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Q 1/83
Score 0
Soft-bodied, carnivorous animals that have stinging tentacles arranged in circles around their mouths. They are the "simplest" animals to have body symmetry and specialized tissues.
30
Cnidarians
Q 2/83
Score 0
Stinging cells
30
Nematocysts
Cnidocytes
83 questions
Q.
Soft-bodied, carnivorous animals that have stinging tentacles arranged in circles around their mouths. They are the "simplest" animals to have body symmetry and specialized tissues.
1
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Q.
Stinging cells
2
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Q.
A poison-filled, stinging structure that contains a tightly coiled dart
3
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A cylindrical body with armlike (waving) tentacles that look like little feet
4
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A motile, bell-shaped body with the mouth on the bottom (dangling tentacles)
5
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A digestive chamber with one opening
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A loosely organized network of nerve cells that together allow cnidarians to detect stimuli such as the touch of a foreign object
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Consists of a layer of circular muscles and a layer of longitudinal muscles that, together with the water in the gastrovascular cavity, enable the cnidarian to move
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Takes place outside the female's body; the sexes are often separate---each individual is either male or female; The female releases eggs into the water, and the male releases sperm.
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Contains jellyfish; "cup animals"; live their lives primarily as medusa(adult); size varies; some may be deadly
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Contains hydras and other related animals; microscopic; polyp body form; can move by summersaulting
11
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Contains sea anemones and corals, animals that have a polyp stage in their life cycle; "flower animals"; all live as polyps
12
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Hydra, anemone, jellyfish...
13
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Animals that do not have a backbone, or vertebral column: microscopic dust mites, giant squids
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Animals that have a backbone: fishes, amphibians, reptiles, birds, mammals
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Eat plants
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Eats other animals
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Aquatic animal that strains tiny floating organisms from water
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Two species live in close (good) association with each other
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What does 'motile' mean?
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asexually (budding) sexually (egg and sperm)
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carnivores, tentacles grab food
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diffusion
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eliminate waste through mouth
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Two forms (medusae/polyp) they swim
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radial
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Boneless, brainless, eyeless, headless, footless
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Q.
A group of mollusks. The name means head foot. The octopus, squid, nautilus and cuttlefish are in this group.
28
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Cells with pigments that can be manipulated to change the color of cephalopod's skin, allowing it to blend into its surroundings
29
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The cephalopod's ability to allow water inside its body, then quickly squeeze it out, sending a jet stream out of its body and propelling it backward.
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The tube which the stream of water goes out of in jet propulsion.
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A graceful animal that lives on the bottom of the ocean. It can quickly change its color and even its texture to match its surroundings. It has a shell on the inside of its body.
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The internal shell of a cuttlefish
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A cephalopod with ten arms and a beak
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A group of squids
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A nocturnal cephalopod with eight arms and a beak. It lives in shallow waters, spending most of its time on the sea floor.
36
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The parts that detect light in the human or animal eye
37
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A cephalopod that rises and sinks due to gas-filled chambers in its shell. It can have anywhere between 38 and 90 arms.
38
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A large, cream-colored cephalopod with brown, wavy lines and many arms. It is the only cephalopod that creates an external shell.
39
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The thickened area over the head of a nautilus.
40
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A creature in the class polyplacophora. Eight plates make up its shell, and it has neither eyes nor arms.
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The protruding portion of the chiton's mantle.
42
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Soft, slimy creatures with squishy bodies that belong to phylum Mollusca
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Phylum of mollusks
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Either crustaceans or mollusks
45
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Organ inside the body of a mollusk with special chemical properties that converts calcium and other minerals into a shell
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Octopuses and squids are examples of this group of mollusks
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This group of mollusks has two shell halves shaped like a fan , oysters, mussels, and clams
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A tube that is extended when a bivalve is underwater
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The siphon tube that takes in water on a bivalve
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The siphon tube on a bivalve that expels wastes
51
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The most common predator of bivalves; drills hole in bivalve shell and sucks out bivalve
52
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The extended, soft part of the bivalve that is used to crawl along the sea floor
53
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This mollusk can clap its shell open and closed to move short distances in little bursts
54
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Some of these can burrow into coral, rock, ships or piers by secreting a substance that weakens the material and using the edge of their shell to dig and form a hole
55
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Q.
By counting these you can estimate the age of a bivalve; each one represents one year of its life.
56
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Spends its entire adult life in one spot, clinging to rocks, piers, or other structures in the water even when powerful waves slam against them
57
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Attaches itself to one spot, but will move from time to time, usually smooth black, bluish or gray, growing from 1-9 inches
58
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Acts like natural "super glue" to attach mussels to a surface
59
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A mussel in its larval form. It will grow and mature until it becomes an adult
60
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Created by oysters, mussels and clams when something like a bacteria or parasite gets inside the bivalve between the mantle and the shell
61
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The largest pearl in the world which weighed 14 pounds and was the size of a basketball
62
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Fan-shaped mollusk that is the fastest mover of all the bivalves, tiny eyes that form rings around the animal
63
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Q.
Means "stomach foot". Their body is a mass of organs (the stomach) sitting on top of one large foot.
64
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They are scavengers that can smell dead fish in the water and will even catch waves to get to the dead animal faster...within minutes
65
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An organ in gastropods with many denticles or tooth-like spikes allowing them to scrape algae off rocks and into their mouth
66
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Clings to starfish and cuts into them with their radula, eating the soft insides.
67
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The door that seals off a snail's shell
68
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The study of shells; the name is taken from the "conch"
69
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One of the greatest dangers to the conch. Can crush a conch shell with their powerful jaws.
70
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A shell that has been used as a horn for many thousands of years by removing the small tip of the shell
71
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A whelk's radula with a long stalk. Used to probe into other gastropod shells or to pry open bivalve shells.
72
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Papery, spongy masses used to contain the egg of a whelk
73
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A shell that is commonly found on the shore shaped like an ice cream cone, spiraling around and around the tip.
74
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Stalks its victim and crawls up on top of it and covers the prey with its expanded foot causing its prey to suffocate
75
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The inside lining of an abalone and other shells used to make jewelry
76
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Means "naked gills", are disgusting to eat and use bright colors to advertise their bad taste
77
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Q.
A living creature that glows in the dark.
78
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Animals without backbones and represent 95% of the animal kingdom
79
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Have soft bodies and long, stinging body parts. Not really fish.
80
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An invertebrate species that can live for over 100 years.
81
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Q.
What is the world's largest and heaviest creature without a backbone?
82
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Q.
A cehpalopod so smart it sometimes uses tools to hunt.
