If your findings disproves your hypothesis then your hypothesis is probably wrong.
        
                    
             
        
        
        
Answer:
b. thick wall.
Explanation:
Endospore is a structure formed by some bacteria, that help them survive unfavourable conditions (e.g. lack of nutrients). This survival strategy of some bacteria (usually Gram+ bacteria) help them stay dormant for a while, until stressful conditions stop. A thick wall composed of many layers (exosporium, spore coat, spore cortex, core wall) of the endospore is what provides resistance to different stressful chemical and physical factors such as UV radiation, temperature, chemical damage etc.
 
        
             
        
        
        
Answer:
 She notices that movement of large molecules into and out of the cell is ... and out of the cell is disrupted when she damages one specific type of macromolecule. ... The macromolecule which has she most likely damaged would be a protein.
 
        
             
        
        
        
Answer:
Chitinous exoskeleton and segmented bodies.
Explanation: 
Phylum Arthropoda are known as jointed legs species which include crabs, spiders, ants, etc. The important characteristic of Arthropoda is they have a hard chitinous exoskeleton that provides them protection and gives flexibility. These phylum species can survive in both terrestrial and marine habitats. Some characteristics of phylum Arthropoda are given below:
1) They have Chitinous exoskeleton which is hardened.
2) Their digestive tract is present at opposite ends of the body and complete with the mouth and anus. 
3) They contain jointed limbs.
4) The body structure of these species is showing bilateral symmetry.