Understanding Vivarium Substrates. By A. C. Highfield. Libyan tortoise-this tortoise requires a sandy, dry substrate. If maintained on grass or upon a moist substrate it will suffer shell and respiratory infections.Along with heating and lighting systems, the choice of substrate in tortoise vivaria and terraria often causes a great deal of confusion to keepers.Some substrates are excellent, others positively lethal.nderstanding Vivarium Substrates. By A. C. Highfield. Libyan tortoise-this tortoise requires a sandy, dry substrate. If maintained on grass or upon a moist substrate it will suffer shell and respiratory infections.
In their general structure, heterocyclic compounds resemble cyclic organic compounds that incorporate only carbon atoms in the ringsâfor example, cyclopropane (with a three-carbon-atom ring) or benzene (with a six-carbon-atom ring)âbut the presence of the heteroatoms gives heterocyclic compounds physical and chemical properties that are often quite ...
Best Answer: Benzene is a molecule (C6 H6) that has six carbons and six hydrogens in a conjugated system (alternating double bonds). The conjugated double bonds make Benzene aromatic.Aromatic describes conjugated ring systems (rings that feature a double bond for every other Carbon-Carbon bond such as seen with Benzene). However, aromatic rings can feature more than 6 carbons. Benzene is an example of an aromatic compound.Phenyl is usually used in the term Phenyl group. You can think of a phenyl group as what you call Benzene when it is a functional group for a larger molecule (or a substituent). One of benzene's hydrogens is replaced by the attachment of a more complex molecule.Source(s): One year college organic chemistry.henyl is usually used in the term Phenyl group. You can think of a phenyl group as what you call Benzene when it is a functional group for a larger molecule (or a substituent). One of benzene's hydrogens is replaced by the attachment of a more complex molecule. Source(s): One year college organic chemistry.