You find the skull of a deer in the woods and notice some lines that separate the bones of the skull from each other. These markings are most likely

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation:

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.