Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What will be an ideal response?
This question asked you to apply the definition of electronegativity to predict the polarity of a
covalent bond. If you got the correct answer, great job! If you got an incorrect answer, where did the
process break down? Did you know what electronegativity and polar bonds were? Did you know to
compare the difference in electronegativity between the two atoms to determine the polarity of the bond?
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Not all animals are able to hear. The sense of hearing exists in organisms of the phyla
_____ arthropods. _____ mollusks. _____ vertebrates. _____ cnidarians.
A gradual change in phenotype across an environmental gradient, such as white-tailed deer changing gradually in size from large in the north to small in the south, is referred to as
A) migration. B) a subspecies. C) a cline. D) an ecotype.
A person hears a sound coming from a hole in the ground. Sometime later a groundhog is seen emerging from the hole in the ground. The person suspects that the sounds were made by the groundhog. The underlined portion of this story is best described as a(n)
A. experiment. B. hypothesis. C. observation. D. test of a hypothesis.
Which of the following is a tube that carries urine from the kidneys to the urinary bladder in a mammal?
a. loop of Henle b. ureter c. urethra d. distal tubule e. proximal tubule