During inspiration (a.k.a. inhalation) of air into the lung of a mammal
A. the chest cavity has a positive pressure.
B. the diaphragm moves upward.
C. the diaphragm contracts.
D. the rib cage moves down.
E. the intercostal muscles relax.
C. the diaphragm contracts.
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DDT and PCBs are no longer legally used anywhere in the U.S
Indicate whether the statement is true or false
DNA that has wrapped around histones and is in a condensed form following interphase is called ________
A) chromatin B) nucleosomes C) chromosomes D) karyokinesis
If a bacterial cell is placed into a hypertonic solution, then
A) Water will move into the cell and the cell will shrink B) Water will move into the cell and the cell will expand C) Water will move out of the cell and the cell will shrink D) Water will move out of the cell and cell will lyse
Which statement best compares aerobic and anaerobic respiration?
a) less atp is generated during anaerobic than during aerobic b) more water is generated during anaerobic than during aerobic c) more O2 is generated during anaerobic than during aerobic