Answer:
B. The R group
Explanation:
The R group is the part of an amino acid and is the only one that varies and is what defines its properties.
The release of calcium ions initiates muscle contractions. ... The contraction of a striated muscle fiber occurs as the sarcomeres, linearly arranged within myofibrils, shorten as myosin heads pull on the actin filaments.
Answer:
The correct answer is B.
Explanation:
The fibroblast is a dynamic cell, which exerts tissue functions at the local level and the immune system. Among its main functions is the formation of connective tissue fibers called collagen and elastin; The fibroblast performs other equally important roles such as: The production and maintenance of the fundamental substance in which its fibrous products are embedded, it has the ability to synthesize and phagocytize collagen and extracellular matrix components in connective tissue remodeling processes.
You described Toby as a pimple faced boy, so I think something might have happened with his acne. He might have touched/burst one of them and got the bacteria on the cheese. The bacteria colonizing the pore could have been cutibacterium acnes. They are there to generate enzymes to degrade skin, which may have made the customers sick when they ingested it. There's still lots of research going into the bacteria behind face oils and pimples, but this is the best answer i can give with this information!