1. A chemical reaction that requires energy is:
(1 Point)
O
exergonic e. g. photosynthesis
endergonic e. g. cellular respiration
exergonic e. g. cellular respiration
o
endergonic e. g. photosynthesis

endergonic e.g. photosynthesis

Explanation: Endergonic reactions are chemical reactions an input of energy to proceed while electronic reactions are chemical reactions that do not require an input of energy rather in an exergonic reaction energy is released.

Photosynthesis is an example of an endergonic reaction because it requires energy. In photosynthesis, the solar energy absorbed by chlorophyll and other light absorbing pigments in plants are conserved as ATP and NADPH which are the sources of energy to drive the remaining reactions of photosynthesis. The solar energy is converted to chemical energy used in driving the photosynthetic reactions. Chemical equation for the photosynthesis is 6CO2 + 6H2O + solar energy ---> C6H12O6 + 6O2.

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.