Answer:
A bc it moves the bones in the arm and the muscles and the nerves are what send the signals to the muscles to move
Answer:
nucleic acids
Explanation:
Nucleic acids are the polymers of nucleotides. There are two types of nucleic acid: DNA and RNA. DNA is a polymer of deoxyribonucleotide while RNA is a polymer of ribonucleotides. The nucleotides are added together with the help of phosphodiester bonds.
Each nucleotide has a nitrogenous base, a pentose sugar and a phosphate molecule.
There are many species that might go extinct. The one most endangered: White rhinos, with less than 100 in their population. To help these animals, people fund programs like the WildLife foundation. Today, with technology, we haven't had the time to make a change, these people work hard to make sure these animals get proper care and love. :)
Hope that helps!
