Collagen fiber resembles concrete, or a structure to stick things together. Calcium-containing salts are the most essential minerals to bones, making up around 70% of the grid, including generally calcium phosphate and some measure of calcium carbonate and other calcium or phosphate salts.
Skin, Hair, nails, and glands.
The integumentary system has the components of the
Epidermis, The epidermis is the most superficial layer of the skin that covers almost the entire body surface.
Hair.
Nails.
and the Sudoriferous Glands, Sebaceous Glands, and Ceruminous Glands.
Cell membrane of a cell is responsible for the substances
that goes in and out of the cell’s cytoplasm and organelles. It is transports
different materials externally to internally and vice-verse. Hence the cell
membrane is like
<span><span>1. </span>The wall,
window and door of a house.</span>
<span><span>2. </span>The
security guard of a certain bank</span>
<span><span>3. </span>Or the
military sector of a country.</span>
Like these three real-life examples, they regulate and
control the flow of certain entities from outside to inside and vice-versa.
1) c- bacteria
2) d- break down dead organisms
