In what form is the body's largest pool of calcium?
A. Bones, in the form of hydroxyapatites
B. Liver, inside the endoplasmic reticulum
C. Embedded in collagen in many types of connective tissue
D. Skeletal muscle, stored in terminal cisternae
E. Blood, dissolved within the plasma
Answer: A
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Vertebrate blood vessels have complex walls. The smooth muscle of the __________ layer of the blood vessel causes vasoconstriction
Fill in the blank with the correct word.
The nervous system performs the same general function as the:
a. endocrine system b. immune system c. muscular system d. lymphatic system
Lymph nodes are surrounded by a dense connective tissue called the ________.
A. basement membrane B. reticulum C. trabeculae D. cortex E. capsule
Sometimes the granules in the cytoplasm of neutrophils are so large, that the nucleus is almost hidden from view.
Answer the following statement true (T) or false (F)