---
title: Ascertain the faculty by which the pit viper detects warm-blooded pr… — Kung Fu Panda: real mantises, snakes a… · tree and pragmatics
description: Ascertain the faculty by which the pit viper detects warm-blooded prey in darkness. Exam question 4 of lesson 137 «Kung Fu Panda: real mantises, snakes and monkeys» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choi
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/biology/137-kung-fu-panda-real-mantises-snakes-and-monkeys/e4/)

<!-- 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/) / [Kung Fu Panda: real mantises, snakes a…](https://md.mova.elamur.ai/free/en/corpora/questions/biology/137-kung-fu-panda-real-mantises-snakes-and-monkeys/) / e4

# Exam question 4 · Kung Fu Panda: real mantises, snakes and monkeys

<!-- .ven lang=en -->
Ascertain the faculty by which the pit viper detects warm-blooded prey in darkness.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you, pit viper · **What happens:** ascertain, detect · **To what, where:** faculty, blooded prey, darkness

<!-- .vabout -->
This is exam question 4 of lesson 137 «Kung Fu Panda: real mantises, snakes and monkeys» 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/137-kung-fu-panda-real-mantises-snakes-and-monkeys/#e4).

## The question {#question}

```conllu
# sent_id = question:biology:137-kung-fu-panda-real-mantises-snakes-and-monkeys:e4:1
# text = Ascertain the faculty by which the pit viper detects warm-blooded prey in darkness.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	faculty	faculty	NOUN	NN	Number=Sing	1	obj	_	_
4	by	by	ADP	IN	_	5	case	_	_
5	which	which	PRON	WDT	PronType=Rel	9	obl	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
7	pit	pit	NOUN	NN	Number=Sing	8	compound	_	_
8	viper	viper	NOUN	NN	Number=Sing	9	nsubj	_	_
9	detects	detect	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	acl:relcl	_	_
10	warm	warm	ADJ	JJ	Degree=Pos	12	amod	_	SpaceAfter=No
11	-	-	PUNCT	HYPH	_	10	punct	_	SpaceAfter=No
12	blooded	blooded	ADJ	JJ	Degree=Pos	13	amod	_	_
13	prey	prey	NOUN	NN	Number=Sing	9	obj	_	_
14	in	in	ADP	IN	_	15	case	_	_
15	darkness	darkness	NOUN	NN	Number=Sing	9	obl	_	SpaceAfter=No
16	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the faculty |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent faculty=Topic |
| 2 | **detect** | present | the pit viper | blooded prey |  | darkness |  | by the faculty | vn see-30.1-1 «NP V S»: agent=Experiencer prey=Stimulus |

<!-- .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 -->
Eyes which emit light of their own

```conllu
# sent_id = question:biology:137-kung-fu-panda-real-mantises-snakes-and-monkeys:e4:o1:1
# text = Eyes which emit light of their own
1	Eyes	eye	NOUN	NNS	Number=Plur	0	root	_	_
2	which	which	PRON	WDT	PronType=Rel	3	nsubj	_	_
3	emit	emit	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	1	acl:relcl	_	_
4	light	light	NOUN	NN	Number=Sing	3	obj	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
7	own	own	ADJ	JJ	Degree=Pos	4	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **emit** | present | Eyes | light of Eyes's own |  |  |  |  | vn substance\_emission-43.4 «NP V NP»: agent=Source light=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
The sense of taste in its scales

```conllu
# sent_id = question:biology:137-kung-fu-panda-real-mantises-snakes-and-monkeys:e4:o2:1
# text = The sense of taste in its scales
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	sense	sense	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	taste	taste	NOUN	NN	Number=Sing	2	nmod	_	_
5	in	in	ADP	IN	_	7	case	_	_
6	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
7	scales	scale	NOUN	NNS	Number=Plur	2	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **sense** |  |  | taste |  | taste's scales |  |  | nom sense «cognition transitive»: of=patient in=place |

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

<!-- .ven lang=en -->
Pits upon the face which are sensitive to heat

```conllu
# sent_id = question:biology:137-kung-fu-panda-real-mantises-snakes-and-monkeys:e4:o3:1
# text = Pits upon the face which are sensitive to heat
1	Pits	pit	NOUN	NNS	Number=Plur	7	nsubj	_	_
2	upon	upon	ADP	IN	_	4	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	face	face	NOUN	NN	Number=Sing	1	nmod	_	_
5	which	which	PRON	WDT	PronType=Rel	4	nmod	_	_
6	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
7	sensitive	sensitive	ADJ	JJ	Degree=Pos	0	root	_	_
8	to	to	PART	TO	_	9	mark	_	_
9	heat	heat	VERB	VB	VerbForm=Inf	7	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Pits upon the face  Pits upon the face  Pits |  |  |  |  | sensitive *property* | tree rules |
| 2 | **heat** | to-infinitive | Pits upon the face  Pits upon the face  Pits *not said here* |  |  |  |  |  | vn cooking-45.3 «NP.patient V»: agent=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
External ears of exceptional sensitivity

```conllu
# sent_id = question:biology:137-kung-fu-panda-real-mantises-snakes-and-monkeys:e4:o4:1
# text = External ears of exceptional sensitivity
1	External	external	ADJ	JJ	Degree=Pos	2	amod	_	_
2	ears	ear	NOUN	NNS	Number=Plur	0	root	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	exceptional	exceptional	ADJ	JJ	Degree=Pos	5	amod	_	_
5	sensitivity	sensitivity	NOUN	NN	Number=Sing	2	nmod	_	_
```

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

<!-- 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: [Kung Fu Panda: real mantises, snakes a…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/137-kung-fu-panda-real-mantises-snakes-and-monkeys/e3/)
- next →: [Peppa Pig: what real pigs are like, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/biology/138-peppa-pig-real-pigs/t1/)
- ↑ back to [Kung Fu Panda: real mantises, snakes and monkeys](https://md.mova.elamur.ai/free/en/corpora/questions/biology/137-kung-fu-panda-real-mantises-snakes-and-monkeys/)

