Pollination is the arrival of pollen grains from the ________ on a receptive ________
a. anther / stigma
b. style / stigma
c. stigma / anther
d. sepal / style
a
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Evolutionarily, the jaws of vertebrates developed from:
A. the circular mouth of lampreys B. the last pharyngeal arch of jawless fishes C. the third pharyngeal arch of jawless fishes D. the operculum E. the claspers
Fertilization typically occurs in the ____
a. ovary b. oviduct c. uterus d. cervix e. vagina
Which of the following will increase the loading of oxygen onto the hemoglobin molecule within the lungs?
A) decreased pH B) decreased hydrogen ion concentration C) increasedPCO2 D) increased 2,3-bisphosphoglycerate (2,3-BPG) E) increased body temperature
The pleural cavity is located:a
between the pleural membranes. b. inside the innermost pleural membrane. c. outside the outermost pleural membrane. d. between the right lung and the left lung. e. within the bronchioles.