An atom with more protons than electrons is called a(n) __________. Fill in the blank(s) with the appropriate word(s)
ANS: cation PTS: 1 DIF: Moderate
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The primary thermostat of the body is located in the:
a. heart b. hypothalamus c. medulla oblongata d. cerebellum e. thyroid gland
In a monohybrid cross with complete dominance, the F2 offspring should contain ____
a. two different phenotypes and two different genotypes b. two different phenotypes and three different genotypes c. three different phenotypes and two different genotypes d. three different phenotypes and three different genotypes e. two different phenotypes and one genotype
Thymine and cytosine differ from adenine and guanine in that ________
A) thymine and cytosine are single-ring structures, whereas adenine and guanine are double-ring structures B) thymine and cytosine are only found in DNA, whereas adenine and guanine are found in both DNA and RNA C) thymine and cytosine are only found in DNA, whereas adenine and guanine are only found in RNA D) thymine and cytosine are larger nitrogenous bases
Prokaryotes that obtain their energy by oxidizing hydrogen sulfide in volcanic vents are
A. chemoheterotrophs. B. chemoautotrophs. C. photoautotrophs. D. photoheterotrophs.