Answer:
A. Excess fertilizer is washed into local streams,
causing an overgrowth of algae.
Explanation:
Plants contain these things called chlorophyll, a green pigment that traps energy from sunlight. It absorbs red and blue light, which gives plants their green color. Hope this helps!
Answer:
Detects foreign antigens
Explanation:
Antibodies are the defense cells of the body. They are produced by the white blood cells and help in fighting and killing foreign bodies which are known as antigens. The antibodies attacks the antigens by binding onto it and releasing chemicals to kill it or by engulfing the foreign body( antigen).Examples of antibodies are IgA and IgG.
A bone mineral density (BMD) test measures how much calcium and other types of minerals are in an area of your bone.
