The oxygen moves into the blood system from the lungs by the process. a. exhalation b. osmosis c. diffusion d. respiration

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel

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.

Dna sequences in many human genes are very similar to the sequences of corresponding genes in chimpanzees. the most likely explanation for this result is that: