Density-dependent limiting factors cause a population's per capita growth rate to change—typically, to drop—with increasing population density
Answer:
1. Hematoma is an open injury that occurs whenever a large blood vessel is damaged and bleeds rapidly. False
2. You should never remove an avulsion skin flap, regardless of its size. True
3. When possible, ALS providers should administer IV fluid within 3 minutes after the crushing object is lifted off the body. False
Explanation:
1. It is false because, although is true that a hematoma occurs when you have a large blood vessel damaged, i
t is a closed injury, not an open one.
2. It is true, you should never remove an avulsion skin flap, regardless of its size. The avulsion may have a serious infection.
3. It is false because ALS providers should administer IV fluid before the crushing object is lifted off the body.
The average red blood cell lives for 120 days.
2. There are 2.5 trillion (give or take) of red blood cells in your body at any moment. To maintain this number, about two and a half million new ones need to be produced every second by your bone marrow.That's like a new population of the city of Toronto every second.
3. Considering all the tissues and cells in your body, 25 million new cells are being produced each second.That's a little less than the population of Canada - every second !
4. A red blood cell can circumnavigate your body in under 20 seconds.
5. Nerve Impulses travel at over 400 km/hr (25 mi/hr).
6. A sneeze generates a wind of 166 km/hr (100 mi/hr), and a cough moves out at 100 km/hr(60 mi/hr).
7. Our heart beats around 100,00 times every day.
8. Our blood is on a 60,000-mile journey.
Only DNA contains the base, thymine, which binds with adenine. Whereas RNA contains the base, uracil, which binds with adenine. Also the structure of their sugars are different: Deoxyribose, in DNA, contains one less oxygen than RNA's ribose sugar.
