There are 5 different levels of cellular organization.
Cells, tissues, organs, organ systems and whole organisms. Cells hold genetic material and absorb outside energy. 
Tissues make up the bones, nerves and connective fibers of the body. Organs work to perform specific bodily tasks, such as filtering blood. Organ systems are groups of organs that perform a specific kind of function together, such as digesting food. 
Together, these smaller systems make up an entire living organism which can grow and then go onto reproduce.
Explanation:
 
        
             
        
        
        
A2
B4
C1
D3 
I think sorry if I get one wrong
        
             
        
        
        
Answer:
(B) Energy released from the chemical reaction is used to directly phosphorylate ADP.
(D) Energy released from the chemical reaction is used to directly reduce NAD+
Explanation: 
phosphorylation is a addition of phosphoryl group to an organic compound.Substrate level phosphorylation is a process where there is ATP is produced from ADP by transferring a high energy phosphate group from phosphorylated metabolic compound.This process occurs in glycolysis and citric acid cycle.and this pathway is exergonic pathway
 
        
             
        
        
        
Answer:
increase
oceans
wastewater
decomposition
currents
Individuals can control their use of water. Governments can help conserve water by encouraging farmers to plant climate-resistant crops that require less water. Switching to newer alternative energy technologies can reduce water used in fossil fuel and nuclear power plants for cooling.
Explanation: