The aviary: the walk-through tropical house

Tests: 4 of 11 right · Exam: 2 of 4 right · Kind: plain · Understood: 11 of 15 · Run: 2026-10-18, commit f3c23ea72

Lesson 93 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 · wrong ✗

4 hummingbirds at the feeder, 2 more zip in. how many wings flappin

1. 8 — ← Mova's choice · no support
2. 6 — no support
3. 24 — no support
4. 12 — ✓ 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 2 · wrong ✗

A toucan is perched on a branch. How many of its toes point backwards?

1. One on each foot — no support
2. Three on each foot — ← Mova's choice · score 5
3. None at all — no support
4. Two on each foot — ✓ the right answer · no support

Why: It took the question to ask what it is done to. It chose option 2 with score 5, the only option with support. Its support: lesson 93, line 18: «Parrots and toucans have two toes pointing forward and two pointing back, while most perching birds have three forward and one back.», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+4); the same thing acted on «three» (+3). Against it: a different doer (counts against) (-2). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 3 · wrong ✗

In The Lion King, Zazu the hornbill gives the king advice. Which part is true to real life?

1. Hornbills live in the Arctic — ← Mova's choice · score 5
2. Real hornbills can talk like people — score 5
3. Red-billed hornbills live on the African savanna — ✓ the right answer · score 5
4. Hornbills are kept by lions as helpers — no support

Why: It took the question to ask who or what does it. It chose option 1 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 93, line 5: «In The Lion King, Zazu is a red-billed hornbill; real hornbills do not talk or serve kings, but the beak and the African savanna are true to life.», 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 «real hornbills» (+2). The right option, 3, scored 5. · the question and its options parsed, with trees and pragmatics

Test 4 · wrong ✗

In a Tarzan film, a kookaburra laughs in an African jungle. What is wrong?

1. Kookaburras live only in the Arctic — no support
2. Kookaburras live in Australia, not Africa — ✓ the right answer · no support
3. Kookaburras never make any sound — no support
4. Nothing, kookaburras live in every jungle — ← Mova's choice · score 2

Why: It took the question to ask which statement is true. It chose option 4 with score 2, the only option with support. Its support: lesson 18, line 9: «Lions do not live in jungles but in African savanna, grassland and open woodland, and in the Gir Forest, a dry forest in India; king of the beasts is the bette…», reached through the option's own match among the sentences about the question's things. What matched: the same place «jungles» (+3); the same action «live» (+2). Against it: a different doer (counts against) (-1); one says «not», the other does not (counts against) (-2). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 5 · right ✓

The ibis food runs out and the zoo feeds plain fish. What happens over time?

1. The ibis slowly turns bright blue — no support
2. The ibis loses all its feathers — no support
3. Nothing changes in its colour at all — no support
4. New feathers grow in paler — ← Mova's choice · ✓ the right answer · score 6

Why: It took the question to ask which statement is true. It chose option 4 with score 6, the only option with support. Its support: lesson 93, line 7: «Scarlet ibises get their red colour from pigments in the crabs and shrimps they eat, so zoos add the pigment to their food to keep them red; without it, new fe…», reached through the option's own match among the sentences about the question's things. What matched: the same place «paler» (+3); the same action «grow» (+2); the same doer «new feathers» (+1). · the question and its options parsed, with trees and pragmatics

Test 6 · wrong ✗

What would happen to a hummingbird that missed its meals for a whole day?

1. Nothing, as hummingbirds can go for weeks without any food — ← Mova's choice · no support
2. It could run out of energy, because hovering burns so much — ✓ the right answer · no support
3. It would start eating seeds — no support
4. It would grow bigger — 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 7 · right ✓

kid says the toucan's beak must be super heavy, it's massive lol. right?

1. Yes, toucans can hardly lift their heads — no support
2. No, it is light and full of air spaces — ← Mova's choice · ✓ the right answer · score 7
3. No, it is made of soft rubber — score 4
4. Yes, so toucans walk instead of fly — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 7, against 4 for the next best. Its support: lesson 93, line 3: «Colours and beaks have reasons: a scarlet ibis is red because of the red pigments in its crabs and shrimps, and a toucan's giant beak is light and full of air…», reached through the option's own match among the sentences about the question's things. What matched: the same property (+3); the same light verb (be, have, do, get, go) (+3); the same doer «giant beak» (+1). · the question and its options parsed, with trees and pragmatics

Test 8 · right ✓

The keeper sees a bird has lost weight but it looks fine. What should she think?

1. It may be ill and hiding it — ← Mova's choice · ✓ the right answer · score 8
2. It is just being lazy — no support
3. It must be getting ready to fly away — score 2
4. It is perfectly healthy — no support

Why: It took the question to ask what it is done to. It chose option 1 with score 8, against 2 for the next best. Its support: lesson 93, line 15: «Keepers weigh birds often, because sick birds hide illness, since in the wild a weak-looking bird is more likely to be caught, and losing weight is often the f…», reached through the same lesson line as the sentence the question matched. What matched: the same action «hide» (+4); the same doer «sick birds» (+4). · the question and its options parsed, with trees and pragmatics

Test 9 · wrong ✗

Why would a bird in the wild hide that it is ill?

1. Ill birds are always very colourful — score 3
2. It does not want the keeper or its flock to worry about it — ← Mova's choice · score 8
3. Other birds would steal its nest — score 6
4. Weak-looking birds are more likely to be caught — ✓ the right answer · score 7

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 8, against 7 for the next best. Its support: lesson 93, line 15: «Keepers weigh birds often, because sick birds hide illness, since in the wild a weak-looking bird is more likely to be caught, and losing weight is often the f…», reached through the cause of the sentence the question matched. What matched: the same circumstance (+4); a different action (counts against) (+3); a different doer (counts against) (+1). The right option, 4, scored 7. · the question and its options parsed, with trees and pragmatics

Test 10 · wrong ✗

A pair of birds take turns sitting on their eggs and fetching food. Why does this help?

1. The parents get bored sitting — no support
2. It stops the eggs hatching too early — ← Mova's choice · score 1
3. The chicks survive better with two parents — ✓ the right answer · no support
4. The eggs must be moved to a new nest every single hour — score 1

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 1, tied with another option at 1 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 88, line 16: «In crocodiles, alligators and many turtles, the warmth of the nest decides whether the eggs hatch as males or females; in sea turtles, warmer sand gives more f…», reached through the option's own match among the sentences about the question's things. What matched: the same action «hatch» (+1). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 11 · right ✓

Why do many birds nest in spring?

1. The days are shorter then — no support
2. Birds only lay eggs at Easter — no support
3. Insects to feed the chicks are most plentiful then — ← Mova's choice · ✓ the right answer · score 5
4. The eggs would overheat in summer — no support

Why: It took the question to ask why something happens (its cause). It chose option 3 with score 5, the only option with support. Its support: lesson 93, line 13: «Many birds that eat seeds feed their chicks insects for protein, and a pair of blue tits can bring around 10 000 caterpillars to one brood; most birds nest in…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «insects» (+3); the same light verb (be, have, do, get, go) (+2). · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · right ✓

Identify the principal reason for which the walk-through aviary is furnished with a double set of doors.

1. To prevent the escape of birds upon the entry of a visitor — ← Mova's choice · ✓ the right answer · no support
2. To expedite the departure of visitors — no support
3. To admit two parties of visitors simultaneously through one entrance — no support
4. To exclude rainfall from the enclosure — 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 2 · formal language · wrong ✗

Which of the following statements most accurately characterises the scarlet ibis?

1. Its red plumage derives from pigments in the crustaceans it consumes — ✓ the right answer · no support
2. Its plumage is coloured by the mud of its habitat — no support
3. Its red plumage is produced by exposure to sunlight — no support
4. It is red solely during the breeding season and white for the remainder of the year — ← Mova's choice · score 5

Why: It took the question to ask who or what does it. It chose option 4 with score 5, the only option with support. Its support: lesson 93, line 3: «Colours and beaks have reasons: a scarlet ibis is red because of the red pigments in its crabs and shrimps, and a toucan's giant beak is light and full of air…», reached through the option's own match among the sentences about the question's things. What matched: it fills the role the question asks for (+2); the same doer «scarlet ibis» (+1); the same property (+1); the same light verb (be, have, do, get, go) (+1). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · right ✓

Ascertain the aggregate number of wings possessed by seven hummingbirds.

1. Fourteen — ← Mova's choice · ✓ the right answer · no support
2. Twenty-one — no support
3. Seven — no support
4. Twenty-eight — 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 ✗

It is given that a captive bird has lost weight while appearing healthy. Select the response consistent with the established facts.

1. Loss of weight is frequently the earliest sign of concealed illness — ✓ the right answer · no support
2. Loss of weight is without significance in birds — no support
3. Birds lose weight only in the weeks prior to their seasonal migration — ← Mova's choice · score 7
4. Loss of weight demonstrates excellent health — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 7, the only option with support. Its support: lesson 93, line 15: «Keepers weigh birds often, because sick birds hide illness, since in the wild a weak-looking bird is more likely to be caught, and losing weight is often the f…», reached through the remembered sentence the question matched. What matched: the same thing acted on «weight» (+5); the same action «lose» (+2). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

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