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55 Cards in this Set
- Front
- Back
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mantel |
thin layer of tissue that covers the internal organs |
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gills |
they are used to breathe with and they are structures that remove oxygen from the water |
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open circulatory system |
when blood bathes the organs |
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foot |
an organ |
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what are some basic characteristics of a mollusk? |
have mantel, gills, an open circulatory system, have a foot |
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what are some examples of a mollusk? |
clams, mussels, snails, slugs, squid, octopus |
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what are the three major groups of mollusks? |
Gastropods, Bivalves, and Cephalopods |
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what does Gastropod mean? |
Stomach foot |
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how many shells do gastropods have? |
one or none |
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radula |
flexible ribbon of tiny teeth for tearing and scraping food |
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what are 2 examples of gastropods? |
snails and slugs |
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what does bivalves mean? |
2 shells |
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how many shells do bivalves have? |
2 |
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what does it mean to feed by filtering water |
to remove food from the water |
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how do adult bivalves move |
muscular foot |
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what is a characteristic of bivalves? |
they feed by filtering water and |
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what are some examples of bivalves? |
mussels, clams, oysters, scallops |
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what does cephalopod mean? |
head footed |
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how do cephalopods capture food? |
they use their tentacles and crush it with a beak and scrape the flesh with its radula |
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how do bivalves move |
they swim by jet propulsion |
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what are some examples of cephalopods? |
octopus, squid, nautilus |
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what are some characteristics of cephalopods? |
they use tentacles as feet and to capture food, they swim by jet propulsion |
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how do gastropods eat? |
radula |
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how do bivalves eat |
filter water |
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how do cephalopods eat |
tentacles |
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how do gatsropods move? |
foot |
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how do bivalves move? |
foot |
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how do cephalopods move? |
jet propulsion |
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what is the most intelligent group of mollusks? |
cephalopods |
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what does an omnivore eat? |
both plants and animals |
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exoskeleton |
an external skeleton |
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molting |
to shed exoskeleton |
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appendages |
jointed legs |
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antennae |
contain sense organs |
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what are characteristics of Arthropods? |
have exoskeleton, they molt, have bilateral symmetry, have appendages, have antennae, have open circulatory system, have 2 body openings, have a segmented body, reproduce sexually
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what are some examples of arthropods? |
crabs, spiders grasshoppers, centipede |
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what are the 4 groups of arthropods? |
crustaceans, arachnids, millipedes & centipedes, insects |
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what are characteristics of crustaceans? |
they have 2-3 body sections, have 5 or more pairs of legs, they breathe with gills |
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what are some examples of crustaceans? |
crabs, lobsters, crayfish, shrimp, barnacles, pill bugs |
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what are the 2 body sections that arachnids have called? |
cephalothorax and abdomen |
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what are some characteristics of arachnids? |
4 pairs of legs, no antennae, have 2 body sections |
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what are some examples of arachnids? |
spiders, ticks, mites, scorpions |
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what are some characteristics of centipedes and millipedes? |
they have many legs and body segments |
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what are the 3 body sections of an insect? |
head, thorax, abdomen |
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how many legs do insects have? |
3 |
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how many antennae do insects have |
1 pair |
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how many pairs of wings do insects have? |
1 or 2 pairs |
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complete metamorphasis |
four stages.......egg: larvae: pupa: adult |
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what are some examples of insects that go through complete metamorphosis? |
butterfly, beetles, moths, flies |
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gradual metamorphasis |
3 stages....egg: nymph: adult |
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what are some examples of insects that go through gradual metamorphosis? |
grasshoppers, cockroaches, termites, dragonflies |
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what key roles do insects play? |
they are decomposers, and pollinators, and pests, and consumers of plants, and prey, and they make usable products for us, and disease carriers, and food for us |
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pollination |
move pollen among plants |
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biological control |
natural predator or disease is released into an area to fight pests |
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what are some characteristics about echinoderms |
are invertebrates, have an internal skeleton, have tube feet, have radial symmetry, they reproduce sexually, have a water vascular system, have spikes, live in salt water, go through complete metamorophasis |
