Adelle often has goose bumps on her arms. Explain how the goose bumps are formed and why she will never have goose bumps on the palms of her hands or on the soles of her feet

What will be an ideal response?


A smooth muscle, called the arrector pili muscle, is attached to the hair follicle. During the contraction of this muscle, the hair stands up. A goose bump is a tiny mound of flesh that forms at the base of this erect hair. Goose bumps cannot form at places where hair is not present, such as the palm of a hand and the sole of a foot.

Biology & Microbiology

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As you are analyzing the blood sample of a human patient, you note an abnormally high number of erythrocytes. Predict the effects of this situation.

A. The ease of flow for the blood could decrease. B. Immune function would improve. C. More nutrients would reach cells. D. Less oxygen would reach the tissues.

Biology & Microbiology

Describe experiments using marker molecules that have been done to elucidate important properties of (1) tight junctions and (2) gap junctions,

and propose one additional experiment you could do with each junction to gain a greater understanding of that junction's properties. What will be an ideal response?

Biology & Microbiology

Sexual reproduction in multicellular Ascomycota leads to the production of

A) asci. B) basidia. C) conidia. D) sporangia E) zygotes.

Biology & Microbiology