Bears

Tests: 7 of 11 right · Exam: 1 of 4 right · Kind: plain · Understood: 8 of 15 · Run: 2026-10-18, commit f3c23ea72

Lesson 23 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 ✗

lol my koala teddy is a bear right?? says so on the label

1. Yes, it is a small kind of panda — ← Mova's choice · no support
2. No, a koala is a marsupial, not a bear — ✓ the right answer · no support
3. No, koalas are a kind of monkey — no support
4. Yes, koalas are the smallest bears in the whole world — 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 · right ✓

In the cartoon Yogi Bear steals picnic baskets and everyone laughs. What happens to real bears that learn this?

1. They forget it by the next week — no support
2. They become tame pets for the campers — no support
3. They often become dangerous and may have to be moved or put down — ← Mova's choice · ✓ the right answer · score 7
4. Nothing, it is good for bears — 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 23, line 5: «Winnie the Pooh and Yogi Bear are friendly and steal honey and picnic baskets; real bears do raid bins and love honey, but a bear used to human food becomes da…», reached through the same lesson line as the sentence the question matched. What matched: the same action «become» (+5); the same property (+2). · the question and its options parsed, with trees and pragmatics

Test 3 · wrong ✗

Count them: a mother bear and two cubs come out of a den. How many legs is that?

1. 6 — ← Mova's choice · no support
2. 16 — no support
3. 8 — 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 4 · right ✓

Why might a polar bear's hollow see-through hairs be useful in the Arctic?

1. They let the bear see right through its own fur — no support
2. They look white on snow and trap warmth — ← Mova's choice · ✓ the right answer · score 4
3. They glow in the dark to help it find seals — no support
4. They make the bear float on water like a balloon — no support

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 4, the only option with support. Its support: lesson 23, line 8: «A polar bear's hairs are see-through and hollow, look white and trap warmth, and its skin underneath is black; in warm zoos tiny green algae sometimes grow ins…», reached through a sentence linked to the one the question matched. What matched: the same action «look» (+3); the same property (+1). · the question and its options parsed, with trees and pragmatics

Test 5 · right ✓

If a zoo polar bear's fur turned green, what is the likely reason?

1. Its skin changed colour from the terrible cold — no support
2. It ate too much spinach — no support
3. Tiny algae grew inside its hollow hairs — ← Mova's choice · ✓ the right answer · score 10
4. Someone painted it as a joke — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 10, the only option with support. Its support: lesson 23, line 8: «A polar bear's hairs are see-through and hollow, look white and trap warmth, and its skin underneath is black; in warm zoos tiny green algae sometimes grow ins…», reached through the same lesson line as the sentence the question matched. What matched: the same action «grow» (+5); the same doer «tiny green algae» (+5). · the question and its options parsed, with trees and pragmatics

Test 6 · right ✓

What would happen to a polar bear if the sea ice melted early each year?

1. It would simply switch to eating bamboo instead — no support
2. It would catch more seals than ever before — score 2
3. Nothing, polar bears hunt only on land — no support
4. It would have less time to hunt seals — ← Mova's choice · ✓ the right answer · score 3

Why: It took the question to ask which statement is true. It chose option 4 with score 3, against 2 for the next best. Its support: lesson 6, line 4: «The polar bear is the king of the sea ice: it hunts seals from the ice edge, so as the world warms and the summer ice shrinks, it has less time to hunt.», reached through the option's own match among the sentences about the question's things. What matched: the same doer «ice» (+1); the same property (+1); the same light verb (be, have, do, get, go) (+1). · the question and its options parsed, with trees and pragmatics

Test 7 · right ✓

My brother says bears hibernate cos they're lazy. what's the real reason?

1. Bears hate the feel of cold snow on their paws in winter — score -1
2. Food is scarce in winter, so sleeping saves energy — ← Mova's choice · ✓ the right answer · score 9
3. Their claws fall out every winter — no support
4. Bears are bored in winter — score 2

Why: It took the question to ask which statement is true. It chose option 2 with score 9, against 2 for the next best. Its support: lesson 23, line 11: «In winter, when food is scarce, many bears sleep in a den for months to save energy, living on stored fat without eating, drinking or going to the toilet, whil…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «food» (+5); the same property (+2); the same light verb (be, have, do, get, go) (+2). · the question and its options parsed, with trees and pragmatics

Test 8 · right ✓

Which is true about a giant panda's body?

1. It has the stomach of a cow, with four parts, to digest the grass — no support
2. It needs only a few leaves a day — no support
3. It is built like a meat-eater but eats almost only bamboo — ← Mova's choice · ✓ the right answer · score 5
4. It is a kind of raccoon, not a bear at all — 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 17, line 7: «DNA is the set of instructions for building a body that every cell carries; about 98 to 99 percent of the DNA that can be compared is the same in humans and ch…», reached through the remembered sentence the question matched. What matched: the same thing acted on «body» (+4); the same action «build» (+1). · the question and its options parsed, with trees and pragmatics

Test 9 · wrong ✗

shut up and stand still, there's a bear with cubs over there!!

1. Throw your sandwich to make friends — ← Mova's choice · no support
2. Back away slowly and calmly, never go between a mother and cubs — ✓ the right answer · no support
3. Run as fast as you can, you'll beat it — no support
4. Go closer to see the cubs — 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 ✓

Why are pandas busy eating for up to 14 hours a day?

1. They eat slowly because they have no teeth — score 5
2. Bamboo gives them very little energy, so they need loads — ← Mova's choice · ✓ the right answer · score 6
3. They only eat in the dark, when it is cooler and they feel safer — score 5
4. They are storing it in their cheeks — no support

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 6, against 5 for the next best. 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 same lesson line as the sentence the question matched. What matched: the same action «give» (+3); the same doer «bamboo» (+2); the same thing acted on «little energy» (+1). · the question and its options parsed, with trees and pragmatics

Test 11 · wrong ✗

Why did a 1902 cartoon lead to the teddy bear?

1. A bear called Teddy saved the President — ← Mova's choice · no support
2. Roosevelt refused to shoot a tied-up bear, and a toy maker made a bear named after him — ✓ the right answer · no support
3. Roosevelt invented the toy himself — no support
4. Roosevelt kept a real bear called Teddy in the White House — 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

Exam question 1 · formal language · wrong ✗

Ascertain the number of extant species of the family of bears.

1. Three — ← Mova's choice · no support
2. Twenty — no support
3. Eight — ✓ the right answer · no support
4. One — 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 pelage and integument of the polar bear?

1. Its hairs are solid white, and its skin is white — ← Mova's choice · no support
2. It is devoid of hair, and its skin is white — no support
3. Its hairs are translucent and hollow, and its skin is black — ✓ the right answer · no support
4. Its hairs are grey, and its skin is pink — 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 3 · formal language · right ✓

Identify the principal reason for which visitors to bear habitats are enjoined never to provide food to bears.

1. Bears habituated to human food frequently become dangerous — ← Mova's choice · ✓ the right answer · score 12
2. Bears are unable to digest any food — no support
3. Human food is too costly for the park authorities to provide in quantity — no support
4. Bears so fed cease to hibernate entirely — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 12, the only option with support. Its support: lesson 23, line 16: «Bears that get used to human food often become dangerous, so parks use bear-proof bins and tell visitors never to feed bears.», reached through the same lesson line as the sentence the question matched. What matched: the same action «become» (+5); the same doer «bears» (+5); the same property (+2). · the question and its options parsed, with trees and pragmatics

Exam question 4 · formal language · wrong ✗

Select the response consistent with the established facts concerning the dietary habit of the giant panda.

1. It consumes seals almost exclusively — ← Mova's choice · no support
2. It consumes honey almost exclusively — no support
3. It consumes bamboo almost exclusively — ✓ the right answer · no support
4. It consumes fish almost exclusively — 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

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/biology/23-bears/