Which of the following pairs is mismatched?
A) nigrosin - negative stain
B) methylene blue - simple stain
C) acidic dye - capsule stain
D) basic dye - negative stain
E) crystal violet - simple stain
D
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Identify three ways in which the evolution of photosynthetic autotrophs affected either the atmosphere or other
organisms. What will be an ideal response?
Each answer option below lists terms that classify cell types according to their developmental potential. Which of the options lists the terms from those capable of differentiating into the greatest number of different specialized cells to those capable of differentiating into the least number of different specialized cells?
a. multipotent, pluripotent, totipotent b. pluripotent, totipotent, multipotent c. totipotent, multipotent, pluripotent d. totipotent, pluripotent, multipotent e. multipotent, totipotent, pluripotent
Defensive proteins can assist the immune response by ________
A) helping viruses reproduce B) directly destroying pathogens C) reducing inflammation D) increasing lymph production
Populations of organisms are constantly evolving, which means that they are always
A) becoming more like humans. B) at equilibrium. C) changing. D) improving. E) getting bigger.