The different populations of all the species in a given area make up a(n):
A. community
B. ecosystem
C. association
D. population
Answer: A
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Assaying bacterial isolates for resistance genes by molecular methods:
a. can detect unknown resistance genes not yet defined. b. cannot detect phenotypic resistance due to a combination of mechanisms. c. means the resistance gene is expressed if found to be present. d. is currently part of the routine clinical mi-crobiology workflow for all isolates.
Plasmodesmata in plant cells are most similar in function to which of the following structures in animal cells?
a. peroxisomes d. extracellular matrix b. desmosomes e. tight junctions c. gap junctions
Briefly describe the life cycle of Drosophila.
What will be an ideal response?
Transpiration in plants requires _____
I) adhesion of water molecules to cellulose II) cohesion between water molecules III) evaporation of water molecules IV) active transport through xylem cells V) transport through tracheids A) I, III, IV, and V B) I, II, IV, and V C) I, II, III, and V D) I, II, III, and IV