The plant is the organism that uses the sun’s energy and make it available to other organisms
        
             
        
        
        
Answer:
A rise in temporary body tempurature typically isn't fatal but if prolonged for too long and especially if continuing to rise it can be fatal. 
Explanation:
 
        
             
        
        
        
Chromatin is a simpler for of a chromosome. For example, in mitosis (somatic cells dividing) chromatin is in the nucleus, however when it condenses, it forms chromosomes.
        
             
        
        
        
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Answer:
LD50 (median lethal dose)
Explanation:
- Whenever one needs to quantify the virulence of a pathogen then this is done by using a set of laboratory animals.
 - LD50 (median lethal dose) is an important indicator of virulence. 
 - LD50 is defined as the number of pathogens that are required to kill 50% of the total infected animals.
 - For the calculation of LD50, the animals are infected with a known number of pathogens and then a graph is plotted for the percentage of animals killed against the concentration of the pathogen used for infection.<em> The point at which the graph indicates the death of 50% animals, the corresponding concentration of inoculation of a pathogen is taken as the LD50 of that particular pathogen. </em>