Conservation: how people help animals come back
Tests: 8 of 11 right · Exam: 1 of 4 right · Kind: ★ · Understood: 9 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 78 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 ✗
In a cartoon a superhero saves the pandas in one afternoon. What is real conservation like?
- 1. One person moving all of the pandas to a new island far away from people — no support
- 2. A single law that makes pandas multiply — no support
- 3. Pandas saving themselves by learning to eat meat — ← Mova's choice · score 2
- 4. Many people working for years to protect and join up their homes — ✓ the right answer · no support
Why: It took the question to ask what it is done to. It chose option 3 with score 2, the only option with support. Its support: lesson 23, line 13: «Giant pandas eat almost only bamboo, up to about 12 to 38 kilograms a day, and grip it with an extra wrist bone that works like a thumb; their teeth and tummy…», reached through the option's own match among the sentences about the question's things. What matched: the same action «eat» (+2). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 2 · ★ · right ✓
«poison in tiny water bugs can't hurt a massive eagle» What is right?
- 1. Only tiny animals can be poisoned — no support
- 2. It builds up in the fish that eat the bugs, then in the eagles — ← Mova's choice · ✓ the right answer · score 7
- 3. Eagles only eat clean food from the sky — score 3
- 4. It vanishes before it reaches anything as big as an eagle or a bear — no support
Why: It took the question to ask which statement is true. It chose option 2 with score 7, against 3 for the next best. Its support: lesson 78, line 5: «Bald eagles fell to about 400 to 500 nesting pairs in the lower 48 US states by the 1960s, partly because the pesticide DDT, building up from tiny water bugs i…», reached through the same lesson line as the sentence the question matched. What matched: the same action «build up» (+4); the same circumstance (+3). · the question and its options parsed, with trees and pragmatics
Test 3 · ★ · wrong ✗
«why'd they bring wolves back, wolves just kill stuff» How can a predator help plants?
- 1. Wolves eat weeds that choke the trees — no support
- 2. Elk changed where they grazed, so some riverside trees grew again — ✓ the right answer · no support
- 3. Wolves scare away the rain — ← Mova's choice · score -1
- 4. Wolves dig holes with their paws and bury seeds, which grow into trees — no support
Why: It took the question to ask why something happens (its cause). It chose option 3 with score -1, the only option with support. Its support: lesson 24, line 7: «Wolves howl to tell the pack where they are and warn other packs away, and a howl can carry several kilometres; they do not howl at the moon.», reached through the option's own match among the sentences about the question's things. What matched: the same doer «wolves» (+1); the same property (+1). Against it: a different thing acted on (counts against) (-1); 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
Test 4 · ★ · wrong ✗
«a condor never touched a bullet, so how'd it get poisoned» What is right?
- 1. Condors cannot be poisoned at all — ← Mova's choice · no support
- 2. It flew through the gun smoke — no support
- 3. It drank from a river near a shooting range — no support
- 4. It ate carcasses with lead bullets inside — ✓ 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 5 · ★ · right ✓
What would happen if a zoo bred only brothers and sisters for many generations?
- 1. The animals would be less healthy and less able to survive disease — ← Mova's choice · ✓ the right answer · score 6
- 2. They would grow stronger and healthier with every new generation born — score 4
- 3. Nothing would change at all — no support
- 4. They would turn into a new species — score 4
Why: It took the question to ask what happens next. It chose option 1 with score 6, against 4 for the next best. Its support: lesson 78, line 13: «Good zoos keep family records called studbooks so that rare animals are not too closely related, because a healthy mix of genes helps them survive disease and…», reached through the same lesson line as the sentence the question matched. What matched: the same action «survive» (+2); the same doer «animals» (+2); the same thing acted on «disease» (+2). · the question and its options parsed, with trees and pragmatics
Test 6 · ★ · right ✓
«why'd they use kites from Spain, not English ones» What is the best reason?
- 1. Almost none were left in England, and Spanish ones are the same species — ← Mova's choice · ✓ the right answer · no support
- 2. Spanish kites are a bigger and better species that hunts more rabbits — no support
- 3. Spain wanted to get rid of its kites — no support
- 4. English kites cannot fly over motorways — 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 ✓
«putting a hole in my fence, crap, the dog'll get out» What is right?
- 1. Hedgehogs need a hole the size of a door — no support
- 2. A hole about 13 cm square lets hedgehogs through but not most pets — ← Mova's choice · ✓ the right answer · score 8
- 3. Hedgehogs climb fences easily, so you don't need a hole at all, mate — no support
- 4. Dogs never fit through any hole — no support
Why: It took the question to ask which statement is true. It chose option 2 with score 8, the only option with support. Its support: lesson 69, line 6: «The pupil is a hole that lets light into the eye; the coloured iris around it is a muscle that makes the pupil smaller in bright light and bigger in the dark.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «hole» (+5); the same action «let» (+4). Against it: a different thing acted on (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Test 8 · ★ · right ✓
Why do rangers remove rats and stoats from kakapo islands?
- 1. Rats steal kakapo food from trees — score -1
- 2. Stoats sing too loudly at night and keep the kakapos awake until dawn — no support
- 3. Kakapos nest on the ground, so these predators eat eggs and chicks — ← Mova's choice · ✓ the right answer · score 3
- 4. Rats and stoats are endangered and need moving — score 1
Why: It took the question to ask why something happens (its cause). It chose option 3 with score 3, against 1 for the next best. Its support: lesson 78, line 11: «The kakapo is a flightless, nocturnal New Zealand parrot, the heaviest in the world; it nests on the ground, where rats and stoats eat its eggs and chicks, and…», reached through the option's own match among the sentences about the question's things. What matched: the same action «eat» (+2); the same thing acted on «eggs» (+1). · the question and its options parsed, with trees and pragmatics
Test 9 · ★ · right ✓
«the oryx is a unicorn, mate» What is right?
- 1. Some think the unicorn legend came from an oryx seen side-on — ← Mova's choice · ✓ the right answer · no support
- 2. Yes, oryx are magic and glow in the dark — no support
- 3. Yes, an oryx has just the one horn in the middle of its head — no support
- 4. No, the oryx has no horns at all — 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 10 · ★ · right ✓
«beaver dams flood stuff, they're pests» What else do the dams do?
- 1. Make rivers dry up completely — score -1
- 2. Nothing useful at all — no support
- 3. Slow rivers, hold water in droughts and reduce flooding further down — ← Mova's choice · ✓ the right answer · score 12
- 4. Poison the frogs and insects — no support
Why: It took the question to ask what it is done to. It chose option 3 with score 12, against -1 for the next best. Its support: lesson 78, line 9: «A wild beaver family on the River Otter in Devon was allowed to stay in 2020; beaver dams slow rivers, hold water in droughts, reduce flooding downstream and m…», reached through the remembered sentence the question matched. What matched: the same place «droughts» (+6); the same action «hold» (+5); it fills the role the question asks for (+3); the same thing acted on «water» (+1). Against it: a different doer (counts against) (-3). · the question and its options parsed, with trees and pragmatics
Test 11 · ★ · right ✓
Why do whales take a long time to recover their numbers?
- 1. Whales are mostly male, with few females — score 2
- 2. Whales need to learn new songs first — score 0
- 3. Whales only breed once in their life — score -1
- 4. They live long and have few calves — ← Mova's choice · ✓ the right answer · score 6
Why: It took the question to ask why something happens (its cause). It chose option 4 with score 6, against 2 for the next best. Its support: lesson 26, line 16: «Orcas, or killer whales, are the biggest kind of dolphin and live in family groups led by older females, who can live to around 80 or 90 and remember where to…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «orcas» (+4); the same action «live» (+2). · the question and its options parsed, with trees and pragmatics
Exam question 1 · formal language · wrong ✗
Identify the principal cause of the decline of the bald eagle in the United States during the mid-twentieth century.
- 1. A succession of exceptionally severe winters — ← Mova's choice · no support
- 2. The introduction of rats to their nesting sites — no support
- 3. The accumulation of DDT, which caused the thinning of eggshells — ✓ the right answer · no support
- 4. Competition for food with the California condor over the western mountains — 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 · right ✓
Select the response consistent with the established facts concerning the reintroduction of wolves to Yellowstone National Park.
- 1. Wolves had never been absent from the park — no support
- 2. Three hundred wolves were bred in zoos and released in 1872 — no support
- 3. Thirty-one wolves were translocated from Canada in 1995 and 1996 — ← Mova's choice · ✓ the right answer · score 5
- 4. Wolves were introduced from Spain and Sweden in 1989 — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 5, the only option with support. Its support: lesson 46, line 13: «Wolves were brought back to Yellowstone in 1995; elk numbers fell and in some places young willows and aspens grew back, though scientists still argue how big…», reached through the remembered sentence the question matched. What matched: the same thing acted on «wolves» (+5); the same circumstance (+2). Against it: a different action (counts against) (-2). · the question and its options parsed, with trees and pragmatics
Exam question 3 · formal language · wrong ✗
Which of the following statements most accurately characterises the purpose of a zoo studbook?
- 1. It records the opening hours of each enclosure — ← Mova's choice · no support
- 2. It sets out regulations for the conduct of visitors — no support
- 3. It records lineage so that rare animals are not paired with close relatives — ✓ the right answer · no support
- 4. It records the dietary preferences of each animal — 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 ✗
Ascertain the number of California condors known to remain in the year 1987.
- 1. Fifty-one thousand — ← Mova's choice · no support
- 2. Twenty-seven — ✓ the right answer · no support
- 3. Two hundred and seventy — no support
- 4. Five hundred thousand — 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/78-conservation-animals-come-back/