The balance between osteoblast and osteoclast activities is an example of homeostasis and is regulated by the action of two hormones.
a. true
b. false
Answer: a. true
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Differences in domesticated animals over relatively short periods of time most likely occur through:
A. natural selection B. artificial selection C. adaptation D. experimental selection E. evolution
Which of the following would be most effective and practical for routine home disinfection of a toothbrush between uses?
A. Hydrogen peroxide B. 70% Isopropyl alcohol C. Bleach D. Glutaraldehyde
Cytoplasmic localization refers to ________
a. the uneven distribution of cellular components within the cytoplasm b. the consumption of the cytoplasm during embryonic development c. the even distribution of cellular components within the cytoplasm d. the division of the cytoplasm e. the formation of additional cytoplasm
In a breeding experiment with yellow and green true-breeding parents, Mendel took yellow seeds from his F2 generation, planted them, and self-pollinated the flowers to produce an F3 generation. He saw that some produced all yellow seeds, and some
produced a mix of yellow and green seeds. How can these results be explained? What will be an ideal response?