The rainforest from the top: emergent layer and canopy
Tests: 7 of 11 right · Exam: 2 of 4 right · Kind: plain · Understood: 7 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 2 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 ✓
«King Louie's an orangutan in India in the Jungle Book so they live in India yeah» What is right?
- 1. Yes, and they also rule old temples there, just like King Louie — no support
- 2. Yes, India is their main home, as in the film — no support
- 3. No, wild orangutans live only on Borneo and Sumatra — ← Mova's choice · ✓ the right answer · score 8
- 4. No, they live only in Africa — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 8, the only option with support. Its support: lesson 2, line 5: «In The Jungle Book, King Louie the orangutan rules a ruined temple in an Indian jungle; real orangutans live only on the islands of Borneo and Sumatra, and the…», reached through the remembered sentence the question matched. What matched: the same action «live» (+4); the same doer «real orangutans» (+4). · the question and its options parsed, with trees and pragmatics
Test 2 · wrong ✗
«ugh sloths are so lazy, just get a move on» Which is the best answer?
- 1. Their leaf food gives little energy, and moving slowly saves it and hides them — ✓ the right answer · score 3
- 2. They are fast at night when we do not see them — no support
- 3. Sloths move slowly because they are very old, and the young ones run about all day — ← Mova's choice · score 8
- 4. Sloths are ill, healthy ones run fast — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 8, against 3 for the next best. Its support: lesson 2, line 9: «Three-toed sloths hang by long curved claws, eat leaves that give little energy, move only a few metres a minute, which saves energy and helps them hide from e…», reached through the remembered sentence the question matched. What matched: the same action «move» (+4); the same doer «toed sloths» (+4). The right option, 1, scored 3. · the question and its options parsed, with trees and pragmatics
Test 3 · right ✓
What would happen to the frogs of a tree if every bromeliad on it were cut off?
- 1. Some frogs would lose the pools where their tadpoles grow — ← Mova's choice · ✓ the right answer · score 2
- 2. Nothing, the tadpoles would live in the soil — score 2
- 3. The frogs would grow bigger without them — score 2
- 4. The tadpoles would move into the toucan's beak and grow up there — score 2
Why: It took the question to ask what happens next. 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 1, line 17: «A frog needs two habitats: its tadpoles live in water and breathe with gills, while adult frogs hunt insects on damp land, so losing ponds means losing frogs.», reached through what followed the sentence the question matched. What matched: the same action «lose» (+4). Against it: a different thing acted on (counts against) (-2). · the question and its options parsed, with trees and pragmatics
Test 4 · wrong ✗
«my bro reckons the morpho's covered in blue powder like paint» What is right?
- 1. No, it is blue because it reflects the sky — ← Mova's choice · no support
- 2. Yes, it gets the paint from blue berries that it eats every day — no support
- 3. No, its blue comes from the shape of tiny ridges on the scales — ✓ the right answer · no support
- 4. Yes, it is blue powder that rubs off on your fingers — 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 · right ✓
«the toucan's beak must weigh a ton, how does it fly lol» Which is the best answer?
- 1. It is solid but the toucan is very strong — no support
- 2. The toucan cannot fly at all, it only hops — no support
- 3. The beak is full of air like a balloon, so it lifts the toucan up as it flies — no support
- 4. The beak is a light honeycomb of bone inside a thin keratin cover — ← Mova's choice · ✓ the right answer · score 16
Why: It took the question to ask what something is like. It chose option 4 with score 16, the only option with support. Its support: lesson 2, line 12: «A toucan's huge beak is light because it is a honeycomb of bone covered with keratin; it reaches fruit on thin twigs and also lets the bird lose heat, like a r…», reached through the remembered sentence the question matched. What matched: the same thing acted on «honeycomb» (+5); the same circumstance (+5); the same doer «beak» (+3); the same light verb (be, have, do, get, go) (+3). · the question and its options parsed, with trees and pragmatics
Test 6 · right ✓
«howler monkey's dead loud, like a lion or what» Which is closest to the truth?
- 1. It is one of the loudest land animals, heard about 5 km away — ← Mova's choice · ✓ the right answer · no support
- 2. It is quieter than a cat — no support
- 3. It is loud only when it is hurt — no support
- 4. It is the loudest animal in the whole sea, heard 500 km away — 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 ✗
In a Tarzan cartoon, an eagle is shown flying over an empty, sunny forest floor. Where would a real harpy eagle hunt?
- 1. Only in open grassland, far from trees — ← Mova's choice · no support
- 2. Through the canopy, swooping from the tallest trees — ✓ the right answer · no support
- 3. Over the sea, catching fish — no support
- 4. Only on the ground among roots — 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 · right ✓
«we cut down the forest and the rain'll still come, it's the tropics innit» What is the clever answer?
- 1. The trees make much of the rain, so cutting them can make it drier — ← Mova's choice · ✓ the right answer · score 5
- 2. Yes, rain never changes in the tropics — no support
- 3. Rain comes only from the sea, so the trees do not matter at all for it — no support
- 4. Cutting trees makes it rain more — score 3
Why: It took the question to ask which statement is true. It chose option 1 with score 5, against 3 for the next best. Its support: lesson 2, line 19: «Trees release so much water from their leaves that the Amazon makes much of its own rain, so cutting down the forest can make the region drier.», reached through a sentence linked to the one the question matched. What matched: the same action «make» (+2); the same doer «cutting» (+2); its «because» matches the remembered cause (+2). Against it: a different thing acted on (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Test 9 · wrong ✗
How many toes are on the front feet of a three-toed sloth, both feet together?
- 1. 4 — ← Mova's choice · no support
- 2. 9 — no support
- 3. 6 — ✓ the right answer · no support
- 4. 3 — 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 ✓
«gibbon's a monkey, it's got a long tail for swinging, right» What is right?
- 1. No, a gibbon is a small ape with no tail; it swings with its long arms — ← Mova's choice · ✓ the right answer · score 7
- 2. No, it is a kind of sloth — no support
- 3. Yes, it is a monkey with a short tail — score 4
- 4. Yes, it swings by its long tail — score 6
Why: It took the question to ask which statement is true. It chose option 1 with score 7, against 6 for the next best. Its support: lesson 2, line 18: «Gibbons are small apes with very long arms and no tail; they swing arm over arm through the canopy, which is called brachiation; they are reported to reach abo…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «gibbons» (+2); the same thing acted on «small apes» (+2); the same circumstance (+2); the same light verb (be, have, do, get, go) (+1). · the question and its options parsed, with trees and pragmatics
Test 11 · right ✓
«that fig tree's eating the other tree?? that's well creepy» What is right?
- 1. The fig grows round its host from the top down, and the host may die inside — ← Mova's choice · ✓ the right answer · no support
- 2. The fig eats wood with its roots like teeth — no support
- 3. Nothing happens to the host tree at all — no support
- 4. The two trees join and become one kind of tree — 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 1 · formal language · right ✓
Which of the following statements most accurately characterises the rainforest canopy?
- 1. The canopy constitutes the dense upper stratum of foliage and branches, situated approximately thirty to forty-five metres above the ground — ← Mova's choice · ✓ the right answer · no support
- 2. The canopy constitutes the isolated giant trees projecting above all others — no support
- 3. The canopy constitutes the forest floor beneath the trees, upon which little light falls and few plants are able to grow — no support
- 4. The canopy constitutes the river system traversing the forest — 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 ✗
Identify the principal reason for which the three-toed sloth moves with such deliberation.
- 1. Its limbs are habitually injured by the prolonged suspension of the body from branches — ← Mova's choice · no support
- 2. It is incapable of perceiving its surroundings — no support
- 3. Its diet of foliage yields little energy, and stillness furthermore assists its concealment — ✓ the right answer · no support
- 4. It is perpetually asleep throughout daylight — 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 ✗
Select the response consistent with the established facts concerning the distribution of orangutans in the wild.
- 1. Orangutans are confined exclusively to the islands of Borneo and Sumatra — ✓ the right answer · no support
- 2. Orangutans inhabit every tropical rainforest upon the Earth — ← Mova's choice · score 4
- 3. Orangutans inhabit the forests of the Indian subcontinent — score 4
- 4. Orangutans are native to the Amazon basin — no support
Why: It took the question to ask which statement is true. It chose option 2 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 2, line 5: «In The Jungle Book, King Louie the orangutan rules a ruined temple in an Indian jungle; real orangutans live only on the islands of Borneo and Sumatra, and the…», reached through the option's own match among the sentences about the question's things. What matched: the same action «live» (+2); the same doer «real orangutans» (+2). The right option, 1, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Exam question 4 · formal language · right ✓
Ascertain the origin of the blue colouration exhibited by the wings of the blue morpho.
- 1. Minute ridges upon the wing scales reflect blue light exclusively — ← Mova's choice · ✓ the right answer · no support
- 2. A blue pigment derived from the nectar of flowers — no support
- 3. The reflection of the sky upon transparent wings — no support
- 4. A blue powder deposited upon the wings by rainfall — 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
This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/biology/2-the-rainforest-from-the-top/