Answer:
Oxygenated blood flows back to the heart through the pulmonary vein, back into your left atrium.
Hope this (maybe) helps!
Explanation:
Answer: all of the above.
Explanation:
Condom is a barrier method of contraception that prevents the sperm coming into contact with the oocyte (egg).
There are male and female condoms.
They are effective in preventing sexually transmitted diseases like HIV.
If used correctly, condom has an efficiency of 98%
Answer:
Insulin helps control blood glucose levels by signaling the liver and muscle and fat cells to take in glucose from the blood. Insulin therefore helps cells to take in glucose to be used for energy. If the body has sufficient energy, insulin signals the liver to take up glucose and store it as glycogen.
Explanation:
Burning nonrenewable resources