Answer:
Number of protons
Explanation:
Any particular element can always be identified by its number of protons.
<span>They have setae covering their bodies.
They have a one-way digestive system.</span>
Answer:
<em>Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, </em><em>organelles serve specific functions to keep a cell alive.</em>
<em>Explanation:</em>
After DNA replication has taken place, two molecules, each with one original and new strand is formed. This supports the idea of DNA replication.
A is the answer
a replication fork
