Difference between revisions of "Invertebrate"
Created page with "Category: Biology == Explanation == Invertebrates are the type of animals that evolved without the vertebral column. The most common examples of invertebrates are..." |
m |
||
| (4 intermediate revisions by 2 users not shown) | |||
| Line 4: | Line 4: | ||
== Frequently Asked Questions == | == Frequently Asked Questions == | ||
| − | == How do invertebrates respond to stimuli? == | + | === 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]]. | ||
Latest revision as of 17:17, 24 February 2017
Contents
Explanationedit
Invertebrates are the type of animals that evolved without the vertebral column. The most common examples of invertebrates are the insects, worms, and some marine animals like crabs and star fishes. They also lack a skeleton made up of bone. Instead of a vertebral skeleton, the invertebrates possess exoskeletons and outer shells. Insects, being the largest class of invertebrates accounts for about 80 percent of the total species on Earth approximately.
Frequently Asked Questionsedit
How do invertebrates respond to stimuli?edit
Invertebrates do possess neurons. So they do respond to external stimuli. The invertebrate nervous system is similar to that of the vertebrates and they do work the same way by sending signals electrochemically using the action potentials.
What is the biggest known invertebrate?edit
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.