Senses: nose, tongue and skin

Tests: 6 of 11 right · Exam: 2 of 4 right · Kind: plain · Understood: 10 of 15 · Run: 2026-10-18, commit f3c23ea72

Lesson 70 of the biology course of Mova's primary school, as Mova's small model took its tests: it had read this lesson and the ones before it and learned from their exercises. Each test shows the options in the order the student saw them, its choice, the right answer, the score of every option and why it chose. The lesson itself, sentence by sentence with trees and pragmatics: the lesson in the corpora.

Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: the lesson's questions in the corpora.

Test 1 · wrong ✗

my cousin says the tip of the tongue does sweet and the back does bitter. right?

1. No, only the middle can taste anything — ← Mova's choice · no support
2. Yes, but only for children — no support
3. Yes, each taste has its own area and they never mix at all — no support
4. No, that tongue map is a myth: all parts taste all five — ✓ the right answer · no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 2 · right ✓

In a cartoon a dragon eats a chilli and real flames shoot out of his mouth. What is really happening when we eat chilli?

1. Chillies are full of tiny sparks — no support
2. Chillies make the stomach catch fire — score 0
3. Chillies really heat the mouth up to the temperature of boiling water — no support
4. Capsaicin tricks heat sensors, so it feels hot but nothing burns — ← Mova's choice · ✓ the right answer · score 5

Why: It took the question to ask what happens next. It chose option 4 with score 5, against 0 for the next best. Its support: lesson 70, line 4: «Your skin is your biggest sense organ, with sensors for touch, pressure, heat, cold and pain, and some tricks fool them: a chilli feels hot though it is not, a…», reached through the option's own match among the sentences about the question's things. What matched: the same action «feel» (+2); the same doer «chilli» (+2); the same property (+1). · the question and its options parsed, with trees and pragmatics

Test 3 · wrong ✗

What would happen if you held your nose while eating a strawberry sweet?

1. It would taste far less of strawberry, mostly just sweet — ✓ the right answer · no support
2. It would taste twice as strong — no support
3. It would taste salty — no support
4. It would taste of nothing at all, not even a little bit sweet — ← Mova's choice · score 1

Why: It took the question to ask what happens next. It chose option 4 with score 1, the only option with support. Its support: lesson 69, line 3: «Inside the eye a lens, like a magnifying glass, throws an upside-down picture onto the back of the eye, and the brain turns it the right way up and even fills…», reached through the option's own match among the sentences about the question's things. What matched: the same place «all» (+2); the same circumstance (+2). Against it: a different action (counts against) (-1); a different doer (counts against) (-1). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 4 · right ✓

argh chilli!! water or milk, quick?

1. Milk helps more than water to wash the burning away — ← Mova's choice · ✓ the right answer · score 2
2. Water, loads of it, and the burning stops at once — no support
3. Blow on your tongue and it stops — no support
4. Neither, eat another chilli — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 2, the only option with support. Its support: lesson 70, line 12: «Chillies contain capsaicin, which switches on the nerve sensors that detect heat, so the mouth feels burning though nothing is hot; birds do not feel it, which…», reached through the remembered sentence the question matched. What matched: the same action «wash» (+2). · the question and its options parsed, with trees and pragmatics

Test 5 · right ✓

Why can a bird eat a chilli pepper that would make a person cry?

1. Birds swallow it so fast it cannot burn — no support
2. Birds do not feel capsaicin — ← Mova's choice · ✓ the right answer · score 2
3. Birds have fireproof stomachs — no support
4. Birds have no tongues at all — no support

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 2, the only option with support. Its support: lesson 70, line 12: «Chillies contain capsaicin, which switches on the nerve sensors that detect heat, so the mouth feels burning though nothing is hot; birds do not feel it, which…», reached through the option's own match among the sentences about the question's things. What matched: the same action «feel» (+2); the same doer «birds» (+1). Against it: a different thing acted on (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 6 · wrong ✗

Ali's friend presses two pencils on his back, close together, and he feels one. Why?

1. His back has gone to sleep — ← Mova's choice · no support
2. The back has fewer touch sensors, spread far apart — ✓ the right answer · no support
3. His friend is pressing much too softly to be felt — no support
4. Two pencils feel just the same as one — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 7 · right ✓

Why does a blind person read Braille with their fingertips and not their elbow?

1. Elbows have no skin on them — no support
2. Elbows are too far away from the eyes and the brain to read with them — no support
3. Fingertips can see the dots — no support
4. Fingertips are packed with touch sensors and feel tiny dots apart — ← Mova's choice · ✓ the right answer · score 6

Why: It took the question to ask why something happens (its cause). It chose option 4 with score 6, the only option with support. Its support: lesson 70, line 15: «Fingertips are packed with touch sensors and can feel two points just 2 to 3 millimetres apart, while on the back two points a few centimetres apart can feel l…», reached through the option's own match among the sentences about the question's things. What matched: the same circumstance (+3); the same action «pack» (+2); the same thing acted on «fingertips» (+1). · the question and its options parsed, with trees and pragmatics

Test 8 · wrong ✗

My dad cut our cat's whiskers so she looks neat. Is that ok?

1. No, it makes all her fur fall out — no support
2. Yes, whiskers are only there to make a cat look pretty — score 6
3. No, she needs whiskers to feel her way and judge gaps — ✓ the right answer · score 0
4. Yes, they help her smell better short — ← Mova's choice · score 11

Why: It took the question to ask which statement is true. It chose option 4 with score 11, against 6 for the next best. Its support: lesson 70, line 18: «Cat whiskers are thick, deep-rooted hairs with many nerve endings that sense touch and tiny movements of air, and they help a cat judge whether it can fit thro…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «whiskers» (+5); the same action «help» (+4); the same thing acted on «cat» (+2). The right option, 3, scored 0. · the question and its options parsed, with trees and pragmatics

Test 9 · right ✓

In a game your hero tastes poison and the bitter warning shows on screen. Why is a bitter taste useful in real life?

1. Many poisons are bitter, so bitterness can warn us — ← Mova's choice · ✓ the right answer · score 7
2. Bitter means the food is sweet inside — no support
3. Bitter things are always healthy, so we should eat more of them — no support
4. Bitter taste makes food go down faster — no support

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 7, the only option with support. Its support: lesson 70, line 9: «Taste buds sense five basic tastes: sweet, salty, sour, bitter and umami, the savoury taste of cheese and tomatoes; many poisons taste bitter, so bitterness ca…», reached through a sentence linked to the one the question matched. What matched: the same action «warn» (+3); its «because» matches the remembered cause (+3); the same doer «bitterness» (+1). · the question and its options parsed, with trees and pragmatics

Test 10 · right ✓

piss off with the mint gum, my mouth's freezing. is it actually colder??

1. Yes, mint drops your mouth to below freezing — score 5
2. No, it is actually much hotter — no support
3. Yes, gum is made of ice — no support
4. No, menthol just switches on your cold sensors — ← Mova's choice · ✓ the right answer · score 7

Why: It took the question to ask which statement is true. It chose option 4 with score 7, against 5 for the next best. Its support: lesson 70, line 12: «Chillies contain capsaicin, which switches on the nerve sensors that detect heat, so the mouth feels burning though nothing is hot; birds do not feel it, which…», reached through the same lesson line as the sentence the question matched. What matched: the same action «switch» (+4); the same place «nerve sensors» (+3). · the question and its options parsed, with trees and pragmatics

Test 11 · wrong ✗

A sniffer dog at the airport sits down beside a bag. Why trust its nose?

1. Dogs can read the labels on bags — score 0
2. Dogs have hundreds of millions of smell cells, far more than us — ✓ the right answer · no support
3. Dogs just guess and are often lucky — no support
4. Dogs can see inside bags — ← Mova's choice · score 3

Why: It took the question to ask why something happens (its cause). It chose option 4 with score 3, against 0 for the next best. Its support: lesson 24, line 16: «Dogs see mostly blues and yellows because they have two kinds of colour cells instead of our three, so red and green look much alike to them.», reached through the option's own match among the sentences about the question's things. What matched: the same action «see» (+2); the same doer «dogs» (+1). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · right ✓

Identify the principal reason for which food appears tasteless when the nasal passages are obstructed.

1. The food loses its chemical content — no support
2. Flavour depends largely upon smell, which cannot reach the smell cells — ← Mova's choice · ✓ the right answer · score 6
3. The saliva is no longer produced — no support
4. The taste buds cease to function whenever the nasal passages are obstructed — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 6, the only option with support. Its support: lesson 70, line 7: «Much of flavour is smell: when the nose is blocked, food smells cannot reach the smell cells at the back of the nose, so food seems to taste of nothing.», reached through a sentence linked to the one the question matched. What matched: the same action «reach» (+2); the same doer «food smells» (+2); the same thing acted on «smell cells» (+2). · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · right ✓

It is asserted that each region of the tongue perceives a single basic taste. Select the response consistent with the established facts.

1. The assertion is false; all regions bearing taste buds perceive all five — ← Mova's choice · ✓ the right answer · no support
2. The assertion is true without exception in all persons of whatever age — no support
3. The assertion is true in adults only — no support
4. The assertion is true for sweetness only — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · wrong ✗

Which of the following statements most accurately characterises the sensation produced by capsaicin?

1. It raises the temperature of the mouth to boiling point — ← Mova's choice · no support
2. It activates the sensors for heat without raising the temperature — ✓ the right answer · no support
3. It destroys the taste buds upon contact — no support
4. It activates the sensors for cold — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Exam question 4 · formal language · wrong ✗

Ascertain the reason for which lukewarm water feels cool to a hand previously immersed in warm water.

1. Warm water damages the sensors for cold — ← Mova's choice · no support
2. The skin perceives temperature relative to its preceding state — ✓ the right answer · no support
3. The hand loses all sensation in warm water — no support
4. The water is itself cooled upon contact with the warmer hand — no support

Why: No option found support in what it remembers, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/biology/70-senses-nose-tongue-and-skin/