Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
        
             
        
        
        
Answer:
<em>The correct option is A. dihybrid</em>
Explanation:
A cross is drawn to generate the possible outcomes of traits being passed from parents to offsprings.
A monohybrid cross can be described as a cross in which only one trait is studied. For example, just studying the trait for eye colour.
A dihybrid cross can be described as a cross in which two traits are studies in a single cross. For example, studying the traits for eye colour and skin colour. 
 
        
             
        
        
        
765 areas in the united states
        
                    
             
        
        
        
There are many benefits provided by biodiversity. It can be in our biological resources, ecosystem services and also social benefits. The three social benefits provided by biodiversity would be the following:
1. Research, education and monitoring 
2. Recreation & tourism 
3. Cultural values 
Explanation:
Biodiversity is “the variability among existing animals from all causes including temporal, marine and other aquatic ecosystems, and the environmental complex.
Pollinators, including bees and butterflies, contribute meaningful environmental and economic advantages to agricultural and essential ecosystems, including adding heterogeneity and productivity to food crops. As many as one-third of the world's food production relies directly or indirectly on insect pollination.
 
        
                    
             
        
        
        
Answer:
what are the two patterns?