Answer: All of the finches share common ancestors
Explanation:
 
        
                    
             
        
        
        
Answer: The sun generates energy from a process called nuclear fusion.
Explanation: I hopes this helps you out.
 
        
             
        
        
        
It is speeding up because more distance is covered every second.
Explanation:
The car can be described to be speeding up because more distance is covered every second. 
From what we understand about velocity and acceleration, the car is accelerating through the ramp. 
It's velocity is increasing with every second it covers. 
This will invariable reduce the time between each distance covered. 
Originally, the toy car starts with a low initial velocity or speed. As it gains acceleration, the speed will increase and more distance covered per seconds. 
This is why the dots clustered towards the end of the diagram. The positions are getting closer and distance reducing per seconds. 
Learn more: 
Speed brainly.com/question/1548911
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Cholesterol in Cell membrane  strengthens and helps to maintain the fluid nature of a cell regardless of temperature
<u>Explanation:</u>
All organisms are made up of one or more cells. Each cell is protected or differentiated by a covering called as the cell membrane. Phospholipids are the basic structure of the cell membrane. Cholesterol prevents the loss of fluid from phospholipids.  
Cell membrane has a lipid layer and cholesterol which is placed between the phospholipids to maintain the fluid nature of the cell under different temperature. Cholesterol prevents the cell from solidifying and helps maintain the fluid. Cholesterol actually acts as a buffer between different temperatures.
 
        
             
        
        
        
A chromosome consists of a single, double-stranded DNA molecule. Chromatids are two molecules of double-stranded DNA joined together in the center by a centromere. Chromosomes have a thin ribbon-like structure. Chromatids have a thin and long fibrous structure.