---
title: what's a decomposer then — Food chains and food webs · tree and pragmatics
description: what's a decomposer then Test 11 · ★ of lesson 26 «Food chains and food webs» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Test 11 · ★ · Food chains and food webs

<!-- .ven lang=en -->
what's a decomposer then

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** decomposer · **What happens:** be

<!-- .vabout -->
This is test 11 · ★ of lesson 26 «Food chains and food webs» of the world course of Mova's primary school. 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/world/26-food-chains-and-webs/#t11).

## The question {#question}

```conllu
# sent_id = question:world:26-food-chains-and-webs:t11:1
# text = what's a decomposer then
1	what	what	PRON	WP	PronType=Int	0	root	_	SpaceAfter=No
2	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	1	cop	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
4	decomposer	decomposer	NOUN	NN	Number=Sing	1	nsubj	_	_
5	then	then	ADV	RB	PronType=Dem	1	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | a decomposer |  |  |  | then |  | tree rules |

<!-- .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 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
A living thing that breaks down dead plants and animals

```conllu
# sent_id = question:world:26-food-chains-and-webs:t11:o1:1
# text = A living thing that breaks down dead plants and animals
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	living	living	ADJ	JJ	Degree=Pos	3	amod	_	_
3	thing	thing	NOUN	NN	Number=Sing	0	root	_	_
4	that	that	PRON	WDT	PronType=Rel	5	nsubj	_	_
5	breaks	break	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	acl:relcl	_	_
6	down	down	ADP	RP	_	5	compound:prt	_	_
7	dead	dead	ADJ	JJ	Degree=Pos	8	amod	_	_
8	plants	plant	NOUN	NNS	Number=Plur	5	obj	_	_
9	and	and	CCONJ	CC	_	10	cc	_	_
10	animals	animal	NOUN	NNS	Number=Plur	8	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **break down** | present | a living thing | dead plants and animals |  |  |  |  | vn break-45.1 «NP V NP»: agent=Agent plant=Patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
A plant that makes its own food

```conllu
# sent_id = question:world:26-food-chains-and-webs:t11:o2:1
# text = A plant that makes its own food
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	plant	plant	NOUN	NN	Number=Sing	0	root	_	_
3	that	that	PRON	WDT	PronType=Rel	4	nsubj	_	_
4	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	acl:relcl	_	_
5	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
6	own	own	ADJ	JJ	Degree=Pos	7	amod	_	_
7	food	food	NOUN	NN	Number=Sing	4	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | a plant | plant's own food |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset food=Product |

### Option 3 {#o3}

<!-- .ven lang=en -->
An animal that eats only plants

```conllu
# sent_id = question:world:26-food-chains-and-webs:t11:o3:1
# text = An animal that eats only plants
1	An	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	animal	animal	NOUN	NN	Number=Sing	0	root	_	_
3	that	that	PRON	WDT	PronType=Rel	4	nsubj	_	_
4	eats	eat	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	acl:relcl	_	_
5	only	only	ADV	RB	_	6	advmod	_	_
6	plants	plant	NOUN	NNS	Number=Plur	4	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **eat** | present | a animal | plants |  |  |  |  | vn eat-39.1-1 «NP V NP»: agent=Agent plant=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
An animal that hunts down and eats other animals for its food

```conllu
# sent_id = question:world:26-food-chains-and-webs:t11:o4:1
# text = An animal that hunts down and eats other animals for its food
1	An	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	animal	animal	NOUN	NN	Number=Sing	7	nsubj	_	_
3	that	that	PRON	WDT	PronType=Rel	4	nsubj	_	_
4	hunts	hunt	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	acl:relcl	_	_
5	down	down	ADV	RB	_	4	advmod	_	_
6	and	and	CCONJ	CC	_	4	cc	_	_
7	eats	eat	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
8	other	other	ADJ	JJ	Degree=Pos	9	amod	_	_
9	animals	animal	NOUN	NNS	Number=Plur	7	obj	_	_
10	for	for	ADP	IN	_	12	case	_	_
11	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	12	nmod:poss	_	_
12	food	food	NOUN	NN	Number=Sing	7	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **hunt down** | present | a animal |  |  |  |  | down *property* | vn hunt-35.1 «NP V»: agent=Agent |
| 2 | **eat** | present | a animal | other animals |  |  |  | for animal's food | vn eat-39.1-1 «NP V NP»: agent=Agent animal=Patient |

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**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.

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- ← previous: [Food chains and food webs, test 10](https://md.mova.elamur.ai/free/en/corpora/questions/world/26-food-chains-and-webs/t10/)
- next →: [Food chains and food webs, test 12](https://md.mova.elamur.ai/free/en/corpora/questions/world/26-food-chains-and-webs/t12/)
- ↑ back to [Food chains and food webs](https://md.mova.elamur.ai/free/en/corpora/questions/world/26-food-chains-and-webs/)