Answer:
Enzymes speed up a chemical reaction making the reaction easier to occur.
Answer:
Cuando dos organismos comparten un ancestro común, su código genético tiene que ser similar. El grado de similitudes determina qué tan recientemente han evolucionado los organismos. ... Cuando dos organismos tienen una anatomía muy similar, podrían haber descendido de un ancestro común
Explanation:
When Pangaea broke up, the northern continents of North America and Eurasia became separated from the southern continents of Antarctica, India, South America, Australia and Africa. The large northern continent is called Laurasia and the southern continent is called Gondwanaland.
The testes are responsible for producing sperm cells.