3 characteristics shared by all arthropods
exoskeleton, segmented body, jointed appendages
rigid outer covering
the arthropod's protective suit must be shed and replaced from time to time
an arthropod's blood carries
food throughout its body
oxygen is carried to all the cells in an arthropod's body by
gills, book lungs, and/or a system of air tubes
an arthropod that has a hard exoskeleton, 2 pairs of antennae, and mouth parts that crush and grind food. some can regenerate certain parts of their body.
crabs, lobsters, barnacles, and shrimp
most crustaceans live in
watery environments and get oxygen through gills
have one pair of legs in each segment
are carnivores, inject poison using their claws
have 2 pairs of legs in each segment
live on plants
body divided into 3 parts: head, chest, abdomen. 3 pairs of legs attached to the chest
a dramatic change in form
insect in its earliest stage after hatching
stage of metamorphosis in which an insect changes from a larva into an adult
Chemicals secreted by animal species that influence the behavior of other animals of the same species
ways an insect attracts a mate
buzz (cicada), light (firefly), pheromone (gypsy moth)
stingers, camouflage, eyespots, spray chemicals
spiny skin, internal skeleton, 5 part body, water vascular system, and tube feet
water vascular system
system of fluid-filled internal tubes that carry food and oxygen, remove wastes, help echinoderms move
suction-cuplike tube feet
Insect development consisting of four stages: egg, larva, pupa, and adult.
The transformation of a larva into an adult that looks very different, and often functions very differently in its environment, than the larva.
A type of development in certain insects, such as grasshoppers, in which the larvae resemble adults but are smaller and have different body proportions. The animal goes through a series of molts, each time looking more like an adult, until it reaches full size
organ that has layers of respritory system stacked like the pages of a book, used by some land arthopods for the exchange of gases
connect to the outside of the body through wholes in the exoskeleton to get oxygen
describe different types of arthropod appendages
the difference are claws, walking legs,antine and wings
what is the function of tube feet?
To move and get food
how do starfishes move
They use tube feet
why are arthropods the most numerous phylum of animals
They reproduce quickly
explain why arthropods undergo molting
So they can grow
what is the function of a worker bee in the hive?
To get food to the queen
what is the function of the queen bee in the hive?
To lay eggs
what is the function of the male bee in the hive?
To fertilize the eggs