Answer:
B and D
Explanation:
Since it says all carbon atoms have six electrons, we know that they only have six protons too. The carbon 13 and 14 means they have extra neutrons that increases their atomic mass.
 
        
             
        
        
        
Answer:
As a metabolic heat.
Explanation:
The loss of energy from one trophic level to the next in a food chain occurs because energy is lost in the form of heat when the organisms from one trophic level are consumed by organisms from the next level. Only 10% of energy is transferred from one trophic level to another while the remaining 90% energy is lost in the form of heat energy in the ecosystem.
 
        
             
        
        
        
Answer: B) Jupiter and the sun have a similar composition.
Explanation:The only significant difference between the sun and Jupiter is in the sizes i.e jupiter is smaller compared to the size of the sun.
However their similarities is in their composition i.e what they are made up (helium and hydrogen).
The core of Jupiter is made up of liquid metallic hydrogen and the sun's core or center is also made up 34% mass plasma of hydrogen.
So option B (Jupiter and the sun have a similar composition) best describes the relationship between Jupiter and the sun.
 
        
             
        
        
        
Without knowing your previous answer I would say C