A killing frost is an example of a density-independent factor. Indicate whether the statement is true or false
True
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Much of the work of breaking down the food we ingest is done by our:
(a) stomach (b) teeth (c) gut microbiome (d) esophagus
In the presence of carbon dioxide
A. hemoglobin dissociates. B. hemoglobin is not able to bind with bicarbonate. C. hemoglobin changes shape, causing it to give up oxygen more readily. D. the formation of bicarbonate causes oxygen to bind more tightly to hemoglobin.
Your friend does a belly flop into a swimming pool. The stinging pain he feels is most likely due to the
A) pH of the water. B) surface tension of water (caused by the large number of hydrogen bonds that form between water molecules). C) hydrophobic nature of your friend's skin. D) fact that water is a good solvent.
Hoverflies like to drop in at outdoor picnics to sample the sweets, but the reaction of humans is to flee the scene
because of the flies' uncanny resemblance to bees. Thus, the survival of hoverflies is enhanced by ____.
a. mimicry b. display behavior c. warning coloration d. chemical defenses e. camouflage