Gross anatomy
What will be an ideal response?
Compact and spongy bone
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Which type of body plan is characteristic of a dog?
a. bilateral symmetry b. radial symmetry c. asymmetry d. indeterminate symmetry
Research on conditions that are relatively new to human populations such as myopia, breast cancer, and obesity support the conclusion that ________
A) human populations have accumulated a number of mutations that have become fixed by genetic drift B) the changes in human lifestyle account for all of the increase in frequencies of these conditions C) these conditions are indeed "diseases of civilization" and are likely caused by the interaction between genes (genetic susceptibility) and novel environments D) these human conditions are mere artifacts of the way in which they have been evaluated
Most triploid zygotes arise from
A. fertilization of a diploid egg by a normal haploid sperm. B. fertilization of a normal haploid egg by a diploid sperm. C. fertilization of a normal haploid egg by two sperm. D. nondisjunction during the zygote's first mitotic division. E. fusion of the zygote with an unfertilized egg.
_____ is the most abundant organic compound on Earth.
Fill in the blank(s) with the appropriate word(s).