In males, meiosis involves ________ cycle(s) of cell division and produces ________ cells, or gametes, each containing 23 individual chromosomes.
A) one; four
B) two; four
C) one; six
D) two; two
E) four; four
B) two; four
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Polycythemia can occur in association with chronic lung disease
Indicate whether the statement is true or false
Which statement is true regarding osmosis?
A) Water is drawn toward high concentrations of solutes. B) It regulates the transport of gases from high to low concentrations. C) Solutes move from areas of high concentration to low concentration. D) The goal of osmosis is to create a natural solute gradient from high to low.
Which lymphoid organ filters lymph?
A) Thymus B) Lymph node C) Spleen D) Lymphatic vessel
Anatomy students are viewing bone and identifying the sella turcica, pterygoid processes, foramen ovale, foramen spinosum, and the foramen rotundum. What bone are they studying?
A. vomer. B. ethmoid bone. C. palatine bone. D. sphenoid bone. E. occipital bone.