Dinosaurs: kinds, sizes and how they lived

Tests: 7 of 11 right · Exam: 0 of 4 right · Kind: plain · Understood: 9 of 15 · Run: 2026-10-18, commit f3c23ea72

Lesson 75 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 · right ✓

In a film, huge scaly Velociraptors as tall as a man open doors. What is right?

1. Velociraptor was even bigger, the size of a T. rex — no support
2. Real Velociraptor was turkey-sized and feathered — ← Mova's choice · ✓ the right answer · score 7
3. Velociraptor was a flying reptile — no support
4. That is exactly what Velociraptor was like, the film got it right — 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 75, line 4: «Films and cartoons get a lot wrong: real Velociraptor was turkey-sized and feathered, pterosaurs and plesiosaurs were not dinosaurs at all, and no person ever…», reached through the option's own match among the sentences about the question's things. What matched: the same property (+3); the same doer «real velociraptor» (+2); the same light verb (be, have, do, get, go) (+2). · the question and its options parsed, with trees and pragmatics

Test 2 · right ✓

«T. rex had tiny arms coz it was weak, lol» What is right?

1. No, T. rex had long arms for climbing trees — no support
2. Yes, T. rex was too weak to hunt anything and only ate dead animals — no support
3. Its arms were short but strong; its huge jaws did the hunting — ← Mova's choice · ✓ the right answer · score 10
4. Yes, T. rex arms could not even lift a pencil — score 0

Why: It took the question to ask which statement is true. It chose option 3 with score 10, against 0 for the next best. Its support: lesson 41, line 14: «Most starfish have 5 arms with a simple eye at the tip of each, some sun stars have 20 or more, and a starfish can slowly regrow a lost arm, which is why one a…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «one arm» (+5); the same property (+3); the same light verb (be, have, do, get, go) (+2). · the question and its options parsed, with trees and pragmatics

Test 3 · right ✓

«pterodactyls are flying dinosaurs innit» What is right?

1. Yes, and they were the first birds — no support
2. No, they were giant bats — no support
3. Yes, every flying reptile was a dinosaur, and pterosaurs were the biggest ones — no support
4. Pterosaurs were flying reptiles, not dinosaurs; birds are the flying dinosaurs — ← Mova's choice · ✓ the right answer · score 9

Why: It took the question to ask which statement is true. It chose option 4 with score 9, the only option with support. Its support: lesson 75, line 11: «Pterosaurs such as Quetzalcoatlus, with a wingspan of about 10 metres, had wings of skin on one long finger and were not dinosaurs; neither were plesiosaurs, i…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «birds» (+5); the same thing acted on «flying dinosaurs» (+2); the same light verb (be, have, do, get, go) (+2). · the question and its options parsed, with trees and pragmatics

Test 4 · right ✓

«T. rex vs Spinosaurus, who won the fight» What is true?

1. They never met: different continents, millions of years apart — ← Mova's choice · ✓ the right answer · no support
2. They were best friends in the same swamp — no support
3. Spinosaurus won every time — no support
4. T. rex won every time because it had the stronger bite of the two — 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 5 · wrong ✗

What would happen to a dinosaur egg as big as a car?

1. It would hatch a baby twice the size of any other dinosaur ever seen — ← Mova's choice · score 4
2. Nothing, big eggs are best — no support
3. It would roll away and hatch on its own — score 4
4. The shell would be too thick for the baby to break out — ✓ the right answer · no support

Why: It took the question to ask which statement is true. It chose option 1 with score 4, tied with another option at 4 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 75, line 12: «All dinosaurs hatched from eggs; even the biggest eggs were only about the size of a football, because a much bigger egg would need a shell too thick for the b…», reached through the remembered sentence the question matched. What matched: the same thing acted on «size» (+5). Against it: the same doer «biggest eggs» (-1). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 6 · right ✓

«Stegosaurus and T. rex were mates, saw it in a cartoon» What is right?

1. Stegosaurus came after T. rex — score 1
2. They lived at the same time and in the same place, just like the cartoon — no support
3. Stegosaurus lived longer before T. rex than T. rex lived before us — ← Mova's choice · ✓ the right answer · score 10
4. They both lived only 1,000 years ago — score 7

Why: It took the question to ask which statement is true. It chose option 3 with score 10, against 7 for the next best. Its support: lesson 75, line 16: «The first humans of our kind appeared only about 300,000 years ago, and Stegosaurus lived longer before T. rex than T. rex lived before us.», reached through the option's own match among the sentences about the question's things. What matched: the same place «t. rex» (+3); the same property (+3); the same action «live» (+2); the same doer «stegosaurus» (+2). · the question and its options parsed, with trees and pragmatics

Test 7 · wrong ✗

Why might a huge sauropod want to stand still while eating?

1. Its neck fell off if it walked — ← Mova's choice · no support
2. It could only eat with its legs locked — no support
3. It was too lazy to walk anywhere once it had found food — no support
4. Moving such a heavy body costs a lot of energy — ✓ 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 8 · wrong ✗

«all dinosaurs were massive, end of» What is right?

1. Many were small, like the chicken-sized Compsognathus — ✓ the right answer · no support
2. Yes, the smallest dinosaur was about the size of an elephant — ← Mova's choice · score 7
3. No, all dinosaurs were tiny — no support
4. Yes, every dinosaur was longer than a bus — score 5

Why: It took the question to ask which statement is true. It chose option 2 with score 7, against 5 for the next best. Its support: lesson 75, line 12: «All dinosaurs hatched from eggs; even the biggest eggs were only about the size of a football, because a much bigger egg would need a shell too thick for the b…», reached through the same lesson line as the sentence the question matched. What matched: the same property (+3); the same thing acted on «size» (+2); the same light verb (be, have, do, get, go) (+2). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 9 · wrong ✗

A plant-eater with armour plates even on its eyelids and a club on its tail. Which is it?

1. Stegosaurus — ← Mova's choice · no support
2. Triceratops — no support
3. Diplodocus — no support
4. Ankylosaurus — ✓ 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 10 · right ✓

«dinosaurs had live babies like us» What is right?

1. Yes, dinosaurs had no eggs at all — no support
2. All dinosaurs hatched from eggs; fossil nests are found worldwide — ← Mova's choice · ✓ the right answer · score 5
3. Yes, only the very biggest ones laid eggs, the rest had live babies — no support
4. No, they grew from seeds — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 5, the only option with support. Its support: lesson 75, line 12: «All dinosaurs hatched from eggs; even the biggest eggs were only about the size of a football, because a much bigger egg would need a shell too thick for the b…», reached through the option's own match among the sentences about the question's things. What matched: the same action «hatch» (+2); the same doer «dinosaurs» (+2); the same circumstance (+1). · the question and its options parsed, with trees and pragmatics

Test 11 · right ✓

«shut up, the ocean dinos like plesiosaurs were the biggest dinosaurs» What is right?

1. Plesiosaurs were sea reptiles, not dinosaurs; sauropods were the biggest — ← Mova's choice · ✓ the right answer · score 2
2. Yes, plesiosaurs were the biggest dinosaurs, bigger than any on land — score 2
3. No, the biggest dinosaur was Velociraptor — no support
4. Yes, all sea reptiles were dinosaurs — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 2, tied with another option at 2 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 75, line 4: «Films and cartoons get a lot wrong: real Velociraptor was turkey-sized and feathered, pterosaurs and plesiosaurs were not dinosaurs at all, and no person ever…», reached through the option's own match among the sentences about the question's things. What matched: the same doer «pterosaurs» (+2); the same light verb (be, have, do, get, go) (+2); the same thing acted on «dinosaurs» (+1). Against it: one says «not», the other does not (counts against) (-3). · 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 dimensions and integument of Velociraptor?

1. It was approximately the size of a mouse and covered in fur — ← Mova's choice · no support
2. It was approximately the size of a turkey and was covered in feathers — ✓ the right answer · no support
3. It was approximately the size of a horse and was covered in thick scales — no support
4. It was approximately the size of a bus and covered in plates — 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 2 · formal language · wrong ✗

Select the response consistent with the established facts concerning the classification of the pterosaurs.

1. The pterosaurs were the direct ancestors of all modern birds — no support
2. The pterosaurs were flying mammals related to the bats — no support
3. The pterosaurs were feathered dinosaurs belonging to the theropod group — ← Mova's choice · score 2
4. The pterosaurs were flying reptiles distinct from the dinosaurs — ✓ the right answer · score 1

Why: It took the question to ask which statement is true. It chose option 3 with score 2, against 1 for the next best. Its support: lesson 75, line 11: «Pterosaurs such as Quetzalcoatlus, with a wingspan of about 10 metres, had wings of skin on one long finger and were not dinosaurs; neither were plesiosaurs, i…», reached through the option's own match among the sentences about the question's things. What matched: the same doer «pterosaurs» (+2); the same light verb (be, have, do, get, go) (+2); the same thing acted on «dinosaurs» (+1). Against it: one says «not», the other does not (counts against) (-3). The right option, 4, scored 1. · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · wrong ✗

Identify the defensive structure situated at the terminus of the tail of Ankylosaurus.

1. Four elongated spikes — ← Mova's choice · no support
2. A fan of long feathers — no support
3. A heavy bony club — ✓ the right answer · no support
4. A tall sail of skin — 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 ✗

Determine the approximate interval during which the dinosaurs inhabited the Earth.

1. From approximately two thousand three hundred to six hundred and sixty years before the present — ← Mova's choice · no support
2. From approximately two hundred and thirty to sixty-six million years before the present — ✓ the right answer · no support
3. From approximately two hundred and thirty thousand years ago to the present — no support
4. From approximately twenty-three to six million years before the present — 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/75-dinosaurs-kinds-sizes-and-lives/