Which of the following is found in the intestine of termites and produces enzymes needed to digest wood particles?
A. Giardia
B. Nyctotherus
C. Trichomonas
D. Trichonympha
Answer: D
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Which occurs only in anaerobic metabolism of glucose?
A. acetyl CoA formation B. glycolysis C. lactate fermentation D. oxidative phosphorylation E. citric acid cycle
What occurs during Metaphase II?
What will be an ideal response?
A mistake happens during the cell cycle of a given cell, and it is allowed to enter the M phase directly from the G1 phase, skipping the S and G2 phase. What would you expect to be wrong with this cell at the beginning of mitosis?
a) The cell would have 1/2 the amount of DNA it should have. b) The cell would have 2x the amount of DNA it should have. c) The chromatids would not separate properly and one daughter cell would have more chromosomes than it should. d) The cell is considered haploid instead of diploid.
On the basis of this figure, multicellularity has evolved:
a. once. c. three times. b. twice. d. at least six times.