Answer:
A.) Core
Explanation:
Core definition: a central and often foundational part usually distinct from the enveloping part by a difference in nature.
Convection Current
This happens when there is a noteworthy contrast in temperature between two sections of a liquid. At the point when this temperature distinction exists, hot liquids rise and cool liquids sink, and after that streams, or developments, are made in the liquid
<span>Transcript of A Cell is like a Factory. The cytoplasm contains the organelles, just likehow the factory floor contains all the machines and workers. The ER is where the ribosomes do there work to create proteins. ... The cell membrane regulates what enters and leaves the cell, similar to factories shipping department.</span><span>Sep 23, 2014</span>