Long-distance runners often describe hitting the wall' towards the end of a race as their bodies run out of quick, usable energy. This causes extreme exhaustion as the body switches over to its stored energy reserves. Which macromolecules are these runners
mostly using at the beginning and end of each race?
A)
Beginning protein: End: lipids
B)
Beginning: lipids, End: protein
Beginning: lipids: End: carbohydrates
D
Beginning: carbohydrates: End: lipids

Jerry wants to consume no more than 45% of his calories from carbohydrates. calculate his requirement for calories from carbohydrates based on a 2,500 kcal per day intake.

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Looking at this image, what relationship can be drawn from it? the lower the degree of latitude, the lower the degree of temperature there is no relationship between latitude and temperature the higher the degree of latitude, the higher the degree of temperature the lower the degree of latitude, the higher the degree of temperature