Answer:
<h3>The genes that caused scales to become feathers in the early ancestors of birds </h3>
1. Made a lot of products cheaper and accessible
2. Many people moved from their (small farms and rural areas) into cities and earned a living as workers in factories
3. Women started to work in factories, instead of staying at home
Answer:
(D) a protein
Explanation:
The plasma membrane has proteins that are macromolecules responsible for the movement of large molecules in and out of the cell. If these proteins are damaged, this movement will be stopped.
In addition to acting preferentially on the transport mechanisms, organizing true tunnels that allow substances to pass into and out of the cell, these proteins function as membrane receptors, charged with receiving signals from substances that carry some message to the cell, favor the Adhesion of adjacent cells in a tissue, moreover, serve as the anchor point for the cytoskeleton.
I'm pretty sure that it's natural gas.