Which one of the following is TRUE regarding deoxyhemoglobin?
A) Deoxyhemoglobin delivers oxygen to tissues that have a high oxygen demand.
B) Deoxyhemoglobin has a bright red color.
C) Deoxyhemoglobin is found in blood returning to the heart from the lower extremities.
D) Deoxyhemoglobin would form in organs with a high concentration of oxygen, such as the lungs.
E) Deoxyhemoglobin is located in white blood cells, unlike oxyhemoglobin.
C
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a. recessive b. homozygous c. hybrid d. heterozygous e. dominant
The human respiratory surface consists of
a. the walls of alveoli and pulmonary capillaries b. the walls of alveoli and pulmonary capillaries and their basement membranes c. the walls of bronchioles, alveoli, and capillaries d. the walls of bronchioles, alveoli, capillaries, and their basement membranes e. the walls of alveoli
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A) trophozoites. B) eggs. C) spores. D) cysts.
Cotyledons are the __________ of a plant
a. developing seeds b. first developing leaves c. gametes d. stored energy