Answer:
D. Bear
Explanation:
The answer is bear because a bear is an animal. Everything but animals can carry out cellular respiration.
 
        
             
        
        
        
Answer: Myelin 
Explanation:
The speed of the neurotransmission increases as we grow. The behavior of the teenager is quite different from the behavior of the adolescents. 
They are more active, heroic and wants to take risk. This is because their brains are not completely developed till they reach the age of 25.
As they grow and reach the late 20s the white mater in the brain increases as the frontal lobe is the last part of the brain development.
Due to the development of the myelin in the frontal lobe the transmission of the signal increases at adolescence.
 
 
        
                    
             
        
        
        
Photosynthesis in plants. Plants make food
through the process of photosynthesis. They get
the energy from the Sun. Plants store sugars as
their food. That is an energy-rich compound.
brainiest??
        
             
        
        
        
Number of mole s of H 
2
	
 = 0.25 moles 
number of molecules = moles * Avogadro’s Number
number of molecules = 0.25×(6.022×10 
23
 )
number of molecules = 1.505×10 
23
single molecule of hydrogen contains two H-atoms. So,
number of atoms = 2×(1.505×10 
23
 ) = 3.01×10 
23
        
             
        
        
        
The answer is D.. Hope it helps..