Base on the chemical equation of photosynthesis, 6CO2 + 6H2O > C6H1206+ 602, what is substances
essential to photosynthesis. Encircle all the essential substances.
A. CO2
C. Co H12O6
B. H2O
D. O2

A and B

Explanation: From the chemical equation of photosynthesis given above, six molecules of carbon dioxide react with six molecules of water to produce one molecule of glucose and six molecules of oxygen. From the chemical equation, 6CO2 = six molecules of carbon dioxide, 6H2O = six molecules of water, C6H12O6 = one molecule of glucose and 6O2 = six molecules of oxygen.

Therefore, the essential substances to photosynthesis are carbon dioxide (CO2) and water (H2O).

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.