Answer:
Tissue
Explanation:
A cell is a structure formed during the evolution which contained all the molecules and favourable conditions required to survive and therefore acts as the functional and structural unit of life.
In evolution, more than one cell aggregated together to form a structure which could perform much complex function than a single cell called tissue as they are programmed to perform the same function.
In the given question, since the heart cells worked together to cause movement in the robot therefore the cardiac cells formed cardiac tissue or heart.
Thus, the tissue is the correct answer.
 
        
             
        
        
        
Answer:
yes
Explanation:
an hypothesis is a guess based on observation
 
        
             
        
        
        
Answer:
  the somatic nervous system and the autonomic nervous system
Explanation:
The somatic nervous system is responsible for both sending and receiving sensory and motor information to the central nervous system.
The autonomic nervous system is responsible for regulating involuntary body functions. For example, heart rate, breathing, and digestion.
 
        
             
        
        
        
Answer:
Scientists use a system like this to group living things. the grouping are based on common traits. this system helps scientists to study the million of organisms of new organisms are discovred each year 
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