Editing Invertebrate

[[Category: Biology]]
== Explanation ==
Invertebrates are the type of [[animal]]s that evolved without the [[vertebral column]]. The most common examples of invertebrates are the [[insect]]s, [[worm]]s, and some marine animals like [[crab]]s and [[star fish]]es. They also lack a [[skeleton]] made up of [[bone]]. Instead of a vertebral skeleton, the invertebrates possess [[exoskeleton]]s and outer shells. Insects, being the largest class of invertebrates accounts for about 80 percent of the total species on [[Earth]] approximately.

== Frequently Asked Questions ==
== How do invertebrates respond to stimuli? ==
Invertebrates do possess [[neuron]]s. So they do respond to external [[stimulus|stimuli]]. The invertebrate [[nervous system]] is similar to that of the [[vertebrate]]s and they do work the same way by sending signals electrochemically using the [[action potential]]s.

== What is the biggest known invertebrate? ==
The colossal squid is the largest recorded [[squid]] so far and is considered to be the biggest known invertebrate now. Other bigger invertebrates are the lion's mane [[jellyfish]], the Japanese spider [[crab]], and the Peruvian giant yellow-leg [[centipede]].