Answer:B.
It was used to prove that smoking causes health problems.
Explanation:
C. They are members of the same species but different genera.
Answer:
The valves The heart has four valves - one for each chamber of the heart. The valves keep blood moving through the heart in the right direction.
Explanation:
it is right hope this helps
Answer:
I dont know about these options but it needs to be going about 11 kilometers (7 miles) per second, or over 40,000 kilometers per hour (25,000 miles per hour), to enter orbit.
Explanation:
