A shell is considered as biotic (living) because it is a hard, rigid covering of many animals such as snail, sepia, pila, turtles, sea urchins. A shell is protective outer layer of these soft bodied animals.
<span>The answer is A. Roast Beef because all ground meat, injected, or marinated meats must be cooked to 155 degrees to kill any microorganisms that may cause sickness. Roast Beef is a marinated or 'flavor injected' meat therefore it requires the 15 seconds of 155 degree temperature reading.</span>
Cell walls and chloroplasts are structures present in plant cells but not animal cells
