The keystone species in the African savanna is the elephant
Indicate whether the statement is true or false
TRUE
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The membrane that forms a compartment
inside the stroma is the
a. thylakoid. b. mitochondrion. c. lamella. d. plastid. e. tracheid
Both bacteria and fungi digest food by
A) ingesting previously decomposed molecules. B) forming food vacuoles through phagocytosis. C) secreting enzymes and then absorbing the smaller molecules. D) photosynthesis. E) eating only small organisms that they can engulf.
DNA replication can be described as ________, because the resulting daughter DNA consist of one parent strand and one daughter strand
Fill in the blank (s) with the appropriate word(s).
During your annual physical, a nurse takes your blood pressure by wrapping a sphygmomanometer cuff around your upper arm, which modulates the flow of blood through your brachial artery. The nurse then enters a reading of 115/70 in your medical chart. These numbers mean that the
A. pressure in your brachial artery during ventricular contraction is 115, while the pressure during ventricular relaxation is 70. B. nurse heard sounds through the stethoscope only when the pressure in your brachial artery was exactly 115 and again when it was exactly 70. C. diastolic pressure is 115 and the systolic pressure is 70. D. pressure in the ventricles of the heart is 115 when the ventricles are contracting and 70 when the ventricles are relaxing. E. pressure in your brachial artery during ventricular contraction is 115 while the pressure during atrial contraction is 70.