Answer:
In unicellular organisms, cell division is the means of reproduction; in multicellular organisms, it is the means of tissue growth and maintenance. Survival of the eukaryotes depends upon interactions between many cell types, and it is essential that a balanced distribution of types be maintained. This is achieved by the highly regulated process of cell proliferation. The growth and division of different cell populations are regulated in different ways, but the basic mechanisms are similar throughout multicellular organisms.
Explanation:
 
        
             
        
        
        
The correct answer is (c) determining how to manage global resources for all humanity
The goal of the world resource simulation center is a very large platform to manage global resources in the form that it serves to all humanity. The team there compiles the inventory of resources, analyses and assess the resources  to solve the current problem as well as anticipated problem. They take help of the emerging technology to solve the problems more precisely. The technology there helps to examine the in-depth problems associated with resources.
 
        
                    
             
        
        
        
A terrestrial ecosystem is a land-based community of organisms.
        
             
        
        
        
Living things require specific organic molecules in order to survive. The picture above represents some specific examples of foods that are mainly composed of one of these necessary organic molecules. The organic molecules found in these types of food are
B)	proteins.