The first phase in normal cellular respiration and the only one occurring in the cytoplasm is called ________
A) electron transport B) the citric acid cycle
C) glycolysis D) None of the above is correct.
Answer: C
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The heart begins to beat.
Choose the letter of the best match: A. third trimester of pregnancy B. second month of pregnancy C. first month of pregnancy D. second trimester of pregnancy E. third month of pregnancy
Some flowers have distinctive patterns that only reflect ultraviolet light and therefore are invisible to humans. Which statement about such markings is NOT correct?
A. The ultraviolet patterns are highly visible and attractive to bees. B. Carotenoid pigments are responsible for the ultraviolet patterns. C. The ultraviolet patterns often form a conspicuous central bull's eye or identify the best landing sites. D. The ultraviolet patterns repel birds and bats from the flowers. E. Flowers with ultraviolet patterns usually appear yellow or orange to humans.
Which statement is NOT generally characteristic of parasites?
a. They are specialists and usually are able to affect only one variety of hosts. b. They inflict serious injury and kill their hosts. c. Some reside inside their hosts, whereas others live outside their hosts. d. Their host may be a plant as well as an animal. e. Plants as well as animals can be parasites.
Which of the following organelles is not part of the endomembrane system?
A) ribosome B) endoplasmic reticulum C) Golgi apparatus D) lysosome E) secretory vesicle