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Basophils release _________in response to allergens.

The soft part of the nose and the supporting rings of the respiratory passages are composed of ___________. 

Which of the following is not one of the four basic types of body tissues? 

In which of the following regions of the body are apocrine sweat glands most numerous?   

Apocrine glands release their substances by ________, while holocrine glands release theirs by _________.

Osteoclasts function in all of the following EXCEPT___________.

This image is an example of __________because  of the __________.

The large, white open spaces are called ________.

Exposure to ultraviolet light causes the skin to darken by stimulating ____________.

Epithelial tissue functions in ______________.