Proteins are made of hundreds and thousands of polymers called Amino Acid which are attached with each other in long chains. There are 20 different types of amino acids that make up a protein
Answer:
A. looking for ways to improve the quality of water
Number 4 is not part of the cell theory
Answer:
No
Explanation:
The Sun is a star there are lots of stars,but the Sun is the closest one to Earth.It made from gases and it always burning
Planets are:Mercury, Venus, Earth, Mars, Jupiter, Saturn, and Uranus