Specifically, it is the tissues in the bone which makes up the skeleton. This bone tissue is composed of cells with extracellular matrix that is calcified. Bone contains collagen and calcium phosphate which contribute to it mineral structure and firmness.
Newts are generally a safe pet, however there are a few species that are known to carry salmonella, and other species are in fact poisonous, but only if consumed. The brightly colored bellies of a newt are one way to tip a person off to their toxicity.ewts are generally a safe pet, however there are a few species that are known to carry salmonella, and other species are in fact poisonous, but only if consumed. The brightly colored bellies of a newt are one way to tip a person off to their toxicity.
Firstly, snakes are not poisonous; they are venomous (poison is  ingested, venom is injected). The Belcher's sea snake  (Hydrophis Belcheri) is probably the most venomous, t â¦ hough  testing is imperfect and we don't know for sure. The Beaked  seasnake (Enhydrina schistosa) is another candidate.