Answer:
Sample 4.
Explanation:
Oxygen is very important for life, so this should be present.
B. Steroid hormone
This is because most hormones are steroids, that send long distance signaling throughout your body.
<span>The key points about cell theory are as follows:
1. All living organisms are made up of cells; the organisms may be unicellular or multi cellular.
2. The cell is the basic unit of life.
3. New cells are derived from pre-existing cells.
4. All cells maintain homeostasis.
Some new facts have been added to these basic facts; the new facts added include the following:
(A). Energy flow occur withing all living cells.
(B). Hereditary information derived from DNA is passed from cell to cell.
(C). All living cells are made up of the same basic chemical compositions.</span>
A. Separated twins develo traits that differ according to the environments in which they are raised
c. saturated, thats the one that helps animals store energy and insulation
