Answer:
highlighted in bold above, are a struggle for existence, variation and inheritance
Explanation:
i hope this helps
mantle
Explanation:
yea I'm pretty sure that's it
I think that for 1 it’s either A or B as the kidneys and everything get air and the lungs release it.
For 2 is probably D as the others don’t really make much sense.
Because they are built with overlapping sand and they can break easily.
