Answer:
A. The specific functional role of an organism
Explanation:
A habitat is the general place where an organism lives and a niche is the range of physical and biological conditions in which a species lives and the way the species obtain what it needs to survive and reproduce.
Answer:
A meter is a metric unit of length used worldwide by scientists to measure lengths and distances between objects.
For number 8:
all radio waves,
infrared radiation,
visible light,
ultraviolet radiation,
X-rays,
gamma rays.
Explanation:
While exercising, the muscles need additional energy as the breathing rate and volume of each breath increases to bring more oxygen into the body and remove the carbon dioxide produced. The heart rate increases to supply the muscles with extra oxygen and remove the carbon dioxide produced.
