Habitats and adaptations

Tests: 7 of 13 right · Exam: 3 of 4 right · Kind: ★★ · Understood: 9 of 17 · Run: 2026-10-18, commit f3c23ea72

Lesson 27 of the world 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 ✓

An animal has white fur, small ears, thick fat and wide furry feet. Where does it most likely live?

1. In the Arctic — ← Mova's choice · ✓ the right answer · no support
2. In the deep ocean — no support
3. In a rainforest — no support
4. In a hot desert — 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 · ★★ · right ✓

A plant has a fat stem, no leaves, a waxy skin and long shallow roots. Where does it most likely grow?

1. In a desert — ← Mova's choice · ✓ the right answer · no support
2. In a pond — no support
3. In the Arctic sea — no support
4. On a dark forest floor — 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 ✓

A polar bear is moved to a hot desert. What would its fur and fat do there?

1. Make it overheat — ← Mova's choice · ✓ the right answer · score 4
2. Help it find water — no support
3. Hide it on the sand — no support
4. Keep it cool — no support

Why: It took the question to ask what is done. It chose option 1 with score 4, the only option with support. Its support: lesson 11, line 2: «Matter is made of tiny particles, far too small to see, and they are always moving.», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+3); the same action «make» (+2). Against it: a different thing acted on (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 4 · ★★ · right ✓

A boy says a giraffe got a long neck by stretching to reach leaves all its life. What is right?

1. Long necks developed over many generations — ← Mova's choice · ✓ the right answer · no support
2. Necks grow when animals eat a lot — no support
3. Giraffes were born with short necks — no support
4. He is right, stretching all its life made it longer — 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 ✗

A moth is brown and speckled and rests on tree bark. How does this help it?

1. It helps the moth find food — ← Mova's choice · no support
2. It makes the moth taste bad — no support
3. Birds find it hard to see — ✓ the right answer · no support
4. It keeps the moth warm — 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 desert lizard hides under a rock at midday. Why?

1. To find some snow to drink — ← Mova's choice · no support
2. To warm up after the cold night — no support
3. To lay eggs in the shade only — no support
4. To keep cool out of the hot sun — ✓ 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 7 · ★★ · wrong ✗

Which is a myth about camels?

1. They have wide feet for sand — score 5
2. Their humps are full of water — ✓ the right answer · score 4
3. They can go days without drinking — ← Mova's choice · score 6
4. They can close their nostrils — score 6

Why: It took the question to ask which statement is true. It chose option 3 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 16, line 14: «A camel can go many days without drinking and copes with great heat; its hump stores fat, not water.», reached through the remembered sentence the question matched. What matched: the same action «drink» (+4); the same doer «camel» (+2). The right option, 2, scored 4. · the question and its options parsed, with trees and pragmatics

Test 8 · ★★ · wrong ✗

A new fish is found with a flat body, eyes on top and sandy colours. Where does it most likely live?

1. Hiding among red corals — ← Mova's choice · no support
2. Swimming fast in open water — no support
3. Lying on the sandy sea floor — ✓ the right answer · no support
4. Living in a fresh mountain stream — 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 · ★★ · wrong ✗

Why could a cactus not survive in a dark, wet forest well?

1. It cannot make any seeds there — score 1
2. It is adapted to bright light and dry soil — ✓ the right answer · score 1
3. It needs to eat forest animals — ← Mova's choice · score 3
4. Rain would wash its spines off — no support

Why: It took the question to ask why something happens (its cause). It chose option 3 with score 3, against 1 for the next best. Its support: lesson 27, line 3: «A camel stores fat (not water) in its hump, can go many days without drinking, has wide feet for soft sand and can close its nostrils against blowing sand; a c…», reached through the cause of the sentence the question matched. What matched: the same doer «cactus» (+4). Against it: a different action (counts against) (-1). The right option, 2, scored 1. · the question and its options parsed, with trees and pragmatics

Test 10 · ★★ · right ✓

why's a polar bear got so much fat

1. To make it run faster — no support
2. To float better in hot seas — no support
3. To store water for the summer — no support
4. To keep warm in the cold — ← Mova's choice · ✓ the right answer · score 6

Why: It took the question to ask which statement is true. It chose option 4 with score 6, the only option with support. Its support: lesson 27, line 12: «Polar bears have a thick layer of fat and dense fur to keep warm.», reached through the remembered sentence the question matched. What matched: the same action «keep» (+4); the same property (+2). · the question and its options parsed, with trees and pragmatics

Test 11 · ★★ · right ✓

why's a fennec fox got huge ears

1. To keep its head warm at night — no support
2. To dig its burrow faster — no support
3. To store water inside them — no support
4. To help it lose heat in the hot desert — ← 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, the only option with support. Its support: lesson 27, line 13: «Many Arctic animals have small ears, which lose less heat.», reached through the same lesson line as the sentence the question matched. What matched: the same action «lose» (+4); the same thing acted on «less heat» (+2). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 12 · ★★ · right ✓

my cousin says a camel's hump is full of water. true?

1. Yes, and it's full of milk too — no support
2. No, it stores fat — ← Mova's choice · ✓ the right answer · score 8
3. Yes, it's a big water tank — no support
4. No, it's full of air to float — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 8, the only option with support. Its support: lesson 16, line 14: «A camel can go many days without drinking and copes with great heat; its hump stores fat, not water.», reached through the remembered sentence the question matched. What matched: the same action «store» (+4); the same doer «hump» (+2); the same thing acted on «fat» (+2). · the question and its options parsed, with trees and pragmatics

Test 13 · ★★ · wrong ✗

Leo reckons a giraffe got a long neck by stretching it all its life. right?

1. Yes, and its babies are born with a stretched neck — ← Mova's choice · no support
2. No, adaptations develop over many generations — ✓ the right answer · no support
3. No, its neck grows only when it eats leaves — no support
4. Yes, each giraffe stretches its own neck longer — 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 is designated by the term adaptation?

1. The home of a living thing — no support
2. A feature that assists a living thing to survive in its habitat — ← Mova's choice · ✓ the right answer · score 12
3. A change that an animal makes deliberately within the course of its lifetime — no support
4. A journey to a more suitable habitat — no support

Why: It took the question to ask who or what does it. It chose option 2 with score 12, the only option with support. Its support: lesson 27, line 7: «An adaptation is a feature that helps a living thing survive in its habitat.», 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 «feature» (+4); the same action «help» (+3). · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · wrong ✗

Select the response that is consistent with the established facts concerning the hump of the camel.

1. It stores air — no support
2. It stores water — ← Mova's choice · score 1
3. It stores fat — ✓ the right answer · score 1
4. It stores undigested food — no support

Why: It took the question to ask which statement is true. It chose option 2 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 27, line 9: «A camel's hump stores fat, not water.», reached through the option's own match among the sentences about the question's things. What matched: the same action «store» (+1); the same thing acted on «fat» (+1). Against it: a different doer (counts against) (-1). The right option, 3, scored 1. · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · right ✓

Identify the principal reason for which many desert animals possess large ears.

1. The ears assist in the loss of bodily heat — ← Mova's choice · ✓ the right answer · score 8
2. The ears shield the eyes from the Sun — no support
3. The ears retain bodily heat — score 5
4. The ears store water — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 8, against 5 for the next best. Its support: lesson 27, line 14: «Many desert animals, like the fennec fox, have big ears that help them lose heat.», reached through the same lesson line as the sentence the question matched. What matched: the same action «help» (+4); the same doer «big ears» (+4). · the question and its options parsed, with trees and pragmatics

Exam question 4 · formal language · right ✓

Identify the principal advantage conferred upon a cactus by its spines in place of broad leaves.

1. A reduced loss of water and protection from animals — ← Mova's choice · ✓ the right answer · no support
2. An increased capacity to manufacture food in the sunlight — no support
3. An attraction of pollinating insects — no support
4. An increased absorption of rainfall — 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/world/27-habitats-and-adaptations/