Investiguen cómo podemos evitar a estos factores que producen mutaciones.

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse

c. heat from the poles back down towards the equator.

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers

because photosynthesis could not occur (apex)