Sponges and Stinging Animals
All the animals in this review don't have a backbone, and because of this we call them. . .
Invertebrates
echinoderms that feed by letting water pass over their "mouths" and just collecting plankton or other tiny life for food are called
filter feeders
a worm that feeds by attaching/inserting itself to a host and surviving off of that host is called a
parasite
Arthropods have a hard outer "armor" that covers their soft body that have no bones underneath. What is this armor called
exoskeleton
All insects have how many pairs of legs
3 pairs (6 in total)
Jellyfish and sea anemones belong to the phylum Cnideria which mean that they ______ their prey
Sting
mollusks with 2 separated shells are called ____. (ex. clam)
bivalves
The type of worms that have bilateral symmetry
flat worms
The term "arthropod" means
jointed-foot
all insects have three body segments called
head, thorax, and the abdomen
Sponges belong to the phylum _____ named for the wholes going thorough their body
Porifera
Echinoderms exhibit ________ __________, which makes them look like the spokes on a wheel (ex. sea star)
radial symmetry
free-living
The type of arthropod with at least 5 pairs of jointed legs and two pairs of antenna, breathe through gills, and often have claws are called
Crustaceans
an insect becomes an adult through the transformative process called
metamorphosis
The fiber optic sponge has thin glassy spines called ___ that allow light to bounce around inside the interior walls and cause a glowing look
spicules
We call mollusks who walk with their stomach like its a foot ___ (ex. snail/slug)
Gastropods
Segmented worms can also be called _____ which literally means "little rings"
Annelids
Arachnids include spiders which spin webs out of an organ called _____
spinnerets
Name at least 3 of the 4 types of mouthparts an insect can have
chewing, piercing, sucking, siphoning
Jellyfish and other animals in the phylum Cnidaria use special cells called ______ to sting their prey
nematocysts
An octopus is an example of a _____, a mollusk without a shell that moves head first
Cephalopod
the hairlike structures that many segmented worms use to grab onto whatever it is crawling on to pull itself along are called
setae
centipedes and millipedes are not distinguished by the total amount of legs, but by what physical characteristic (hint: it does have to do with legs)
centipedes have 1 pair of legs per segment, millipedes have 2 pairs of legs per segment
Incomplete metamorphosis has 1 stage of growth called the ______ stage, while complete metamorphosis has 2 stages of growth called the ____ and _____ stage; both start as eggs and end as adults
nymph; larva (caterpillar)/pupa (chrysalis)