I'm not sure what the answer choices are, exactly, but looking up the question I found several other questions with answers, so I'm guessing based on those the choices would be:
1) physical barrier within population
2) extensive gene flow
3) chromosomal changes within population.
Which, in this case, the answer would most likely be 3) chromosomal changes within population.
The correct answer would be b. the products of cellular respiration are the same as the reactants of photosynthesis. Here are the equations for each:
Photosynthesis:
6CO2 + 6H2O + sunlight --> C6H12O6 + 6O2
OR
6 carbon dioxide + 6 water + sunlight --> glucose + 6 oxygen
Cellular respiration:
C6H12O6 + 6O2 --> 6CO2 + 6H2O + ATP
OR
glucose + 6 oxygen --> 6 carbon dioxide + 6 water + energy
Notice how the products and reactants are switched? The only difference is that photosynthesis requires sunlight, while cellular respiration produces ATP. Hope this helped! :)
multicellular organism whose mouth develops from a primary embryonic opening, such as an annelid, mollusk, or arthropod.
(why google is helpful)
Answer:
Precipitation
Explanation:
Although the options are missing in the question, one word that can be solely used for rain, sleeet, snow and hail is "<u>preciptation</u>".
Principally, precipitation is a meteorological phenomenon that allows the <u>condensation of atmospheric water vapors</u> to make them fall on the Earth's surface under gravity. It is important to consider that fog and frost couldn't be considered as precipitation because, in these processes, water vapours don't fall on the Earth's surface.