Each gustatory cell extends ________ (called taste hairs) into the surrounding fluids through a narrow taste pore
A) microvilli
B) villi
C) papillae
D) palpebra
E) G proteins
A
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The perichondrium is a layer of dense irregular connective tissue surrounding __________.
A. a bone B. most cartilage C. a blood vessel D. the brain and spinal cord E. the pericardial cavity
When a vessel is damaged, chemicals are released from the vessel walls that attract platelets to the site of the damage. As they accumulate, more chemicals that attract more platelets to the area until the bleeding stops. This represents ________ feedback, with the platelets acting as the ________.
A. positive; effectors B. negative; integrating center C. negative; sensors D. positive; integrating center
Of the following arteries, the one that is an elastic artery is
A) the left subclavian artery. B) the external carotid artery. C) the brachial artery. D) the femoral artery. E) none of the above.
What particle is formed when an acid loses a proton (H+)?
A. conjugate base B. buffer C. conjugate acid D. salt