---
title: Record-breakers: the fastest and the slowest — how Mova does on the tests · Biology
description: Lesson 185 of the biology course of Mova's primary school: 6 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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# Record-breakers: the fastest and the slowest

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**Tests:** 6 of 11 right · **Exam:** 1 of 4 right · **Kind:** ★★ · **Understood:** 9 of 15 · **Run:** 2026-10-18, commit `f3c23ea72`

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Lesson 185 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/185-record-breakers-the-fastest-and-the-slowest/).

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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/185-record-breakers-the-fastest-and-the-slowest/).

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### Test 1 · ★★ · right ✓ {#t1}

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In Looney Tunes the Road Runner always outruns the coyote. What is true in real life?

- **1.** Coyotes are slower than sloths — no support
- **2.** A real coyote runs about twice as fast as a real roadrunner — **← Mova's choice** · **✓ the right answer** · score 4
- **3.** Roadrunners are faster than cheetahs — no support
- **4.** Roadrunners are the fastest birds alive — no support

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**Why:** It took the question to ask which statement is true. It chose option 2 with score 4, the only option with support. Its support: lesson 185, line 16: «A real roadrunner is a bird that runs about thirty kilometres an hour, and a real coyote can run about twice as fast.», reached through the option's own match among the sentences about the question's things. What matched: the same property (+3); the same action «run about» (+2). Against it: the same doer «real coyote» (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/185-record-breakers-the-fastest-and-the-slowest/t1/)

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### Test 2 · ★★ · right ✓ {#t2}

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In Zootopia a sloth named Flash works painfully slowly. Why are real sloths slow?

- **1.** They are lazy on purpose — no support
- **2.** They have no muscles — no support
- **3.** They are always sleepy from drinking coffee, which grows in the jungle — no support
- **4.** Their leafy food gives little energy, and slowness hides them — **← Mova's choice** · **✓ the right answer** · score 9

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**Why:** It took the question to ask which statement is true. It chose option 4 with score 9, the only option with support. 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 «give» (+5); the same doer «leaves» (+3); the same thing acted on «little energy» (+1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/185-record-breakers-the-fastest-and-the-slowest/t2/)

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### Test 3 · ★★ · right ✓ {#t3}

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In the film Turbo a snail wins a car race. Which real animal can beat a car on a motorway?

- **1.** A tortoise — no support
- **2.** A falcon diving, and maybe a free-tailed bat — **← Mova's choice** · **✓ the right answer** · score 9
- **3.** A garden snail sliding downhill on a wet, rainy day — score 2
- **4.** A sloth — no support

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**Why:** It took the question to ask who or what does it. It chose option 2 with score 9, against 2 for the next best. Its support: lesson 112, line 1: «A wild animal spends most of its day busy: searching for food, digging, climbing, sniffing and chasing. In a zoo the food comes easily, so keepers have to give…», reached through the option's own match among the sentences about the question's things. What matched: the same action «chase» (+4); it fills the role the question asks for (+3); the same doer «wild animal» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/185-record-breakers-the-fastest-and-the-slowest/t3/)

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### Test 4 · ★★ · wrong ✗ {#t4}

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«cheetah's the fastest animal full stop» What is right?

- **1.** No, a sloth is faster — **← Mova's choice** · no support
- **2.** Right, nothing is faster — no support
- **3.** No, a horse is faster — no support
- **4.** Fastest on land, but a diving peregrine falcon is faster — **✓ 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/185-record-breakers-the-fastest-and-the-slowest/t4/)

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### Test 5 · ★★ · wrong ✗ {#t5}

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«3 cheetahs, 2 sloths, how many legs»

- **1.** 16 — **← Mova's choice** · no support
- **2.** 24 — no support
- **3.** 12 — no support
- **4.** 20 — **✓ 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/185-record-breakers-the-fastest-and-the-slowest/t5/)

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### Test 6 · ★★ · wrong ✗ {#t6}

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«a hummingbird's got 2 wings, there are 4 at the feeder, how many wings beating»

- **1.** 16 — **← Mova's choice** · no support
- **2.** 6 — no support
- **3.** 4 — no support
- **4.** 8 — **✓ 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/185-record-breakers-the-fastest-and-the-slowest/t6/)

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### Test 7 · ★★ · right ✓ {#t7}

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What would happen if a cheetah tried to chase a pronghorn for a long time?

- **1.** The cheetah would overheat and give up, while the pronghorn kept going — **← Mova's choice** · **✓ the right answer** · score 7
- **2.** The pronghorn would turn and chase the cheetah — no support
- **3.** The cheetah would win easily after an hour — score 4
- **4.** Both would fall asleep — no support

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**Why:** It took the question to ask what happens next. It chose option 1 with score 7, against 4 for the next best. Its support: lesson 20, line 10: «The cheetah is the fastest land animal, reaching about 100 kilometres per hour in a sprint with long legs, a light body, a bendy spine and a steering tail, but…», reached through the same lesson line as the sentence the question matched. What matched: the same action «overheat» (+4); the same doer «cheetah» (+3). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/185-record-breakers-the-fastest-and-the-slowest/t7/)

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### Test 8 · ★★ · right ✓ {#t8}

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«why's that beetle stopping and starting, is it stupid»

- **1.** It runs so fast its eyes cannot keep up, so it stops to look — **← Mova's choice** · **✓ the right answer** · score 11
- **2.** It is too tired — no support
- **3.** It is lost — no support
- **4.** It is playing a game — no support

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**Why:** It took the question to ask which statement is true. It chose option 1 with score 11, the only option with support. Its support: lesson 185, line 9: «The tiger beetle runs so fast for its size that its eyes cannot keep up, so it stops to look again; for its size it is faster than a cheetah.», reached through the same lesson line as the sentence the question matched. What matched: the same action «run» (+5); the same doer «tiger beetle» (+3); the same property (+3). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/185-record-breakers-the-fastest-and-the-slowest/t8/)

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### Test 9 · ★★ · right ✓ {#t9}

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«horses sleep lying down only, everyone knows» What is right?

- **1.** Horses can doze standing up because tendons lock their legs — **← Mova's choice** · **✓ the right answer** · score 8
- **2.** Horses sleep hanging upside down from trees, like bats in a cave — score 1
- **3.** Right, they always lie down — no support
- **4.** Horses never sleep — score -1

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**Why:** It took the question to ask which statement is true. It chose option 1 with score 8, against 1 for the next best. Its support: lesson 25, line 6: «Horses can sleep standing up because a locking system in their legs, the stay apparatus, holds them up, though they still lie down for short times for deep sle…», reached through the same lesson line as the sentence the question matched. What matched: the same action «stand up» (+5); the same doer «horses» (+3). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/185-record-breakers-the-fastest-and-the-slowest/t9/)

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### Test 10 · ★★ · wrong ✗ {#t10}

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Which tiny animal has one of the fastest movements of any animal?

- **1.** A tortoise walking — **← Mova's choice** · no support
- **2.** A sloth climbing slowly up a tall tree — no support
- **3.** A soldier termite snapping its jaws — **✓ the right answer** · no support
- **4.** A jellyfish drifting in the sea — 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/185-record-breakers-the-fastest-and-the-slowest/t10/)

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### Test 11 · ★★ · wrong ✗ {#t11}

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«hummingbird heart beats once a minute, its so tiny» What is right?

- **1.** It has no heart — **← Mova's choice** · score 2
- **2.** It beats only once an hour, so it saves its energy — score 1
- **3.** It has the fastest heartbeat of any bird — **✓ the right answer** · no support
- **4.** Right, very slow — no support

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**Why:** It took the question to ask which statement is true. It chose option 1 with score 2, against 1 for the next best. Its support: lesson 41, line 1: «Counting an animal's parts is a real scientist's game: how many hearts, eyes, legs or teeth it has tells you how it lives, and the numbers are often stranger t…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «many hearts» (+2); the same light verb (be, have, do, get, go) (+1). Against it: the same doer «game» (-1). The right option, 3, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/185-record-breakers-the-fastest-and-the-slowest/t11/)

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

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Identify the animal that attains the greatest speed known in the animal kingdom, and the circumstance in which it does so.

- **1.** The racehorse, upon a track — **← Mova's choice** · no support
- **2.** The cheetah, during a sustained run of one hour — no support
- **3.** The sailfish, while resting — no support
- **4.** The peregrine falcon, during a dive with wings folded — **✓ 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/185-record-breakers-the-fastest-and-the-slowest/e1/)

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

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Ascertain the reason for which the cheetah is incapable of maintaining its maximum speed for an extended period.

- **1.** Its body temperature rises excessively — **← Mova's choice** · **✓ the right answer** · no support
- **2.** Its claws become blunt — no support
- **3.** It lacks lungs of any kind — no support
- **4.** It is compelled to stop and feed upon the carcass of its prey — 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/185-record-breakers-the-fastest-and-the-slowest/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 slowness of the sloth?

- **1.** It is a consequence of permanent sleep — no support
- **2.** It is the result of injury in all individuals — no support
- **3.** It enables the sloth to pursue prey — **← Mova's choice** · score 6
- **4.** It conserves energy on a diet of little energy and renders the animal less conspicuous to hawks — **✓ the right answer** · no support

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**Why:** It took the question to ask who or what does it. It chose option 3 with score 6, the only option with support. 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 remembered sentence the question matched. What matched: the same thing acted on «prey» (+3); the same action «follow» (+2); a different doer (counts against) (+1). The right option, 4, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/185-record-breakers-the-fastest-and-the-slowest/e3/)

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

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Select the response consistent with the established facts concerning the trap-jaw ant.

- **1.** It is the slowest of all insects — **← Mova's choice** · score 2
- **2.** Its jaws close faster than almost any other animal movement and may propel it into the air — **✓ the right answer** · no support
- **3.** It flies by flapping its jaws — score 0
- **4.** It possesses no jaws — score -1

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**Why:** It took the question to ask which statement is true. It chose option 1 with score 2, against 0 for the next best. Its support: lesson 97, line 3: «Counting legs sorts them out: ants, beetles, mantises and cockroaches have six legs and are insects, while tarantulas and scorpions have eight and are relative…», reached through the option's own match among the sentences about the question's things. What matched: the same circumstance (+2); the same light verb (be, have, do, get, go) (+1). Against it: the same doer «ants» (-1). The right option, 2, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/185-record-breakers-the-fastest-and-the-slowest/e4/)

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- ← previous: [184. Great rivers and wetlands: Nile crocodiles, hipp…](https://md.mova.elamur.ai/free/en/school-run/biology/184-great-rivers-and-wetlands-nile-crocodiles-hippos-giant-catfish-and-the-pantanal/)
- next →: [186. Record-breakers: the biggest and the smallest](https://md.mova.elamur.ai/free/en/school-run/biology/186-record-breakers-the-biggest-and-the-smallest/)
- ↑ back to [Biology](https://md.mova.elamur.ai/free/en/school-run/biology/)

