The la brea tar pits are
a. a valuable source of petroleum
b. filled with tar made from...
Biology, 05.10.2019 11:30 CHRONICxDJ
The la brea tar pits are
a. a valuable source of petroleum
b. filled with tar made from mammals
c. filled with asphalt
d. a and b only
Answers: 1
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The green colored pigment in chloroplasts is? a. nitrogen b. chlorophyll c. chlorophorm d. chlorofloromethane
Answers: 2
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Define adaptation. why do organisms adapt? give an example.
Answers: 2
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1. beginning with all chambers of the heart in the "relaxed" phase, describe the cardiac cycle in mammals, with systole and diastole of the atria and ventricles. for each time point in the cycle you select, state the following: • whether the atria and ventricles are contracting or relaxing • whether the av valves and semilunar valves are closed or open • whether the pressure in the atria and ventricles is high or low
Answers: 2
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