Mammals and how they care for their young

Tests: 8 of 13 right · Exam: 1 of 4 right · Kind: plain · Understood: 13 of 17 · Run: 2026-10-18, commit f3c23ea72

Lesson 75 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 · wrong ✗

A farmer finds a newborn calf. What will it need to drink in its first days?

1. Fresh orange juice — no support
2. Its mother's milk — ✓ the right answer · no support
3. Nothing for several weeks — no support
4. Clean pond water — ← Mova's choice · score 7

Why: It took the question to ask what it is done to. It chose option 4 with score 7, the only option with support. Its support: lesson 36, line 4: «More than half of your body is water. We lose water every day in sweat, breath and urine, so we must drink it every day; water carries food in the blood, cools…», 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 thing acted on «water» (+3). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 2 · right ✓

Which is true about mammals?

1. Every mammal is born able to walk and run at once — no support
2. Every mammal is born from an egg — no support
3. Every mammal feeds its young with milk — ← Mova's choice · ✓ the right answer · score 11
4. Every mammal lives on land — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 11, the only option with support. Its support: lesson 75, line 6: «All mammals feed their young with milk.», reached through the remembered sentence the question matched. What matched: the same action «feed» (+4); the same circumstance (+4); the same doer «mammals» (+2); the same thing acted on «young» (+1). · the question and its options parsed, with trees and pragmatics

Test 3 · wrong ✗

A scientist finds an animal with fur that lays eggs and feeds its babies milk. What is it?

1. A reptile that makes milk for its babies — ← Mova's choice · score 12
2. A fish that has learned to live on land — no support
3. A bird that has grown fur instead of feathers — score 9
4. An egg-laying mammal like a platypus — ✓ the right answer · no support

Why: It took the question to ask what it is done to. It chose option 1 with score 12, against 9 for the next best. Its support: lesson 75, line 1: «All mammals feed their babies with milk made in the mother's body, so every baby mammal needs its mother at the start of its life.», 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 action «make» (+3); the same thing acted on «milk» (+3); the same circumstance (+2). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 4 · right ✓

Why do kittens stay in a safe nest for the first weeks?

1. They are born helpless with closed eyes — ← Mova's choice · ✓ the right answer · score 4
2. They are waiting to hatch — no support
3. Their mother forbids them to see light — no support
4. They are too heavy to move about on their own — no support

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 4, the only option with support. Its support: lesson 75, line 13: «Kittens and puppies are born with their eyes closed.», reached through the option's own match among the sentences about the question's things. What matched: the same action «bear» (+2); the same thing acted on «kittens» (+2). · the question and its options parsed, with trees and pragmatics

Test 5 · right ✓

What would happen to a baby kangaroo if it could not reach the pouch?

1. It would simply grow up faster outside its mother's body — score 1
2. It would turn into a different animal — score 1
3. Its father would feed it with insects — no support
4. It could not drink milk and would not survive — ← Mova's choice · ✓ the right answer · score 5

Why: It took the question to ask what happens next. It chose option 4 with score 5, against 1 for the next best. Its support: lesson 45, line 5: «Because Australia and New Zealand were cut off by the sea for millions of years, they have animals found nowhere else: kangaroos and koalas, which carry their…», reached through what followed the sentence the question matched. What matched: the same thing acted on «babies» (+4); the same doer «kangaroos» (+3). Against it: a different action (counts against) (-2). · the question and its options parsed, with trees and pragmatics

Test 6 · wrong ✗

Which pair shows a helpless baby and a ready-to-walk baby?

1. A baby giraffe and a foal — ← Mova's choice · score 5
2. A foal and a baby zebra — score 5
3. A puppy and a baby giraffe — ✓ the right answer · no support
4. A kitten and a puppy — no support

Why: It took the question to ask who or what does it. 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 75, line 11: «A newborn foal can stand and walk within a few hours of birth.», 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 «newborn foal» (+3). Against it: a different action (counts against) (-2). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 7 · wrong ✗

Why is a long childhood useful for human children?

1. It stops them from getting ill — no support
2. It means they need no food — ← Mova's choice · score 3
3. It keeps them small and light for longer — no support
4. It gives time to learn a great deal — ✓ the right answer · no support

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 3, the only option with support. Its support: lesson 58, line 14: «Every child has the right to be safe, to learn and to be treated fairly.», reached through the cause of the sentence the question matched. What matched: the same doer «child» (+3). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 8 · right ✓

A young elephant that has lost its mother joins another herd. Who is most likely to look after it?

1. The older females of the new herd — ← Mova's choice · ✓ the right answer · score 7
2. The young males of the herd — no support
3. Nobody, elephants never help others — no support
4. A lion that finds it — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 7, the only option with support. Its support: lesson 75, line 4: «Parents keep the young warm, clean and safe, and they teach them: a lioness shows her cubs how to hunt, and a young elephant learns where to find water from th…», reached through the remembered sentence the question matched. What matched: the same place «older females» (+4); the same property (+3). · the question and its options parsed, with trees and pragmatics

Test 9 · wrong ✗

How does a mammal mother differ from a frog mother?

1. She lays thousands of eggs in water — ← Mova's choice · no support
2. She leaves her young straight after birth — no support
3. Her babies breathe with gills at first — no support
4. She feeds her young milk and cares for them — ✓ 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 10 · right ✓

why are puppies born with their eyes shut

1. They are blind for life until they are washed — no support
2. Kittens and puppies are born with eyes closed and open them later — ← Mova's choice · ✓ the right answer · score 6
3. Their mum closes them to keep out the light — no support
4. They keep them shut to save energy for growing — 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 8, line 4: «The Moon is about 400 times smaller across than the Sun but also about 400 times closer, so in our sky they look almost the same size, which is why the Moon ca…», reached through the remembered sentence the question matched. What matched: the same action «hold» (+4); the same circumstance (+4). Against it: a different thing acted on (counts against) (-2). · the question and its options parsed, with trees and pragmatics

Test 11 · right ✓

how come a baby horse can walk straight away

1. A newborn foal can stand and walk within a few hours of birth — ← Mova's choice · ✓ the right answer · score 9
2. Foals walk because their mum pushes them along — score 6
3. Foals learn to walk while still inside their mum — score 6
4. Foals are born much older than other babies — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 9, against 6 for the next best. Its support: lesson 75, line 11: «A newborn foal can stand and walk within a few hours of birth.», reached through the remembered sentence the question matched. What matched: the same action «walk» (+4); the same property (+3); the same doer «newborn foal» (+2). · the question and its options parsed, with trees and pragmatics

Test 12 · right ✓

Mia says all mammals have live babies. true?

1. No, the platypus and echidnas are mammals that lay eggs — ← Mova's choice · ✓ the right answer · score 8
2. Yes, but some of them carry eggs in a pouch — score 1
3. No, most mammals lay eggs in nests — score 8
4. Yes, no mammal ever lays an egg — score 8

Why: It took the question to ask which statement is true. It chose option 1 with score 8, tied with another option at 8 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 29, line 5: «The platypus is a mammal with fur that feeds its young milk, yet it lays eggs, and a starfish and a jellyfish are not fish at all, because they have no backbon…», reached through a sentence linked to the one the question matched. What matched: the same action «lay» (+4); the same thing acted on «eggs» (+3); a different doer (counts against) (+1). · the question and its options parsed, with trees and pragmatics

Test 13 · right ✓

my mate reckons a kangaroo baby is born big and jumps into the pouch. right?

1. No, it is born tiny and grows in its mother's pouch — ← Mova's choice · ✓ the right answer · score 5
2. Yes, and then it leaves the pouch the same day — no support
3. Yes, it is born nearly fully grown — score 5
4. No, kangaroos lay eggs inside the pouch — score 2

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 31, line 8: «A baby is born with about 300 bones, and some of them join together as it grows.», reached through the remembered sentence the question matched. What matched: the same action «bear» (+4); the same thing acted on «baby» (+1). · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · wrong ✗

Which of the following statements most accurately characterises the feature common to all mammals?

1. They lay eggs with hard shells — ← Mova's choice · no support
2. They feed their young with milk — ✓ the right answer · no support
3. They give birth to live young without exception — no support
4. They carry their young in a pouch — 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 · wrong ✗

Identify, from the animals hereinafter enumerated, that mammal which lays eggs.

1. The kangaroo — ← Mova's choice · no support
2. The elephant — no support
3. The koala — no support
4. The platypus — ✓ 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 3 · formal language · wrong ✗

Ascertain the approximate period for which an elephant mother carries her young before birth.

1. About 9 months — ← Mova's choice · no support
2. About 40 months — no support
3. About 22 months — ✓ the right answer · no support
4. About 6 months — 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 · right ✓

Select the response that is consistent with the established facts concerning the acquisition of skills by young mammals.

1. All are possessed at birth without any learning — no support
2. Many are learned by watching and copying their parents — ← Mova's choice · ✓ the right answer · score 3
3. They are acquired only after the parents depart — no support
4. They are learned solely from other species — 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 75, line 17: «Young mammals learn many skills, such as hunting, by watching and copying their parents.», reached through the same lesson line as the sentence the question matched. What matched: the same action «copy» (+2); the same thing acted on «parents» (+1). · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/world/75-mammals-and-their-young/