Animals of North America and Britain: moose, bald eagles, raccoons, beavers, foxes, badgers, hedgehogs, robins

Tests: 6 of 12 right · Exam: 2 of 4 right · Kind: ★★★ · Understood: 12 of 16 · Run: 2026-10-18, commit f3c23ea72

Lesson 80 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 ✓

«gonna feed the hedgehog bread and milk like in my picture book» What is right?

1. Fine, as long as the milk is warm — no support
2. Milk upsets their stomachs; put out water and meaty pet food — ← Mova's choice · ✓ the right answer · score 6
3. Fine, but add some chocolate — no support
4. Perfect, that is their favourite meal, just like in every picture book — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 6, the only option with support. Its support: lesson 80, line 11: «A hedgehog has about 5,000 to 7,000 spines, which are hollow hairs, eats mostly insects, worms and beetles, hibernates from about November to March, and should…», reached through a sentence linked to the one the question matched. What matched: the same action «upset» (+2); the same doer «milk» (+2); the same thing acted on «stomachs» (+2). · the question and its options parsed, with trees and pragmatics

Test 2 · ★★★ · wrong ✗

In a cartoon, a hedgehog rolls through an orchard and carries apples on its spines. What is real?

1. Hedgehogs have no spines — ← Mova's choice · score 9
2. Hedgehogs mostly eat insects, worms and beetles, not apples — ✓ the right answer · score 5
3. Hedgehogs eat only apples — score 3
4. Hedgehogs really do collect apples on their spines to store for winter — score 4

Why: It took the question to ask which statement is true. It chose option 1 with score 9, against 5 for the next best. Its support: lesson 53, line 6: «A hedgehog has about 5000 to 7000 spines, which are stiff hollow hairs, and a strong muscle lets it roll into a tight prickly ball.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «hedgehog» (+5); the same thing acted on «5000 spines» (+2); the same light verb (be, have, do, get, go) (+2). The right option, 2, scored 5. · the question and its options parsed, with trees and pragmatics

Test 3 · ★★★ · right ✓

«raccoons wash their food coz they're clean freaks» What is right?

1. Yes, raccoons hate any dirt — no support
2. No, they never touch water — no support
3. They dunk even clean food, probably to feel it better with wet paws — ← Mova's choice · ✓ the right answer · score 4
4. Yes, raccoons wash everything twice and hate even a speck of dirt on it — score 0

Why: It took the question to ask which statement is true. It chose option 3 with score 4, against 0 for the next best. Its support: lesson 80, line 7: «Raccoons often dunk food in water even when it is clean, because wet, sensitive front paws seem to feel things better; they are not really washing it.», reached through the remembered sentence the question matched. What matched: the same thing acted on «food» (+5); the same action «dunk» (+2). Against it: a different doer (counts against) (-3). · the question and its options parsed, with trees and pragmatics

Test 4 · ★★★ · wrong ✗

«bald eagles are bald, it's in the name, duh» What is right?

1. Yes, they lose all their head feathers when they grow up — ← Mova's choice · no support
2. No, they have red head feathers — no support
3. They have white head feathers; bald is an old word for white — ✓ the right answer · no support
4. Yes, only the bald ones are called eagles — 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 ✗

«the robin over in Canada's the same as ours, just bigger» What is right?

1. No, the American robin is an eagle — ← Mova's choice · no support
2. No, the American robin is a thrush, a different bird named after ours — ✓ the right answer · no support
3. Yes, they swap countries every winter and come back fatter in spring — no support
4. Yes, exactly the same bird species, it just eats more over there — 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 6 · ★★★ · wrong ✗

«a skunk's raising its tail at our tent, shut up and keep still or chase it?» What is the best answer?

1. Try to pick it up gently — ← Mova's choice · no support
2. Back away slowly and give it lots of room; that is a warning — ✓ the right answer · no support
3. Run straight at it shouting — no support
4. Chase it off with a stick before it gets any closer to the tent — 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 · ★★★ · right ✓

«monarch butterflies fly to Mexico and back, same ones» What is right?

1. Yes, each one flies there and back twice — no support
2. The trip north takes several generations; the returners are their descendants — ← Mova's choice · ✓ the right answer · score 11
3. No, they never leave Mexico — no support
4. Yes, they live for twenty years, so they can make the trip again and again — score 5

Why: It took the question to ask which statement is true. It chose option 2 with score 11, against 5 for the next best. Its support: lesson 80, line 17: «The monarchs' journey north takes several generations, so the butterflies returning to Mexico are the great-great-grandchildren of those that left.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «journey north» (+5); the same action «take» (+4); the same thing acted on «several generations» (+2). · the question and its options parsed, with trees and pragmatics

Test 8 · ★★★ · right ✓

A monarch flies to a forest in Mexico it has never seen. What does that tell you?

1. It followed a map drawn by its parents — no support
2. It was carried by the wind by luck — no support
3. It followed the smell of its mother all the way from Canada to Mexico — no support
4. The way is built into its body, not learned from older butterflies — ← Mova's choice · ✓ the right answer · score -1

Why: It took the question to ask what it is done to. It chose option 4 with score -1, the only option with support. Its support: lesson 79, line 11: «New Zealand had no ground-hunting mammals before people came, so birds like the kiwi and kakapo did not need to fly.», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+2); the same thing acted on «hunting mammals» (+1). Against it: a different doer (counts against) (-4). · the question and its options parsed, with trees and pragmatics

Test 9 · ★★★ · wrong ✗

What would happen if every beaver dam on a stream were removed?

1. The stream would make a bigger pond — ← Mova's choice · score 8
2. More beavers would move in — score 2
3. The pond would drain and the animals living there would lose their home — ✓ the right answer · score 2
4. Nothing at all would change — no support

Why: It took the question to ask what happens next. It chose option 1 with score 8, against 2 for the next best. Its support: lesson 10, line 12: «Beavers fell trees with their teeth and build dams to make deep ponds that protect their lodge and do not freeze to the bottom; their orange front teeth contai…», reached through what followed the sentence the question matched. What matched: the same action «make» (+5); the same thing acted on «deep ponds» (+4). Against it: a different doer (counts against) (-1). The right option, 3, scored 2. · the question and its options parsed, with trees and pragmatics

Test 10 · ★★★ · right ✓

«squirrels are squirrels, who cares if grey ones took over» Why do people care?

1. Greys carry squirrelpox, which kills native red squirrels — ← Mova's choice · ✓ the right answer · score 11
2. Greys are much better for the woods because they plant more trees — no support
3. Red squirrels are pests from America — score 9
4. Grey squirrels are endangered too — score 9

Why: It took the question to ask who or what does it. It chose option 1 with score 11, against 9 for the next best. Its support: lesson 80, line 14: «Grey squirrels brought from North America in the 1800s took over much of the red squirrel's range in Britain; they carry squirrelpox, which kills many reds, an…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+5); the same doer «squirrelpox» (+4); the same action «kill» (+2). · the question and its options parsed, with trees and pragmatics

Test 11 · ★★★ · wrong ✗

«moose looks chill, I'll get close for a photo» What is the best answer?

1. Fine, they only charge in winter — ← Mova's choice · no support
2. Watch from far away, moose can be dangerous if approached — ✓ the right answer · no support
3. Fine, if you offer it bread — no support
4. Fine, moose are as tame as cows and like having their picture taken — 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 12 · ★★★ · right ✓

«why's the robin attacking the red scarf on the washing line, mental» What is right?

1. Robins hate washing lines — no support
2. It is hungry and trying to eat the scarf — no support
3. Its red breast warns rivals, so it may attack red cloth as an intruder — ← Mova's choice · ✓ the right answer · score 11
4. It wants the scarf as a soft lining for the nest it is building nearby — no support

Why: It took the question to ask why something happens (its cause). It chose option 3 with score 11, the only option with support. Its support: lesson 80, line 12: «The European robin sings all winter, both males and females defending territory with song, and its red breast warns rivals, so it may even attack a bunch of re…», reached through the cause of the sentence the question matched. What matched: the same action «warn» (+5); the same thing acted on «rivals» (+5); the same doer «red breast» (+1). · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · right ✓

Select the response consistent with the established facts concerning the derivation of the name of the bald eagle.

1. The term derives from an archaic word signifying white, for the head — ← Mova's choice · ✓ the right answer · score 9
2. The term refers to the absence of feathers upon the head of the adult — no support
3. The term refers to the annual moulting of all head feathers in winter — no support
4. The term commemorates an individual of the surname Bald — 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 80, line 6: «The bald eagle is not bald; its name comes from an old word meaning white, for its white head, and it became the national bird of the USA in 1782.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «old word» (+5); the same action «mean» (+4). · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · wrong ✗

Identify the principal reason for which the raccoon is observed to immerse its food in water.

1. The raccoon thereby removes dirt in the manner of a human being — no support
2. The raccoon thereby cools food of an excessive temperature — ← Mova's choice · score 6
3. The raccoon thereby drowns living prey before consumption — no support
4. Moistened forepaws appear to give a keener sense of touch — ✓ the right answer · no support

Why: It took the question to ask which statement is true. It chose option 2 with score 6, the only option with support. Its support: lesson 80, line 7: «Raccoons often dunk food in water even when it is clean, because wet, sensitive front paws seem to feel things better; they are not really washing it.», reached through the same lesson line as the sentence the question matched. What matched: the same doer «raccoons» (+5); the same thing acted on «food» (+2). Against it: a different action (counts against) (-1). The right option, 4, found no support in what it remembers. · 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 American robin?

1. It is identical in species to the European robin — score 10
2. It is a bird of prey with a reddish breast — score 10
3. It is a thrush, larger than the European robin, to which it owes its name — ← Mova's choice · ✓ the right answer · score 11
4. It is a parrot native to Canada — score 10

Why: It took the question to ask who or what does it. It chose option 3 with score 11, against 10 for the next best. Its support: lesson 80, line 12: «The European robin sings all winter, both males and females defending territory with song, and its red breast warns rivals, so it may even attack a bunch of re…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+5); the same doer «european robin» (+4); a different action (counts against) (+2). · the question and its options parsed, with trees and pragmatics

Exam question 4 · formal language · wrong ✗

Ascertain the relationship between the monarch butterflies that depart southward and those that return to Mexico in the following autumn.

1. No butterflies return to Mexico in the following autumn — ← Mova's choice · score 6
2. The returning butterflies are the very same individuals — no support
3. The returning butterflies are of a different species — no support
4. The returning butterflies are descendants of the departing ones, several generations on — ✓ the right answer · no support

Why: It took the question to ask which statement is true. It chose option 1 with score 6, the only option with support. Its support: lesson 80, line 17: «The monarchs' journey north takes several generations, so the butterflies returning to Mexico are the great-great-grandchildren of those that left.», reached through the option's own match among the sentences about the question's things. What matched: the same action «return» (+2); the same doer «butterflies» (+2); the same receiver «mexico» (+2). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/biology/80-animals-of-north-america-and-britain/