The answer is B
An open system has its energy and matter leave and enter the system's boundaries unlike in a closed system where energy remains within the system.
The earth's atmosphere shares heat and water vapor with the hydrosphere (oceans, seas and lakes), energy form the sun, in the atmosphere and then partly radiated back to space
Vestigial structures are inherited from ancestors, but have lost much or all of their original function due to different selection pressures acting on the descendant. The hipbones of bottlenose dolphins are vestigial structures. However, as the dolphin lineage adapted to life at sea, this function was lost.
the fundus is c, the body is d, 14 is b, 15 is b, 13 is ac, 12 is b, 18 is false, 16 is b, and 17 is a
<u>The Correct Answer Is:</u>
C) Alveoli
Hope this helps :)
