Contraction of muscle results in movement because ________
A) at a joint, the bone acts as a pulley and the joint serves as a lever
B) at a joint, the bone acts as a lever, the joint serves as a fulcrum, and effort is generated by muscle attached to bone
C) at a joint, the bone acts as a fulcrum and the joint serves as a pulley
D) at a joint, the bone acts as a fulcrum and the joint serves as a lever
B
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Exposure of normally inaccessible self-antigens sometimes induces an immune attack against these antigens
a. True b. False Indicate whether the statement is true or false
Describe the fluid mosaic model of the plasma membrane
What will be an ideal response?
Which one of the following is an extension of plasma membrane?
A) centrioles B) centromeres C) microfilaments D) cilia E) microtubules
Aged erythrocytes are phagocytized in the liver and spleen by cells called ________.
Fill in the blank(s) with the appropriate word(s).