While at an amusement park, you inhale helium from a balloon to make your voice higher pitched. a friend says that helium reacts with and tightens the vocal cords to make your voice have the higher pitch. could he be correct? why or why not?

How do objects appear when viewed through a microscope? A) upside down B) backward C) sideways D) upside down and backwards

What stores the most energy?

In what century is the cellular theory En que siglo se planteó la teoría celular

Which process works by applying pressurized water against a semi-permeable membrane that traps salts and other minerals?

How are active transport and facilitated diffusion different how are they similar?

What job does each organelle do in a cell?

Which of the following statements is true of an object composed of a single cell? It could be considered living only if it has some of the other characteristics of life. It is a living thing. It is not a living thing. It could become a living thing.

If night blindness is a recessive trait, what should the phenotype of the couple's fourth child be?

What's the jet stream and why is it important

a person who is more than 2o percent heavier than the average person of the same sex and height is said to be