9. Glycolytic skeletal muscle fibers...

A. demonstrate higher resistance to fatigue than oxidative fibers.

B. have a smaller diameter than oxidative fibers

C. have a higher density of mitochondria than oxidative fibers

D. have a lower concentration of myoglobin than oxidative fibers

The correct answer is D.

Explanation:      

Glycolytic skeletal muscle fibers are also called fast glycolytic muscle fibers. The produce Adenosine triphosphate (ATP) very quickly.

ATP refer to the molecule that carries energy inside our cells. It is also known as a high-energy molecule that warehouses energy and supplies the cell with it when it is required.

Because Glycolytic muscle fibers contain larges units of glycogen, they are able to respond very quickly by producing tension fast.

Unlike other skeletal muscle fibres such as the slow and fast oxidative fibres, Glycolytic muscle fibers contain myoglobin and seem to be white in colour. This is because they do not require the anaerobic mechanism to generate the required energy.  

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white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation: