1930-1950 hope this helps
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
Answer:
D.To promote open and profitable international trade
The available amount of food is what is going to determine the carrying capacity. Also, carrying capacity can be dependent on the amount of shelter a system has.
Yes the statement is true. DNA is foiled into chromosomes in a cell because they are coiled up with the helps of histones
