Borneo: orangutans, proboscis monkeys, the biggest flower and gliding snakes
Tests: 4 of 11 right · Exam: 1 of 4 right · Kind: plain · Understood: 6 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 161 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 ✗
«my cousin says rafflesia smells lovely like roses» What is right?
- 1. No, it smells of rotting meat to attract flies — ✓ the right answer · score 4
- 2. No, it has no smell at all — no support
- 3. Yes, it is the sweetest-smelling flower in the world, like roses — ← Mova's choice · score 6
- 4. Yes, bees love its smell — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 6, against 4 for the next best. Its support: lesson 161, line 7: «Rafflesia arnoldii has the biggest single flower in the world, up to about a metre across, and it smells of rotting meat to attract flies that carry its pollen.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «biggest single flower» (+3); the same place «world» (+3). The right option, 1, scored 4. · the question and its options parsed, with trees and pragmatics
Test 2 · wrong ✗
«saw 3 orangutans in the zoo vid, how many arms is that lol»
- 1. 3 — ← Mova's choice · no support
- 2. 6 — ✓ the right answer · no support
- 3. 12 — no support
- 4. 9 — 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 ✓
«moonrat, so it's a rat innit» What is right?
- 1. Yes, a rat that lives on the moon — no support
- 2. No, it is a cousin of the hedgehog — ← Mova's choice · ✓ the right answer · score 3
- 3. Yes, the biggest rat in Asia — no support
- 4. No, it is a kind of monkey — no support
Why: It took the question to ask which statement is true. It chose option 2 with score 3, the only option with support. Its support: lesson 161, line 12: «The moonrat smells strongly of garlic or onion, and despite its name it is not a rat but a cousin of the hedgehog.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «rat» (+3); the same light verb (be, have, do, get, go) (+2). Against it: one says «not», the other does not (counts against) (-2). · the question and its options parsed, with trees and pragmatics
Test 4 · right ✓
In a cartoon a snake flies by flapping like a bird. What is real for Borneo's snakes?
- 1. They really do flap like birds — no support
- 2. They glide on big leaves, using them like surfboards — no support
- 3. They glide by flattening their bodies, they cannot flap — ← Mova's choice · ✓ the right answer · score 5
- 4. No snake ever leaves the ground — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 5, the only option with support. Its support: lesson 161, line 10: «Paradise tree snakes flatten their bodies and wriggle in the air to glide from tree to tree; Borneo also has gliding frogs, lizards and squirrels, perhaps beca…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «bodies» (+3); the same action «flatten» (+2). · the question and its options parsed, with trees and pragmatics
Test 5 · wrong ✗
What would happen if a hornbill mum's tree hole had no mud wall?
- 1. Nothing at all, because the mud is only there as decoration — ← Mova's choice · no support
- 2. She could not lay any eggs — no support
- 3. She would get too hot — no support
- 4. Snakes and monkeys could reach her and her chick — ✓ 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 · wrong ✗
A girl finds a big flower with no leaves and no stem growing out of a vine. What is most likely true?
- 1. It is a fake flower made of plastic — score 3
- 2. It has fallen off a tree — no support
- 3. It makes all its own food from sunlight in its big red petals — ← Mova's choice · score 5
- 4. It is a parasite getting its food from the vine — ✓ the right answer · no support
Why: It took the question to ask which statement is true. It chose option 3 with score 5, against 3 for the next best. Its support: lesson 131, line 9: «Some ground sloths were enormous: Megatherium was as big as an elephant, stood on its back legs to reach leaves and walked on the sides of its clawed feet.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «leaves» (+3); the same action «reach» (+2). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 7 · wrong ✗
«why do they need a new bed every night, lazy to clean or what» Which reason fits best?
- 1. They eat their beds for breakfast — ← Mova's choice · no support
- 2. They are scared of their old beds — no support
- 3. Their beds always fall down by the morning, so they need new ones — no support
- 4. They move around to find food, so they sleep where they end up — ✓ 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 · right ✓
«2 proboscis monkeys n a clouded leopard in a tree, how many tails»
- 1. 3 — ← Mova's choice · ✓ the right answer · no support
- 2. 2 — no support
- 3. 1 — 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 9 · right ✓
Which animal would be best at climbing down a tree trunk head first?
- 1. A proboscis monkey's baby — no support
- 2. A moonrat on the forest floor — no support
- 3. A Bornean pygmy elephant — no support
- 4. A clouded leopard — ← Mova's choice · ✓ the right answer · score 7
Why: It took the question to ask who or what does it. It chose option 4 with score 7, the only option with support. Its support: lesson 52, line 15: «Grey wolves hunt in family packs, chasing deer, elk or moose over long distances; they are built for stamina rather than speed, and they often pick out a young…», 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 «young animal» (+3). · the question and its options parsed, with trees and pragmatics
Test 10 · wrong ✗
«bloody hell that pitcher's full of dead flies, what's it doing» What is right?
- 1. Using them as decoration — ← Mova's choice · no support
- 2. Digesting them for food — ✓ the right answer · no support
- 3. Nothing, they just fell in by chance — no support
- 4. Saving them for birds to eat later — 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 ✗
If Borneo's forest were cleared, what would happen to animals like orangutans that live nowhere else?
- 1. They would turn into new kinds of animals at once and live on the ground — ← Mova's choice · score 4
- 2. They would move to the Arctic — score 4
- 3. They would have nowhere else to go and could die out — ✓ the right answer · score 4
- 4. Nothing, they live in cities too — score 4
Why: It took the question to ask what happens next. 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 77, line 9: «Orangutans live only on Borneo and Sumatra and are critically endangered, as their forest is cut for timber and palm oil; a mother stays with her baby for abou…», reached through what followed the sentence the question matched. What matched: the same doer «orangutans» (+4). The right option, 3, scored 4. · the question and its options parsed, with trees and pragmatics
Exam question 1 · formal language · wrong ✗
Select the response consistent with the established facts concerning the nutrition of Rafflesia arnoldii.
- 1. It absorbs nutrients from the soil through an extensive root system of its own — ← Mova's choice · no support
- 2. It photosynthesises by means of extensive foliage — no support
- 3. It captures insects within a fluid-filled pitcher — no support
- 4. It derives its nourishment as a parasite within a host vine — ✓ 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
Exam question 2 · formal language · right ✓
Identify the principal function attributed to the enlarged nose of the male proboscis monkey.
- 1. The amplification of its vocal calls — ← Mova's choice · ✓ the right answer · no support
- 2. The excavation of edible roots — no support
- 3. The facilitation of breathing whilst submerged — no support
- 4. The detection of fruit at great distances — 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 ✗
Which of the following statements most accurately characterises the nesting behaviour of the orangutan?
- 1. A single nest is occupied throughout the whole of life — ← Mova's choice · no support
- 2. No nest is constructed under any circumstances — no support
- 3. A fresh nest of woven branches is constructed every night — ✓ the right answer · no support
- 4. Nests are constructed upon the ground beneath the trees — 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 ✗
Ascertain the reason for which the female rhinoceros hornbill encloses herself within a tree cavity.
- 1. Avoidance of heavy rainfall during the monsoon — ← Mova's choice · no support
- 2. Concealment from the male of her species — no support
- 3. Protection of herself and her offspring from predators such as snakes and monkeys — ✓ the right answer · no support
- 4. Escape from the heat of the midday sun — 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/161-borneo-orangutans-proboscis-monkeys-and-the-biggest-flower/