Answer:
Predator prey relationship
Explanation:
I can only think of this at the moment and it is simply between predator and prey. The predator consumes the prey and this relationship has an effect on the food chain/ food web. 
 
        
             
        
        
        
The answer is A. 36 to 38 molecules
        
             
        
        
        
Answer:
b. Detachment of a separate hybridized probe molecule from the template DNA
Explanation:
Molecular beacons are a type of genetic probe that enables the hybridization of oligonucleotides. These molecules have a flourishing component that binds to a nucleotide sequence and allows the identification of this nucleotide sequence in DNA or RNA without the release of radioactivity. For the use of these molecular beacons to be possible, one needs complementarity between the model DNA and the probe sequence,  illumination of the hybridized beacon to detect fluorescence and proximity-based quenching of the fluorophore prior to beacon hybridization.
 
        
             
        
        
        
Answer:
Option C,  Intrapleural pressure is less than intrapulmonary pressure
Explanation:
During inspiration, the air enters the lungs due to lower pressure in the intrapulmonary or intra-alveolar  than the atmospheric pressure. During quite respiration, the intrapulmonary pressure reduces to a pressure that is 3 mm Hg lower than that of atmospheric pressure. During quiet expiration, the intrapulmonary pressure rises up to a pressure that is 3 mm Hg higher than that of atmospheric pressure. This leads to lack of air in the intrapleural space thereby producing intrapleural pressure which is lesser than that of intrapulmonary pressure.  
This difference in pressure (i.e higher pressure with in the lungs than the atmosphere)  causes lungs to remain attached to the chest wall and hence looks inflated.  
Hence, option C is correct
 
        
             
        
        
        
D. 
The block of wood does not stop moving at any time as shown on the chart, so the answer can't be A. or C. and the speed is not increasing  so it can't be B.