Which term specifies a relationship between two organisms that provides benefits to both?

a. symbiotic
b. mutualistic
c. pathogenic
d. systematic


b. mutualistic

Biology & Microbiology

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A function of antibodies is to _____

A) inject toxins into living pathogens B) secrete cytokines that attract macrophages to infection sites C) release perforins to disrupt infected cells D) act as Toll-like receptors E) mark pathogenic cells for destruction

Biology & Microbiology

What are the most common routes for the administration of a vaccine?

a. Inhaled or orally b. Topically or injected c. Orally or injected d. Inhaled or injected e. Topically or orally

Biology & Microbiology

C14 is a radioactive isotope, and it turns into _____________ when it decays. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

Which of the following microbes produces a protein that kills a variety of insect pests?

A. Pseudomonas B. Haemophilus influenzae C. Bacillus thuringiensis D. Thermus aquaticus E. Plasmodium falciparum

Biology & Microbiology