Pathogenic bacteria are becoming increasingly deadly as
Select one:
a. humans refuse to wash their hands frequently enough.
b. antibiotic resistance builds when more and more humans take unnecessary antibiotics.
c. they pick up genes from humans, allowing them to fool human body cells into thinking that they are harmless.
d. humans lose their natural immunity to many pathogens through lack of exposure.
e. there are an increasing number of side effects from antibiotics.v
b. antibiotic resistance builds when more and more humans take unnecessary antibiotics.
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If a specimen contains 30% adenine in its DNA then how much cytosine will there be?
A. 40% B. 30% C. 20% D. 10% E. Cannot be determined.
"Vertebrates" refers to animals that possess
a. hair. b. mammary glands. c. the ability to give birth to live young. d. lungs. e. a backbone.
How many chromatids are present in prophase I in a diploid cell in which 2n = 12?
A) 6 B) 12 C) 24 D) 48 E) Can't tell–more information is required.
Vaccines to prevent fungal infection are widely available because attenuated strains are safe.
Answer the following statement true (T) or false (F)