The ability of a nonpathogen or weakly pathogenic microorganism to cause disease primarily in an immunocompromised host is termed a(n) ______ infection.
A. virulent
B. opportunistic
C. antagonistic
D. pathogenic
B. opportunistic
You might also like to view...
In covalent bonds, ____
a. atoms share electrons b. atoms give up electrons c. atoms accept electrons d. electrons cannot be shared equally e. electrons are always shared equally
Which organelle would you expect to find in plant cells but not animal cells?
A. mitochondrion B. ribosome C. chloroplast D. smooth endoplasmic reticulum
Abiotic factors that contribute to the great number of biotic factors in tropical rain forests include...
a) ample water and warm temperatures b) cloud cover and symbiotic associations c) nutrient-rich soils and high humidity d) variable temperatures and lack of parasites
Which term refers to the selectively permeable barrier that is present in the innermost layer of the root cortex?
a. pericycle b. root hairs c. endodermis d. quiescent centre