I would not take my word on this but i do think that, that is TRUE.
They're celled subsistence farmers, their farming practice is subsistence farming, where most of the product they grew or reared are for themselves and their families, they usually don't take the products to the markets for commercial purposes, instead those who do that are practising commercial farming.
Answer:
will improve how fast your brain works and also help you learn just as fast
Answer:
Are you asking what factors effect mutation rate?
If you are could you be a little more specific because technically even you just damaging tissue increases the likelihood of a mutation occurring due to mitosis occurring to repair the destroyed cells. So every time you have to replicate DNA you’re at risk an increased risk for mutation assuming it was the result of something like a cut.
sorry I have to go
B. larger and more complex
Explanation: As the environment became more unpredictable, bigger brains helped our ancestors survive.