Groups of animals and how to tell them apart

Tests: 5 of 13 right · Exam: 3 of 4 right · Kind: plain · Understood: 9 of 17 · Run: 2026-10-18, commit f3c23ea72

Lesson 24 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 · wrong ✗

A strange animal has feathers but cannot fly. Which group is it in?

1. Insects — ← Mova's choice · score 9
2. Birds — ✓ the right answer · score 8
3. Reptiles — no support
4. Mammals — score 9

Why: It took the question to ask who or what does it. It chose option 1 with score 9, tied with another option at 9 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 24, line 4: «Animals without a backbone are invertebrates: insects have six legs and three body parts (head, thorax, abdomen), while spiders have eight legs and two body pa…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+5); the same doer «insects» (+4). The right option, 2, scored 8. · the question and its options parsed, with trees and pragmatics

Test 2 · wrong ✗

A small animal has eight legs and two body parts. What is it?

1. A spider — ✓ the right answer · no support
2. A centipede — no support
3. A beetle — no support
4. An insect — ← Mova's choice · score 7

Why: It took the question to ask what it is done to. It chose option 4 with score 7, the only option with support. Its support: lesson 24, line 19: «Ants, bees, beetles and butterflies are insects; snails, worms, woodlice and scorpions have no backbone either but are not insects: a woodlouse has fourteen le…», 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 thing acted on «insects» (+3); the same light verb (be, have, do, get, go) (+1). Against it: 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 3 · wrong ✗

An animal has smooth, damp skin, lays eggs in a pond and its babies have gills. What is it?

1. A reptile — ← Mova's choice · no support
2. An amphibian — ✓ the right answer · no support
3. A mammal — no support
4. A fish — 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 4 · right ✓

An animal lives in the sea, has fur and feeds its pups milk. What is it?

1. A reptile — no support
2. A mammal — ← Mova's choice · ✓ the right answer · score 5
3. An amphibian — no support
4. A fish — no support

Why: It took the question to ask what it is done to. It chose option 2 with score 5, the only option with support. Its support: lesson 24, line 5: «A dolphin lives in the sea and has fins, but it breathes air and feeds its baby milk, so it is a mammal, not a fish.», reached through a sentence linked to the one the question matched. What matched: it fills the role the question asks for (+3); the same thing acted on «mammal» (+2); the same light verb (be, have, do, get, go) (+1). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 5 · wrong ✗

A lizard lies on a warm rock in the morning. Why?

1. It is hiding from the rain — ← Mova's choice · no support
2. It is looking for water — no support
3. It is laying its eggs there — no support
4. It takes its warmth from its surroundings — ✓ 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 statement is true?

1. All birds have feathers — ← Mova's choice · ✓ the right answer · no support
2. All fish lay eggs on land — no support
3. All birds can fly — no support
4. All mammals live on land — 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 beetle and a spider are both small. What is one difference?

1. The spider has three body parts — ← Mova's choice · score 4
2. The spider has wings, the beetle not — no support
3. The beetle has six legs, the spider eight — ✓ the right answer · no support
4. The beetle has a backbone, the spider not — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 4, the only option with support. Its support: lesson 24, line 4: «Animals without a backbone are invertebrates: insects have six legs and three body parts (head, thorax, abdomen), while spiders have eight legs and two body pa…», reached through the remembered sentence the question matched. What matched: the same doer «spiders» (+2); the same thing acted on «eight legs» (+2). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 8 · right ✓

Which pair are both vertebrates?

1. A snake and a sparrow — ← Mova's choice · ✓ the right answer · no support
2. A snail and a shark — no support
3. A worm and a whale — no support
4. A bee and a bear — 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 9 · wrong ✗

An animal has scales, dry skin and lays leathery eggs in sand. What is it?

1. An amphibian — ← Mova's choice · no support
2. A bird — no support
3. A reptile — ✓ the right answer · no support
4. A fish — 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 ✓

is a spider an insect or what

1. No, it has eight legs and two body parts — ← Mova's choice · ✓ the right answer · no support
2. No, it is a kind of reptile — no support
3. Yes, all small crawling things are insects — no support
4. Yes, it has six legs like other insects — 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 11 · wrong ✗

how can u tell a mammal

1. It has hair or fur and feeds its young milk — ✓ the right answer · score 7
2. It has feathers and lays eggs — no support
3. It has scales and breathes with gills — ← Mova's choice · score 8
4. It has six legs and a hard shell — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 8, against 7 for the next best. Its support: lesson 24, line 5: «A dolphin lives in the sea and has fins, but it breathes air and feeds its baby milk, so it is a mammal, not a fish.», reached through the same lesson line as the sentence the question matched. What matched: the same action «breathe» (+4); the same doer «dolphin» (+4). The right option, 1, scored 7. · the question and its options parsed, with trees and pragmatics

Test 12 · right ✓

Mia reckons frogs are reptiles cos they're cold-blooded. right?

1. No, frogs are amphibians with smooth, moist skin — ← Mova's choice · ✓ the right answer · score 4
2. No, frogs are fish because they swim — no support
3. Yes, all cold-blooded animals are reptiles — no support
4. Yes, frogs have dry, scaly skin — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 4, the only option with support. Its support: lesson 24, line 18: «Frogs, toads, newts and salamanders are amphibians; snakes, lizards, crocodiles and turtles are reptiles.», reached through the remembered sentence the question matched. What matched: the same doer «frogs» (+2); the same thing acted on «amphibians» (+2). · the question and its options parsed, with trees and pragmatics

Test 13 · wrong ✗

my brother says all animals with no backbone are insects. true?

1. No, insects do have a backbone — ← Mova's choice · score 3
2. Yes, every animal without a backbone is an insect — no support
3. Yes, and insects have soft backbones — score 3
4. No, spiders and many others have no backbone too — ✓ the right answer · score 3

Why: It took the question to ask which statement is true. 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 24, line 16: «Insects and spiders have no backbone; they have a hard outer skeleton.», reached through the option's own match among the sentences about the question's things. What matched: the same doer «insects» (+1); the same thing acted on «backbone» (+1); the same light verb (be, have, do, get, go) (+1). The right option, 4, scored 3. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · right ✓

Which of the following statements most accurately characterises mammals?

1. They possess feathers and lay hard-shelled eggs — score 9
2. They possess gills throughout their lives — score 9
3. They possess hair or fur and nourish their young with milk — ← Mova's choice · ✓ the right answer · score 10
4. They possess six legs and three body parts — score 9

Why: It took the question to ask who or what does it. It chose option 3 with score 10, against 9 for the next best. Its support: lesson 24, line 7: «Mammals have hair or fur and feed their young with milk.», reached through the option's own match among the sentences about the question's things. What matched: it fills the role the question asks for (+4); the same doer «mammals» (+3); the same thing acted on «hair» (+3). · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · wrong ✗

State the number of legs possessed by an insect.

1. Four — ← Mova's choice · no support
2. Six — ✓ the right answer · no support
3. Eight — no support
4. Ten — 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 · right ✓

Identify the class of animals possessing smooth, moist skin and usually depositing their eggs in water.

1. Amphibians — ← Mova's choice · ✓ the right answer · no support
2. Mammals — no support
3. Reptiles — no support
4. Birds — 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 ✓

Select the response that is consistent with the established facts concerning the bodily warmth of reptiles.

1. They derive their warmth from their surroundings — ← Mova's choice · ✓ the right answer · score 2
2. They are warmed by their feathers — no support
3. They are warmed by a layer of fur — no support
4. They generate their warmth from within — 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 24, line 17: «Mammals and birds keep their bodies warm from inside; fish, amphibians and reptiles take their warmth from their surroundings, so people often call them cold-b…», reached through the remembered sentence the question matched. What matched: the same place «surroundings» (+4); the same thing acted on «warmth» (+2). Against it: a different action (counts against) (-2); a different doer (counts against) (-2). · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/world/24-animal-groups/