--- title: The amphibian room: poison frogs, axolotls and the frog rescue — how Mova does on the tests · Biology description: Lesson 89 of the biology course of Mova's primary school: 5 of 12 tests right, exam 1 of 4, every question with the options, the student's choice, the right answer and why it chose. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/school-run/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/) [home](https://md.mova.elamur.ai/free/en/) / [at school](https://md.mova.elamur.ai/free/en/school-run/) / [Biology](https://md.mova.elamur.ai/free/en/school-run/biology/) / 89 # The amphibian room: poison frogs, axolotls and the frog rescue **Tests:** 5 of 12 right · **Exam:** 1 of 4 right · **Kind:** plain · **Understood:** 13 of 16 · **Run:** 2026-10-18, commit `f3c23ea72` Lesson 89 of the biology course of Mova's primary school, as Mova's small model took its tests: it had read this lesson and the ones before it and learned from their exercises. Each test shows the options in the order the student saw them, its choice, the right answer, the score of every option and why it chose. The lesson itself, sentence by sentence with trees and pragmatics: [the lesson in the corpora](https://md.mova.elamur.ai/free/en/corpora/school/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/). Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: [the lesson's questions in the corpora](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/). ### Test 1 · right ✓ {#t1} In the fairy tale a princess kisses a frog and gets a prince. «worth a try?» - **1.** Yes, but only green frogs — no support - **2.** Yes, if you kiss it at midnight under a full moon, it really works — score 3 - **3.** Only toads turn into princes — score 7 - **4.** No; it does nothing magic, and some frogs have skin poisons — **← Mova's choice** · **✓ the right answer** · score 8 **Why:** It took the question to ask which statement is true. It chose option 4 with score 8, against 7 for the next best. Its support: lesson 89, line 5: «Wild poison dart frogs have poison in their skin, and their bright colours warn predators; zoo-bred ones are not poisonous because their poison comes from the…», reached through the option's own match among the sentences about the question's things. What matched: the same doer «wild dart frogs» (+3); the same light verb (be, have, do, get, go) (+3); the same thing acted on «poison» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/t1/) ### Test 2 · wrong ✗ {#t2} «my nan says touch a toad and you get warts» What is right? - **1.** Your nan is right, toads spread warts to anyone who picks them up — **← Mova's choice** · score 3 - **2.** Warts come from a human virus; toad bumps are glands — **✓ the right answer** · no support - **3.** Warts come from eating frogs — no support - **4.** Only frogs give warts, not toads — score 2 **Why:** It took the question to ask which statement is true. It chose option 1 with score 3, against 2 for the next best. Its support: lesson 32, line 5: «Many old stories about them are wrong: toads do not give you warts, and salamanders are not born in fire, they just ran out of damp logs thrown on the fire.», reached through the option's own match among the sentences about the question's things. What matched: the same doer «toads» (+3); the same thing acted on «warts» (+2). Against it: a different action (counts against) (-2). The right option, 2, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/t2/) ### Test 3 · wrong ✗ {#t3} An axolotl has 4 legs, 1 tail and 3 gill stalks on each side. How many gill stalks altogether? - **1.** 8 — **← Mova's choice** · no support - **2.** 3 — no support - **3.** 4 — no support - **4.** 6 — **✓ the right answer** · no support **Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/t3/) ### Test 4 · wrong ✗ {#t4} 5 frogs in the tank, sorry 6, one was behind the leaf. how many legs - **1.** 30 — **← Mova's choice** · no support - **2.** 24 — **✓ the right answer** · no support - **3.** 20 — no support - **4.** 12 — no support **Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/t4/) ### Test 5 · wrong ✗ {#t5} What would happen if a frog's skin dried out? - **1.** Nothing, frog skin is waterproof — no support - **2.** It would just breathe faster through its nose instead — **← Mova's choice** · score 4 - **3.** It would slowly turn into a toad — score 2 - **4.** It could not breathe properly — **✓ the right answer** · score -2 **Why:** It took the question to ask what happens next. It chose option 2 with score 4, against 2 for the next best. Its support: lesson 77, line 14: «A fungus disease called chytrid, spread partly by the animal trade, has harmed hundreds of kinds of frogs by attacking the skin they breathe and drink through;…», reached through what followed the sentence the question matched. What matched: the same action «breathe» (+5). Against it: a different doer (counts against) (-1). The right option, 4, scored -2. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/t5/) ### Test 6 · right ✓ {#t6} «axolotls are everywhere in pet shops, how can they be endangered» What is right? - **1.** Pet ones are a different animal — no support - **2.** They are not endangered at all, there are millions of them in the lakes — no support - **3.** Wild ones are almost gone, even though many live in homes — **← Mova's choice** · **✓ the right answer** · score 5 - **4.** Only pink ones are endangered — no support **Why:** It took the question to ask what something is like. It chose option 3 with score 5, the only option with support. Its support: lesson 89, line 10: «Axolotls are salamanders that keep their feathery gills and live in water all their lives; they come from lakes near Mexico City and are almost gone in the wil…», reached through the same lesson line as the sentence the question matched. What matched: the same action «live» (+3); the same place «labs» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/t6/) ### Test 7 · wrong ✗ {#t7} Your mate wants to pick up a bright yellow frog on holiday in Colombia. What should you say? - **1.** Fine, as long as you wash your hands well with soap afterwards — **← Mova's choice** · score 5 - **2.** Fine, all frogs are harmless — score 3 - **3.** Only red frogs are poisonous — score 3 - **4.** Do not touch it; wild bright frogs can be deadly poisonous — **✓ the right answer** · score 3 **Why:** It took the question to ask what it is done to. It chose option 1 with score 5, against 3 for the next best. Its support: lesson 72, line 2: «Singing Happy Birthday twice while you wash with soap is not a silly rule: it gives the soap about 20 seconds to grab the grease where germs hide and let the w…», reached through the option's own match among the sentences about the question's things. What matched: the same circumstance (+3); the same action «wash» (+2). The right option, 4, scored 3. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/t7/) ### Test 8 · right ✓ {#t8} Why would a fungus that attacks skin be so deadly to frogs? - **1.** Frogs eat the fungus by mistake and choke on it — score 2 - **2.** Frogs need their skin to breathe and take in water — **← Mova's choice** · **✓ the right answer** · score 3 - **3.** Frog skin is their only food — no support - **4.** The fungus makes them too slow to jump — score 0 **Why:** It took the question to ask why something happens (its cause). It chose option 2 with score 3, against 2 for the next best. Its support: lesson 32, line 8: «Frogs breathe partly through their thin, moist skin and drink through their skin, so they need damp places and are harmed quickly by pollution.», reached through the option's own match among the sentences about the question's things. What matched: its «because» matches the remembered cause (+3); the same action «need» (+1). Against it: a different thing acted on (counts against) (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/t8/) ### Test 9 · wrong ✗ {#t9} Why would animals living in dark caves lose their eyes over many generations? - **1.** The cold freezes their eyes — no support - **2.** Bats steal their eyes — no support - **3.** In total darkness eyes are no use, so they faded away — **✓ the right answer** · no support - **4.** They poke their eyes out on the sharp rocks in the dark — **← Mova's choice** · score 2 **Why:** It took the question to ask why something happens (its cause). It chose option 4 with score 2, the only option with support. Its support: lesson 47, line 7: «Prey such as rabbits and deer have eyes on the sides of the head to see almost all the way round; predators such as foxes, owls and cats have eyes facing forwa…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «eyes» (+2). The right option, 3, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/t9/) ### Test 10 · wrong ✗ {#t10} «why's that frog's throat blowing up like bubblegum» What is right? - **1.** It is sick and needs a vet — score 5 - **2.** It is about to pop — score 4 - **3.** It swallowed a big gulp of air by mistake and can't burp — **← Mova's choice** · score 7 - **4.** A male is filling his vocal sac to call louder — **✓ the right answer** · no support **Why:** It took the question to ask why something happens (its cause). It chose option 3 with score 7, against 5 for the next best. Its support: lesson 26, line 9: «Baleen whales like humpbacks and blue whales have no teeth, but baleen plates that sieve krill and small fish from huge mouthfuls of water; a blue whale's thro…», reached through the cause of the sentence the question matched. What matched: the same action «swallow» (+4); the same doer «throat» (+2); a different thing acted on (counts against) (+1). The right option, 4, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/t10/) ### Test 11 · right ✓ {#t11} Why might a see-through frog be hard for a bird to spot on a leaf? - **1.** It is too small to eat — score 1 - **2.** It hides under the leaf all day and never comes out to feed — score 2 - **3.** Light passes through, so it looks like part of the leaf — **← Mova's choice** · **✓ the right answer** · score 4 - **4.** Birds cannot see the colour green — score -3 **Why:** It took the question to ask why something happens (its cause). It chose option 3 with score 4, against 2 for the next best. Its support: lesson 89, line 17: «Glass frogs have see-through bellies, and in 2022 scientists found that a sleeping glass frog hides most of its red blood in its liver to look almost clear.», reached through the cause of the sentence the question matched. What matched: the same action «look» (+4). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/t11/) ### Test 12 · right ✓ {#t12} A dog in Australia bites a cane toad in the garden. What is likely? - **1.** The dog can get very ill from the toad's poison — **← Mova's choice** · **✓ the right answer** · score 9 - **2.** The dog gets warts all over its mouth and nose — no support - **3.** The toad turns into a prince — no support - **4.** Nothing, toads are harmless — no support **Why:** It took the question to ask which statement is true. It chose option 1 with score 9, the only option with support. Its support: lesson 89, line 15: «Kissing a frog will not make a prince, and many toads have poison glands behind their eyes; dogs that bite cane toads in Australia can get very ill.», reached through the option's own match among the sentences about the question's things. What matched: the same doer «dogs» (+3); the same property (+3); the same light verb (be, have, do, get, go) (+3). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/t12/) ### Exam question 1 · formal language · wrong ✗ {#e1} Identify the principal reason for which poison dart frogs bred in zoological collections are not toxic. - **1.** Glass enclosures neutralise all toxins — no support - **2.** They belong to an entirely different family — **← Mova's choice** · score 2 - **3.** Their toxins derive from wild ants and mites absent in captivity — **✓ the right answer** · no support - **4.** Their toxins are surgically removed by keepers at regular intervals — no support **Why:** It took the question to ask which statement is true. It chose option 2 with score 2, the only option with support. Its support: lesson 89, line 14: «Male frogs fill a vocal sac with air to make their calls louder, telling females where they are and what kind of frog they are.», reached through the option's own match among the sentences about the question's things. What matched: the same doer «male frogs» (+3); the same circumstance (+1). Against it: a different action (counts against) (-2). The right option, 3, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/e1/) ### Exam question 2 · formal language · wrong ✗ {#e2} Select the response consistent with the established facts concerning the chytrid fungus. - **1.** It is beneficial to frogs and improves their breathing through the skin — **← Mova's choice** · score 4 - **2.** It is transmitted to frogs by human warts — no support - **3.** It attacks frog skin and was spread partly by people moving frogs — **✓ the right answer** · no support - **4.** It affects only frogs maintained in zoos — score 3 **Why:** It took the question to ask which statement is true. It chose option 1 with score 4, against 3 for the next best. Its support: lesson 89, line 3: «A pink axolotl smiles from its tank with feathery gills like a baby that never grew up, and a sign warns that a fungus is killing frogs all over the world, so…», reached through the option's own match among the sentences about the question's things. What matched: the same doer «fungus» (+3); the same circumstance (+1). The right option, 3, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/e2/) ### Exam question 3 · formal language · right ✓ {#e3} Which of the following statements most accurately characterises the axolotl? - **1.** A frog which loses its gills within a year and thereafter lives on land — no support - **2.** A salamander which keeps its juvenile gills and remains aquatic — **← Mova's choice** · **✓ the right answer** · score 2 - **3.** A fish native to the caves of Slovenia — no support - **4.** A lizard capable of flight — no support **Why:** It took the question to ask who or what does it. It chose option 2 with score 2, the only option with support. Its support: lesson 44, line 2: «The axolotl is a salamander that never grows up: it keeps its baby gills, the feathery frills on its head, and stays in water all its life, smiling a smile tha…», reached through the option's own match among the sentences about the question's things. What matched: the same action «keep» (+2); the same thing acted on «baby gills» (+1). Against it: a different doer (counts against) (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/e3/) ### Exam question 4 · formal language · wrong ✗ {#e4} Ascertain the cause of warts upon the human skin. - **1.** Exposure to the chytrid fungus — **← Mova's choice** · no support - **2.** Contact with the skin of toads — no support - **3.** A virus transmitted between persons — **✓ the right answer** · no support - **4.** The consumption of frogs — no support **Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/89-amphibian-room-poison-frogs-axolotls-frog-rescue/e4/) - ← previous: [88. The reptile house: Komodo dragons, chameleons, t…](https://md.mova.elamur.ai/free/en/school-run/biology/88-reptile-house-komodo-chameleons-tortoises-crocodiles/) - next →: [90. The aquarium: the coral reef tank](https://md.mova.elamur.ai/free/en/school-run/biology/90-aquarium-the-coral-reef-tank/) - ↑ back to [Biology](https://md.mova.elamur.ai/free/en/school-run/biology/)