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QUIZ: Arthropods, Echinoderms, and Mollusks!

QUIZ: Arthropods, Echinoderms, and Mollusks!

A butterfly, starfish, and octopus. Which are arthropods, echinoderms and mollusks.

Here are fifteen random science questions about arthropods, echinoderms, and mollusks! Give it your best shot and show what you know. But more importantly, have fun.

 

Results

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Congratulations!

Woohoo! For this test, 70% or higher is passing. You did it, we knew you could! Right on!

Now let’s celebrate. Who wants to go out for seafood?

Sorry! Try again.

Well, this is kind of awkward. You see, a 70% or higher was considered “passing” for this quiz. And you scored —- well, less.

 

You know what though? We want you to try again. Maybe you had something in your eye, or had too many distractions going on. But hey — we really think you’ll score higher the 2nd time around!

 

So what do ya think? Let’s go again!

 

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#1 A butterfly will go through four dramatically different stages in its life. This is known as _______.

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#2 A squid will only eat meat from other animals. It does not eat plants. That makes it a ______.

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#3 __________________ are invertebrates with soft, unsegmented bodies — most often protected by hard, outer shells.

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#4 A sea urchin will eat seaweed. Then, a crab will eat the sea urchin. Then, a seal comes along and eats the crab. This series of events is known as the ________.

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#5 An ocean-dwelling mollusk whose foot is adapted as tentacles that surround its mouth.

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#6 Krill belong to the group of arthropods that have two or three body sections, five or more pairs of legs, and two pairs of antennae. In other words, it is a ___________.

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#7 Most species of insects’ bodies will go through dramatic changes in form during their life cycle, in a process called ____________.

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#8 Most mollusks are ___________, eating only algae or are filter feeders.

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#9 An octopus gets its energy by eating other organisms (such as small fish), so it is considered to be a ____________.

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#10 What is the study of how organisms interact with their environment?

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#11 Squid do have __________, which are organs that take oxygen from water to help them respirate.

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#12 On an arthropod, the part of its body that contains its digestive system and reproductive tract is called its:

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#13 If an arthropod has three body sections, six legs, one pair of antennae, and one or two pairs of wings, it is an ____________________.

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#14 Starfish and snails are two examples of _________, which are organisms that break down other dead organisms and waste.

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#15 A cicada has an external skeleton or shell that provides support and protection. Organisms such as these are considered to have a/an __________.

finish

Hint! The following list of terms are great to know in biology, zoology, and even every day life. The more you discover and know about the world you live in, the more connections you’ll make to understanding even more things about life.

abdomen, antenna, arachnid, arthropod, biological control, bivalve, carnivore, cephalopod, complete metamorphosis, consumer, crustacean, decomposer, ecology, exoskeleton, food chain, gastropod, gill, gradual metamorphosis, herbivore, insect, metamorphosis, mollusk, molting, nymph, omnivore, open circulatory system, pesticide, pollinator, producer, pupa, radula, thorax

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