Senses of animals: how they see, hear and smell

Tests: 8 of 13 right · Exam: 3 of 4 right · Kind: ★★ · Understood: 11 of 17 · Run: 2026-10-18, commit f3c23ea72

Lesson 79 of the world 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 · ★★ · right ✓

A deer and a wolf meet in a forest. Which one can see more of the forest around it without turning its head?

1. The deer, with eyes at the sides — ← Mova's choice · ✓ the right answer · score 5
2. Neither can see without turning — no support
3. The wolf, with eyes at the front — score 5
4. Both see exactly the same — no support

Why: It took the question to ask who or what does it. It chose option 1 with score 5, tied with another option at 5 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 79, line 2: «Eyes at the front of the head, like an owl's or a cat's, both look at the same thing and judge distance well for catching prey; eyes at the sides, like a rabbi…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+4); the same doer «eyes» (+3). Against it: a different action (counts against) (-2). · the question and its options parsed, with trees and pragmatics

Test 2 · ★★ · right ✓

You find a skull of an unknown animal with large eyes facing forward. What was it most likely?

1. A hunter — ← Mova's choice · ✓ the right answer · no support
2. A grass-eater that hides from hunters — no support
3. An animal that lived only underground — no support
4. A blind cave animal — 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 3 · ★★ · right ✓

Why could a bat still catch moths in a completely dark cave?

1. Moths glow in the dark, so it can spot them easily — no support
2. It smells the dust on the moths' wings from far off — no support
3. It sees perfectly well even in total darkness — no support
4. It listens for the echoes of its own sounds — ← 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 79, line 17: «Owls hear so well that they can catch a mouse they cannot see.», reached through the cause of the sentence the question matched. What matched: the same action «hear» (+5); a different doer (counts against) (+1). · the question and its options parsed, with trees and pragmatics

Test 4 · ★★ · right ✓

A garden has a flower that looks plain white to you. Why might bees still find it very easy to spot?

1. It may have ultraviolet markings bees can see — ← Mova's choice · ✓ the right answer · score 3
2. Bees only visit plain flowers — score 3
3. Bees cannot see white at all, so they never visit — score 1
4. White flowers have no nectar — no support

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 3, tied with another option at 3 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 79, line 9: «Bees can see ultraviolet light, which people cannot see; many flowers have ultraviolet patterns that guide bees to the nectar.», 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 «bees» (+1). · the question and its options parsed, with trees and pragmatics

Test 5 · ★★ · wrong ✗

What would happen if a rattlesnake lost its heat sense?

1. It would hunt even better than before, by day and night — ← Mova's choice · no support
2. It could no longer smell anything around it at all — no support
3. It would become completely blind in bright daylight — no support
4. It would find it harder to catch prey at night — ✓ 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 6 · ★★ · right ✓

Which is true?

1. Cats need at least a little light to see — ← Mova's choice · ✓ the right answer · no support
2. Cats are blind in daylight — no support
3. Cats see perfectly well in total darkness — no support
4. Cats see only black and white shapes — no support

Why: Nothing it remembers matched the question, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Test 7 · ★★ · wrong ✗

A diver is bleeding a little in the sea. Why should they leave the water quickly?

1. Blood makes the water around it too cold — ← Mova's choice · score 3
2. Sharks can see the colour red from very far — no support
3. Blood attracts the dolphins' clicking echoes — no support
4. Sharks can smell blood from far away — ✓ the right answer · score 3

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 3, tied with another option at 3 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 20, line 4: «Salt is spread on icy roads because salty water freezes at a lower temperature than pure water; the salt dissolves in the thin wet layer on the ice and makes i…», reached through the option's own match among the sentences about the question's things. What matched: the same action «make» (+2); the same thing acted on «water» (+2). Against it: a different doer (counts against) (-1). The right option, 4, scored 3. · the question and its options parsed, with trees and pragmatics

Test 8 · ★★ · wrong ✗

Why does a dolphin hunting in muddy water not need clear eyesight?

1. It catches only fish that glow — ← Mova's choice · score 6
2. It finds fish by their echoes — ✓ the right answer · no support
3. It smells fish through its skin — no support
4. It waits for fish to touch it — no support

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 6, the only option with support. Its support: lesson 71, line 2: «Fuel needs oxygen to burn, and there is no air in space, so a rocket carries its own oxygen as well as its fuel. Big rockets are built in stages, and each empt…», reached through the cause of the sentence the question matched. What matched: the same action «burn» (+5); a different doer (counts against) (+1). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 9 · ★★ · right ✓

A puppy keeps sniffing the ground on a walk. What is it doing?

1. Reading the smells left by other animals — ← Mova's choice · ✓ the right answer · no support
2. Testing the ground for ultraviolet light — no support
3. Listening to worms under the ground — no support
4. Looking for warm spots to sleep — 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 10 · ★★ · right ✓

how does an owl get a mouse it cant even see

1. It sees in total darkness — score 3
2. It feels the mouse's heat with the tip of its beak — no support
3. It hears so well it can catch the mouse by sound — ← Mova's choice · ✓ the right answer · score 7
4. It smells the mouse from far away — score 3

Why: It took the question to ask which statement is true. It chose option 3 with score 7, against 3 for the next best. Its support: lesson 79, line 17: «Owls hear so well that they can catch a mouse they cannot see.», reached through the option's own match among the sentences about the question's things. What matched: the same action «catch» (+3); the same doer «owl» (+3); the same thing acted on «mouse» (+1). · the question and its options parsed, with trees and pragmatics

Test 11 · ★★ · wrong ✗

why's a rabbit got eyes on the sides of its head

1. So it can see ultraviolet light — ← Mova's choice · no support
2. So it can see almost all around for danger — ✓ the right answer · no support
3. So it can judge distance well for hunting — no support
4. So it can see better in total darkness — 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 12 · ★★ · right ✓

Ava says bats are blind and just bump around. true?

1. Yes, bats fly around with no way of finding food — no support
2. Yes, but only the bats that eat fruit — no support
3. No, bats find insects in the dark using echoes of their sounds — ← Mova's choice · ✓ the right answer · score 10
4. No, bats see perfectly in total darkness — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 10, the only option with support. Its support: lesson 79, line 10: «Bats find insects in the dark by making high sounds and listening to the echoes.», reached through the remembered sentence the question matched. What matched: the same action «find» (+4); the same place «dark» (+4); the same doer «bats» (+1); the same thing acted on «insects» (+1). · the question and its options parsed, with trees and pragmatics

Test 13 · ★★ · wrong ✗

my sister reckons cats can see in total darkness. right?

1. Yes, cats see just as well with no light at all — ← Mova's choice · score 6
2. No, cats see well in dim light but not in total darkness — ✓ the right answer · score 6
3. No, cats see worse than people in dim light — score 6
4. Yes, their eyes make their own light — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 6, tied with another option at 6 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 79, line 14: «Cats see much better than people in dim light, but they cannot see in total darkness.», reached through the option's own match among the sentences about the question's things. What matched: the same action «see» (+3); the same doer «cats» (+3). The right option, 2, scored 6. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · wrong ✗

Which of the following statements most accurately characterises the advantage of eyes positioned on the sides of the head?

1. They permit vision almost all around — ✓ the right answer · score 5
2. They permit vision in total darkness — no support
3. They permit the accurate judging of distance — ← Mova's choice · score 6
4. They permit vision of ultraviolet light — no support

Why: It took the question to ask who or what does it. It chose option 3 with score 6, against 5 for the next best. Its support: lesson 79, line 2: «Eyes at the front of the head, like an owl's or a cat's, both look at the same thing and judge distance well for catching prey; eyes at the sides, like a rabbi…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «distance» (+4); the same action «judge» (+2). The right option, 1, scored 5. · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · right ✓

Identify the means by which bats locate insects in the dark.

1. By smelling the insects from afar — no support
2. By making high sounds and listening to the echoes — ← Mova's choice · ✓ the right answer · score 7
3. By seeing in total darkness — no support
4. By detecting the warmth of the insects — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 7, the only option with support. Its support: lesson 79, line 10: «Bats find insects in the dark by making high sounds and listening to the echoes.», reached through a sentence linked to the one the question matched. What matched: the same action «make» (+4); the same thing acted on «high sounds» (+3). · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · right ✓

Select the response that is consistent with the established facts concerning the vision of cats.

1. They see much better than people in dim light, but not in total darkness — ← Mova's choice · ✓ the right answer · no support
2. They see perfectly in total darkness — no support
3. They see less well than people in dim light — no support
4. They see by means of echoes in the dark — 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 · right ✓

Ascertain the capacity which enables sharks to detect living animals.

1. They sense the heat of animals with their tongue — score 5
2. They sense the ultraviolet light of living animals — score 5
3. They sense the magnetism of living animals — score 5
4. They sense the weak electricity made by living animals — ← Mova's choice · ✓ the right answer · score 6

Why: It took the question to ask which statement is true. It chose option 4 with score 6, against 5 for the next best. Its support: lesson 79, line 16: «Sharks can sense the weak electricity made by living animals.», reached through the option's own match among the sentences about the question's things. What matched: the same action «make» (+3); the same circumstance (+2); the same thing acted on «weak electricity» (+1). · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/world/79-senses-of-animals/