Hydroxyapatities are? a. the inorganiuc calcium compounds in bone matrix b. the collagen part of the bone matrix c. the concentric ring structures see in compact bone d. channels through which nutrients reach osteocytes

The correct answer is a. Hydroxyapatites are calcium based and make up compact bone matrix.

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The answer is option A.

Explanation:

A noteworthy part and a fundamental element of ordinary bone and teeth. Hydroxyapatite makes up bone mineral and the framework of teeth. It is hydroxyapatite that gives bones and teeth their inflexibility. Hydroxyapatite atoms can assemble together (crystalize) to frame minuscule clumps.Seventy percent of bone is comprised of the inorganic mineral hydroxyapatite, which incorporates calcium phosphate, calcium carbonate, calcium fluoride, calcium hydroxide and citrate.

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: