The burning of fossil fuels produces carbon dioxide. what effect could a higher concentration of carbon dioxide in the atmosphere have on photosynthesis?
a. photosynthesis rates will likely decrease.
b. photosynthesis rates will likely increase.
c. it will have no effect on the rates of photosynthesis.
d. photosynthesis will no longer occur during the summer months.

The intervention of extraterrestrials has been used to explain the bermuda triangle, a region of the atlantic ocean where ships and planes are frequently lost, leaving no evidence behind. how would this explanation best be characterized?

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population. b) the separated population is small, and genetic drift occurs. c) the isolated population is exposed to different selection pressures than the ancestral population. d) different mutations begin to distinguish the gene pools of the separated populations. e) gene flow between the two populations is extensive.

Aresident is five feet tall. what is the measurements in iches