Answer: Diffusion occurs due to the random movement of particles. It usually happens due to a concentration gradient, meaning that molecules move from an area of high concentration to an area of lower concentration.
Explanation:
 
        
                    
             
        
        
        
Answer:
Water
Explanation:
In simple words, the volume of a cell refers to <u>the amount of water it contains</u>. 
In eukaryotic cells may change their volume according to the effects of either the loss or gain of water. Furthermore, these changes in cell volume are extremely important as they work as a signal for different cell processes such as migration, proliferation, or death.
Therefore, the change of cell volume is principally due to the loss or gain of <u>water</u>.
 
        
             
        
        
        
everything is absolutely. rite
Explanation:
 improve typing <u>mutualism </u>is wrong
 
        
             
        
        
        
Answer:
The Eocene Epoche coincides with the form of primates which are placental mammals.
Explanation:
The main characters of placental mammals contain large body,bigger brain that appear at that time from the fossil record.
True primates were evolve in 55 million years ago,at the beginning of eocene epoch.
These fossil records were found in  North America, Europe, Asia.
The fossil were squirrel like size with grasping hand,feet, that helps them for climbling the tree.
The fossil record of primate that were found contain stereoscopic vision.