Arachnids Species

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Questions and Answers

Which characteristic is unique to scorpions compared to spiders?

  • External exoskeleton
  • Presence of chelicerae
  • Segmented body plan
  • Pedipalps modified into pincers (correct)

How does the European lobster differ from other decapod crustaceans?

  • Presence of a carapace
  • Marine habitat
  • Large, asymmetrical claws (correct)
  • Ten walking legs

What primary ecological role do water mites fulfill in aquatic environments?

  • Parasites of aquatic insects and other invertebrates (correct)
  • Decomposers of organic matter
  • Filter feeders, clarifying the water column
  • Primary producers through photosynthesis

What distinguishes barnacles from other crustaceans?

<p>Sessile adult stage (B)</p> Signup and view all the answers

Which survival advantage do spiders gain from having the ability to produce silk?

<p>Versatile prey capture and protection (D)</p> Signup and view all the answers

What is the adaptive significance of the fiddler crab's enlarged claw?

<p>Attracting mates through display (D)</p> Signup and view all the answers

How does the behavior of the diving bell spider (vodouch stříbřitý) uniquely adapt it to its aquatic habitat?

<p>Creating an air bubble for underwater breathing (B)</p> Signup and view all the answers

What key feature distinguishes mites from other arachnids?

<p>Fused body segments (B)</p> Signup and view all the answers

How does the parasitic lifestyle of Varroa mites affect honeybee colonies?

<p>Spreading viral diseases and weakening bees (C)</p> Signup and view all the answers

In what way does the life cycle of fairy shrimp (žábronožka) demonstrate adaptation to temporary aquatic habitats?

<p>Production of desiccation-resistant cysts (D)</p> Signup and view all the answers

What ecological impact do flour mites (skladokaz moučný) have in human-managed environments?

<p>Contamination of stored food products (D)</p> Signup and view all the answers

How do harvestmen (sekáč) differ fundamentally from spiders in terms of body structure?

<p>Harvestmen have a fused cephalothorax and abdomen. (C)</p> Signup and view all the answers

What role do spider mites (sviluŝka chmelová) play in agricultural ecosystems?

<p>Damaging crops as plant pests (C)</p> Signup and view all the answers

What distinguishing characteristic allows the striped lynx spider (křižák pruhovaný) to effectively capture prey?

<p>Actively hunting and jumping on prey (B)</p> Signup and view all the answers

How does the lifestyle of hermit crabs (rak poustevník) demonstrate a co-evolutionary relationship?

<p>Dependence on snail shells for protection (B)</p> Signup and view all the answers

What is the specific feeding adaptation of tadpole shrimp (listonoh)?

<p>Filter-feeding with modified antennae (B)</p> Signup and view all the answers

What is the primary characteristic differentiating ticks from other arachnids?

<p>Parasitic feeding habits (C)</p> Signup and view all the answers

What adaptation allows mantis shrimps (strašek kudlankový) to effectively hunt?

<p>Specialized claws for powerful strikes (B)</p> Signup and view all the answers

How do water fleas (hrotnatka) contribute to aquatic ecosystems?

<p>Filter feeders controlling algal blooms (A)</p> Signup and view all the answers

What distinguishing characteristic do crab spiders (běžník květomilný) possess that enhances their hunting success?

<p>Camouflaging on flowers to ambush prey (B)</p> Signup and view all the answers

What is the primary ecological role of copepods (buchanka) in aquatic food webs?

<p>Key prey item linking primary producers to higher trophic levels (A)</p> Signup and view all the answers

How do woodlice (stejnonozí) contribute to terrestrial ecosystems?

<p>Decomposing organic matter in soil (A)</p> Signup and view all the answers

What is the ecological importance of grass spiders (pokoutník domácí) in their natural habitats?

<p>Controlling insect populations within their web territories (C)</p> Signup and view all the answers

What primary role do crustaceans play in marine environments?

<p>Key consumers and recyclers of nutrients (C)</p> Signup and view all the answers

What environmental condition favors the proliferation of spider mites (sviluŝka chmelová) on agricultural crops?

<p>Drought weather (D)</p> Signup and view all the answers

Which characteristic do scorpions use to hunt prey?

<p>Detecting substrate vibrations (C)</p> Signup and view all the answers

What is the adaptive advantage of the summer tadpole shrimp (listonoh letní) rapid life cycle within temporary ponds?

<p>Maximizing reproduction before the habitat dries (C)</p> Signup and view all the answers

How does the harvestman's (sekáč domácí) ability to regenerate limbs contribute to its survival?

<p>Allowing escape from predators (C)</p> Signup and view all the answers

What is the impact of ticks (Klíště obecné) as vectors of diseases?

<p>Transmit pathogens causing diseases (A)</p> Signup and view all the answers

What benefit does the water flea (hrotnatka obecná) derive from its cyclic parthenogenetic reproduction?

<p>Ability to rapidly colonize favorable environments (C)</p> Signup and view all the answers

In what primary way do sand fleas (blešivec potoční) contribute to coastal ecosystems?

<p>Decomposing organic debris on beaches (C)</p> Signup and view all the answers

How does the behavior of the black widow spider (snovačka americká) contribute to its survival and reproductive success?

<p>Consuming the male after mating to provide nutrients for offspring (B)</p> Signup and view all the answers

What is the long-term ecological consequence of introducing the signal crayfish (rak bahenní) into non-native habitats?

<p>Outcompeting native crayfish (C)</p> Signup and view all the answers

Which of these traits is the most beneficial adaptation of book scorpions (štírek knihový) for living in terrestrial ecosystems?

<p>Ability to withstand prolonged desiccation (B)</p> Signup and view all the answers

What role do false scorpions (štírek knihový) play in their typical environment?

<p>Predators of small insects and mites (B)</p> Signup and view all the answers

What are the key characteristics that categorize "arachnids"?

<p>Eight legs, two body segments, and chelicerae (B)</p> Signup and view all the answers

What key adaptation of the velvet mite (sametka zarděnková) helps them thrive in diverse terrestrial habitats?

<p>Ability to enter diapause during harsh conditions (A)</p> Signup and view all the answers

How does the wandering spider (slíďák tatarský) differ from other spiders in hunting practices?

<p>It actively hunts without using a web. (D)</p> Signup and view all the answers

Which environmental factor most influences the distribution and activity patterns of spiders in a given habitat?

<p>Abundance of prey insects (A)</p> Signup and view all the answers

Flashcards

Štír středomořský

A scorpion found in the Mediterranean region.

Štír tlustorepý

A scorpion with a thick tail.

Veleštír obrovský

A type of large scorpion.

Křižák obecný

A common garden spider.

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Křižák pruhovaný

A spider with stripes.

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Běžník květomilný

A crab spider that lives on flowers.

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Stepník rudý

A red spider.

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Stepník moravský

A spider found in Moravia.

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Slíďák tatarský

A wolf spider from the Tatar region.

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Skákavka pruhovaná

A jumping spider with stripes.

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Pokoutník domácí

A house spider.

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Vodouch stříbřitý

A diving bell spider.

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Třesavka sekáčovitá

A cellar spider or daddy long-legs.

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Sklípkan

A tarantula species.

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Snovačka americká

American Black Widow Spider.

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Štírek knihový

A book scorpion.

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Sekáč domácí

A harvestman or opilionid.

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Klíště obecné

A widely distributed tick species.

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Roztočík včelí

A mite that infests bees.

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Varroa jacobsoni

A parasitic mite affecting honeybees.

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Trudník lidský

A face mite.

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Zákožka svrabová

The human itch mite.

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Sametka zarděnková

A red velvet mite.

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Sviluška chmelová

The two-spotted spider mite.

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Skladokaz moučný

A flour mite.

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Žábronožka solná

Brine shrimp.

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Žábronožka letní

Summer fairy shrimp.

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Listonoh jarní

Spring tadpole shrimp.

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Listonoh letní

Summer Tadpole Shrimp.

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Hrotnatka obecná

Common water flea.

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Buchanka

A type of freshwater copepod.

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Vilejš stvolnatý

Goose barnacle.

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Kapřivec plochý

Carp louse.

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Blešivec potoční

A freshwater amphipod.

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Krab houslista

Fiddler crab.

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Humr evropský

European lobster.

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Rak bahenní

Burrowing crayfish.

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Rak říční

A type of crayfish.

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Strašek kudlankový

Mantis shrimp.

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Langusta

Spiny lobster.

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Rak poustevník

Hermit crab.

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Kreveta

Shrimp.

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Garnát

Cleaner shrimp.

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Study Notes

  • Štír středomořský is the name of a scorpion species.
  • Štír tlustorepý is the name of a scorpion species.
  • Veleštír obrovský is the name of a scorpion species.
  • Křižák obecný is the name of a spider species.
  • Křižák pruhovaný is the name of a spider species.
  • Běžník květomilný is the name of a spider species.
  • Stepník rudý is the name of a spider species.
  • Stepník moravský is the name of a spider species.
  • Slíďák tatarský is the name of a spider species.
  • Skákavka pruhovaná is the name of a spider species.
  • Pokoutník domácí is the name of a spider species.
  • Vodouch stříbřitý also called Argyroneta aquatica.
  • Třesavka sekáčovitá is the name of a spider species.
  • Sklípkan is the name of a spider species.
  • Snovačka americká is the name of a spider species.
  • Štírek knihový is the name of a pseudoscorpion species.
  • Sekáč domácí is the name of a harvestman species.
  • Klíště obecné is the name of a tick species.
  • Roztočík včelí is the name of a mite species
  • Varroa jacobsoni is the name of a mite species that parasitizes honeybees.
  • Trudník lidský is the name of a mite species.
  • Zákožka svrabová is the name of a mite species.
  • Sametka zarděnková is the name of a mite species.
  • Sviluška chmelová is the name of a mite species.
  • Skladokaz moučný is the name of a mite species.
  • Žábronožka solná is the name of a brine shrimp species.
  • Žábronožka letní also known as Branchipus stagnalis.
  • Listonoh jarní is the name of a tadpole shrimp species.
  • Listonoh letní is the name of a tadpole shrimp species.
  • Hrotnatka obecná is the name of a water flea species.
  • Buchanka is the name of a copepod species.
  • Vilejš stvolnatý is the goose barnacle species.
  • Kapřivec plochý is the name of a fish louse species.
  • Blešivec potoční is the name of a freshwater shrimp species.
  • Krab houslista is the name of a fiddler crab species.
  • Humr evropský is the name of a lobster species.
  • Rak bahenní is the name of a crayfish species.
  • Rak říční is the name of a crayfish species.
  • Strašek kudlankový is the name of a mantis shrimp species.
  • Langusta is the name of a spiny lobster species.
  • Rak poustevník is the name of a hermit crab species.
  • Kreveta is the name of a shrimp species.
  • Garnát is the name of a shrimp species.

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