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.
Geckos are not poisonous at all, neither for humans nor for their prey. Only very few lizard species have a venom and of those, only the Gila monster and the Komodo dragon are â¦ dangerous to humans (although with an attacking Komodo, venom is the least of your worries). + 53 others found this useful. Nola Sripermata.