This figure illustrates the microscopic anatomy of spongy bone. What type of cell does number 3 indicate?
A. Osteocyte
B. Bone-lining cell
C. Osteoclast
D. Osteoprogenitor cell
E. Osteoblast
Answer: C
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The interphase period of cell division has ________ distinct phases.
A. 2 B. 3 C. 4 D. 5 E. 6
Agranulocytes lack hemoglobin, whereas granulocytes contain small amounts of globin
Indicate whether the statement is true or false
Which of the following statements concerning implantation is correct?
a. Implantation is accomplished by enzymatic activity of the trophoblastic layer of the blastocyst. b. The endometrium at the site of implantation is converted into the nutrient-rich decidua. c. Implantation occurs within 24 hours after fertilization. d. Both (a) and (b) above are correct. e. All of these answers are correct.
Goblet cells located in the trachea produce ____
a. surfactant b. insulin c. mucus d. amylase