Describe the bands that create the light and dark areas of skeletal muscle fibers known as striations

What will be an ideal response?


I bands and A bands create the light and dark areas known as striations on a skeletal muscle fiber. I bands, or light bands, contain only thin filaments. These bands are lighter because they allow more light to pass through. A bands, or dark bands, contain thick filaments. The thick filaments block more light than the thin filaments.

Anatomy & Physiology

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Indicate whether the statement is true or false

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Which protist is best described by its lifestyle?

A) Euglena have features of animals and fungi. B) Paramecium are ciliated hunters. C) Plasmodium are free-living animal-like protists. D) Amoebas are sedentary photosynthetic protists.

Anatomy & Physiology

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Anatomy & Physiology

Which statement about desmosomes is NOT true?

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Anatomy & Physiology