---
title: Which of the following statements most accurately characterises the… — The end of the dinosaurs, and birds as… · tree and pragmatics
description: Which of the following statements most accurately characterises the evolutionary origin of birds? Exam question 2 of lesson 76 «The end of the dinosaurs, and birds as living dinosaurs» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each
---

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# Exam question 2 · The end of the dinosaurs, and birds as living dinosaurs

<!-- .ven lang=en -->
Which of the following statements most accurately characterises the evolutionary origin of birds?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **What happens:** follow, characteris · **To what, where:** evolutionary origin

<!-- .vabout -->
This is exam question 2 of lesson 76 «The end of the dinosaurs, and birds as living dinosaurs» 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/76-end-of-the-dinosaurs-and-birds/#e2).

## The question {#question}

```conllu
# sent_id = question:biology:76-end-of-the-dinosaurs-and-birds:e2:1
# text = Which of the following statements most accurately characterises the evolutionary origin of birds?
1	Which	which	PRON	WDT	PronType=Rel	8	nsubj	_	_
2	of	of	ADP	IN	_	5	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	following	follow	VERB	VBG	VerbForm=Ger	5	amod	_	_
5	statements	statement	NOUN	NNS	Number=Plur	8	obl	_	_
6	most	most	ADV	RBS	Degree=Sup	7	advmod	_	_
7	accurately	accurately	ADV	RB	_	8	advmod	_	_
8	characterises	characteris	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
10	evolutionary	evolutionary	ADJ	JJ	Degree=Pos	11	amod	_	_
11	origin	origin	NOUN	NN	Number=Sing	8	obj	_	_
12	of	of	ADP	IN	_	13	case	_	_
13	birds	bird	NOUN	NNS	Number=Plur	11	nmod	_	SpaceAfter=No
14	?	?	PUNCT	.	_	8	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | gerund |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=Theme |
| 2 | **characteris** | present |  | the evolutionary origin of birds |  |  |  | of the following statements; accurately *property* | 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 {#o1}

<!-- .ven lang=en -->
Birds are descended from the pterosaurs, the flying reptiles of the Mesozoic

```conllu
# sent_id = question:biology:76-end-of-the-dinosaurs-and-birds:e2:o1:1
# text = Birds are descended from the pterosaurs, the flying reptiles of the Mesozoic
1	Birds	bird	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	descended	descend	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	from	from	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	pterosaurs	pterosaur	NOUN	NNS	Number=Plur	3	obl	_	SpaceAfter=No
7	,	,	PUNCT	,	_	10	punct	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
9	flying	fly	VERB	VBG	VerbForm=Ger	10	amod	_	_
10	reptiles	reptile	NOUN	NNS	Number=Plur	6	nmod	_	_
11	of	of	ADP	IN	_	13	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	Mesozoic	Mesozoic	PROPN	NNP	Number=Sing	10	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **descend** | present · passive |  | Birds |  | the pterosaurs  the flying reptiles of the Mesozoic |  |  | vn meander-47.7-1 «PP.location V NP»: subject=Theme |
| 2 | **fly** | gerund |  |  |  |  |  |  | vn spatial\_configuration-47.6-1 «NP V»: agent=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
Birds are descended from the long-necked sauropods

```conllu
# sent_id = question:biology:76-end-of-the-dinosaurs-and-birds:e2:o2:1
# text = Birds are descended from the long-necked sauropods
1	Birds	bird	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	descended	descend	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	from	from	ADP	IN	_	9	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
6	long	long	ADJ	JJ	Degree=Pos	8	amod	_	SpaceAfter=No
7	-	-	PUNCT	HYPH	_	6	punct	_	SpaceAfter=No
8	necked	neck	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	9	amod	_	_
9	sauropods	sauropod	NOUN	NNS	Number=Plur	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **descend** | present · passive |  | Birds |  | the necked sauropods |  |  | vn meander-47.7-1 «PP.location V NP»: subject=Theme |
| 2 | **neck** | participle |  |  |  |  |  |  | vn marry-36.2 «NP V»: agent=Agent |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Birds are descended from small feathered carnivorous dinosaurs

```conllu
# sent_id = question:biology:76-end-of-the-dinosaurs-and-birds:e2:o3:1
# text = Birds are descended from small feathered carnivorous dinosaurs
1	Birds	bird	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	descended	descend	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	from	from	ADP	IN	_	8	case	_	_
5	small	small	ADJ	JJ	Degree=Pos	8	amod	_	_
6	feathered	feathered	ADJ	JJ	Degree=Pos	8	amod	_	_
7	carnivorous	carnivorous	ADJ	JJ	Degree=Pos	8	amod	_	_
8	dinosaurs	dinosaur	NOUN	NNS	Number=Plur	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **descend** | present · passive |  | Birds |  |  |  | from small feathered carnivorous dinosaurs | vn meander-47.7-1 «PP.location V NP»: subject=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
Birds arose independently of all reptiles

```conllu
# sent_id = question:biology:76-end-of-the-dinosaurs-and-birds:e2:o4:1
# text = Birds arose independently of all reptiles
1	Birds	bird	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	arose	arise	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
3	independently	independently	ADV	RB	_	2	advmod	_	_
4	of	of	ADP	IN	_	6	case	_	_
5	all	all	DET	DT	PronType=Tot	6	det	_	_
6	reptiles	reptile	NOUN	NNS	Number=Plur	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **arise** | past | Birds |  |  |  |  | of all reptiles; independently *property* | vn appear-48.1.1 «NP V»: agent=Theme |

<!-- 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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