Deer: antlers that fall off and grow again; red deer, roe deer, moose, muntjac and water deer

Tests: 5 of 12 right · Exam: 2 of 4 right · Kind: ★★ · Understood: 13 of 16 · Run: 2026-10-18, commit f3c23ea72

Lesson 318 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 ✗

«found a deer horn in the woods!!» What is it more likely to be?

1. A deer's leg bone — ← Mova's choice · no support
2. A horn that fell off a cow that got lost in the woods — no support
3. A tooth from a moose — no support
4. A shed antler; deer drop their antlers every year — ✓ 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 2 · ★★ · wrong ✗

Count them: a royal stag has twelve points. How many points do 3 royal stags have together?

1. 12 — ← Mova's choice · score 1
2. 24 — score 1
3. 15 — score 1
4. 36 — ✓ the right answer · score 1

Why: It took the question to ask what it is done to. It chose option 1 with score 1, tied with another option at 1 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 7, line 10: «The leopard seal, about 3.5 metres long, eats krill, fish, penguins and other seals, and its back teeth lock together like a sieve to strain krill.», reached through the remembered sentence the question matched. What matched: the same doer «back teeth» (+1). The right option, 4, scored 1. · the question and its options parsed, with trees and pragmatics

Test 3 · ★★ · right ✓

Count them: a park has 5 red deer stags and 4 hinds. Only stags grow antlers. How many antlers are there in summer?

1. 10 — ← Mova's choice · ✓ the right answer · no support
2. 8 — no support
3. 18 — 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 4 · ★★ · wrong ✗

Count them: 4 reindeer pull a sledge, 2 males and 2 females. In summer both sexes grow antlers. How many antlers are there?

1. 4 — ← Mova's choice · no support
2. 6 — no support
3. 8 — ✓ the right answer · no support
4. 2 — 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 ✓

On a Christmas card Rudolph and the other reindeer pull Santa's sleigh in late December with big antlers. What do some people joke?

1. Reindeer grow new antlers just for Christmas — score 4
2. Only male reindeer grow antlers — score 4
3. They must be red deer dressed up in reindeer costumes for the Christmas card — no support
4. Males drop antlers in early winter, so they may be females or young ones — ← 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 318, line 17: «Reindeer are the only deer in which both males and females grow antlers; males drop theirs in early winter, while females keep theirs through the winter.», reached through the option's own match among the sentences about the question's things. What matched: the same action «drop» (+3); the same doer «males» (+1); the same property (+1). · the question and its options parsed, with trees and pragmatics

Test 6 · ★★ · right ✓

In Bambi, the old stag has big antlers but Bambi's mother has none. Is the film right?

1. Yes, in most deer only males grow antlers — ← Mova's choice · ✓ the right answer · score 8
2. No, no deer has antlers — score 3
3. No, all female deer have antlers — score 3
4. Yes, but only because she lost them in the snow — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 8, against 3 for the next best. Its support: lesson 318, line 17: «Reindeer are the only deer in which both males and females grow antlers; males drop theirs in early winter, while females keep theirs through the winter.», reached through the option's own match among the sentences about the question's things. What matched: the same place «only deer» (+4); the same action «grow» (+3); the same doer «males» (+1). · the question and its options parsed, with trees and pragmatics

Test 7 · ★★ · right ✓

«heard a dog barking in the woods at midnight, nobody's dog was out» What could it be?

1. A muntjac or a roe deer, which both bark — ← Mova's choice · ✓ the right answer · score 2
2. A moose singing — no support
3. A rabbit growling — no support
4. A wolf in disguise — score -3

Why: It took the question to ask what it is done to. It chose option 1 with score 2, against -3 for the next best. Its support: lesson 318, line 4: «Deer come in all sizes, from the moose, taller than a grown man at the shoulder, to the little muntjac that barks like a dog in English woods at night.», reached through the remembered sentence the question matched. What matched: the same action «bark» (+1); the same doer «little muntjac» (+1). · the question and its options parsed, with trees and pragmatics

Test 8 · ★★ · right ✓

«mate says it's a vampire deer cos it has fangs lol» What is it really?

1. A Chinese water deer, whose males have long fangs instead of antlers — ← Mova's choice · ✓ the right answer · score 6
2. A deer that creeps out at night and drinks the blood of sheep and cows — score 3
3. A cartoon animal that is not real — score 5
4. A muntjac with broken antlers — score 2

Why: It took the question to ask what it is done to. It chose option 1 with score 6, against 5 for the next best. Its support: lesson 318, line 17: «Reindeer are the only deer in which both males and females grow antlers; males drop theirs in early winter, while females keep theirs through the winter.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «males» (+4); the same circumstance (+2). · the question and its options parsed, with trees and pragmatics

Test 9 · ★★ · wrong ✗

What would happen if a stag's antler velvet were badly torn while the antler was still growing?

1. The stag would stop growing for ever — ← Mova's choice · score 6
2. Nothing at all, because velvet has no blood and no feeling in it — no support
3. It would bleed, because the velvet is full of blood vessels — ✓ the right answer · no support
4. The antler would turn into a horn — score 6

Why: It took the question to ask what happens next. It chose option 1 with score 6, tied with another option at 6 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 143, line 7: «Antlers are bone and grow new every year; only male deer grow them, except reindeer, where females do too, and growing antlers are covered in soft velvet.», reached through what followed the sentence the question matched. What matched: the same action «grow» (+6). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 10 · ★★ · wrong ✗

Why would roaring and walking side by side be better for stags than fighting at once?

1. They are too tired to fight in autumn — no support
2. Roaring makes the antlers grow — ← Mova's choice · score 5
3. The weaker stag can see he would lose and leave unhurt — ✓ the right answer · no support
4. Fighting is forbidden by the herd leader — no support

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 5, the only option with support. Its support: lesson 235, line 8: «Orcas in Antarctica swim side by side to make a wave that washes a seal off an ice floe, and older orcas teach younger ones.», reached through the cause of the sentence the question matched. What matched: the same action «make» (+5). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 11 · ★★ · wrong ✗

«why do car people in Sweden do a 'moose test'» What is the answer?

1. They count how many moose they can spot from the car in one hour — ← Mova's choice · score 7
2. They test if moose can drive — no support
3. Moose crashes are dangerous, so cars are tested on a sharp swerve — ✓ the right answer · no support
4. They paint moose on cars for luck — score 7

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 7, tied with another option at 7 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 284, line 16: «Citizen scientists are ordinary people who count birds, butterflies and frogs and send the numbers to scientists; the Big Garden Birdwatch in Britain has hundr…», reached through the option's own match among the sentences about the question's things. What matched: the same action «count» (+4); a different thing acted on (counts against) (+2); the same doer «ordinary people» (+1). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 12 · ★★ · wrong ✗

«only 2 of britain's 6 wild deer were here first?» Which four were brought by people?

1. Moose, reindeer, muntjac and roe deer — ← Mova's choice · score 4
2. Fallow, sika, muntjac and Chinese water deer — ✓ the right answer · score 4
3. Red, sika, muntjac and Chinese water deer — score 4
4. Red, roe, fallow and sika deer — score 4

Why: It took the question to ask what it is done to. 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 300, line 10: «The dodo of Mauritius could not fly and had no fear of people; it was wiped out in the 1600s by people and by the rats, pigs and other animals they brought, wh…», reached through the remembered sentence the question matched. What matched: a different thing acted on (counts against) (+2); the same action «bring» (+1); the same doer «people» (+1). The right option, 2, scored 4. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · wrong ✗

Identify the principal distinction between the antlers of deer and the horns of cattle.

1. No distinction exists, the terms being synonymous — no support
2. Antlers consist of keratin alone, whereas horns consist of wood — no support
3. Antlers consist of bone and are shed annually, whereas horns comprise a bony core sheathed in keratin and are retained for life — ✓ the right answer · no support
4. Antlers are retained throughout the life of the animal, whereas horns are shed annually and regrown each spring in a larger form — ← Mova's choice · score 3

Why: It took the question to ask which statement is true. It chose option 4 with score 3, the only option with support. Its support: lesson 318, line 17: «Reindeer are the only deer in which both males and females grow antlers; males drop theirs in early winter, while females keep theirs through the winter.», reached through the remembered sentence the question matched. What matched: the same thing acted on «antlers» (+3). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · right ✓

Select the response consistent with the established facts concerning the reindeer.

1. It is the sole species of deer in which both sexes customarily bear antlers — ← Mova's choice · ✓ the right answer · score 5
2. It is a species of deer in which neither sex bears antlers — score 5
3. It is a species of goat bearing permanent horns — no support
4. It is the sole species of deer native to Britain — score 5

Why: It took the question to ask which statement is true. It chose option 1 with score 5, tied with another option at 5 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 318, line 17: «Reindeer are the only deer in which both males and females grow antlers; males drop theirs in early winter, while females keep theirs through the winter.», reached through the option's own match among the sentences about the question's things. What matched: the same circumstance (+3); the same light verb (be, have, do, get, go) (+2); the same doer «reindeer» (+1). Against it: a different thing acted on (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · right ✓

Which of the following statements most accurately characterises the species of deer living wild in Britain?

1. Six species are present, of which only the red and the roe deer are native — ← Mova's choice · ✓ the right answer · score 7
2. Twelve species are present, all of which are native — no support
3. Two species are present, both having been introduced by the Romans for hunting — no support
4. One species is present, namely the moose — no support

Why: It took the question to ask who or what does it. It chose option 1 with score 7, the only option with support. Its support: lesson 318, line 9: «In the autumn rut, red deer stags roar, walk side by side and sometimes lock antlers; roaring and walking show strength without a real fight, and the red deer…», reached through the remembered sentence the question matched. What matched: the same light verb (be, have, do, get, go) (+3); it fills the role the question asks for (+3); the same doer «red deer» (+1). · the question and its options parsed, with trees and pragmatics

Exam question 4 · formal language · wrong ✗

Ascertain the reason for which a collision between a motor vehicle and a moose is especially hazardous.

1. The animal regards vehicles as rival males during the rut and deliberately charges them — ← Mova's choice · score 3
2. The length of the animal's legs places its heavy body at the height of the windscreen — ✓ the right answer · no support
3. The animal cannot be observed in daylight — score 0
4. The antlers of the animal are composed of metal — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 3, against 0 for the next best. Its support: lesson 119, line 8: «Cats can see in about one sixth of the light people need, but in total darkness a cat sees nothing, just like you.», reached through the option's own match among the sentences about the question's things. What matched: the same action «see» (+3); the same doer «cat» (+1). Against it: a different thing acted on (counts against) (-1). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

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