3. </span>The skeleton gives the body its shape, which changes with growth. In
addition to determining characteristics such as height and the size of
the hands and feet, stable body shape enables essential functions. For
example, a stable rib cage and spine enable the lungs to fully inflate
when breathing. Conditions such as osteoporosis of the spine and broken
ribs can alter the shape of the chest and impair this vital body
function.
4.The skeleton gives the body its shape, which changes with growth. In
addition to determining characteristics such as height and the size of
the hands and feet, stable body shape enables essential functions. For
example, a stable rib cage and spine enable the lungs to fully inflate
when breathing. Conditions such as osteoporosis of the spine and broken
ribs can alter the shape of the chest and impair this vital body
function.
5.Larger bones contain bone marrow, a spongy tissue inside the bones.
There are two main types of marrow, red and yellow. Red marrow is
responsible for production of all of the body's red blood cells and many
of its white blood cells. Red blood cells are produced at an average
rate of approximately 200 million per day. These cells carry
life-sustaining oxygen to the body tissues.
In adults, red marrow is found primarily in the breastbone, hips, ribs,
skull, spinal bones and at the end of long bones of the arms and legs.
Several types of white blood cells, which protect the body from
infections, are also produced in red bone marrow. Yellow bone marrow
contains primary fat cells but can transform into red marrow if the body
needs to increase blood cell production, such as if anemia develops
Positive feedback loops enhance or amplify changes; this tends to move a system away from its equilibrium state and make it more unstable. Negative feedbacks tend to dampen or buffer changes; this tends to hold a system to some equilibrium state making it more stable.
"Lipids are an essential component of the cell membrane. The structure is typically made of a glycerol backbone, 2 fatty acid tails (hydrophobic), and a phosphate group (hydrophilic)."
The pesticides found on the foods and are being stored in
the body tissues is a process that is called the bio accumulation. This process
is done when foods ingested containing pesticides are not metabolized or has
excreted in the body of a person, it will undergo to fat tissues as it is
stored—resulting pesticides to accumulate a high concentration in the person’s
body.
