Ecology is best defined as the study of ________.
A. the interactions between living organisms and their environments
B. the relationships between parasites and their hosts
C. plant succession
D. interactions between predator and prey populations
Answer: A
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Which one of the following RNA types is most abundant in mammalian cells?
A. mRNA B. tRNA C. miRNA D. rRNA E. snRNA
Which situation has contributed to widespread antibiotic resistance?
A) doctors underprescribing antibiotics that would eradicate cold-causing bacteria B) patients finishing their antibiotic prescription even though they feel better C) farmers using an abundance of antibiotics to treat feedlot animals D) chefs cooking meat thoroughly in restaurants
Adaptive immunity is sometimes also called acquired immunity. Which of the following statements provides a basis for the alternative name?
A) Lymphocytes of the adaptive immune system are highly specific for a single epitope. B) Activated lymphocytes produce daughter cells that are identical in specificity and function. C) To become activated, lymphocytes require exposure to the epitope for which they are specific. D) Activated lymphocytes may persist for years in the body. E) Lymphocytes reactive to normal body components are removed.
The basic building block of a protein is called a(n)
What will be an ideal response?