Answer:
1.red-RR blue- BB  purple-RB
2. RR RR
    BB BB
Explanation:
 
        
             
        
        
        
Answer: biomarker: A substance used as an indicator of a biological state, most commonly disease.
trace fossil: A type of fossil reflecting the reworking of sediments and hard substrates by organisms including structures like burrows, trails, and impressions.
fossil record: All discovered and undiscovered fossils and their placement in rock formations and sedimentary layers.
strata: Layers of sedimentary rock.
fossiliferous: Containing fossils.
Explanation: hope this is what you mean if not ill try again
 
        
             
        
        
        
Answer:
Un nucleótido esta formado por una molécula de azúcar (ribosa en el ARN o desoxirribosa en el ADN) unido a un grupo de fosfato y a una base nitrogenada.
Explanation:
ADN,    ARN son polímeros formados por largas cadenas de nucleótidos.
Las bases utilizadas en el ADN son: adenina, citosina, guanina y timina
En ARN, la base  uracilo y ocupa el lugar de la timina.
 
        
             
        
        
        
Answer:
<h3>The micro-organisms which convert the dead plants and animals to humus are known as decomposers.</h3>
<h3> Examples: Fungi and Bacteria. Decomposers recycle and convert the dead matter into humus which mixes with forest soil and provides necessary nutrients to plants.</h3>
 
        
                    
             
        
        
        
Answer:
hope this helps 
secondary succession
Explanation:
Large, low intensity disturbances, such as plowing in conventional agriculture, result in moderate amounts of succession, where species can survive in the soil and quickly recolonize areas after a disturbance. This type of succession is often called secondary succession