Answer:
add 2 electrons
Explanation:
Add 2 electrons to carbide atom make it neutral because there are two unpaired electrons present in the carbide atom and it has -2 charge. So the carbide required two electrons for pairing and make the carbide atom neutral. for adding two electrons its all unpaired electrons paired to other two electrons which complete its valency and make it a stable atom.
The endoplasmic Reticulum is like an assembly line: The workers on the assembly line do their work, as the products move through the assembly line. Similar to the workers are the ribosomes on the reticulum, as they also do their work in a line. In the reticulum, like in a factory line, the proteins are produced, and like in the case of the facotry line, they are later sent to the other place in the factory or cell.
A cell membrane has consists of phospholipids. They are lipids with a phosphate group such as (PO3/4). They are hydrophilic meaning that they allow water to pass through proteins well some at least- but it might be needed to move molecules throughnthe membrane as well. But basically it's just a composed bilayer of phospholipids with hydrophobic acid tails so that they could all meet with one another. The form complexes into function to describe or to identify the cells to anothers cells.
Hope this helps.
Answer:
Your answer is E). Fossils in different layers will obviously be much older/younger than others.