Although there are a limited number of amino acids, many different types of proteins exist because the?
a) size of a given amino acid can varyb) chemical composition of a given amino acid can varyc) sequence and number of amino acids is differentd) same amino acid can have many different properties

Which of the following are true about bacteria? select all that apply. bacteria are all around you. bacteria can or harmful. bacteria are multicellular organisms. bacteria can only be found on the human body.

What is a cordon and where is it found

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.