---
title: Identify the reason for which only female mosquitoes consume blood. — Bites, stings and scratches: mosquitoe… · tree and pragmatics
description: Identify the reason for which only female mosquitoes consume blood. Exam question 1 of lesson 399 «Bites, stings and scratches: mosquitoes, wasps, ticks, dog bites and cat scratches» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each o
---

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# Exam question 1 · Bites, stings and scratches: mosquitoes, wasps, ticks, dog…

<!-- .ven lang=en -->
Identify the reason for which only female mosquitoes consume blood.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** you, female mosquitoes · **What happens:** identify, consume · **To what, where:** reason, blood

<!-- .vabout -->
This is exam question 1 of lesson 399 «Bites, stings and scratches: mosquitoes, wasps, ticks, dog bites and cat scratches» 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/399-bites-stings-and-scratches-mosquitoes-wasps-ticks-dog-bites-and-cat-scratches/#e1).

## The question {#question}

```conllu
# sent_id = question:biology:399-bites-stings-and-scratches-mosquitoes-wasps-ticks-dog-bites-and-cat-scratches:e1:1
# text = Identify the reason for which only female mosquitoes consume blood.
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	only	only	ADV	RB	_	8	advmod	_	_
7	female	female	ADJ	JJ	Degree=Pos	8	amod	_	_
8	mosquitoes	mosquito	NOUN	NNS	Number=Plur	9	nsubj	_	_
9	consume	consume	VERB	VB	VerbForm=Inf	3	acl:relcl	_	_
10	blood	blood	NOUN	NN	Number=Sing	9	obj	_	SpaceAfter=No
11	.	.	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 | **consume** | infinitive | female mosquitoes | blood |  |  |  | for the reason | vn consume-66 «NP V NP»: agent=Agent blood=Asset |

<!-- .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 {#o1}

<!-- .ven lang=en -->
Blood constitutes the sole food of all mosquitoes

```conllu
# sent_id = question:biology:399-bites-stings-and-scratches-mosquitoes-wasps-ticks-dog-bites-and-cat-scratches:e1:o1:1
# text = Blood constitutes the sole food of all mosquitoes
1	Blood	blood	NOUN	NN	Number=Sing	2	nsubj	_	_
2	constitutes	constitute	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	sole	sole	ADJ	JJ	Degree=Pos	5	amod	_	_
5	food	food	NOUN	NN	Number=Sing	2	obj	_	_
6	of	of	ADP	IN	_	8	case	_	_
7	all	all	DET	DT	PronType=Tot	8	det	_	_
8	mosquitoes	mosquito	NOUN	NNS	Number=Plur	5	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **constitute** | present | Blood | the sole food of all mosquitoes |  |  |  |  | vn comprise-107.2-1 «NP V NP»: agent=Theme food=Pivot |

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
They require blood for the production of their eggs

```conllu
# sent_id = question:biology:399-bites-stings-and-scratches-mosquitoes-wasps-ticks-dog-bites-and-cat-scratches:e1:o2:1
# text = They require blood for the production of their eggs
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	require	require	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	blood	blood	NOUN	NN	Number=Sing	2	obj	_	_
4	for	for	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	production	production	NOUN	NN	Number=Sing	2	obl	_	_
7	of	of	ADP	IN	_	9	case	_	_
8	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	9	nmod:poss	_	_
9	eggs	egg	NOUN	NNS	Number=Plur	6	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **require** | present | They | blood |  |  |  | for the production of their eggs | vn require-103-1 «NP V NP»: agent=Theme blood=Precondition |
| 2 | **produce** |  |  | their eggs |  |  |  |  | nom production «act transitive»: of=patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
They require blood in order to maintain their body temperature

```conllu
# sent_id = question:biology:399-bites-stings-and-scratches-mosquitoes-wasps-ticks-dog-bites-and-cat-scratches:e1:o3:1
# text = They require blood in order to maintain their body temperature
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	require	require	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	blood	blood	NOUN	NN	Number=Sing	2	obj	_	_
4	in	in	ADP	IN	_	5	case	_	_
5	order	order	NOUN	NN	Number=Sing	2	obl	_	_
6	to	to	PART	TO	_	7	mark	_	_
7	maintain	maintain	VERB	VB	VerbForm=Inf	2	advcl	_	_
8	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	10	nmod:poss	_	_
9	body	body	NOUN	NN	Number=Sing	10	compound	_	_
10	temperature	temperature	NOUN	NN	Number=Sing	7	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **require** | present | They | blood |  | order |  |  | vn require-103-1 «NP V NP»: agent=Theme blood=Precondition |
| 2 | **maintain** | to-infinitive | They *not said here* | their body temperature |  |  |  |  | vn declare-29.4-1 «NP V NP ADJ»: agent=Agent temperature=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
They require blood for the growth of their wings

```conllu
# sent_id = question:biology:399-bites-stings-and-scratches-mosquitoes-wasps-ticks-dog-bites-and-cat-scratches:e1:o4:1
# text = They require blood for the growth of their wings
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	require	require	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	blood	blood	NOUN	NN	Number=Sing	2	obj	_	_
4	for	for	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	growth	growth	NOUN	NN	Number=Sing	2	obl	_	_
7	of	of	ADP	IN	_	9	case	_	_
8	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	9	nmod:poss	_	_
9	wings	wing	NOUN	NNS	Number=Plur	6	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **require** | present | They | blood |  |  |  | for the growth of their wings | vn require-103-1 «NP V NP»: agent=Theme blood=Precondition |
| 2 | **grow** |  | their wings |  |  |  |  |  | nom growth «process intransitive»: of=agent |

<!-- 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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- ← previous: [Bites, stings and scratches: mosquitoe…, test 12](https://md.mova.elamur.ai/free/en/corpora/questions/biology/399-bites-stings-and-scratches-mosquitoes-wasps-ticks-dog-bites-and-cat-scratches/t12/)
- next →: [Bites, stings and scratches: mosquitoe…, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/biology/399-bites-stings-and-scratches-mosquitoes-wasps-ticks-dog-bites-and-cat-scratches/e2/)
- ↑ back to [Bites, stings and scratches: mosquitoes, wasps, ticks, dog bites and cat scratches](https://md.mova.elamur.ai/free/en/corpora/questions/biology/399-bites-stings-and-scratches-mosquitoes-wasps-ticks-dog-bites-and-cat-scratches/)