Inflammation of the thin clear membrane lining the eyelid and eye is properly termed
A) keratititis
B) trachoma
C) ophthalmia neonatorum
D) conjunctivitis
E) whitlow
D
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Plant behaviors are not always easily observed because they:
A. may occur at short intervals B. are mostly internal to the plant C. are mostly caused by internal organisms D. are not observable by the human eye E. are only observable with a microscope
Which of the following makes up most of an old tree trunk?
A) Secondary phloem B) Primary phloem C) Vascular cambium D) Primary xylem E) Secondary xylem
Which of the following statements is NOT a correct description of an advantage that seeds have over spores?
A. Seeds can remain dormant and survive unfavorable conditions. B. Seeds are produced in greater numbers than spores. C. Seeds are tougher and can resist abrasion better than spores. D. Seeds are more resistant to pathogens. E. Production of seeds does not require water as a medium for sperm transport.
In the biochemical oxygen demand (BOD) test, the factor that should limit biological activity is ________.
A. phosphorus B. carbon C. nitrogen D. oxygen