Which nutrient is the first (easiest) to be broken down and absorbed for energy use in the body? water carbohydrates fats proteins
whole grains are considered a good source of carbohydrates.
a. true
b. false

Which type of microscope would allow the viewer to see ribosomes inside a cell?

Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.