Answer:
I think it is called selective breeding, I don't think it is called that but hope this helps
Answer:
15
Explanation:
the atomic number is the number above the symbol. the number below is the atomic mass.
A. If the optimum temperature for a cell's functions is exceeded, chemical reactions slow down as enzymes and other proteins begin to denature (change shape due to increased vibration of the atoms in the molecules that make up the proteins).
Answer:
Size
Explanation:
Dinosaurs, based on recent studies show that they were larger animals and its not possible now for a bird to be the same height or weight as a dinosaur back then