Answer:
please give me brainlist and follow
Explanation:
These chemical reactions produce waste products such as carbon dioxide, water, salts, urea and uric acid. Accumulation of these wastes beyond a level inside the body is harmful to the body. The excretory organs remove these wastes.
Alleles are different versions of genes.
y = 3x + 8 because the y-intercept is always adding if it's positive and and the slope always has the x in the back.
tRNA molecules attach to codons.