The resource that you do not need to measure for research involving competition between animals is Light . The correct option is A
<h3>What is light availability?</h3>
The presence or amount of light in a specific setting is referred to as light availability. The amount and type of light that is available for organisms to perceive and use for a variety of biological processes are referred to as available light.
Although diurnal/nocturnal activity patterns and other characteristics of an animal's behavior or physiology might be influenced by light availability, light is not often thought of as a resource that animals directly compete for. 
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Answer:
The correct order is:
4. Mesenchymal cells aggregate.
2. Osteoblasts differentiate within mesenchymal connective tissue. 
1. Clusters of osteoblasts form osteoid that becomes mineralized.
3. Spicules of bone radiate out from the ossification centers.
 
        
                    
             
        
        
        
Answer:
The bugs in the soil or on the plants will die
Explanation:
The bugs and some of the plant will be infected some will die some will stay alive it all depends on how strong the pesticide is and consummation of the crop will sometimes result in a dangerous turn of event to your stomach if not washed properly.  
 
        
                    
             
        
        
        
Answer:
The answer is option D. The retina is interrupted by the optic nerve.
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It takes 8 electrons to fill a shell.