If a hiker picked up a mollusk on a trail in a rain forest, what class would it belong to?
A. Polyplacophora
B. Cephalopoda
C. Gastropoda
D. Bivalvia
Answer: C
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Place the following cell types in the correct order during the differentiation of a hematopoetic stem cell (HSC) into a macrophage. Some may be used once or not at all.
I. megakaryocyte II. lymphoid progenitor III. macrophage IV. hematopoetic progenitor V. myeloid progenitor VI. monocyte VII. hematopoetic stem cell A. VII, IV, V, VI, III B. IV, VII, V, VI, III C. IV, VII, II, VI, III D. VII, IV, V, II, III E. VII, IV, II, IV, III
Identify and briefly describe the process(es) of cellular respiration that occur in the mitochondria. Indicate the amount
of ATP, NADH, and FADH2 produced in each process. What will be an ideal response?
Answer the following questions true (T) or false (F)
1. Polyploidy is better tolerated in plants than in animals. 2. A single nondisjunction event results in some gametes with more chromosomes and some gametes with fewer chromosomes. 3. The structure of a molecule can be revealed by bombarding it with X rays.