness d. macular degeneration
e. farsightednessA VNTR is:
a) used in biotechnology when creating a clone. b) produced when a mutation occurs in a sperm-producing or egg-producing cell. c) produced when a mutation occurs in a non-sex cell. d) a highly variable section of an individual's DNA. e) a gene that codes for a biochemical trait, rather than a structural trait.