Yes. Oxygen crash led to Cambrian mass extinction
B positive patients can receive blood from B positive, B negative, O positive and O negative donors.
Answer:
No
Explanation:
Arteries typically carry oxygenated blood, which is bright red in colour. The exception is the pulmonary artery which carries deoxygenated blood from the heart to the lungs.
45 feet
there are 3 feet in a meter
so we can find how many feet are in 15 meters by multiplying
15 x 3 = 45
