You inject a dye into an animal cell and observe that it moves into adjacent cells. This would occur through _____.
A. gap junctions
B. tight junctions
C. desmosomes
D. plasmodesmata
E. adherens junctions
A. gap junctions
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Ecological relationships reflect the __________ traits of organisms in nature
A. behavioral B. physiological C. biomechanical D. behavioral and physiological E. behavioral, physiological, and biomechanical
If a cell begins mitosis with 36 chromosomes, there will be ________ chromosomes in each cell after mitosis, and each daughter cell will be ________ genetically
A) 36; identical B) 36; different C) 18; identical D) 18; different
Which of the following describes the fate of most of the water taken up by a plant?
a) It is used as a hydrogen source in photosynthesis. b) It is used as a solvent. c) It makes cell elongation possible. d) It is lost during transpiration. e) It is used to keep cells turgid.
Chloroplasts contain disklike membranous sacs arranged in stacks called
A) stroma. B) grana. C) thylakoids. D) vacuoles. E) cristae.