Answer:
Oxygen is one and i can't think of others
Explanation:
The twenty- first pair of chromosomes failed to seperate during meiosis, so aziz received three of these chromosomes rather than the normal two. Aziz has down syndrome.
Answer:
when you try to stand or stretch your legs to relieve the discomfort.
Explanation:
n turn, the brain directs a response through the spinal cord, which sends impulses through the motor neurons. In turn, the motor neurons direct the muscles to execute the response. The end result is when you try to stand or stretch your legs to relieve the discomfort.
Answer:
Gases in Earth's atmosphere traps the Sun's heat. These are called greenhouse gases.
Explanation:
