Muscle cells produce movement by expanding
Indicate whether the statement is true or false
F
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Acquired immunity is a system in which lymphocytes respond to particular antigens they encounter during a lifetime. Another name for acquired immunity is _________ immunity
Fill in the blank with correct word.
Involuntary muscle tissues are
A) smooth muscle tissue and cardiac muscle tissue. B) smooth muscle tissue, skeletal muscle tissue, and cardiac muscle tissue. C) smooth muscle tissue and skeletal muscle tissue. D) cardiac muscle tissue and skeletal muscle tissue.
Sarcoplasm is the
A. cell membrane of a muscle fiber. B. cytoplasm of muscle cells. C. structural and functional unit of the skeletal muscle cell. D. contractile thread that extends the length of the muscle fiber. E. protein strand composed of actin or myosin.
The epidermis is formed of ________ epithelium, and its superficial layer consists of dead cells filled with ________.
A. stratified columnar; keratin B. stratified columnar; fat globules C. stratifed squamous; keratin D. stratified squamous; fat globules