The correct answer is (a )
This experiment shows that the life has evolved from the inorganic materials. The substances like carbon dioxide, nitrogen gas when heated and exposed to UV radiation led to generation of life supporting element called as amino acids. The UV radiation and heat provided the energy needed by gases to convert into amino acids.
Answer: It will slow down.
Explanation: This is because the same amount of blood that usually goes through will have to fit through a blocked vessel. Only a little will be able to go through at one time, causing the blood flow on the other side to slow.
(That is really dangerous. The build-up will eventually burst the vessel) Just an FYI
Answer:
Red blood cells are adapted to their function by:
1) They contain haemoglobin - a red protein that combines with oxygen. they have no nucleus so they can contain more haemoglobin.
2) They are small and flexible so that they can fit through narrow blood vessels.
3) They have a biconcave shape (flattened disc shape) to maximise their surface area for oxygen absorption.
Hope this helps! :D
A. Carbonic acid with limestone
