How much of the human genome actually codes for protein products?
a. 2%
b. 26%
c. 48%
d. 71%
e. 100%
ANSWER: a
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____ is the process by which diverging populations undergo natural selection in favor of enhanced pre-zygotic isolation
Fill in the blank with the appropriate word.
If you see a male calico cat, you can be fairly certain that his diploid cells have a sex chromosome combination of
____.
a. XYY b. XY c. XX d. XXY e. XO
The ____ phylum of seedless vascular plants has about 1000 known living species, including those in the genera
Lycopodium and Selaginella; the gametophyte of some of these species cannot photosynthesize, and instead uses mycorrhizae to obtain nutrients
a. Hepatophyta b. Monilophyta c. Bryophyta d. Lycophyta e. Anthocerophyta
Maintaining your body's internal temperature within narrow tolerable range is one example of:
a. sebaceous glands working to lower your body temperature. b. stasis. c. homeostasis. d. compensation. e. hydrolysis.