Answer: 
The environmental factors which need to be investigated before clearing the land can involve living and non-living factors. The land clearing will remove species of animals and plants acquiring their habitat in the forest. The loss of floral species will affect the faunal species. The faunal species will extinct, decrease in number or may migrate to different locations. Therefore, complete loss of biodiversity will result. 
This will also result in disturbance important cycles in nature like water, oxygen, nitrogen and carbon which will lead to disturbance of rainfall, seasonal or weather changes. Soil an important non-living factor will loose it's fertility due to soil erosion.
 
        
             
        
        
        
Cells could live and possibly reform a new sponge
        
             
        
        
        
The answer is electron transport chain. It is a series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, and couples the electron transfer with the transfer of protons across a membrane. Electrons are transferred from NADH and FADH2 (proton donors) through the electron chain to oxygen, which is reduced to water. This process produces 34 ATP molecules and water from the carrier molecules.
        
             
        
        
        
Answer: I think the best answer would be C.
Explanation: I think that is correct.