The blood pressure in your brachial artery is at its lowest during
A. the time the aorta is maximally stretched.
B. the diastolic period.
C. exercise.
D. the systolic period.
E. ventricular contraction.
B. the diastolic period.
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According to most car mechanics, plain water is the best coolant to use in an engine provided the engine is not being exposed to freezing temperatures. If the car is subject to freezing temperatures then a mixture of water and ethylene glycol (antifreeze) is recommended but it does not cool as efficiently as plain water. Why would ethylene glycol reduce the cooling efficiency of water?
A. Hydrogen bonds in water allow high levels of heat absorption and a large increase in temperature. B. Ethylene glycol raises the freezing point of water. C. Ethylene glycol has a lower heat capacity than water. D. Ethylene glycol has a higher heat capacity than water.
The ability to move chromosomes to the spindle poles requires that the kinetochore microtubules disassemble at their + ends.
a. true b. false
Using PGD to screen for embryos that would become suitable donors for siblings is illegal under any
circumstance. Indicate whether the statement is true or false.
With both incomplete dominance and codominance, one expects heterozygous and homozygous classes to be phenotypically identical
Indicate whether the statement is true or false