Which of the following statements best describes the true nature of natural selection?
A) Only the strongest survive.
B) The strong eliminate the weak in the race for survival.
C) Organisms change by random chance.
D) Heritable traits that promote reproduction become more frequent in a population from one generation to the next.
Answer: D
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Which of the following are the hosts for most enveloped viruses?
A) Bacteria B) animals C) Archaea D) fungi
The birth rate in a population of 400 feral cats
is 100 per year. The death rate in this same population is 40 per year. The per capita growth rate of this population of feral cats is ___ per cat per year.
a. .25 b. .1 c. .15 d. .4 e. 0
Which of the following matches enzyme components with their correct definition and/or function?
a. Coenzymes are the organic cofactors important to enzyme activity. b. Apoenzymes are the non-protein component of an enzyme. c. Apoenzymes are typically inorganic molecules, such as iron, zinc, or magnesium. d. Cofactors are the protein components of enzymes.
It is common for a normal, healthy individual to carry potentially pathogenic organisms in their upper respiratory tract
Indicate whether the statement is true or false