Growing up: growth spurts, height, voices and getting stronger

Tests: 3 of 12 right · Exam: 1 of 4 right · Kind: ★ · Understood: 9 of 16 · Run: 2026-10-18, commit f3c23ea72

Lesson 361 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 ✓

«drink loads of milk and eat 5 dinners and you'll be taller than dad» says a friend. What is right?

1. Food builds the body, but extra food cannot make you taller than your genes allow — ← Mova's choice · ✓ the right answer · score 1
2. Yes, but only if the milk is cold — no support
3. No, food has nothing to do with growing — no support
4. Yes, every extra dinner adds a centimetre — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 1, the only option with support. Its support: lesson 331, line 1: «A dog's body and a cat's body are built differently from yours, so some foods you eat happily work like poison inside them.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «body» (+1). · the question and its options parsed, with trees and pragmatics

Test 2 · ★ · wrong ✗

Why might a doctor always measure a child at the same time of day?

1. Because the doctor's eyes get tired by the evening and cannot read the numbers — no support
2. Because children only grow after lunch — ← Mova's choice · score 3
3. Because rulers shrink in the afternoon — no support
4. Because you are about a centimetre taller in the morning than at night — ✓ 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 361, line 9: «In the teenage growth spurt children can grow about 8 to 10 centimetres in a year; feet and hands grow first, then legs, then the body, and shoe size often sto…», reached through the option's own match among the sentences about the question's things. What matched: the same action «grow» (+2); the same doer «children» (+1). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 3 · ★ · wrong ✗

«bro my voice just went squeaky then deep in one sentence lol, am i ill?» What is the truth?

1. Yes, it is a serious throat illness that needs a doctor and medicine straight away — ← Mova's choice · no support
2. No, it means you have stopped growing — no support
3. No, the vocal folds are growing and the brain has not learned to control them yet — ✓ the right answer · no support
4. Yes, you swallowed something stuck in your throat — 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: a doctor looks at X-rays of both hands of a girl. How many bones in both hands and wrists together?

1. 27 — ← Mova's choice · no support
2. 206 — no support
3. 54 — ✓ the right answer · no support
4. 10 — 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 ✓

A teenager suddenly keeps bumping into door frames and tripping over his own feet. What is a likely reason?

1. His hands, feet and legs grew fast and his brain has not caught up yet — ← Mova's choice · ✓ the right answer · score 1
2. His bones are getting shorter — no support
3. His feet have stopped growing — no support
4. His eyes have stopped working properly and he needs glasses for everything — score -2

Why: It took the question to ask which statement is true. It chose option 1 with score 1, against -2 for the next best. Its support: lesson 71, line 15: «Feet grow fast in childhood, often a size or more a year, and usually stop growing in the early to mid teens, before the rest of the body.», reached through the option's own match among the sentences about the question's things. What matched: the same property (+1). · the question and its options parsed, with trees and pragmatics

Test 6 · ★ · wrong ✗

«my great-great-grandad was way shorter than me, so height's not in your genes, right?» What is the best answer?

1. Right, genes have nothing to do with height — ← Mova's choice · no support
2. Genes matter, but better food and health let today's children reach more of their height — ✓ the right answer · no support
3. People got taller because they stretch more — no support
4. People in the past were short because they walked a lot — 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 ✗

In a cartoon, Tom stretches Jerry's arm until it is twice as long as he is tall, and it snaps back like elastic. What is true for a real body?

1. Arms really can stretch twice as long if pulled — ← Mova's choice · score 1
2. Pulling arms every day makes them grow fast — no support
3. Arms snap back because they are made of rubber — no support
4. Arms grow slowly at growth plates, and the arm span stays about the same as the height — ✓ the right answer · score 1

Why: It took the question to ask which statement is true. 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 265, line 10: «T. rex arms were short, about as long as a man's arm, but strong, with two fingers; scientists still argue what they were for.», reached through the option's own match among the sentences about the question's things. What matched: the same property (+1). The right option, 4, scored 1. · the question and its options parsed, with trees and pragmatics

Test 8 · ★ · wrong ✗

What would happen if a 20-year-old ate a huge amount of food every day for a year?

1. His growth plates would open again — no support
2. He would get wider, not taller, because his growth plates have closed — ✓ the right answer · no support
3. He would shrink a little — no support
4. He would grow about 10 centimetres taller, as long as he ate plenty of milk and meat — ← Mova's choice · score 9

Why: It took the question to ask what happens next. It chose option 4 with score 9, the only option with support. Its support: lesson 320, line 13: «Most bears eat mostly plants, such as berries, roots, nuts and grass; a grizzly in late summer is reported to eat many thousands of berries a day, and only the…», reached through what followed the sentence the question matched. What matched: the same action «eat» (+6); the same thing acted on «meat» (+3). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 9 · ★ · wrong ✗

«small gymnast can do more pull-ups than my big dad, how?» Which is the best reason?

1. Her muscles are bigger than his — ← Mova's choice · no support
2. Gymnasts have springs in their arms — no support
3. She is very strong for her small size, and pulling a light body is easier — ✓ the right answer · no support
4. She has more bones in her arms than he has, and extra bones make her stronger — 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 · ★ · wrong ✗

«legs ache every night after footie, but only the left knee is swollen and I'm limping» What is the right thing to do?

1. Drink milk and it will be fine — no support
2. Tell a grown-up and see a doctor, as swelling and a limp are not growing pains — ✓ the right answer · score 4
3. Run more to make the swelling go — no support
4. Ignore it, it is only growing pains — ← Mova's choice · 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 71, line 11: «Many children aged about 3 to 12 get aching legs at night that are gone by morning; they are called growing pains, but doctors are not sure growth causes them,…», reached through the same lesson line as the sentence the question matched. What matched: the same action «grow» (+4); the same thing acted on «pains» (+1). The right option, 2, scored 4. · the question and its options parsed, with trees and pragmatics

Test 11 · ★ · right ✓

Why do babies look top-heavy compared with grown-ups?

1. Babies have shorter necks only because they are lazy and do not hold their heads up — score 1
2. Babies' heads stop growing at birth — score 1
3. A baby's head is filled with air — no support
4. A baby's head is about a quarter of its length, a grown-up's only an eighth — ← Mova's choice · ✓ the right answer · score 3

Why: It took the question to ask why something happens (its cause). It chose option 4 with score 3, against 1 for the next best. Its support: lesson 359, line 4: «A newborn baby has about 270 to 300 bones, more than you; as it grows, many of them join together, until a grown-up has 206.», reached through the option's own match among the sentences about the question's things. What matched: the same action «grow» (+2); the same doer «baby» (+1). · the question and its options parsed, with trees and pragmatics

Test 12 · ★ · wrong ✗

A child in a sunny country plays outside every day. Why might she need fewer vitamin D drops than a child in a dark, cloudy country?

1. Children in sunny countries never grow at all — ← Mova's choice · score 4
2. Vitamin D drops do not work in hot places — no support
3. Her skin makes vitamin D in the daylight — ✓ the right answer · score 4
4. Sunlight puts extra calcium into her food — no support

Why: It took the question to ask why something happens (its cause). 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 361, line 9: «In the teenage growth spurt children can grow about 8 to 10 centimetres in a year; feet and hands grow first, then legs, then the body, and shoe size often sto…», reached through the option's own match among the sentences about the question's things. What matched: the same action «grow» (+2); the same doer «children» (+1); one says «not», the other does not (counts against) (+1). The right option, 3, scored 4. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · right ✓

Identify the principal reason for which an adult person cannot increase in stature by the consumption of additional nourishment.

1. The growth plates of the bones have closed and become solid bone — ← Mova's choice · ✓ the right answer · no support
2. The skeleton is dissolved by excess food — no support
3. The stomach declines to digest food after the age of twenty — no support
4. Nourishment is employed solely in the growth of hair — 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 ✗

Which of the following statements most accurately characterises the deepening of the voice during adolescence?

1. The teeth are replaced by larger teeth — ← Mova's choice · no support
2. The tongue enlarges considerably and thereby obstructs the passage of the throat — no support
3. The larynx enlarges and the vocal folds become longer and thicker — ✓ the right answer · no support
4. The lungs diminish in capacity — 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 ✗

Select the response consistent with the established facts concerning the secretion of growth hormone in children.

1. It is released solely upon the consumption of milk — ← Mova's choice · no support
2. It is released exclusively during physical exercise — no support
3. It is released principally during deep sleep at night — ✓ the right answer · no support
4. It is released only upon the attainment of adulthood — 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 · wrong ✗

It is given that a child measured at bedtime is found to be shorter than when measured upon waking. Ascertain the reason.

1. The intervertebral discs are compressed in the course of the day — ✓ the right answer · no support
2. The child grows one centimetre each night permanently — ← Mova's choice · score 1
3. The bones are shortened by the evening meal — no support
4. The measuring instrument expands overnight — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 1, the only option with support. Its support: lesson 361, line 9: «In the teenage growth spurt children can grow about 8 to 10 centimetres in a year; feet and hands grow first, then legs, then the body, and shoe size often sto…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «8 centimetres» (+1). The right option, 1, 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/361-growing-up-growth-spurts-height-voices-and-getting-stronger/