This and That
Ecology
Form/Function
Evolution
Growing
100
a crab that lives in warm, shallow coastal waters on the sea floor is classified as an _______.
arthropod
100
where do arthropods live?
virtually any habitat
100
Mouthpart range from pinchers or fangs to sickle-shaped jaws that can cut through the prays ______.
tissue
100
when did the first arthropod appear?
600 million years ago
100
molting is when an arthropod outgrows there ____
exoskeleton
200
what is the phylum and class of the peacock spider?
Phylum: arthropoda Class: arachnida
200
how many species of arthropods are threatened
77
200
what does air leave the tracheal tubes through?
Spiracles: which are small openings located along the side of the body.
200
the evolution of arthropod by natural selection has result in fewer what?
body segments
200
what controls molting?
the indocrine system
300
what do all insects belong to?
unirmians
300
what do they feed on?
all kinds of plants and animals
300
what coordinates the movements of indivual legs and wings?
Ganglia: groups of nerve cells
300
what did the body of an arthropod used to resemble?
trilobite
300
as time for molting comes what digests the inner part of the exoskeleton?
skin glands
400
how do insects communicate?
using sounds, visual, chemical, and other types of signals
400
name two of the three invertabrate animals that are there predators
bats, rodents, and fish
400
What do males arthropods do with the sprem when the females relaease eggs into the external enviroment?
shed it around the eggs
400
how many segments do spiders or insects have?
two or three
400
how long can it take for the animal to pull itself out of the remains of the original skeleton?
up to several hours
500
how many different types of arthropods did i mention?
3 peacock spider horseshoe crab insects in general
500
do arthropods live on only living or only dead plants or animals or both?
both
500
After blood leaves the blood vessels and moves through sinuses, or cavitives, then what happens?
it then collects in a large sinus surrounding the heart.
500
what are highly specialized appendages used for?
feeding, movement, and other functions.
500
how many times do they molt between hatching and adult hood?
several
M
e
n
u