The earliest life forms we know of were microscopic organisms (microbes) that left signals of their presence in rocks about 3.7 billion years old.
A Respiration by animals CO2 is being added.
B trees burning same
C tree leaves removed
D oil added
Because nowadays, many horses are domesticated, and food they would have eaten in the wild, they don't usually eat anymore. They have learnt to adapt to eating other foods, like hay, that require molars to ingest. This is why over time, their tooth structure has changed.
I think answer is D- because when the cell breaks in half it’s not recreating it’s full self and also preventing mutations from happening
Either watermelons, pumpkins, corn, and i hope this helps! heh
