Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
What will be an ideal response?
Because the Na+ and Cl-ions interact with water molecules through the partial charges on water,these interfere with the ability of water molecules to hydrogen bond with each other.
Because water molecules can no longer form hydrogen bonds with each other, they cannot form a lattice and ice does not form.
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Which one of the following terms applies to the phylum Cnidaria?
A. radial symmetry B. pseudocoelomate C. Parazoa D. triploblastic E. protostome
In yeasts, what do we call the locations where replication begins?
a. single strand binding proteins b. telomeres c. autonomously replicating sequences d. promoter sequence
The sense organ in Figure 43-1 includes receptor cells referred to as:
a. otoliths, structures labeled 1. b. hair cells, structures labeled 2. c. statocysts, structures labeled 5. d. Meissner corpuscles, structures labeled 3. e. Merkel discs, structures labeled 4.
Pepsin is an enzyme that works in the stomach. Pepsin breaks down proteins and is most efficient in an acidic environment. How will the addition of an antacid into the stomach affect pepsin's efficiency?
A) Pepsin will work better with the addition of the antacid. B) Pepsin will not work as well because the stomach contents will become more basic. C) Pepsin will not work as well because the stomach contents will become more acidic. D) Pepsin will work just as efficiently because the antacid does not change the stomach contents.