Which of the following describes a lysosome?
A. A nonmembranous structure that is essential for mitosis
B. A complex network of interconnected membranes that is a communication system in the cell
C. A double-membraned organelle that is the "powerhouse" of the cell
D. A tiny, membranous sac that contains enzymes that degrade worn cell parts and debris
Answer: D
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Fill in the blank(s) with the appropriate word(s).
A metal bar over the hips can be used as an anti-kick device
Indicate whether the statement is true or false
The left atrium and left ventricle are part of which circuit of the cardiovascular system?
A. Systemic circuit B. Pulmonary circuit
Explain autonomic tone and its significance in controlling visceral function
What will be an ideal response?