Fast-twitch muscle fibers ________.
Fill in the blank(s) with the appropriate word(s).
Answer: have few mitochondria
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The land mass labeled 2 in Figure 18-2 is called:
a. Eurasia.
b. Laurasia.
c. Antarctica.
d. Gondwana.
e. Pangea.
Which cellular structure is unique to plant cells?
A) Ribosome B) Chloroplasts C) Mitochondria D) Plasma membrane
Queen Elizabeth II of England is a descendant of Edward VII of England, who was the son of Queen Victoria. Edward VII did not have hemophilia
Prince Philip, who is married to Queen Elizabeth II, is a descendant of Alice, the daughter of Queen Victoria. Alice was a carrier of hemophilia. However, Prince Philip does not have hemophilia. What can you infer about the children of Queen Elizabeth II and Prince Philip? A) None of the children could have the hemophilia allele. B) Only the sons could have the hemophilia allele. C) Only their daughter could have the hemophilia allele. D) Any one of the children could have the hemophilia allele.
Which of the following is unique to mitosis and not a part of meiosis?
A) Homologous chromosomes behave independently. B) Homologous chromosomes cross over. C) Chromatids are separated during anaphase. D) Homologous chromosomes pair, forming bivalents.