Below is the response:
<h3>What does seed germination mean?</h3>
Germination is the first stage of a seed's development into a seedling. To germinate, seeds require the appropriate combination of temperature, oxygen, and water. In a state of suspended animation known as dormancy, seeds wait to germinate until the environment is favorable for their survival and growth.
The option missing in the query is: 
Dry cotton wool
wet cotton wool
covered with water
The initial conditions needed for a seed to germinate are as follows:
warm temperatures are needed for effective enzyme operation.
water, where chemical reactions can occur.
oxygen, for breathing.
Observations:
Seeds planted here won't sprout because of the dry cotton wool. Since some of the prerequisites are not met, they won't exhibit any modifications. (Water isn't present.)
Seeds placed on wet cotton wool will germinate since all the circumstances are there for germinations to occur.
Learn more about the germination of seed here:
brainly.com/question/18365527
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Theory of macroeconomics which dominated the Reagan administration was supply-side economics. The answer to your question is D. I hope this is the answer that you are looking for and it comes to your help.
        
                    
             
        
        
        
Answer:
Reduced penetrance or incomplete penetrance
Explanation:
Penetrance refers to the extend which a certain gene or set of genes is expressed in a population.
It can be complete where there is expression of the gene in a population having it.
Whereas, in reduced penetrance is where the mutation is not expressed in every individual in the population having it.
For instance polydactyly exhibits reduced penetrance since the parents had the mutation it was not expressed it came to be expressed on their pedigree.
 
        
             
        
        
        
5. System level 
6. Organ level