Deaths from infectious diseases are generally lowest in the ___ stage of the Demographic Transition
What will be an ideal response?
4th
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The advantage(s) of biotechnology is (are) that it
A) has improved environments through reduced use of agricultural chemicals. B) enabled the development of plants outside of their natural/most suitable habitats. C) provides small farmers with the means to sustain their livelihoods. D) isn't more susceptible to disease. E) both isn't more susceptible to disease and has improved environments through reduced use of agricultural chemicals.
What makes light absorption in diatoms more effective than just using chlorophyll?
a. Surface-to-volume b. Microbial loop c. Frustule perforations d. Accessory pigments
____________________ mirages occur when the air near the ground is much warmer than the air above, so objects not only appear to be lower than they really are, but also (often) inverted
Fill in the blank with correct word.
Continents differ in appearance from ocean basins because
A. each has its own climate. B. each contains different fossils. C. each has its own geologic history.