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
It is an animal that has very little control of their body temperature. they rely on environmental heat sources to keep warm.
True if you are talking about an isotonic solution
Increasing, developing, or current age?
An magnet is what attracts metal so you have to use common since and figure out the rest of the answer .
