Which of the following represents the correct levels of organization for an individual?

a) cells, organs, tissues, organ systems
b) organ systems, tissues, cells, organs
c) tissues, population, biomes, biosphere
d) cells, tissues, organs, organ systems

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

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

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.