Answer:
Regular exercise helps to strengthen your bones and muscles.
Explanation:
It helps to stretch your muscles and bones so that your bones be elastic.
The answer is B.
A is not even true generally, species won't stray from their own(especially just for environment) unless under drastic circumstances.
C is somewhat true but not as specific as B, speciation has to do with interbreeding and barriers related to it.
D is obviously just the opposite of what happens with speciation. It is due to either biological or geographical barriers inhibiting breeding that causes speciation to occur.
I think the correct answer is a because the temperature will increase by the sun when it is being placed there.
The answer is your earbuds
