Antarctica: penguins, seals and the coldest place on Earth

Tests: 7 of 11 right · Exam: 2 of 4 right · Kind: ★★ · Understood: 11 of 15 · Run: 2026-10-18, commit f3c23ea72

Lesson 7 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 ✓

«christmas card's got polar bears and penguins being mates, aww» What is right?

1. Polar bears eat penguins every day — no support
2. They never meet: polar bears live in the north, penguins in the south — ← Mova's choice · ✓ the right answer · score 4
3. They meet every winter at the equator, halfway between the poles — no support
4. They are friends in the Arctic — score 4

Why: It took the question to ask which statement is true. It chose option 2 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 7, line 9: «Polar bears live only in the Arctic and penguins almost only in the southern half of the world, so they never meet in the wild; the Galapagos penguin lives rig…», reached through the option's own match among the sentences about the question's things. What matched: the same action «live» (+2); the same doer «polar bears» (+2). · the question and its options parsed, with trees and pragmatics

Test 2 · ★★ · right ✓

«happy feet's nonsense, penguins don't use their voices» What is right?

1. Penguins find their mates by smell only, as all the penguins look the same — score 3
2. Penguins never find each other again — score 0
3. Penguins have no voice at all — no support
4. Emperor penguins really do find their mates and chicks by their calls — ← 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, against 3 for the next best. Its support: lesson 7, line 7: «Emperor penguins find their partners and chicks among thousands of others by recognising their calls.», reached through the remembered sentence the question matched. What matched: the same action «call» (+4); the same doer «penguins» (+4). · the question and its options parsed, with trees and pragmatics

Test 3 · ★★ · wrong ✗

What would happen to whales, seals and penguins if the Antarctic krill disappeared?

1. Nothing, they eat only big fish — ← Mova's choice · score 3
2. They would all swim north and move to the Arctic, where there is more food — score 2
3. They would eat ice instead — score 2
4. Many would starve, because krill are their main food — ✓ the right answer · no support

Why: It took the question to ask what happens next. It chose option 1 with score 3, against 2 for the next best. 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 option's own match among the sentences about the question's things. What matched: the same action «eat» (+2); the same thing acted on «krill» (+2). Against it: a different doer (counts against) (-1). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 4 · ★★ · wrong ✗

«emperor penguin dads are lazy, they just stand there for 2 months» What is the best answer?

1. They are asleep and the egg looks after itself — ← Mova's choice · no support
2. They eat snow all the time instead of fish, so they never get hungry at all — no support
3. They are guarding the egg on their feet in the cold and eating nothing — ✓ the right answer · no support
4. They stand still because they are frozen solid — 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 ✗

Count them: five emperor penguin dads, each with one egg on his feet. How many feet and how many eggs?

1. 20 feet and 5 eggs — ← Mova's choice · no support
2. 10 feet and 10 eggs — no support
3. 5 feet and 10 eggs — no support
4. 10 feet and 5 eggs — ✓ 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 6 · ★★ · right ✓

«blue whale's heart is the size of a football, tops» What is closer to the truth?

1. It is the size of a pea — no support
2. It is reported to weigh about 180 kg, the biggest heart of any animal — ← Mova's choice · ✓ the right answer · score 6
3. Whales have no heart — score 4
4. It is about the size of a human heart — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 6, against 4 for the next best. Its support: lesson 7, line 12: «The blue whale, up to about 30 metres long, is the largest animal that has ever lived; it gulps krill and seawater and pushes the water out through comb-like b…», reached through the same lesson line as the sentence the question matched. What matched: the same action «report» (+2); the same thing acted on «largest animal» (+2); its «because» matches the remembered cause (+2). · the question and its options parsed, with trees and pragmatics

Test 7 · ★★ · right ✓

«don't drink seawater, penguins'd die too» Which is right about penguins?

1. Penguins die if they swallow even a little seawater, so they keep their beaks shut — score 6
2. Penguins never drink at all — score 2
3. Penguins can drink seawater, because a gland removes the extra salt — ← Mova's choice · ✓ the right answer · score 16
4. Penguins only drink melted snow — score 6

Why: It took the question to ask which statement is true. It chose option 3 with score 16, against 6 for the next best. Its support: lesson 7, line 19: «Adelie penguins build nests of stones that lift the eggs above meltwater, and because good stones are hard to find they steal them from their neighbours; pengu…», reached through the remembered sentence the question matched. What matched: the same action «drink» (+4); the same doer «penguins» (+4); the same thing acted on «seawater» (+4); its «because» matches the remembered cause (+4). · the question and its options parsed, with trees and pragmatics

Test 8 · ★★ · right ✓

«why would a fish have see-through blood, that's well weird» Which is the best answer?

1. It is ill and losing its blood — no support
2. Icefish have no red blood cells, and icy water holds lots of oxygen — ← Mova's choice · ✓ the right answer · score 3
3. The blood freezes into clear ice as soon as the fish swims into cold water — no support
4. It is a trick of the light in the ice — 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 7, line 16: «Antarctic icefish are the only animals with backbones that have no red blood cells, so their blood is almost clear; very cold water holds plenty of oxygen, and…», reached through the same lesson line as the sentence the question matched. What matched: the same action «hold» (+2); the same doer «cold water» (+2). Against it: a different thing acted on (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 9 · ★★ · wrong ✗

«antarctica's got towns innit, people live there» What is right?

1. Yes, it has big towns and schools — ← Mova's choice · no support
2. No, nobody has ever been there — no support
3. No one lives there for good; only scientists and support staff stay — ✓ the right answer · no support
4. Yes, people farm sheep there — 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's an albatross never flap, is it lazy» Which is the best answer?

1. It glides on the strong winds over the waves and saves energy — ← Mova's choice · ✓ the right answer · score 3
2. It cannot flap its wings at all — no support
3. It only glides when it is ill or very tired after a long flight — no support
4. It is sleeping in the air — no support

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 3, the only option with support. Its support: lesson 7, line 17: «The wandering albatross has the longest wingspan of any living bird, up to about 3.5 metres, and glides for hours on the winds of the Southern Ocean.», reached through the same lesson line as the sentence the question matched. What matched: the same action «glide» (+2); the same place «winds» (+2). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 11 · ★★ · right ✓

«penguin nicked a stone off its mate, cheeky sod» Why do Adelie penguins steal stones?

1. Good stones lift the eggs above meltwater and are hard to find — ← Mova's choice · ✓ the right answer · score 12
2. They throw stones at seals — no support
3. They like shiny things like magpies and hide them in their nests — no support
4. They eat stones for breakfast — no support

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 12, the only option with support. Its support: lesson 7, line 19: «Adelie penguins build nests of stones that lift the eggs above meltwater, and because good stones are hard to find they steal them from their neighbours; pengu…», reached through the cause of the sentence the question matched. What matched: the same doer «good stones» (+4); its «because» matches the remembered cause (+4); the same property (+2); the same light verb (be, have, do, get, go) (+2). · 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 distribution of polar bears and penguins?

1. Polar bears are confined to the Arctic, whereas penguins inhabit almost exclusively the southern hemisphere — ← Mova's choice · ✓ the right answer · score 9
2. Polar bears and penguins inhabit the same regions of Antarctica — score 9
3. Both species are found principally at the equator — no support
4. Penguins are confined to the Arctic, whereas polar bears inhabit Antarctica and the islands of the Southern Ocean — score 7

Why: It took the question to ask who or what does it. It chose option 1 with score 9, tied with another option at 9 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 7, line 8: «Penguins toboggan on their bellies because sliding is faster and uses less energy than waddling, and gentoo penguins are the fastest swimming penguins, at abou…», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+6); the same doer «gentoo penguins» (+4). Against it: a different thing acted on (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · wrong ✗

Identify the principal function of baleen in the feeding of the blue whale.

1. Baleen serves to produce sound for echolocation — no support
2. Baleen serves to pump air into the lungs — no support
3. Baleen retains the krill whilst permitting the expulsion of seawater from the mouth — ✓ the right answer · no support
4. Baleen serves to masticate large fish — ← 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 3, line 8: «Leafcutter ants do not eat the leaves they carry; they chew them into a mulch to grow a fungus garden, and the fungus feeds a colony that can hold several mill…», reached through the same lesson line as the sentence the question matched. What matched: the same action «chew» (+2); the same thing acted on «capybaras» (+2). Against it: a different doer (counts against) (-1). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · right ✓

Select the response consistent with the established facts concerning the lowest temperature recorded at a meteorological station.

1. A temperature of approximately minus two hundred degrees Celsius was recorded at the South Pole during the polar night — no support
2. A temperature of approximately minus forty degrees Celsius was recorded at the North Pole — no support
3. A temperature of approximately minus eighty-nine degrees Celsius was recorded at Vostok Station, Antarctica, in 1983 — ← Mova's choice · ✓ the right answer · score 6
4. No temperature below minus fifty degrees Celsius has ever been recorded — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 6, the only option with support. Its support: lesson 7, line 13: «The coldest temperature ever measured at a weather station was about minus 89 degrees Celsius, at Vostok Station in Antarctica in 1983.», reached through the remembered sentence the question matched. What matched: the same thing acted on «coldest temperature» (+4); the same place «weather station» (+4). Against it: a different action (counts against) (-2). · the question and its options parsed, with trees and pragmatics

Exam question 4 · formal language · wrong ✗

Ascertain the principal reason for which the blood of the Antarctic icefish is almost colourless.

1. The icefish possesses no blood whatsoever — ← Mova's choice · no support
2. The blood of the icefish consists of seawater — no support
3. The blood of the icefish is permanently frozen — no support
4. The icefish possesses no red blood cells, the cold water furnishing sufficient dissolved oxygen — ✓ 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

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/biology/7-antarctica/