---
title: Identify the factor which determines the sex of crocodile hatchlings. — Crocodiles and alligators · tree and pragmatics
description: Identify the factor which determines the sex of crocodile hatchlings. Exam question 2 of lesson 29 «Crocodiles and alligators» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/biology/29-crocodiles-and-alligators/e2/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/questions/biology/) / [Crocodiles and alligators](https://md.mova.elamur.ai/free/en/corpora/questions/biology/29-crocodiles-and-alligators/) / e2

# Exam question 2 · Crocodiles and alligators

<!-- .ven lang=en -->
Identify the factor which determines the sex of crocodile hatchlings.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you, factor · **What happens:** identify, determine, sex · **To what, where:** factor, sex, crocodile hatchlings

<!-- .vabout -->
This is exam question 2 of lesson 29 «Crocodiles and alligators» 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/29-crocodiles-and-alligators/#e2).

## The question {#question}

```conllu
# sent_id = question:biology:29-crocodiles-and-alligators:e2:1
# text = Identify the factor which determines the sex of crocodile hatchlings.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	factor	factor	NOUN	NN	Number=Sing	1	obj	_	_
4	which	which	PRON	WDT	PronType=Rel	5	nsubj	_	_
5	determines	determine	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	acl:relcl	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	sex	sex	NOUN	NN	Number=Sing	5	obj	_	_
8	of	of	ADP	IN	_	10	case	_	_
9	crocodile	crocodile	NOUN	NN	Number=Sing	10	compound	_	_
10	hatchlings	hatchling	NOUN	NNS	Number=Plur	7	nmod	_	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 factor |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent factor=Theme |
| 2 | **determine** | present | the factor | the sex of crocodile hatchlings |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent sex=Topic |
| 3 | **sex** |  |  | crocodile hatchlings |  |  |  |  | nom sex «act transitive»: of=patient |

<!-- .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 -->
The temperature at which the eggs are incubated

```conllu
# sent_id = question:biology:29-crocodiles-and-alligators:e2:o1:1
# text = The temperature at which the eggs are incubated
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	temperature	temperature	NOUN	NN	Number=Sing	0	root	_	_
3	at	at	ADP	IN	_	4	case	_	_
4	which	which	PRON	WDT	PronType=Rel	8	obl	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	eggs	egg	NOUN	NNS	Number=Plur	8	nsubj:pass	_	_
7	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	8	aux:pass	_	_
8	incubated	incubate	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	acl:relcl	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
The month of laying

```conllu
# sent_id = question:biology:29-crocodiles-and-alligators:e2:o2:1
# text = The month of laying
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	month	month	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	laying	laying	NOUN	NN	Number=Sing	2	nmod	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 3 {#o3}

<!-- .ven lang=en -->
The age of the mother

```conllu
# sent_id = question:biology:29-crocodiles-and-alligators:e2:o3:1
# text = The age of the mother
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	age	age	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	mother	mother	NOUN	NN	Number=Sing	2	nmod	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 4 {#o4}

<!-- .ven lang=en -->
The depth of the river in which the mother lives

```conllu
# sent_id = question:biology:29-crocodiles-and-alligators:e2:o4:1
# text = The depth of the river in which the mother lives
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	depth	depth	NOUN	NN	Number=Sing	10	nsubj	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	river	river	NOUN	NN	Number=Sing	2	nmod	_	_
6	in	in	ADP	IN	_	7	case	_	_
7	which	which	PRON	WDT	PronType=Rel	9	obl	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	mother	mother	NOUN	NN	Number=Sing	5	conj	_	_
10	lives	live	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **live** | present | the depth of the river and the mother |  |  |  |  |  | vn exist-47.1-1 «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 -->

<!-- pn -->
- ← previous: [Crocodiles and alligators, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/biology/29-crocodiles-and-alligators/e1/)
- next →: [Crocodiles and alligators, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/29-crocodiles-and-alligators/e3/)
- ↑ back to [Crocodiles and alligators](https://md.mova.elamur.ai/free/en/corpora/questions/biology/29-crocodiles-and-alligators/)