Which of the following events occurs last in intramembranous ossification?
A. A membrane of delicate collagen fibers develops.
B. Osteoprogenitor cells become osteoblasts.
C. Periosteum is formed.
D. Spongy bone is formed.
E. Many tiny trabeculae of woven bone develop.
Answer: D
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The ____________________ division of the peripheral nervous system carries information to the CNS. Instructions from the CNS are transmitted via the ____________________ division of the peripheral nervous system to the ____________________ organs
Fill in the blank(s) with correct word
The phase of mitosis that begins with the arrival of a group of single-stranded chromosomes at each pole of the cell is
A. metaphase. B. anaphase. C. telophase. D. prophase. E. S phase.
Which of the following is NOT a function of lysosomes?
A) degrading worn-out or nonfunctional organelles B) help in the formation of cell membranes C) digesting particles taken in by endocytosis D) breaking down bone to release calcium ions into the blood