Make up 65% of bone by mass. Consist mainly of tiny calcium phosphate crystals in and around collagen fibers. Responsible for hardness and resistance to compression.
What will be an ideal response?
Hydroxyapatites (mineral salts)
Biology & Microbiology
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During forceful exhalation, the ____ muscles contract
a. diaphragm and abdominal b. external intercostal c. internal intercostal d. diaphragm and external intercostal e. diaphragm and internal intercostal
Biology & Microbiology
What are the complexes that perform RNA post-transcriptional processing called?
a. nucleases b. genetic regulators c. spliceosomes d. intro retainers
Biology & Microbiology
Within a differentiated B cell, the rearrangement of DNA sequences between variable regions and joining regions is accomplished by a(n)_____
A) RNA polymerase B) reverse transcriptase C) epitopase D) recombinase
Biology & Microbiology
The illustration shows a cell in ____ of
mitosis. a. anaphase b. metaphase c. interphase d. prophase e. telophase
Biology & Microbiology