The hamburger meat is the variable that is manipulated 
 
        
             
        
        
        
The half colored half white circle indicates that the person is a carrier but doesn't have the disease. Since John has a capital H we can assume that if someone else has a capital H genotype then they don't have it. Every body but Fred and Luke have a capital H and their squares are fully colored meaning that they have hemophilia 
The answer is Fred and Luke
 
        
             
        
        
        
Answer: The options are not given, here are the options.
Water flows from a stream to a lake.
Gravity moves rocks to another location.
Lions use energy to catch other animals for food.
Bears dig big holes in the ground to protect their young.
The correct one is Gravity move rock to another location.
Explanation:
The Earth spheres consist of the biosphere which is the living components, Hydrosphere (water), geosphere( rocks) and the atmosphere( gases). The Earth's spheres closely connected that a change in one sphere can result in change in another sphere.
For example, birds fly through the atmosphere, water(Hydrosphere) flow through the soil (lithosphere)
 
        
             
        
        
        
Explanation:
The collaboration of human beings began in the past especially to offer security for offspring. Families living in communities had prolonged life for offspring due to collective security for the benefit of the whole community.  Even when some members of community went to hunt or gather food, they are assured to the security of their offspring living in the community. It is believed it is such acts of collaboration that evolved into the current social fabric of society. 
Learn More:
To learn more on humans evolution towards collaboration check out;
brainly.com/question/10668181
brainly.com/question/5373064
brainly.com/question/3807429
brainly.com/question/8929032
brainly.com/question/12592123
#LearnWithBrainly
 
        
             
        
        
        
This represents the anaerobic part of cellular respiration, this  specifically would represent the Krebs cycle. I highly doubt that they want you to be that specific, so Cellular respiration