Protein digestion in humans is primarily carried out by three enzymes. pepsin is found in the stomach (ph₂), where it aids in the breakdown of large proteins into smaller peptides, while trypsin

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

What should be the strand of complementary dna produced by the strand of dna shown below cgt ata