some lizards live in desert habitats & a horned lizard is a kind of lizard ->  some horned lizards live in the desert  some horned lizards live in the desert & a desert is a kind of environment ->  some horned lizards live in a desert environment  organisms are a part of an environment & organisms are living things ->  organisms are living parts of an environment  organisms are living parts of an environment & a horned lizard is a kind of organism ->  a horned lizard is a living part of an environment  some horned lizards live in a desert environment & a horned lizard is a living part of an environment ->  a horned lizard is a living part of a desert environment  if something is a part of something else then that something else contains that something & if something contains something else , then that something else will be the component of that something ->  if something is a part of something else then that something is a component of that something else  a horned lizard is a living part of a desert environment & if something is a part of something else then that something is a component of that something else -> a horned lizard is a living component of a desert environment