Which of the following eye disorders is not necessarily correlated with age?
1.cataracts
2.macular degeneration
3.trachoma
4.glaucoma
5.the need for bifocal lenses
3
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The time in the history of Earth when evolution was progressing at the most rapid rate, as evidenced
by fossils such as those of the Burgess Shale, is the:a. Cambrian period. b. Ordovician period. c. Silurian period. d. Devonian period. e. Carboniferous period
What color of light is not strongly absorbed by chlorophyll?
A. red B. violet-blue C. green D. yellow-orange
Why are lichens good barometers of the presence of air pollution?
What will be an ideal response?
One difference between eukaryotic and prokaryotic cells is that eukaryotic cells ________ prokaryotic cells.
A) have DNA, which is lacking in B) have membrane-enclosed structures called organelles, which are lacking in C) have a plasma membrane, which is lacking in D) have a nucleoid region, which is lacking in