The surface area of a sphere can be approximated as follows: Surface area = 4πr2; where r is the radius of the sphere; π is a constant that is roughly equal to 3.
Frozen red blood cells that have been thawed, deglycerolized and reconstituted in an open system must be used within 24 hours.
Cryopreservation of Red blood cells (RBCs) can be done with a long time span of usability of 10 years. Glycerol safeguards RBCs during freezing and defrosting, yet it can cause hemolysis if it is not washed off or eliminated before transfusion. When a unit has been deglycerolized, the shelf life of RBCs in an open system is only 24 hours, bringing about sporadic utilization of Frozen RBCs from the outset of the procedure or in close system cases it is up to 14 days.
Learn more about Blood transfusion here,
brainly.com/question/15314284
#SPJ4
14C (carbon-14) can be used to date a 20,000 year old skeleton
This is a form of sexual reproduction. The male sperm joins with the female egg. This is called fertilization. After the sperm and the egg join, it creates a zygote, that then develops and becomes an organism. After that, you know what happens. lol
I hope this helped. Comment below if it did. Brainliest would be great.
Answer:
The leaves of plants contain openings called stomata, which are used for the exchange of gases. Carbon dioxide, combined with water in photosynthesis, is drawn in through the stomata. Oxygen, a byproduct of the process, is released through these openings, along with water vapor in a process called transpiration.
Explanation:
Hope this helps! :)
