Spider
(Redirected from Egg sac)
Spider
A spider is an arthropod that belongs to the order Araneae. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms[1]. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every habitat with the exceptions of air and sea colonization[2].
Anatomy[edit | edit source]
Spiders differ from other arthropods in their bodies, which are divided into two tagmata: the prosoma, or cephalothorax, and the opisthosoma, or abdomen[3].
Behavior[edit | edit source]
Spiders exhibit a range of behaviors that include predation, courtship, and the building of webs or other types of spider silk structures[4].
Classification[edit | edit source]
Spiders are classified in the order Araneae, one of the three orders in the larger group of arachnids. The other two orders are Scorpiones (scorpions) and Opiliones (harvestmen)[5].
See also[edit | edit source]
References[edit | edit source]
- ↑ "Spider". Britannica. Retrieved 20 April 2020.
- ↑ "Spider". Britannica. Retrieved 20 April 2020.
- ↑ "Spider". Britannica. Retrieved 20 April 2020.
- ↑ "Spider". Britannica. Retrieved 20 April 2020.
- ↑ "Spider". Britannica. Retrieved 20 April 2020.
External links[edit | edit source]
- Spider at Britannica
| Spider Resources | |
|---|---|
|
 |
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD
|
WikiMD's Wellness Encyclopedia |
| Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
WikiMD is not a substitute for professional medical advice. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD
