Record-breakers: the biggest and the smallest
Tests: 4 of 11 right · Exam: 2 of 4 right · Kind: ★★ · Understood: 6 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 186 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 ✗
«giraffe's got loads more neck bones than me, look at it» What is right?
- 1. It has none — no support
- 2. Both have seven, the giraffe's are just much longer — ✓ the right answer · no support
- 3. It has only one — ← Mova's choice · score 3
- 4. Right, it has about seventy, one for every year of its life — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 3, the only option with support. Its support: lesson 186, line 13: «The giraffe is the tallest animal on Earth, reaches food other animals cannot, and has seven neck bones, the same number as a person.», reached through the remembered sentence the question matched. What matched: the same thing acted on «seven neck bones» (+4); the same light verb (be, have, do, get, go) (+1). Against it: the same doer «giraffe» (-2). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 2 · ★★ · wrong ✗
«biggest living thing = blue whale, done» What is right?
- 1. No, the giraffe is heavier — ← Mova's choice · no support
- 2. Right, nothing is heavier — no support
- 3. The blue whale is the biggest animal, but Pando or a giant fungus may be heavier as single living things — ✓ the right answer · no support
- 4. No, the ostrich is — 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 3 · ★★ · wrong ✗
«3 ostriches, how many toes? they got 2 on each foot btw»
- 1. 30 — ← Mova's choice · no support
- 2. 18 — no support
- 3. 6 — no support
- 4. 12 — ✓ 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 4 · ★★ · right ✓
«2 giraffes and an ostrich, how many legs»
- 1. 10 — ← Mova's choice · ✓ the right answer · no support
- 2. 8 — no support
- 3. 12 — no support
- 4. 6 — 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 ✗
«stood on an ostrich egg, it didn't break, fake right» What is right?
- 1. Ostrich eggs are made of stone and never break at all — ← Mova's choice · score 2
- 2. Right, it must be plastic — no support
- 3. Its shell is strong enough for a person to stand on — ✓ the right answer · no support
- 4. It was a melon — 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 7, line 19: «Adelie penguins build nests of stones that lift the eggs above meltwater, and because good stones are hard to find they steal them from their neighbours; pengu…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «eggs» (+2); the same circumstance (+2). Against it: a different action (counts against) (-2). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 6 · ★★ · right ✓
In Kung Fu Panda a giant panda fights. Which is the smallest mammal in this lesson?
- 1. The bumblebee bat, about two grams — ← Mova's choice · ✓ the right answer · no support
- 2. The giant panda, the star of the film itself — no support
- 3. The beaver — no support
- 4. The giraffe — 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 · ★★ · wrong ✗
What would happen to a bumblebee bat on a cold night without food?
- 1. It would grow bigger and stronger — ← Mova's choice · score 2
- 2. Nothing, tiny bodies keep their heat best of all — score 0
- 3. It would lose heat fast and be in danger — ✓ the right answer · no support
- 4. It would sweat — no support
Why: It took the question to ask which statement is true. It chose option 1 with score 2, against 0 for the next best. Its support: lesson 61, line 8: «Each flytrap can only close a few times before it dies off, so closing on nothing wastes its energy, and food that is too big, like a lump of meat, makes the t…», reached through the option's own match among the sentences about the question's things. What matched: the same property (+3). Against it: the same doer «food» (-1). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 8 · ★★ · right ✓
«a bird lays eggs the size of peas? no way» What is right?
- 1. Only snakes lay small eggs — score 4
- 2. No bird egg is smaller than a chicken's — no support
- 3. It is a beetle, not a bird — score 1
- 4. The bee hummingbird does, it is the smallest bird — ← Mova's choice · ✓ the right answer · score 5
Why: It took the question to ask which statement is true. It chose option 4 with score 5, against 4 for the next best. Its support: lesson 186, line 9: «The bee hummingbird from Cuba is the smallest bird in the world; it weighs about two grams and lays eggs the size of a pea.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «bee hummingbird» (+3); the same thing acted on «smallest bird» (+1); the same light verb (be, have, do, get, go) (+1). · the question and its options parsed, with trees and pragmatics
Test 9 · ★★ · right ✓
«a whole forest that's one tree? nah» What is right?
- 1. Pando's aspens are all one plant joined by roots — ← Mova's choice · ✓ the right answer · score 9
- 2. It is one giant mushroom — no support
- 3. It is a forest of plastic trees — no support
- 4. Right, every tree is separate — no support
Why: It took the question to ask which statement is true. It chose option 1 with score 9, the only option with support. Its support: lesson 186, line 6: «Pando in Utah is a group of aspen trees that are all one plant joined by the same roots, and it may be one of the heaviest living things on Earth.», reached through the same lesson line as the sentence the question matched. What matched: the same action «join» (+5); the same circumstance (+3); the same thing acted on «one plant» (+1). · the question and its options parsed, with trees and pragmatics
Test 10 · ★★ · wrong ✗
«jellyfish longer than a blue whale, u serious» What is right?
- 1. No jellyfish is ever longer than about one metre, even in the deep sea — ← Mova's choice · no support
- 2. It was two jellyfish tied together — no support
- 3. A lion's mane found in 1870 was longer than a blue whale — ✓ the right answer · no support
- 4. Jellyfish have no tentacles — 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 ✗
What would happen to a sequoia's seeds if there were never any forest fires?
- 1. Many cones would stay closed and fewer seeds would be released — ✓ the right answer · no support
- 2. Nothing, cones never open — score -3
- 3. The tree would grow twice as fast — no support
- 4. The cones would open in snow instead — ← Mova's choice · score 0
Why: It took the question to ask what happens next. It chose option 4 with score 0, against -3 for the next best. Its support: lesson 186, line 5: «The General Sherman tree in California is the biggest single tree by volume; sequoias live for thousands of years, have thick fire-proof bark, and their cones…», reached through the option's own match among the sentences about the question's things. What matched: the same action «open» (+1). Against it: the same doer «cones» (-1). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Exam question 1 · formal language · wrong ✗
Identify the organism recognised as the largest single tree by volume.
- 1. A baobab in Madagascar — ← Mova's choice · no support
- 2. The giant sequoia known as General Sherman, in California — ✓ the right answer · no support
- 3. An aspen in Utah standing alone — no support
- 4. An oak in England — 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 · right ✓
Which of the following statements most accurately characterises Pando?
- 1. A colony of aspen trees constituting a single plant connected by a common root system — ← Mova's choice · ✓ the right answer · no support
- 2. A forest planted by human beings in the nineteenth century for the purposes of timber and fuel — no support
- 3. A species of fungus confined to Oregon — no support
- 4. A solitary sequoia of great age — 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 ✗
State the number of cervical vertebrae, or neck bones, possessed by the giraffe, in comparison with that of a human being.
- 1. Seventy, being ten times that of a human being — ← Mova's choice · no support
- 2. One, considerably elongated — no support
- 3. Seven, identical in number to that of a human being — ✓ the right answer · no support
- 4. Fourteen, being twice that of a human being — 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 principal difficulty confronting mammals and birds of very small size.
- 1. The rapid loss of bodily heat — ← Mova's choice · ✓ the right answer · no support
- 2. An excessive requirement for large meals — no support
- 3. An inability to move — no support
- 4. Excessive bodily weight — 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/186-record-breakers-the-biggest-and-the-smallest/