Answer:
A portion of the Earth's atmosphere that protects the Earth from radiation
In the body, lipids helps maintain cell membranes. Lipid is defined as a substance of biological origin which is soluble in nonpolar solvents. It is composed of a group of naturally occurring molecules. Which includes fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, phospholipids, and others. Its main biological functions involves storing energy, signaling, and acting as structural components of cell membranes.
The answer is C. Zygote blastocyst embryo fetus
Mitochondria is the powerhouse of a cell so with that being said
That is what we call the muscular system. This system allows us to move, circulates blood through the body and their is 3 types of muscle. Skeletal muscle is voluntary and are mostly attached to two bones. Smooth muscle is found inside organs such as stomach and blood vessels. And Cardiac muscle is ONLY found in the heart .