Phylum Arthropoda Flashcards
What does Arthropoda mean?
Jointed foot
Do Arthropoda have segmented bodies?
Yes!
What is an advantage of having an exoskeleton?
Covers, supports, and protects the animal
What is a disadvantage of having an exoskeleton?
In order to grow, the exoskeleton must be shed, leaving the animal soft and vulnerable until hardening occurs—called molting.
What are examples of Arthropoda?
1) Insects
2) Arachnids
3) Centipedes
4) Millipedes
5) Crustacea (crustaceans)
What are the three segments of an insect’s body and what is on each segment?
1) Head - has one pair of antennae, and simple and compound eyes
2) Thorax - has six legs and wings if the insect has them
3) Abdomen - where reproductive organs are found, and spiracles
What are spiracles?
Openings in the abdomen where oxygen enters the body.
How many stages are in the complete metamorphosis process? What are the stages?
Four - egg, larva, pupa, adult
What are some insects that go through complete metamorphosis?
Bees, butterflies, beetles, and flies
How many stages does incomplete metamorphosis have? What are the stages?
Three - egg, nymph, adult
What are some insects that go through incomplete metamorphosis?
Grasshoppers, mayflies, crickets, and walking sticks
How many body regions does an arachnid have and what are they/is it called?
Two body regions - cephalothorax and abdomen
What are two things that insects have that arachnids don’t?
Antennae and wings
What are five examples of arachnids?
1) Scorpions (venom filled stinger)
2) Spiders (release enzymes into prey to turn them into a soupy meal)
3) Mites (very small, often microscopic)
4) Ticks (parasites, can cause Lyme Disease and Rocky Mountain Spotted Fever)
5) Horseshoe crabs (very closely related to arachnids)
What are four characteristics of Centipedes?
1) Carnivores
2) Flattened bodies
3) Two legs per segment
4) Venomous claws
What are three characteristics of Millipedes?
1) Detritivores and herbivores
2) Round bodies
3) Four legs per segment
What are four characteristics of Crustacea (crustaceans)?
1) Ten legs
2) Protective exoskeletons
3) Limbs regenerate
4) All have gills
What are six examples of crustaceans?
1) Crabs
2) Crayfish
3) Shrimp
4) Barnacles
5) Pill bugs/Roly poly’s
6) Lobsters
What are two benefits of Arthropods?
1) Food source
2) Pollination of flowers
What are three problems with Arthropods?
1) Insect pests on crops
2) Transfer human diseases
3) Damage property
