---
title: Identify the reason for which a stick insect falls and remains motio… — Unusual pets: stick insects, giant sna… · tree and pragmatics
description: Identify the reason for which a stick insect falls and remains motionless when disturbed. Exam question 1 of lesson 330 «Unusual pets: stick insects, giant snails, ant farms and hermit crabs» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and 
---

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# Exam question 1 · Unusual pets: stick insects, giant snails, ant farms and h…

<!-- .ven lang=en -->
Identify the reason for which a stick insect falls and remains motionless when disturbed.

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 4 · right ✓ · **Who acts:** you, stick insect · **What happens:** identify, fall, remain, disturb · **To what, where:** reason

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This is exam question 1 of lesson 330 «Unusual pets: stick insects, giant snails, ant farms and hermit crabs» of the biology course of Mova's primary school, asked in stiff, formal language. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/biology/330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs/#e1).

## The question {#question}

```conllu
# sent_id = question:biology:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs:e1:1
# text = Identify the reason for which a stick insect falls and remains motionless when disturbed.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	reason	reason	NOUN	NN	Number=Sing	1	obj	_	_
4	for	for	ADP	IN	_	5	case	_	_
5	which	which	PRON	WDT	PronType=Rel	9	obl	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	stick	stick	NOUN	NN	Number=Sing	8	compound	_	_
8	insect	insect	NOUN	NN	Number=Sing	9	nsubj	_	_
9	falls	fall	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	acl	_	_
10	and	and	CCONJ	CC	_	11	cc	_	_
11	remains	remain	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	conj	_	_
12	motionless	motionless	ADJ	JJ	Degree=Pos	11	xcomp	_	_
13	when	when	SCONJ	WRB	_	14	mark	_	_
14	disturbed	disturb	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	11	advcl	_	SpaceAfter=No
15	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **identify** | imperative | you *not said here* | the reason |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent reason=Theme |
| 2 | **fall** | present | a stick insect |  |  |  |  | for the reason | vn long-32.2 «NP V PP.theme»: agent=Pivot for which=Theme |
| 3 | **remain** | present | a stick insect *not said here* |  |  |  |  | motionless *property* | vn exist-47.1 «NP V»: agent=Theme |
| 4 | **disturb** | participle | a stick insect *not said here* |  |  |  |  |  | vn amuse-31.1 «NP V ADV-Middle»: agent=Experiencer |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
The insect is commencing hibernation

```conllu
# sent_id = question:biology:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs:e1:o1:1
# text = The insect is commencing hibernation
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	insect	insect	NOUN	NN	Number=Sing	4	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
4	commencing	commence	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
5	hibernation	hibernation	NOUN	NN	Number=Sing	4	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **commence** | present · progressive | the insect | hibernation |  |  |  |  | vn begin-55.1-1-1 «NP V NP»: agent=Agent hibernation=Eventuality |

### Option 2 {#o2}

<!-- .ven lang=en -->
The insect has suffered a permanent injury

```conllu
# sent_id = question:biology:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs:e1:o2:1
# text = The insect has suffered a permanent injury
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	insect	insect	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	has	have	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
4	suffered	suffer	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	permanent	permanent	ADJ	JJ	Degree=Pos	7	amod	_	_
7	injury	injury	NOUN	NN	Number=Sing	4	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **suffer** | present · perfect · passive |  | the insect |  |  |  |  | tree rules |

### Option 3 {#o3}

<!-- .ven lang=en -->
The insect is seeking food upon the ground

```conllu
# sent_id = question:biology:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs:e1:o3:1
# text = The insect is seeking food upon the ground
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	insect	insect	NOUN	NN	Number=Sing	4	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
4	seeking	seek	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
5	food	food	NOUN	NN	Number=Sing	4	obj	_	_
6	upon	upon	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	ground	ground	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **seek** | present · progressive | the insect | food |  | the ground |  |  | vn hunt-35.1 «NP V NP PP.location»: agent=Agent food=Theme upon ground=Location |

### Option 4 · ← Mova's choice · ✓ the right answer {#o4}

<!-- .ven lang=en -->
Feigning death causes a predator to lose interest

```conllu
# sent_id = question:biology:330-unusual-pets-stick-insects-giant-snails-ant-farms-and-hermit-crabs:e1:o4:1
# text = Feigning death causes a predator to lose interest
1	Feigning	feign	VERB	VBG	VerbForm=Ger	3	csubj	_	_
2	death	death	NOUN	NN	Number=Sing	1	obj	_	_
3	causes	cause	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	predator	predator	NOUN	NN	Number=Sing	3	obj	_	_
6	to	to	PART	TO	_	7	mark	_	_
7	lose	lose	VERB	VB	VerbForm=Inf	3	xcomp	_	_
8	interest	interest	NOUN	NN	Number=Sing	7	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **feign** | gerund |  | death |  |  |  |  | vn establish-55.5-1 «NP V NP»: agent=Agent death=Patient |
| 2 | **cause** | present | Feigning | a predator |  |  |  |  | tree rules |
| 3 | **lose** | to-infinitive | a predator *not said here* | interest |  |  |  |  | vn succeed-74-3-1 «NP V NP»: agent=Agent interest=Eventuality |

<!-- div src -->

**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

<!-- /div -->

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