Make a conceptual model of the carbon cycle using the following components: Producers (plants, algae, some bacteria), Non-Producers (animals, fungi, protists, the rest of the bacteria),
and the Atmosphere. Also include the processes of photosynthesis (P) and cell respiration (R).

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.

not always but somethings can be reproduced in a laboratory.

the statements that apply here about binary star system are

"have stars that might appear to wobble"

"often have one star that is brighter than other"

a binary star is a star system consisting of two stars revolving around their common barycenter. systems of two or more stars are called multiple star systems.