Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password

Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Question

Phylum Arthropoda
click to flip
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know

Question

Subphylum Chelicerata
Remaining cards (25)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Higher Invertebrates

Biodiversity

QuestionAnswer
Phylum Arthropoda Greatest number are insects. Characteristics that they share are: segmentation, hard exoskeleton, jointed appendages. Four subphyla: Trilobitomorpha, Cheliceriformes, Uniramia, Crustacea.
Subphylum Chelicerata Posess chelicerae: feeding appendages- pincers or fangs. 3 living classes: Merostamata, Arachnida, Pycnogondia. 6 pairs of appendages, cephalothorax, abdomen. (No antennae or mandible)
Class Merostama Horseshoe crabs.Bridge to medical discovery- principles of vision & screening for diseases. Covered with single sheet of exoskeleton- CARAPACE. Book gills- areas of gas exchange, blood circulates & oxygen is removed from water. Telson- Long tail spike.
Class Arachnida Spiders, scorpions, ticks, mites. Have a pair of chelicera, pair of pedipalps, 4 pairs of legs. Gas exchange through book lungs- modified & internalized book gills.
Subphylum Uniramia 3 classes. Diplopoda (millipedes), Chilopoda (centipedes), Insecta
Class Insecta Contains more specied than any other group in the world. Butterflies, moths, bees, mosquitoes, flies, termites. Tracheal system- gas exchange, chitin lined tubes that carry oxygen directly to cells throughout the body.
Spiracles Small spots along both sides of the abdomen. They are openings into the tracheal system of the grasshopper- gas exchange. It has the ability to close the spiracles to avoid water loss by evaporation.
Hemocoel Space that separates the body wall from the internal organs. This space is filled w/ a colorless fluid- hemolymph which is circulated by the heart.
Malpighian tubules Metabolic wastes are present in hemolymph and Malpighian tubules remove these wastes.
Journey of waste material Esophagus- narrow extension of mouth- crop stores food until pass into the gastric ceca- fingerlike pouches that connect the crop to the stomach, secrete digestive enzymes- food absorption. Travels to stomach, then intestine, into rectum, & through anus.
Subphylum Crustacea Crabs, lobsters, shrimp, barnacles, copepods, water fleas, wood lice. Biramous- have clawed appendages. Have appendages on abdomen. Some small crustaceans can perform gas exchange through cuticle, while others use gills.
Class Malacostraca 60% of subphylum Crustacea. Most are food sources for humans- crabs, lobster, shrimp, crayfish. Tripartite- 3 segments (head, thorax, abdomen)
Cervical groove Indentation on the carapace- separates the 2 regions of the cephalothorax.
Rostrum Point at the anterior portion of the head formed by exoskeleton
Uropods Tail fan is made of. surrounding a triangular shaped telson
Oviduct Tude that leads from the ovaries to the ventral surface of the animal.
Stomach 1. Cardiac- grinds food. 2. Pyloric- contains enzymes to further digest food.
Green glands Excretory organs. Located directly behind the antenna & underneath the brain. Also called antennal glands.
Phylum Echinodermata Sea lilies, feather stars, brittle stars, sea stars, sea urchins, sea cucumbers, sea daisies. 5 pointed (pentamerous) radial symmetry in adults, complex water vascular system, calcareous ossicles which form endoskeleton, mutable connective tissue.
Class Asteroida 2nd large group, 1600 species sea stars. Gonads & parts of digestive tract in each arm. AUTOMIZE- arm will later be regenerated- a form of asexual reprod. If sea star is in pieces, 2 or more can form from only if 1/5 of central disc remains w/ an arm.
Body surface of sea star Oral (bottom) & aboral (top) surfaces.
Dermal Brachiae Found interspersed b/w spines & function in respiratory capabilities. non-calcified
Pedicellariae 2 or 3 calcium carbonate valves that can open or close. Function to remove unwanted debris or organisms from the surface of the animal.
Madreporite Part of the water vascular system & functions as the intake of the water
Ambulacral grooves Tube feet (podia) line these. Ambulacral spines line each side of the ambulacral groove. They protect the tube feet when they are retracted. Ampulla- controls the water flow to the tube foot internally
Perivisceral coelom Main body cavity of the sea star, encompassing all organs. Covered by ciliated epithelium- peritoneum. The cilia control the flow of the coelomic fluid to distribute food & oxygen.
Created by: Cediana Studying
Popular Biology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards