Answer:
The genetic variations that are best suited for their enviornment
Explanation:
Those that are not well suited for their environment will die off, leaving only the ones that are suited for it. This species will slowly take hold until the species has adapted and become a completely different one.
Answer:
B. Clay can be made into anything (like a cup or a figurine) just like a stem cell can become different types of cells
Explanation:
Thermal conductivity is not the answer for this question because it does not work
Answer:b
Explanation:bipolar disorder causes emotional ups and downs