N = Atomic Number 
A = Atomic Mass 
Atomic # = Protons/Electrons 
Neutrons = M-N (25-12) 
<span>
25-12 = 13 Neutrons </span>
        
                    
             
        
        
        
The first species to colonize a barren area is a Pioneer Species
        
             
        
        
        
Answer: Catalase is a common enzyme, found in nearly all living organisms. It catalyses hydrogen peroxide into water and oxygen and protects organisms from free radicals It also has industrial uses to prevent certain contaminants in food and as a disinfectant for contact lenses and a cleansing agent in some other products.
Explanation:
This wasn't helpful im sorry
 
        
             
        
        
        
Answer:
Every living organism starts with a cell which is the fundamental units of life, an organism could be unicellular or multicellular depending on the complexity. The aggregation of cells forms tissue, the tissue makes the organ while the organ makes the entire system which forms the entire living organism.
Explanation:
cell
tissue
organ
system
 
        
             
        
        
        
Answer:
Biome is another name for a distinct type of ecosystem. Biomes are characterized by their climate, which determines the particular plants found there. The climate and the plants in a biome determine what animals live there. This article addresses the climate and biodiversity of one of Earth’s most diverse and iconic biomes: the tropical rainforest.
Explanation: