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

Biology & Microbiology

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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

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Fertilization typically occurs in the ____

a. ovary b. oviduct c. uterus d. cervix e. vagina

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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

Biology & Microbiology

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.

Biology & Microbiology