Amedical researcher used a tube to remove some of the liquid from a person's stomach. the researcher put the liquid into a flask which had a peice of boiled beef in it. the beef was digested in six hours.

a. what type of substance in the liquid from the stomach caused the beef to be digested?

b. the researcher kept the flask at 37 degress celcius. explain why.

c. in the human body, the digestion of protein in meat begins in the stomach and is completed in the small intestine.

(i) what is digested protein used for in the body?

(ii) describe how the products of digestion get from inside the small intestine to the cells in the rest of the body.

(i need this asap,, : ) )

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

Chinese privet is a plant that is native to china. over 150 years ago, chinese privet was introduced to the united states as a fast-growing shrub that serves as an excellent privacy hedge. with no natural herbivore, chinese privet quickly established itself and spread in natural areas throughout the southeast and eastern seaboard of the united states. its dominance in these areas has jeopardized the survival of native plant species. chinese privet provides evidence that introducing non-native organisms can cause environmental damage integrated pest management strategies will not decrease chinese privet populations american gardeners can easily control the spread of chinese privet non-native plant species have type i survivorship curves

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?