The polar head of a phospholipid is made of phosphate. The polar head has a negative charge that is made up of phosphate molecules. This polar region attracts water and is positioned outward to interact with the water. 
I hope this helps!
        
                    
             
        
        
        
Don't pollute the Earth.
Don't need gas.
        
             
        
        
        
As per the given scenario, the chances of an offspring as a male or female is 50% each.
<h3>What are chromosomes?</h3>
The thread like structure resides inside the nucleus is referred to as chromosomes.
As there are 23 pair of chromosomes present in the organisms, they transfer their equal numbers in the future generation with some variations.
As per the given image, it is clearly shown that there is 50% possibility of being male or female offspring.
Thus, the chances of an offspring of this pairing being born male or female are 50%.
For more details regarding chromosomes, visit:
brainly.com/question/1596925
#SPJ1
 
        
             
        
        
        
Answer:
 on bird beaks?
Explanation:
I do know that the bird's beaks that they are born with will in time evolutionize their beaks size and strength to prey on the type of fish for food over time.
Hope I'm making sense...good luck.
 
        
             
        
        
        
<span>The propositions are:
A. The gas in the car is the digestive system that provides the necessary energy. 
B. The frame of the car is the digestive system that provides structure and support to the body.
C. The exhaust system of the car is the excretory system that removes waste. 
D. The engine of the car is the digestive system that circulates nutrients to the rest of the body.
E. The oil in the car is the excretory system that protects and coats the body.
The right answer is: C and D
*The exhaust system in the car removes waste from the engine like carbon dioxide, carbon monoxide, and several oxidated particles that are unuseful. The same thing for the excretory system in human, it excretes urea, creatinine, and urobillongen (all are wastes from a metabolism).
*The nutrient in the car are represented by the fuel, it is the component that gives energy to the wheels to roll.</span>