---
title: Zootopia: real sloths, shrews, predators and prey — how Mova does on the tests · Biology
description: Lesson 142 of the biology course of Mova's primary school: 9 of 11 tests right, exam 1 of 4, every question with the options, the student's choice, the right answer and why it chose.
---

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# Zootopia: real sloths, shrews, predators and prey

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**Tests:** 9 of 11 right · **Exam:** 1 of 4 right · **Kind:** ★ · **Understood:** 9 of 15 · **Run:** 2026-10-18, commit `f3c23ea72`

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Lesson 142 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/142-zootopia-real-sloths-shrews-predators-and-prey/).

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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/142-zootopia-real-sloths-shrews-predators-and-prey/).

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### Test 1 · ★ · wrong ✗ {#t1}

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«3 sloths hanging in a tree, how many legs hooked on the branch if they all use all 4»

- **1.** 7 — **← Mova's choice** · no support
- **2.** 16 — no support
- **3.** 12 — **✓ the right answer** · no support
- **4.** 3 — no support

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**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/142-zootopia-real-sloths-shrews-predators-and-prey/t1/)

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### Test 2 · ★ · right ✓ {#t2}

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«Flash is slow coz sloths are just lazy, simple» What is right?

- **1.** Sloths save energy because their leafy food gives very little — **← Mova's choice** · **✓ the right answer** · score 8
- **2.** No, sloths are slow because they are old — score 6
- **3.** Yes, sloths could easily move fast if they wanted, but they choose not to bother — score 8
- **4.** Yes, sloths sleep because they are bored — no support

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**Why:** It took the question to ask which statement is true. It chose option 1 with score 8, tied with another option at 8 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 108, line 1: «A two-toed sloth hangs upside down from a branch and does not seem to move for an hour; it is not lazy but thrifty, because its leaves give so little energy th…», reached through the same lesson line as the sentence the question matched. What matched: the same action «save» (+5); the same doer «sloth» (+3). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/142-zootopia-real-sloths-shrews-predators-and-prey/t2/)

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### Test 3 · ★ · right ✓ {#t3}

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In a cartoon, a sloth falls in a river and sinks like a stone. What is real?

- **1.** Sloths drown in a few seconds — no support
- **2.** Sloths cannot float at all — score -1
- **3.** Sloths sink straight to the bottom because their long fur soaks up so much water — no support
- **4.** Sloths swim well and can hold their breath for a long time — **← Mova's choice** · **✓ the right answer** · score 3

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**Why:** It took the question to ask which statement is true. It chose option 4 with score 3, against -1 for the next best. Its support: lesson 142, line 7: «Sloths are good swimmers and swim faster than they move on land; a sloth can hold its breath for up to about 40 minutes.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «breath» (+2); the same action «hold» (+1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/142-zootopia-real-sloths-shrews-predators-and-prey/t3/)

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### Test 4 · ★ · right ✓ {#t4}

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A sloth stayed hidden in the treetops for months, then got caught on the ground. Why there?

- **1.** It came down to hunt mice — score 4
- **2.** It climbs down about once a week for the toilet, and that is when it is in danger — **← Mova's choice** · **✓ the right answer** · score 5
- **3.** It came down to look for a new tree to sleep in, as sloths change trees every night — score 4
- **4.** It fell because sloths cannot grip well — no support

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**Why:** It took the question to ask which statement is true. It chose option 2 with score 5, against 4 for the next best. Its support: lesson 142, line 9: «A sloth climbs down about once a week to go to the toilet on the ground; scientists are not sure why, and it is the most dangerous time of its week.», reached through a sentence linked to the one the question matched. What matched: the same action «climb down» (+2); the same doer «sloth» (+2); the same property (+1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/142-zootopia-real-sloths-shrews-predators-and-prey/t4/)

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### Test 5 · ★ · right ✓ {#t5}

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What would happen if a shrew went a whole day without eating?

- **1.** It would hibernate till spring — no support
- **2.** It would grow bigger and slower, saving up fat from the food it had already eaten — no support
- **3.** It would be fine for a few weeks — no support
- **4.** It could die, because its tiny body burns food so fast — **← Mova's choice** · **✓ the right answer** · score 7

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**Why:** It took the question to ask what happens next. It chose option 4 with score 7, the only option with support. Its support: lesson 142, line 10: «Shrews are tiny fierce hunters of insects and worms; their small bodies lose heat quickly, so some eat their own weight in food every day, and a shrew can die…», reached through the same lesson line as the sentence the question matched. What matched: the same action «die» (+4); the same doer «shrew» (+3). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/142-zootopia-real-sloths-shrews-predators-and-prey/t5/)

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### Test 6 · ★ · right ✓ {#t6}

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«Mr Big's a crime boss coz shrews are scary tough, lol» What is true about real shrews?

- **1.** They are gentle little animals that eat only seeds and never hunt any other creature — score 5
- **2.** They are fierce little hunters of insects and worms — **← Mova's choice** · **✓ the right answer** · score 7
- **3.** They hunt polar bears in the Arctic — score 1
- **4.** They are scared of every insect — score 4

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**Why:** It took the question to ask which statement is true. It chose option 2 with score 7, against 5 for the next best. Its support: lesson 142, line 10: «Shrews are tiny fierce hunters of insects and worms; their small bodies lose heat quickly, so some eat their own weight in food every day, and a shrew can die…», reached through the remembered sentence the question matched. What matched: the same thing acted on «tiny fierce hunters» (+5); the same circumstance (+2); the same light verb (be, have, do, get, go) (+1). Against it: the same doer «shrews» (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/142-zootopia-real-sloths-shrews-predators-and-prey/t6/)

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### Test 7 · ★ · right ✓ {#t7}

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A mouse and an elephant walk down the same street in the film. Roughly how many times heavier is a big elephant than the smallest shrew?

- **1.** About twice as heavy — no support
- **2.** About a hundred times — no support
- **3.** About ten times heavier — no support
- **4.** Millions of times — **← Mova's choice** · **✓ the right answer** · score 3

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**Why:** It took the question to ask what it is done to. It chose option 4 with score 3, the only option with support. Its support: lesson 142, line 11: «The smallest shrews weigh about as much as a paperclip or two, while an elephant weighs several tonnes, millions of times more.», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+2); the same thing acted on «several tonnes» (+1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/142-zootopia-real-sloths-shrews-predators-and-prey/t7/)

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### Test 8 · ★ · right ✓ {#t8}

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«shut up, a lion's not scared of anything so why's it got eyes in front?» Why does a hunter have front eyes?

- **1.** To look fierce and scary to other lions — no support
- **2.** To keep the blowing sand out of its eyes — score 2
- **3.** To see behind itself while running — score 4
- **4.** To judge distance when it pounces — **← Mova's choice** · **✓ the right answer** · score 7

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**Why:** It took the question to ask why something happens (its cause). It chose option 4 with score 7, against 4 for the next best. Its support: lesson 142, line 12: «Many predators, such as cats and owls, have eyes in front to judge distance; many prey, such as rabbits and deer, have eyes on the sides to see all around.», reached through the cause of the sentence the question matched. What matched: the same action «judge» (+5); the same thing acted on «distance» (+3). 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/142-zootopia-real-sloths-shrews-predators-and-prey/t8/)

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### Test 9 · ★ · right ✓ {#t9}

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A wildlife film shows one lion pride and a huge herd of zebras. Why is that the usual picture?

- **1.** Each predator needs many prey animals to survive — **← Mova's choice** · **✓ the right answer** · no support
- **2.** Lions only ever live in very small groups by chance, not because of how much food there is — no support
- **3.** Zebras eat lions in bad years — no support
- **4.** Lions have scared off most other lions — no support

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**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/142-zootopia-real-sloths-shrews-predators-and-prey/t9/)

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### Test 10 · ★ · right ✓ {#t10}

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«predators go savage when they're angry, like in Zootopia» What is right?

- **1.** No, real predators never hunt at all — score 6
- **2.** Yes, real lions attack other animals mainly when they are cross or in a bad mood — no support
- **3.** Real predators hunt to eat, not out of anger — **← Mova's choice** · **✓ the right answer** · score 10
- **4.** Yes, wolves hunt to punish other animals — no support

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**Why:** It took the question to ask which statement is true. It chose option 3 with score 10, against 6 for the next best. Its support: lesson 142, line 4: «Think of a nature film at a waterhole: hundreds of zebras and only a few lions, all drinking while the lions are full. Real predators and prey do share places,…», reached through the same lesson line as the sentence the question matched. What matched: the same action «hunt» (+5); the same doer «predators» (+3); its «because» matches the remembered cause (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/142-zootopia-real-sloths-shrews-predators-and-prey/t10/)

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### Test 11 · ★ · wrong ✗ {#t11}

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«a sloth hanging in a rainforest, 6 moths living in its fur, how many animals is that altogether»

- **1.** 6 — **← Mova's choice** · no support
- **2.** 1 — no support
- **3.** 12 — no support
- **4.** 7 — **✓ the right answer** · no support

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**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/142-zootopia-real-sloths-shrews-predators-and-prey/t11/)

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### Exam question 1 · formal language · wrong ✗ {#e1}

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Identify the principal reason for the exceptionally slow movement of the sloth.

- **1.** Its limbs are incapable of rapid motion owing to injury — **← Mova's choice** · no support
- **2.** Its diet of foliage furnishes very little energy, which it must therefore conserve — **✓ the right answer** · no support
- **3.** It is constitutionally disinclined to exertion — no support
- **4.** It is perpetually drowsy from the consumption of fermented fruit, which it eats in large amounts — no support

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**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/142-zootopia-real-sloths-shrews-predators-and-prey/e1/)

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### Exam question 2 · formal language · right ✓ {#e2}

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Select the response consistent with the established facts concerning the dietary requirements of the shrew.

- **1.** Owing to rapid loss of heat, certain shrews consume their own body weight in food daily — **← Mova's choice** · **✓ the right answer** · no support
- **2.** The shrew requires nourishment no more than once a week, having stored fat beneath its skin for the purpose — no support
- **3.** The shrew obtains its food by preying upon large mammals — no support
- **4.** The shrew subsists entirely upon seeds and grain — no support

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**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/142-zootopia-real-sloths-shrews-predators-and-prey/e2/)

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### Exam question 3 · formal language · wrong ✗ {#e3}

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Which of the following statements most accurately characterises the position of the eyes in predator and prey?

- **1.** Prey commonly possess forward-facing eyes for judging distance — **← Mova's choice** · score 5
- **2.** Predators commonly possess lateral eyes for a wide view — no support
- **3.** Predators commonly possess forward-facing eyes for judging distance; prey commonly possess lateral eyes for a wide view — **✓ the right answer** · score 5
- **4.** The position of the eyes bears no relation to the manner of life, being decided entirely by the size of the head — no support

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**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 137, line 7: «Mantises can turn their heads about 180 degrees to follow prey without moving their bodies, and scientists put tiny 3D glasses on them to show they judge dista…», reached through the same lesson line as the sentence the question matched. What matched: the same action «judge» (+3); the same thing acted on «distance» (+2). The right option, 3, scored 5. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/142-zootopia-real-sloths-shrews-predators-and-prey/e3/)

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### Exam question 4 · formal language · wrong ✗ {#e4}

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Ascertain the relative abundance of predators and prey in a natural ecosystem such as the Serengeti.

- **1.** Predators greatly outnumber prey animals — **← Mova's choice** · no support
- **2.** Prey animals are wholly absent — no support
- **3.** Predators and prey occur in equal numbers — no support
- **4.** Prey animals greatly outnumber predators — **✓ the right answer** · no support

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**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](https://md.mova.elamur.ai/free/en/corpora/questions/biology/142-zootopia-real-sloths-shrews-predators-and-prey/e4/)

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- ← previous: [141. Zootopia: real foxes and rabbits](https://md.mova.elamur.ai/free/en/school-run/biology/141-zootopia-real-foxes-and-rabbits/)
- next →: [143. Bambi: real deer, rabbits, skunks and owls](https://md.mova.elamur.ai/free/en/school-run/biology/143-bambi-real-deer-rabbits-skunks-and-owls/)
- ↑ back to [Biology](https://md.mova.elamur.ai/free/en/school-run/biology/)