Koalas, wombats, Tasmanian devils and the platypus

Tests: 5 of 12 right · Exam: 1 of 4 right · Kind: ★★ · Understood: 11 of 16 · Run: 2026-10-18, commit f3c23ea72

Lesson 104 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.

Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: the lesson's questions in the corpora.

Test 1 · ★★ · right ✓

«koala bears are just stoned on eucalyptus lol» What is right?

1. Koalas are not bears and not drugged; their food gives little energy — ← Mova's choice · ✓ the right answer · score 6
2. No, koalas sleep because they hunt at night — no support
3. Yes, the leaves make them dizzy and sleepy, like a strong drug — no support
4. Yes, and that is why they fall from trees — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 6, the only option with support. Its support: lesson 79, line 4: «Cartoons call the koala a bear, draw kangaroos as boxers that hop forever, and make every Australian animal a cuddly toy; real koalas are not bears, and a cass…», reached through the option's own match among the sentences about the question's things. What matched: the same light verb (be, have, do, get, go) (+3); the same thing acted on «bears» (+2); the same doer «real koalas» (+1). · the question and its options parsed, with trees and pragmatics

Test 2 · ★★ · right ✓

Taz from Looney Tunes spins like a tornado and eats anything. What is true of real devils?

1. They are a kind of small bear — score 5
2. They only eat leaves and grass — score 8
3. They do not spin, but they screech and eat bones and fur — ← Mova's choice · ✓ the right answer · score 9
4. They spin round fast like a tornado whenever they are angry — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 9, against 8 for the next best. Its support: lesson 104, line 4: «Taz of Looney Tunes spins like a tornado and eats everything, and cartoons call the koala a bear; a real Tasmanian devil does not spin, though it screeches and…», reached through the same lesson line as the sentence the question matched. What matched: the same action «eat» (+4); the same doer «devil» (+4); the same thing acted on «bones» (+1). · the question and its options parsed, with trees and pragmatics

Test 3 · ★★ · wrong ✗

A police officer finds a fingerprint on a tree in an Australian forest. Why might it be a puzzle?

1. Koala fingerprints look very like human ones — ✓ the right answer · no support
2. Wombats paint their fingerprints — no support
3. Kangaroos leave lots of fingerprints on trees — no support
4. Trees make their own fingerprints — ← Mova's choice · score 5

Why: It took the question to ask why something happens (its cause). It chose option 4 with score 5, the only option with support. Its support: lesson 60, line 14: «Beech trees make a thick roof of leaves, so little grows beneath them except plants like bluebells that flower in spring before the beech leaves open.», reached through the option's own match among the sentences about the question's things. What matched: the same action «make» (+3); the same doer «beech trees» (+3). Against it: a different thing acted on (counts against) (-1). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 4 · ★★ · right ✓

«wombat poo's square?? someone's carving it lol» What is true?

1. Wombats make cube-shaped droppings in their own gut — ← Mova's choice · ✓ the right answer · no support
2. Wombats press each dropping flat against square stones — no support
3. Yes, the keepers carve it into cubes for visitors — no support
4. It is not poo but soil from digging — no support

Why: Nothing it remembers matched the question, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 5 · ★★ · wrong ✗

3 wombats and 2 koalas sleep in the nocturnal room. How many ears altogether?

1. 20 — ← Mova's choice · no support
2. 12 — no support
3. 5 — no support
4. 10 — ✓ 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

Test 6 · ★★ · wrong ✗

What would happen if a mother wombat's pouch faced forwards like a kangaroo's?

1. Nothing at all would change — no support
2. The baby would dig its own burrow — ← Mova's choice · score 5
3. The baby would see better and grow faster — score 2
4. Soil would fly into it while she digs — ✓ the right answer · score 5

Why: It took the question to ask what happens next. It chose option 2 with score 5, tied with another option at 5 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 79, line 7: «Wombats are the only animals known to make cube-shaped droppings, shaped by firmer and softer parts of the gut, and they leave them on rocks and logs to mark t…», reached through what followed the sentence the question matched. What matched: the same action «dig» (+5). The right option, 4, scored 5. · the question and its options parsed, with trees and pragmatics

Test 7 · ★★ · wrong ✗

«saw a platypus at the creek, gonna grab it» What is the best answer?

1. Don't: males have a venomous spur that hurts a lot — ✓ the right answer · no support
2. Fine, if you hold it by the bill — no support
3. Fine, it only bites under water — ← Mova's choice · score 2
4. Fine, platypuses are gentle and tame, and they never hurt anyone — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 2, the only option with support. Its support: lesson 104, line 12: «A platypus shuts its eyes, ears and nose under water and finds shrimps and worms by feeling tiny electric signals from their muscles with its bill; males have…», reached through the option's own match among the sentences about the question's things. What matched: the same place «water» (+3); the same doer «platypus» (+1). Against it: a different action (counts against) (-2). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 8 · ★★ · wrong ✗

Why might scientists release healthy zoo devils back into Tasmania?

1. To teach the wild devils to spin — score 6
2. To rebuild wild numbers after the face cancer killed many — ✓ the right answer · score 5
3. Because zoos have run out of food and space for them — ← Mova's choice · score 7
4. To eat all the koalas — score 1

Why: It took the question to ask why something happens (its cause). It chose option 3 with score 7, against 6 for the next best. Its support: lesson 104, line 6: «Out of hundreds of kinds of eucalyptus each koala eats only a few, choosing less poisonous and more watery leaves, so zoos outside Australia grow eucalyptus pl…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «zoos» (+4); the same place «fresh leaves» (+4). Against it: a different action (counts against) (-1). The right option, 2, scored 5. · the question and its options parsed, with trees and pragmatics

Test 9 · ★★ · right ✓

«echidna's just an Aussie hedgehog» What is right?

1. Yes, it is the same animal with a new name — no support
2. No, it is a kind of porcupine bird — no support
3. It looks like one but is an egg-laying mammal — ← Mova's choice · ✓ the right answer · score 3
4. Yes, hedgehogs in Australia grow longer noses — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 3, the only option with support. Its support: lesson 43, line 17: «Other mammals give birth: a hedgehog looks a bit like an echidna but has live babies, and a kangaroo gives birth to a tiny live baby that grows in its pouch.», reached through the option's own match among the sentences about the question's things. What matched: the same action «look» (+2); the same doer «hedgehog» (+1). · the question and its options parsed, with trees and pragmatics

Test 10 · ★★ · wrong ✗

Why is the koala not a bear, even though cartoons call it one?

1. It is too small to be a bear — ← Mova's choice · score 6
2. Bears do not live in trees — no support
3. It cannot growl or roar like a real bear does — score 5
4. It is a marsupial whose baby grows in a pouch — ✓ the right answer · score 6

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 6, tied with another option at 6 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 104, line 4: «Taz of Looney Tunes spins like a tornado and eats everything, and cartoons call the koala a bear; a real Tasmanian devil does not spin, though it screeches and…», reached through the option's own match among the sentences about the question's things. What matched: the same doer «koala» (+3); the same light verb (be, have, do, get, go) (+2); the same thing acted on «bear» (+1). The right option, 4, scored 6. · the question and its options parsed, with trees and pragmatics

Test 11 · ★★ · right ✓

A sugar glider and a flying squirrel both glide. What does this show?

1. Gliding animals are all rodents — no support
2. Different animals can evolve the same trick separately — ← Mova's choice · ✓ the right answer · score 6
3. The sugar glider copied the squirrel — no support
4. They are exactly the same animal living on two continents — no support

Why: It took the question to ask what it is done to. It chose option 2 with score 6, the only option with support. Its support: lesson 104, line 15: «A sugar glider has a skin flap between its front and back legs and glides from tree to tree; it looks like a flying squirrel but is a marsupial that evolved th…», reached through the same lesson line as the sentence the question matched. What matched: the same action «evolve» (+3); it fills the role the question asks for (+3); the same thing acted on «same trick» (+2); the same property (+1). Against it: a different doer (counts against) (-3). · the question and its options parsed, with trees and pragmatics

Test 12 · ★★ · wrong ✗

4 bilbies and 1 sugar glider in the nocturnal room. How many tails?

1. 4 — ← Mova's choice · no support
2. 5 — ✓ the right answer · no support
3. 10 — no support
4. 1 — 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

Exam question 1 · formal language · wrong ✗

Which of the following statements most accurately characterises the prolonged rest of the koala?

1. It results from intoxication by the eucalyptus leaf, which acts upon the koala as a strong drug — no support
2. It is undertaken by day because the koala hunts by night — ← Mova's choice · score 5
3. It conserves the scant energy furnished by eucalyptus leaves, which are poisonous and difficult to digest — ✓ the right answer · no support
4. It is observed only during the winter months — no support

Why: It took the question to ask who or what does it. It chose option 2 with score 5, the only option with support. Its support: lesson 55, line 1: «Every animal needs rest, but they rest in amazing ways: dolphins sleep with half their brain, giraffes nap standing up, bats sleep upside down, and koalas slee…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+3); the same doer «koalas» (+2). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · right ✓

Identify the means by which the platypus detects its prey beneath the water.

1. By sight, its eyes being fully open — no support
2. By hearing, its ears remaining open — no support
3. By perceiving minute electrical signals with its bill, its eyes, ears and nostrils being closed — ← Mova's choice · ✓ the right answer · score 8
4. By the sense of smell alone — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 8, the only option with support. Its support: lesson 43, line 7: «A platypus dives with its eyes, ears and nostrils closed and finds shrimps, worms and insect larvae with tens of thousands of sensors in its soft bill that fee…», reached through the same lesson line as the sentence the question matched. What matched: the same action «bill» (+4); the same doer «echidna» (+4). · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · wrong ✗

Select the response consistent with the established facts concerning the droppings of the wombat.

1. They are spherical in form and are buried deep within the burrow by the mother — ← Mova's choice · no support
2. They are spiral in form and are consumed by the young — no support
3. They are cubic in form, being shaped within the gut, and serve to mark its territory — ✓ the right answer · no support
4. They are carved into shape by the animal's claws — 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

Exam question 4 · formal language · wrong ✗

State the principal cause of the decline of the Tasmanian devil in the wild.

1. Predation by the koala — ← Mova's choice · no support
2. A shortage of fresh water in Tasmania — no support
3. The destruction of all the eucalyptus forest in Tasmania — no support
4. A transmissible cancer passed on by bites to the face — ✓ 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

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/biology/104-koalas-wombats-tasmanian-devils-and-the-platypus/