---
title: Counting animals: legs, arms, wings and tails — how Mova does on the tests · Biology
description: Lesson 40 of the biology course of Mova's primary school: 3 of 12 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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# Counting animals: legs, arms, wings and tails

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**Tests:** 3 of 12 right · **Exam:** 1 of 4 right · **Kind:** plain · **Understood:** 6 of 16 · **Run:** 2026-10-18, commit `f3c23ea72`

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Lesson 40 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/40-counting-legs-arms-wings-and-tails/).

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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/40-counting-legs-arms-wings-and-tails/).

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### Test 1 · wrong ✗ {#t1}

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got 7 ants in the jar lol how many legs is that

- **1.** 56 — **← Mova's choice** · no support
- **2.** 35 — no support
- **3.** 49 — no support
- **4.** 42 — **✓ 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/40-counting-legs-arms-wings-and-tails/t1/)

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### Test 2 · wrong ✗ {#t2}

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3 spiders in the shed, no wait, 4. how many legs altogether

- **1.** 36 — **← Mova's choice** · no support
- **2.** 28 — no support
- **3.** 24 — no support
- **4.** 32 — **✓ 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/40-counting-legs-arms-wings-and-tails/t2/)

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### Test 3 · wrong ✗ {#t3}

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An octopus and a squid share a tank. How many limbs altogether, arms and tentacles?

- **1.** 14 — **← Mova's choice** · no support
- **2.** 16 — no support
- **3.** 18 — **✓ the right answer** · no support
- **4.** 20 — no support

<!-- .why -->
**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/40-counting-legs-arms-wings-and-tails/t3/)

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### Test 4 · wrong ✗ {#t4}

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In a cartoon an octopus has ten wiggly tentacles. What would you fix?

- **1.** It has twelve arms — **← Mova's choice** · score 4
- **2.** It has six arms — score 4
- **3.** It has eight arms; ten limbs is a squid — **✓ the right answer** · score 4
- **4.** Nothing is wrong — no support

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**Why:** It took the question to ask what it is done to. It chose option 1 with score 4, tied with another option at 4 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 40, line 8: «An octopus has eight arms with suckers all along them, and scientists call them arms, not tentacles.», reached through the option's own match among the sentences about the question's things. What matched: the same light verb (be, have, do, get, go) (+4); the same doer «octopus» (+1). Against it: the same thing acted on «eight arms» (-1). The right option, 3, scored 4. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/40-counting-legs-arms-wings-and-tails/t4/)

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### Test 5 · right ✓ {#t5}

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A yellow and black insect hovers by the flowers. You count two wings. What is it?

- **1.** A honeybee — no support
- **2.** A wasp — no support
- **3.** A hoverfly, a harmless fly — **← Mova's choice** · **✓ the right answer** · score 7
- **4.** A bumblebee — no support

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**Why:** It took the question to ask what it is done to. It chose option 3 with score 7, the only option with support. Its support: lesson 40, line 5: «Wings tell tales too: bees and wasps have four wings, but a hoverfly dressed up as a wasp has only two, so counting wings unmasks it.», 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 «hoverfly» (+3). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/40-counting-legs-arms-wings-and-tails/t5/)

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### Test 6 · wrong ✗ {#t6}

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My mate counted a bee's wings and got two, so bees have two wings, innit?

- **1.** Yes, but queens have four — no support
- **2.** No, bees have six — no support
- **3.** Yes, bees have just two wings, like house flies do — **← Mova's choice** · score 8
- **4.** No, bees have four, hooked together in pairs — **✓ the right answer** · score 7

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**Why:** It took the question to ask which statement is true. It chose option 3 with score 8, against 7 for the next best. Its support: lesson 40, line 5: «Wings tell tales too: bees and wasps have four wings, but a hoverfly dressed up as a wasp has only two, so counting wings unmasks it.», reached through the remembered sentence the question matched. What matched: the same thing acted on «four wings» (+4); the same doer «bees» (+2); the same light verb (be, have, do, get, go) (+2). The right option, 4, scored 7. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/40-counting-legs-arms-wings-and-tails/t6/)

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### Test 7 · wrong ✗ {#t7}

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A caterpillar looks like it has 16 legs. How many true legs does it have?

- **1.** Eight — **← Mova's choice** · no support
- **2.** Sixteen — no support
- **3.** None — no support
- **4.** Six, at the front — **✓ the right answer** · no support

<!-- .why -->
**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/40-counting-legs-arms-wings-and-tails/t7/)

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### Test 8 · wrong ✗ {#t8}

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Your cousin says the woodlouse under the stone is an insect. How does counting legs settle it?

- **1.** It has no legs, so it is a worm — **← Mova's choice** · score 5
- **2.** It has 6 legs, so it is an insect — score 5
- **3.** It has 14 legs, so it is not an insect but a crustacean — **✓ the right answer** · score 5
- **4.** It has 8 legs, so it is a spider — score 5

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**Why:** It took the question to ask what something is like. 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 40, line 16: «A woodlouse has 14 legs and is a crustacean, related to crabs; a crab has ten legs counting its claws, which is why it is called a decapod.», reached through the option's own match among the sentences about the question's things. What matched: the same doer «woodlouse» (+3); the same thing acted on «14 legs» (+1); the same light verb (be, have, do, get, go) (+1). 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/40-counting-legs-arms-wings-and-tails/t8/)

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### Test 9 · right ✓ {#t9}

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At the farm park you count the toes of two chickens. How many toes in all?

- **1.** 16 — **← Mova's choice** · **✓ the right answer** · no support
- **2.** 12 — no support
- **3.** 8 — no support
- **4.** 20 — no support

<!-- .why -->
**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/40-counting-legs-arms-wings-and-tails/t9/)

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### Test 10 · right ✓ {#t10}

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In a game, a gorilla swings through the trees by its long tail. What is wrong?

- **1.** Gorillas are apes and have no tail — **← Mova's choice** · **✓ the right answer** · score 10
- **2.** Gorillas swing by their ears — no support
- **3.** Gorillas have short tails only — no support
- **4.** Nothing, gorillas really do use their tails to swing — score 2

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**Why:** It took the question to ask which statement is true. It chose option 1 with score 10, against 2 for the next best. Its support: lesson 15, line 17: «Gorillas, chimpanzees, bonobos and orangutans are apes, not monkeys: apes have no tail; gibbons, the acrobats of Asian forests, are smaller apes with no tail t…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «gorillas» (+5); the same thing acted on «apes» (+3); the same light verb (be, have, do, get, go) (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/40-counting-legs-arms-wings-and-tails/t10/)

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### Test 11 · wrong ✗ {#t11}

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Is a starfish with six arms a mistake of nature?

- **1.** No, it is a baby octopus — **← Mova's choice** · no support
- **2.** Yes, all starfish must have five — no support
- **3.** Yes, it is two starfish joined — no support
- **4.** No, some kinds have more arms, and a lost arm can regrow — **✓ 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/40-counting-legs-arms-wings-and-tails/t11/)

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### Test 12 · wrong ✗ {#t12}

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A five-armed starfish has how many little eyes?

- **1.** Five, one at each arm tip — **✓ the right answer** · no support
- **2.** One in the middle — no support
- **3.** None at all — no support
- **4.** Two, like a fish — **← Mova's choice** · score 4

<!-- .why -->
**Why:** It took the question to ask what it is done to. It chose option 4 with score 4, the only option with support. Its support: lesson 40, line 4: «Names can trick you: a centipede never has exactly a hundred legs, most millipedes have far fewer than a thousand, and a starfish is not a fish and can have fi…», reached through the remembered sentence the question matched. What matched: the same doer «starfish» (+4); it fills the role the question asks for (+1). Against it: the same thing acted on «fish» (-1). The right option, 1, 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/40-counting-legs-arms-wings-and-tails/t12/)

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### Exam question 1 · formal language · right ✓ {#e1}

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Ascertain the aggregate number of legs possessed by a group of five adult insects.

- **1.** Thirty — **← Mova's choice** · **✓ the right answer** · no support
- **2.** Fifteen — no support
- **3.** Forty — no support
- **4.** Twenty-five — no support

<!-- .why -->
**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/40-counting-legs-arms-wings-and-tails/e1/)

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### Exam question 2 · formal language · wrong ✗ {#e2}

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Which of the following statements most accurately characterises the limbs of a squid?

- **1.** Ten arms, all of equal length and bearing suckers — **← Mova's choice** · no support
- **2.** Eight arms together with two elongated tentacles — **✓ the right answer** · no support
- **3.** Six arms and four tentacles — no support
- **4.** Eight arms and no tentacles — no support

<!-- .why -->
**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/40-counting-legs-arms-wings-and-tails/e2/)

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

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It is asserted that a certain centipede possesses precisely one hundred legs. Select the response consistent with the established facts.

- **1.** The assertion is true of the young only — **← Mova's choice** · no support
- **2.** The assertion is true of all centipedes — no support
- **3.** The assertion is false, the number of leg pairs being invariably odd — **✓ the right answer** · no support
- **4.** The assertion is true of garden centipedes only — 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/40-counting-legs-arms-wings-and-tails/e3/)

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

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Identify the number of wings borne by a true fly.

- **1.** Four — **← Mova's choice** · no support
- **2.** Two — **✓ the right answer** · no support
- **3.** None — no support
- **4.** Eight — no support

<!-- .why -->
**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/40-counting-legs-arms-wings-and-tails/e4/)

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- ← previous: [39. Octopuses, squid and cuttlefish](https://md.mova.elamur.ai/free/en/school-run/biology/39-octopuses-squid-and-cuttlefish/)
- next →: [41. Counting animals: eyes, ears, hearts, trunks, te…](https://md.mova.elamur.ai/free/en/school-run/biology/41-counting-animals/)
- ↑ back to [Biology](https://md.mova.elamur.ai/free/en/school-run/biology/)