Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
What does arthropod mean? |
Jointed foot |
|
|
External body part that protrudes from an organisms body is what? |
Appendage |
|
|
Joints allow an appendage to be what? |
Flexible |
|
|
There are how many species of Arthropods? |
1,100,000 |
|
|
Arthropods make up what percent of all animals? |
80 |
|
|
Arthropods are segmented. |
True |
|
|
What is a strong but flexible outer covering composed of a carbohydrate polysaccharide called chitin? |
Exoskeleton |
|
|
What does an exoskeleton function in? |
Protection, attachment for muscles, locomotion, and prevention of disiccation. |
|
|
What are the two layers of an exoskeleton? |
Epicuticle and procutile |
|
|
What is sclerotization? |
Proteins and other chemical cross link to harden and darken exoskeleton. |
|
|
Exoskeleton is light. |
False |
|
|
Molting is also called what? |
Ecdysis |
|
|
3 major body segments of Arthropods are what? |
Head, thorax, and abodomen |
|
|
What do you call a head fused with a thorax? |
Cephalathorax |
|
|
What are mandibles? |
Jaws |
|
|
What are chelicerae? |
Pinchers/Fangs |
|
|
Digestive system has what? |
Mouth, esophagus, stomach, intestine, and anus. |
|
|
Simple eyes are called what? |
Ocelli |
|
|
Arthropods can’t breathe through exoskeleton. |
True |
|
|
Spiders have small lungs called what? |
Book lungs |
|
|
Arthropods breathe through what? |
Tracheae Tubes |
|
|
Arthropods have a closed circulatory system. |
False |
|
|
Arthropods are dioecious. |
True |
|
|
What are the two kinds of metamorphosis? |
Complete and incomplete |
|
|
Class arachnidia includes spiders. |
True |
