In the Schaffer-Fulton endospore stain, heat is a (fixation/mordant/staining) step
What will be an ideal response?
staining
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When water molecules exposed to the air form hydrogen bonds between adjacent water molecules below and beside
them, molecules in the upper layer become more resistant to separating from those underneath. This property of water is known as ____.
a. cohesion b. adhesion c. a hydration layer d. a water lattice e. surface tension
Which animal is likely to have the circulatory pattern shown in the figure?
A. frog
B. mammal
C. bird
D. fish
E. crocodile
Xylem
a. involves mainly the shoot system. b. includes lignin-reinforced cell walls. c. involves the roots. d. involve stomata. e. includes pipelines that conduct water from soil to leaves.
Figure 44.6
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The following question refers to the figure above illustrating logistic growth.
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The initial carrying capacity of an environment is indicated by ____.
A. A B. B C. C D. D E. E