Answer: 1.chromosomes, 2. Histones, 3. prokaryotes have one chromosome, 4. A sugar phosphate backbone with nitogen bases in the middle. 5. Chromatin
Explanation: Chromatin
 
        
             
        
        
        
Answer:
5.6L
Explanation:
Given parameters: 
number of moles  = 0.25mol
pressure on gas  = 1atm
temperature  = 273K
Gas constant R = 0.0821Latm/molK 
Unknown: 
Volume of gas  = ? 
Solution: 
Using the ideal gas equation, we can solve this problem. The equation is a combination of the three gas laws: Boyle's law, Charles's law and Avogadro's law. 
It is mathematically expressed as; 
              PV = nRT
where P is the pressure
            V is the volume 
           R is the gas constant 
           T is the temperature
           n is the number of moles 
All the parameters are in the appropriate units and we simply solve for the volume of the gas; 
 
                 1 x V = 0.25 x 0.0821 x 273
                       V  = 5.6L
 
        
             
        
        
        
Answer:
The concentration of a substance is the quantity of solute present in a given quantity of solution. 
 
        
             
        
        
        
4.6 billion years ago
The study pushes back the clock on the origin of Earth's water by hundreds of millions of years, to around 4.6 billion years ago, when all the worlds of the inner solar system were still forming. Scientists had suspected that our planet formed dry, with high-energy impacts creating a molten surface on the infant Earth.
i hope this helped, have a nice day! (o:
 
        
             
        
        
        
Answer:
D: All levels contain the same amount of energy
Explanation:
This is due to how the number of animals also increase as the energy pyramid level decreases.
Hope it helps!