If they mix it can lead to death
I believe your answer would be d
Answer:
Migration
Explanation:
Birds have adapted to the changes in temperature (over generations) and know to migrate when necessary
<span>Why was modern classification invented?
A: traditional classification could not classify all living things.
B:scientists realized related organisms do not share similar characteristics.
C: Scientists understood that species share a common ancestor.
D: modern classification is faster and easier to use.
the correct answer is C</span>
Answer:
i think it's hydropower??
Explanation:
not for sure, just taking a guess
let me know if it helped haha