A nucleotide is made up of one sugar molecule, one phosphate molecule and one of the four bases. Here is the structural formula for the four nucleotides of DNA. Note that the purine bases (adenine and guanine) have a double ring structure while the pyrimidine bases (thymine and cytosine) have only a single ring
The danger zones are 41F to 140 degrees F
Answer:
B. It is studying the ecosystem.
Explanation:
Answer:
Na and K
Explanation:
Every elements in the same group have similar chemical characteristics
