Answer:
Aneuploidy
Explanation:
Aneuploidy is the presence of abnormal normal of chromosomes in a cell. Example: The chromosomes number 45 or 47 chromosomes which is not common in case of human beings.
The normal number of chromosomes in human beings is 46. This results in different syndromes which can cause deformities in the body of the individual.
It leads to miscarriage in most of the cases the survival is very less.
 
        
                    
             
        
        
        
Answer: (1) Providing an optimized orientation of the substrate.
(2) Decreasing the ∆G in reaction.
(3) Excluding excess water.
Explanation: The active sites of enzymes increase the rate of reaction because they decrease the activation energy of the reaction,and the physical microenvironment provides an optimal orientation of the substrate relative to reactive functional groups while excluding excess solvent,such as water.
Although some active sites may have amino acids that form salt bridges with the amino acids from a substrate,not all do, so this is not a generic strategy of active site microenvironments
*Gotten directly from Quizlet*
 
        
             
        
        
        
Answer: c. Part of an ecosystem
Explanation: the fish, crustaceans, molluscs and bacteria are part of a community, but sand is not. Each of those species is part of a population.
 
        
                    
             
        
        
        
The answer is Regeneration of Neural Tissues
 Axon regeneration has three phases: sprouting, elongation, and maturation (McQuarrie, 1983). As Schwann cells dedifferentiate and proliferate, the proximal stumps of the axons sprout by the actin-driven formation of growth cones (Sinicropi and McIlwain, 1987).