All of the following are inputs to the electron transport chain EXCEPT

a. an H-carrier.
b. oxygen.
c. ADP.
d. water.


D

Biology & Microbiology

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Which of the following is the earliest form of seedless vascular plant?

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Which of these three mechanisms illustrates

facilitated diffusion? a. A b. B c. C d. both A and B e. none of these

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A pine tree is

a. an angiosperm. b. a haploid plant body. c. a sporophyte. d. the dependent stage in the conifer life cycle. e. all of these.

Biology & Microbiology

The ________ bones are two small bones found at the corner of the eyes that have a duct system that drains tears from the eyes into the nasal chambers

A) lacrimal B) frontal C) occipital D) temporal

Biology & Microbiology