it introduces characters and a tense situation
It's a venomous snake of the family Elapidae.
no won has an opening
my friends snake poop is brown but mine is yellow and wet REALLY SMELLS
It is an orifice that Snakes excrete their urine and feces from, not like mammals that have two orifices for this action
One example of a simile from "War of the Worlds" is "like a snake." It is found in Chapter 2 when the narrator describes the strange Martian cylinder opening up and the alien emerging from it.
glass snake
through an opening called the cloaca at the base of its tail.
It was swallowed by a snake shortly after the opening of the tomb.
A starfish
The first snake that came to mind when I read the question was... Mamba.
when you go near its baby it will hiss and get angry and bite you
Yes. In North America, that little ditty describes a coral snake, which can be deadly. It refers to the arrangement of stripes around the snake.