How many types of amino acids are there

What is the difference between characteristics determined by genes and characteristics determined by the environment?

What type of model would you use to study the solar system?

When you listen to your favorite music, what is the order in which the sound approaches and enters your nervous system and is interpreted by your brain?

How does DNA make you look like you do? DNA makes carbohydrates DNA doesn't make you look like that. Your environment and parasites do. DNA makes RNA which makes lipids. (It's not C) DNA is the blueprint for RNA to make proteins

A solution in which the salt concentration is lower outside the cell then the salt concentration inside the cell is called

Administration of which classes of medications can decrease secretions of the upper respiratory tract?

Explain how DNA froms chromosomes in eukaryotic cells

Decomposers act in which level of the trophies pyramid?

What sort of insect has six legs? List one fact about it as well

If the velocity of an object is changing, its momentum is also changing?