What is a disadvantage of using gas chromatography

A) It is expensive to perform.

B) It takes a day or more to obtain results.

C) It requires a large quantity of the substance.

D) It doesn't provide the exact chemical composition.

About 150 l of plasma filters into the renal tubules each day, but only 1-2 l of urine is formed. what happens to the rest of the plasma fluid?

Why is it important for the following nutrients to cycle: carbon, phosphorus, and nitrogen?

Ferns grow seeds in little cases. true or false?

Which best describes the relationship of the embryo and the fetus? O O O O The embryo and the fetus are both formed when the sperm and egg fuse. The fetus differentiates into the embryo and the placenta. The embryo has more cells than the fetus has.

The compound Ba9 (N0) 3 includes oxygen atoms

Ne type of marker is used to warn boaters not to pass between the marker and the shore. what color is this marker?

What does chordates mean

Harvey was training for a cross-country bicycle race. During his practice run, Harvey's tire went flat and he fell off of his bike, cutting both knees.

Some insects can glide across the surface of water due to water's:

Which statement describes the area swept out by a line between a planet and the sun at equal times as the planet moves along its orbit? It changes shape but always remains constant. It is proportional to the distance between the sun and the planet.