Crustaceanns
Name 2 things all crustaceans have in common?
Jointed legs, exoskeletons, 2 body sections, 2 pairs of antennae, and 2 or more pairs of legs and gills.
Name 2 differences between a centipede and a millipede.
Centipede is smaller, venomous , flatter, and have longer antennae. Also, 1 pair of legs per body segment while millipedes have 2 pairs per segment.
What kinds of worms are beneficial to man?
Segmented worms such as Earthworms
What is a way a crayfish is designed for its environment?
It has claws for defense and eating. It’s mouth is on the underside of its body, making it easier to eat food from the bottom of the river.
What do all arthropods have in common?
Jointed legs, exoskeletons, and 2 or more body segments
Why are earth worms beneficial to man?
The break down dead plant material and can be used as fishing bait.
Why might darting backward be a good defense for crayfish.
It is unexpected and can confuse an enemy.
What are some common places you might find arthropods?
Everywhere!!!
What kinds of worms are harmful?
Most other kinds other than segmented are parasitic and are harmful to their host whether they are human or animal host.
How does a scorpion differ from a crayfish?
Scorpion lives on land and has 8 legs, stinger, and no antennae. Crayfish live in water and have 10 legs, antennae, and no stinger.
What arthropods have you seen in your home? Name 2.
Bug, bugs, bugs, spiders, flies, mosquitoes, ants
How can you avoid parasitic worms?
Wash hands, fruit, and veggies. cook veggies and meat.
How can something as large as a blue wale survive by eating only tiny crustaceans?
It easts lots of them. Up to 8,000 lbs per day.
What are the 5 groups of arthropods?
Insects, arachnids, crustaceans, centipedes, and millipedes
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