Answer:
Diffusion is the movement of a molecule from an area where the molecule is in high concentration to an area where the molecule is in low concentration. Facilitated diffusion is the movement of a molecule from an area of high concentration to an area where the molecule is in low concentration. Osmosis is the diffusion (high to low concentration) of water through a semi-permeable membrane. Water moves from an area of high water molecule concentration (and lower solute concentration) to an area of low concentration (and higher solute concentration. 
Hope this Helps!!!
 
        
             
        
        
        
Answer: Homeostasis helps to maintain body equilibrium.
Explanation:
Homeostasis is defined as the maintenance of a fairly constant internal environment in an organism. Body fluids such as blood, lymph, and tissue fluids make up the internal environment of the body, hence by the action of the nervous and endocrine system, there levels are maintained at a body equilibrium, by the help of brain, which has overall control of homeostasis while other parts such as kidney, liver, skin, hormones are also involved.
 
        
             
        
        
        
Answer:
 speed and time are Vf = 4.43 m/s and  t = 0.45 s
Explanation:
This is a problem of free fall, we have the equations of kinematics
       Vf² = Vo² + 2g x
As the object is released the initial velocity is zero, let's look at the final velocity with the equation
       Vf = √( 2 g X)
       Vf = √(2 9.8  1)
       Vf = 4.43 m/s
This is the speed with which it reaches the ground
  
 Having the final speed we can find the time
       Vf = Vo + g t
        t = Vf / g
        t = 4.43 / 9.8
        t = 0.45 s
This is the time of fall of the body to touch the ground