Study the figure below and predict which of the following components would best indicate the overall biotic health of an aquatic ecosystem?
a.) particulate amounts
b.) sedimentation rates
c.) species abundance
d.) water quality

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

Approximately what portion of the foods that we eat have been genetically modified in some way? a.fewer than 10% b.about 50% c.nearly 100%

The pronunciation aid that determines the stress placed upon a syllable is the