The savanna: grass, trees and the great herds
Tests: 9 of 11 right · Exam: 1 of 4 right · Kind: plain · Understood: 8 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 4 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 the lion king rafiki's a mandrill, so mandrills live on the savanna» What is right?
- 1. Yes, they live in every grassland on Earth, from Africa to America — score 8
- 2. No, real mandrills live in the rainforests of central Africa — ← Mova's choice · ✓ the right answer · score 12
- 3. No, they live only in India — no support
- 4. Yes, they live on Pride Rock, just like in the film — no support
Why: It took the question to ask which statement is true. It chose option 2 with score 12, against 8 for the next best. Its support: lesson 4, line 19: «Mandrills, the monkeys with red and blue faces, live in the rainforests of central Africa, not on the open savanna.», reached through the remembered sentence the question matched. What matched: the same action «live» (+4); the same doer «mandrills» (+4); the same place «rainforests» (+4). · the question and its options parsed, with trees and pragmatics
Test 2 · right ✓
«hyenas are just thieves, they nick the lions' food» Which is the fairest answer?
- 1. Hyenas only eat plants — no support
- 2. Spotted hyenas catch most of their own food, and lions steal from them too — ← Mova's choice · ✓ the right answer · score 12
- 3. Yes, and lions never steal from hyenas, because lions are the kings of the savanna — score 3
- 4. Yes, hyenas never catch anything themselves — score 0
Why: It took the question to ask which statement is true. It chose option 2 with score 12, against 3 for the next best. Its support: lesson 4, line 13: «Spotted hyenas live in clans led by females, catch most of their own food and use whoops and giggles to talk; lions often steal from hyenas as well as the othe…», reached through the remembered sentence the question matched. What matched: the same action «catch» (+4); the same doer «spotted hyenas» (+4); the same thing acted on «most» (+4). · the question and its options parsed, with trees and pragmatics
Test 3 · right ✓
«lion's king of the jungle innit, lives in the jungle» What is right?
- 1. Lions live mainly on savanna and grassland, not in jungles — ← Mova's choice · ✓ the right answer · score 14
- 2. Lions live only in deserts — no support
- 3. Yes, and they sleep up in jungle trees — no support
- 4. Yes, lions live in the thick rainforest — no support
Why: It took the question to ask which statement is true. It chose option 1 with score 14, the only option with support. Its support: lesson 4, line 6: «Lions rest for up to about 20 hours a day, hunt mostly from dusk to dawn and live mainly on African grassland and savanna, not in jungles; a small group of Asi…», reached through the remembered sentence the question matched. What matched: the same action «live» (+4); the same place «african grassland» (+4); the same circumstance (+4); the same property (+2). · the question and its options parsed, with trees and pragmatics
Test 4 · right ✓
«ostrich got scared and stuck its head in the sand lol» What is right?
- 1. True, but only the males, to protect their eggs — no support
- 2. A myth: they actually hide their heads up in the trees — no support
- 3. True, they do it whenever they are scared — no support
- 4. A myth: ostriches lay their heads flat on the ground to hide — ← Mova's choice · ✓ the right answer · score 8
Why: It took the question to ask which statement is true. It chose option 4 with score 8, the only option with support. Its support: lesson 4, line 17: «Ostriches do not bury their heads in the sand; they lay their heads flat on the ground to hide and turn their eggs in a nest scraped in the soil.», reached through the same lesson line as the sentence the question matched. What matched: the same action «lay» (+2); the same thing acted on «heads» (+2); the same place «ground» (+2); its «because» matches the remembered cause (+2). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Test 5 · right ✓
What would happen to a cheetah that chased a gazelle for two kilometres at full speed?
- 1. It would fly the last part — no support
- 2. It could not: it tires after a few hundred metres — ← Mova's choice · ✓ the right answer · score 3
- 3. It would keep going for an hour without stopping to rest — no support
- 4. It would catch the gazelle easily at the end — 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 4, line 10: «The cheetah is the fastest land animal, reaching about 100 km per hour in short bursts, but it tires after a few hundred metres and often loses its catch to li…», reached through the same lesson line as the sentence the question matched. What matched: the same action «tire» (+2); the same circumstance (+2). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics
Test 6 · right ✓
Count them: two elephants and a giraffe at the waterhole. How many legs and how many trunks?
- 1. 12 legs and 2 trunks — ← Mova's choice · ✓ the right answer · no support
- 2. 14 legs and 2 trunks — no support
- 3. 10 legs and 2 trunks — no support
- 4. 12 legs and 3 trunks — 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 ✗
Count the toes: three ostriches stand together. How many toes on all their feet?
- 1. 18 — ← Mova's choice · no support
- 2. 30 — no support
- 3. 12 — ✓ the right answer · 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 8 · right ✓
«why'd the giraffe only eat 2 mouthfuls off that acacia and walk off» Which is the best answer?
- 1. The acacia makes its leaves bitter, and ants may attack too — ← Mova's choice · ✓ the right answer · score 4
- 2. The thorns are too long for its tongue to get round — score 3
- 3. Giraffes only eat two leaves a day — score 3
- 4. The giraffe was not hungry at all that day — no support
Why: It took the question to ask why something happens (its cause). It chose option 1 with score 4, against 3 for the next best. Its support: lesson 4, line 14: «Whistling-thorn acacias give ants homes in swollen thorns and sweet nectar, and the ants attack animals that nibble the tree, so both win; when a giraffe keeps…», reached through the same lesson line as the sentence the question matched. What matched: the same action «attack» (+2); the same doer «ants» (+2). · the question and its options parsed, with trees and pragmatics
Test 9 · right ✓
«zebra's white with black stripes, everyone knows that» Which is closest to the truth?
- 1. Under the hair its skin is dark, and every zebra's pattern is different — ← Mova's choice · ✓ the right answer · no support
- 2. Zebras can change their stripes each year — no support
- 3. All zebras have exactly the same stripes — no support
- 4. Under the hair a zebra is white, and the black stripes are just painted on — 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 10 · wrong ✗
«shut up and tell me why the giraffe's neck's so long» Which is the best answer?
- 1. It is long so the giraffe can sleep standing up without falling over — ← Mova's choice · no support
- 2. It reaches leaves high up, where other animals cannot compete — ✓ the right answer · no support
- 3. It helps the giraffe swim across rivers — no support
- 4. It is for fighting crocodiles — 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 11 · right ✓
«why do the meerkat guards scream different noises» Which is the best answer?
- 1. Different calls warn of danger from the air or from the ground — ← Mova's choice · ✓ the right answer · no support
- 2. They are singing to pass the time on guard — no support
- 3. They are calling the lions to come and eat the scorpions — no support
- 4. Each guard has only one call — 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
Exam question 1 · formal language · right ✓
Which of the following statements most accurately characterises the savanna?
- 1. The savanna is a sandy expanse wholly devoid of vegetation — no support
- 2. The savanna is a dense forest receiving precipitation upon every day of the year without exception — no support
- 3. The savanna is a cold, treeless plain adjacent to the North Pole — no support
- 4. The savanna is a warm grassland bearing scattered trees and subject to a prolonged dry season — ← Mova's choice · ✓ the right answer · score 8
Why: It took the question to ask who or what does it. It chose option 4 with score 8, the only option with support. Its support: lesson 4, line 1: «A savanna is a warm grassland with trees scattered here and there, like the plains of the Serengeti in Africa, with a long dry season and a rainy season when t…», 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 (+3); the same doer «savanna» (+2); the same thing acted on «warm grassland» (+2); the same light verb (be, have, do, get, go) (+1). · the question and its options parsed, with trees and pragmatics
Exam question 2 · formal language · wrong ✗
Identify the principal reason for the annual migration of wildebeest across the Serengeti and the Masai Mara.
- 1. The herds seek salt from the sea, which they lack upon the plains of the interior — ← Mova's choice · no support
- 2. The herds flee permanently from the crocodiles of the rivers — no support
- 3. The herds pursue the rainfall and the fresh grass which it engenders — ✓ the right answer · no support
- 4. The herds are driven by herdsmen to market — 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 cervical vertebrae of the giraffe.
- 1. The giraffe possesses fourteen cervical vertebrae — ← Mova's choice · no support
- 2. The giraffe possesses approximately fifty cervical vertebrae, owing to the length of its neck — no support
- 3. The giraffe possesses seven cervical vertebrae, being the same number as a human — ✓ the right answer · no support
- 4. The giraffe possesses a single elongated cervical vertebra — 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
Exam question 4 · formal language · wrong ✗
Ascertain the conduct of the ostrich when it seeks concealment.
- 1. The ostrich conceals its head beneath a wing — score 3
- 2. The ostrich ascends a tree — no support
- 3. The ostrich lays its head and neck flat upon the ground — ✓ the right answer · score 3
- 4. The ostrich buries its head beneath the sand — ← Mova's choice · score 5
Why: It took the question to ask which statement is true. It chose option 4 with score 5, against 3 for the next best. Its support: lesson 4, line 17: «Ostriches do not bury their heads in the sand; they lay their heads flat on the ground to hide and turn their eggs in a nest scraped in the soil.», reached through the option's own match among the sentences about the question's things. What matched: the same action «bury» (+2); the same doer «ostriches» (+2); the same thing acted on «heads» (+2); the same place «sand» (+2). Against it: one says «not», the other does not (counts against) (-3). The right option, 3, scored 3. · the question and its options parsed, with trees and pragmatics
This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/biology/4-the-savanna/