21. Which type of tissue lines the inner surfaces of organs and blood vessels?
a) Epithelial tissue
b) Nervous tissue
c) Connective tissue
d) Muscle tissue
22. Which type of connective tissue attaches muscle to bone?
a) Ligaments
b) Tendons
c) Cartilage
d) Adipose tissue
23. Which type of muscle tissue is responsible for involuntary movements?
a) Skeletal muscle
b) Smooth muscle
c) Cardiac muscle
d) Striated muscle
24. What is the innermost layer of the skin called?
a) Epidermis
b) Dermis
c) Hypodermis
d) Subcutaneous layer
25. Which type of tissue is responsible for transmitting pain signals?
a) Epithelial tissue
b) Nervous tissue
c) Connective tissue
d) Muscle tissue