Answer:
carbohydrate chain
Explanation:
Cholesterol is more rigid than some of the other lipids in the membrane. Cholesterol keeps the fatty-acid tails of the phospholipids bilayer from sticking together, which contributes to the fluidity of the plasma membrane. The membrane would become rigid. Transport protein move needed substances or waste materials through the plasma membrane
. Carbohydrate defines the cell characteristics and help cells identify chemical signals.
It's c because Atoms contain three sub-atomic particles called protons, neutrons and electrons. The protons and neutrons are found in the nucleus at the centre of the atom.
all chordates is the answer
Animals are smaller because they don’t need to store as much water as other organisms such as plants.
