Which cell type ranges in size from about 10 - 100 µm, has 80s ribosomes, and has internal compartments bounded by membranes?
A. Bacteria
B. Eukarya
C. Archaea
Answer: B
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Ernst Mayr, the scientist from the New Guinea study on "birds of paradise", knew that the natives
understood speciation because they
a. have a museum with many catalogued specimens. b. have individual names for many of the species. c. have many biologists in New Guinea that studied the speciation. d. helped to achieve the speciation. e. teach speciation theories in school.
How many net ATPs can be made from one molecule of glucose in glycolysis?
a. Six b. Two c. Four d. One
Which statement about skeletal muscle fibers is true?
A) Each muscle fiber is composed of many cells. B) Each muscle fiber is composed of globular proteins. C) Each muscle fiber contains one sarcomere. D) Each muscle fiber contains actin and myosin.
plant cells are joined by narrow, membrane-lined channels called
What will be an ideal response?