---
title: The big biology quiz, part 2: plants, the body and microbes — how Mova does on the tests · Biology
description: Lesson 299 of the biology course of Mova's primary school: 8 of 12 tests right, exam 3 of 4, every question with the options, the student's choice, the right answer and why it chose.
---

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# The big biology quiz, part 2: plants, the body and microbes

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**Tests:** 8 of 12 right · **Exam:** 3 of 4 right · **Kind:** ★ · **Understood:** 13 of 16 · **Run:** 2026-10-18, commit `f3c23ea72`

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Lesson 299 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](https://md.mova.elamur.ai/free/en/corpora/school/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/).

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Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: [the lesson's questions in the corpora](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/).

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### Test 1 · ★ · right ✓ {#t1}

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«put my bean plant in the cupboard so it's safe, it'll be fine yeah» What will happen?

- **1.** It will grow pale and weak, because it needs light to make food — **← Mova's choice** · **✓ the right answer** · score 3
- **2.** It will grow faster in the dark, because plants like to rest — score 2
- **3.** Nothing, plants only need water — score 3
- **4.** It will turn into a mushroom — score 2

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**Why:** It took the question to ask which statement is true. It chose option 1 with score 3, tied with another option at 3 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 299, line 5: «Plants need light, water, air and nutrients from the soil; they make their own food from sunlight, water and carbon dioxide and give out oxygen.», reached through the option's own match among the sentences about the question's things. What matched: the same action «need» (+3); the same thing acted on «light» (+1). Against it: the same doer «plants» (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/t1/)

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### Test 2 · ★ · wrong ✗ {#t2}

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«found mushrooms in the park, they look just like the shop ones, we're having them for tea» What is right?

- **1.** Yes, if you cook them long enough — no support
- **2.** Yes, if they look like shop ones they are safe — **← Mova's choice** · score 5
- **3.** Yes, but only the white ones — no support
- **4.** No, never eat wild mushrooms; many are deadly — **✓ the right answer** · score 5

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**Why:** It took the question to ask which statement is true. It chose option 2 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 78, line 14: «The Arabian oryx was hunted to extinction in the wild by 1972, but zoo-bred animals were released in Oman from 1982, and it moved from endangered to vulnerable…», reached through the option's own match among the sentences about the question's things. What matched: the same action «look» (+3); the same circumstance (+3). Against it: a different doer (counts against) (-1). The right option, 4, scored 5. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/t2/)

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### Test 3 · ★ · right ✓ {#t3}

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A baby has about 300 bones and an adult 206. Where do the missing bones go?

- **1.** They slowly melt away in the blood — score 3
- **2.** Many of the baby's bones join together as it grows — **← Mova's choice** · **✓ the right answer** · score 7
- **3.** The body throws them out — no support
- **4.** Babies lose them when their milk teeth fall out, one by one — score 5

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**Why:** It took the question to ask where. It chose option 2 with score 7, against 5 for the next best. Its support: lesson 263, line 2: «A baby has about 300 bones, and many of them join together as it grows, so a grown-up ends up with 206.», reached through the same lesson line as the sentence the question matched. What matched: the same action «join» (+3); its «because» matches the remembered cause (+2); the same doer «many» (+1); the same property (+1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/t3/)

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### Test 4 · ★ · right ✓ {#t4}

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«got a cold, gimme those antibiotics from last year» What is the best answer?

- **1.** Yes, but take double — no support
- **2.** Yes, if you mix them with orange juice — no support
- **3.** No, antibiotics do not work on cold viruses, and old leftovers must not be taken — **← Mova's choice** · **✓ the right answer** · score 4
- **4.** Yes, any antibiotic cures a cold, however old it is — score 3

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**Why:** It took the question to ask which statement is true. It chose option 3 with score 4, against 3 for the next best. Its support: lesson 257, line 7: «Some bacteria cause illness, such as strep throat, and antibiotics can kill them, but antibiotics do nothing against viruses, so they do not help a cold.», reached through a sentence linked to the one the question matched. What matched: the same doer «antibiotics» (+2); the same circumstance (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/t4/)

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### Test 5 · ★ · wrong ✗ {#t5}

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Count them: a class of 10 children each has a heart and 2 lungs. How many hearts and lungs in the room?

- **1.** 20 hearts and 20 lungs — **← Mova's choice** · no support
- **2.** 10 hearts and 20 lungs — **✓ the right answer** · no support
- **3.** 10 hearts and 10 lungs — no support
- **4.** 10 hearts and 40 lungs — no support

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**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](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/t5/)

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### Test 6 · ★ · right ✓ {#t6}

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In a cartoon the germs are little green monsters with angry faces. What is the truth?

- **1.** All bacteria are dangerous monsters — no support
- **2.** Germs really are green and have faces, but you need glasses to see them — score 1
- **3.** Germs are far too small to see, and most bacteria are harmless or helpful — **← Mova's choice** · **✓ the right answer** · score 2
- **4.** Germs are as big as ants — no support

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**Why:** It took the question to ask which statement is true. It chose option 3 with score 2, against 1 for the next best. Its support: lesson 299, line 10: «Germs are living things far too small to see without a microscope, such as bacteria, or viruses, that can make us ill; washing hands with soap removes many ger…», reached through the option's own match among the sentences about the question's things. What matched: the same light verb (be, have, do, get, go) (+2); its «because» matches the remembered cause (+1). Against it: the same doer «germs» (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/t6/)

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### Test 7 · ★ · right ✓ {#t7}

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«my food tastes of nothing with this cold, my tongue's broken» What is really going on?

- **1.** The blocked nose stops smell, which does a big part of tasting — **← Mova's choice** · **✓ the right answer** · score 8
- **2.** Taste buds fall out during a cold — no support
- **3.** Food really loses its flavour in winter — score 8
- **4.** The cold virus has killed the tongue and it will never taste again — score -1

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**Why:** It took the question to ask who or what does it. 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 299, line 13: «Smell does a big part of tasting, so with a blocked nose food tastes flat; the tongue itself senses sweet, sour, salty, bitter and savoury all over, not in sep…», reached through a sentence linked to the one the question matched. What matched: the same thing acted on «big part» (+3); the same light verb (be, have, do, get, go) (+2); it fills the role the question asks for (+2); the same doer «smell» (+1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/t7/)

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### Test 8 · ★ · wrong ✗ {#t8}

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«tongue map: sweet at the tip, bitter at the back, learned it at school» What is right?

- **1.** Right, each taste has its own zone on the tongue, like a map — **← Mova's choice** · no support
- **2.** Wrong, the tongue tastes only salt — no support
- **3.** Right, but only for children — no support
- **4.** Wrong; all five tastes are sensed all over the tongue — **✓ the right answer** · no support

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**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](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/t8/)

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### Test 9 · ★ · right ✓ {#t9}

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Pine trees keep their needles all winter while oak trees drop their leaves. Why do oaks drop theirs?

- **1.** To keep the birds warm — no support
- **2.** Because the wind blows them off by accident every year in the autumn storms — score 2
- **3.** Because the leaves get bored — no support
- **4.** To save water through the winter when the ground is frozen — **← Mova's choice** · **✓ the right answer** · score 6

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**Why:** It took the question to ask why something happens (its cause). It chose option 4 with score 6, against 2 for the next best. Its support: lesson 299, line 14: «In autumn trees stop making green chlorophyll, so yellow and orange colours that were hidden show through, some leaves make new red colours, and then the leave…», reached through the option's own match among the sentences about the question's things. What matched: the same action «save» (+3); the same thing acted on «water» (+2); a different doer (counts against) (+1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/t9/)

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### Test 10 · ★ · right ✓ {#t10}

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What would happen to the yeast in bread dough put into a hot oven?

- **1.** It would fly out of the bread — no support
- **2.** It would grow even faster for hours — no support
- **3.** It would turn into flour — no support
- **4.** The heat would kill it, so the bread stops rising — **← Mova's choice** · **✓ the right answer** · score 1

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**Why:** It took the question to ask which statement is true. It chose option 4 with score 1, the only option with support. Its support: lesson 299, line 15: «Yeast is a tiny living fungus that eats sugar and makes gas bubbles that make bread rise; it works best when warm, and the heat of the oven kills it.», reached through the option's own match among the sentences about the question's things. What matched: the same action «kill» (+3). Against it: the same doer «heat» (-1); a different thing acted on (counts against) (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/t10/)

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### Test 11 · ★ · right ✓ {#t11}

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«my mate says a vaccine gives you the actual disease, that's how it works» What is the best correction?

- **1.** Yes, it is the full disease in a tiny bottle, just a bit weaker — no support
- **2.** No, vaccines kill all your blood cells — no support
- **3.** It shows the body a harmless copy or part of the germ, so it learns to fight it — **← Mova's choice** · **✓ the right answer** · score 9
- **4.** No, vaccines just make you sleepy — no support

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**Why:** It took the question to ask what something is like. It chose option 3 with score 9, the only option with support. Its support: lesson 299, line 12: «A vaccine shows the body a harmless copy or part of a germ, so the body learns to fight it and is ready if the real germ comes; vaccines wiped out smallpox and…», reached through the option's own match among the sentences about the question's things. What matched: the same action «show» (+4); the same doer «vaccine» (+2); the same receiver «body» (+2); the same thing acted on «harmless copy» (+1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/t11/)

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### Test 12 · ★ · wrong ✗ {#t12}

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Who shares the most DNA with you?

- **1.** Your neighbours — **← Mova's choice** · score 4
- **2.** Your parents, brothers and sisters — **✓ the right answer** · score 4
- **3.** Your best friend from school, if you are alike — no support
- **4.** Your pet dog — score 4

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**Why:** It took the question to ask who or what does it. 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 278, line 1: «An old idea said giraffes stretched their necks to reach high leaves and then passed the longer necks to their babies, but that is wrong: stretching your body…», reached through the remembered sentence the question matched. What matched: the same thing acted on «dna» (+2); the same circumstance (+2); a different action (counts against) (+2). Against it: a different doer (counts against) (-2). The right option, 2, scored 4. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/t12/)

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### Exam question 1 · formal language · right ✓ {#e1}

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Select the response consistent with the established facts concerning the classification of mushrooms.

- **1.** Mushrooms are minerals formed in the soil — no support
- **2.** Mushrooms are plants devoid of leaves, flowers and chlorophyll — no support
- **3.** Mushrooms are fungi, which constitute a kingdom distinct from plants — **← Mova's choice** · **✓ the right answer** · score 6
- **4.** Mushrooms are animals of a sedentary character — score -1

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**Why:** It took the question to ask which statement is true. It chose option 3 with score 6, against -1 for the next best. Its support: lesson 299, line 7: «Mushrooms are fungi, a kingdom of their own; fungi cannot make food from sunlight and are closer to animals than to plants, and many wild mushrooms are deadly,…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «mushrooms» (+2); the same thing acted on «fungi» (+2); the same light verb (be, have, do, get, go) (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/e1/)

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### Exam question 2 · formal language · right ✓ {#e2}

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Identify the principal reason for which antibiotics are ineffective in the treatment of the common cold.

- **1.** The common cold is caused by viruses, upon which antibiotics have no effect — **← Mova's choice** · **✓ the right answer** · score 3
- **2.** Antibiotics act exclusively upon fungi — no support
- **3.** The common cold is caused by bacteria resistant to all medicines — score 3
- **4.** Antibiotics are effective solely in persons of advanced age — no support

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**Why:** It took the question to ask which statement is true. It chose option 1 with score 3, tied with another option at 3 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 299, line 11: «Colds are caused by viruses, and antibiotics only work on bacteria, so rest, drinks and time help a cold, and using antibiotics wrongly helps resistant bacteri…», reached through the option's own match among the sentences about the question's things. What matched: the same action «cause» (+3); the same thing acted on «colds» (+1). Against it: the same doer «viruses» (-1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/e2/)

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### Exam question 3 · formal language · right ✓ {#e3}

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Which of the following statements most accurately characterises the mode of action of a vaccine?

- **1.** It destroys forthwith every micro-organism within the body — no support
- **2.** It lowers the temperature of the blood below that tolerated by pathogens, which thereupon perish — no support
- **3.** It presents to the body a harmless copy or part of a pathogen, whereby immunity is acquired — **← Mova's choice** · **✓ the right answer** · score 5
- **4.** It forms a barrier upon the skin impermeable to pathogens — no support

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**Why:** It took the question to ask who or what does it. It chose option 3 with score 5, the only option with support. Its support: lesson 299, line 12: «A vaccine shows the body a harmless copy or part of a germ, so the body learns to fight it and is ready if the real germ comes; vaccines wiped out smallpox and…», reached through the remembered sentence the question matched. What matched: the same receiver «body» (+4); the same thing acted on «harmless copy» (+2); the same action «show» (+1). Against it: a different doer (counts against) (-2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/e3/)

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### Exam question 4 · formal language · wrong ✗ {#e4}

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State the number of bones ordinarily present in the skeleton of an adult human being.

- **1.** Five hundred — **← Mova's choice** · no support
- **2.** Three hundred and six — no support
- **3.** One hundred and six — no support
- **4.** Two hundred and six — **✓ the right answer** · no support

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**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](https://md.mova.elamur.ai/free/en/corpora/questions/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/e4/)

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- ← previous: [298. The big biology quiz, part 1: habitats and animals](https://md.mova.elamur.ai/free/en/school-run/biology/298-the-big-biology-quiz-part-1-habitats-and-animals/)
- next →: [300. The big biology quiz, part 3: dinosaurs, evoluti…](https://md.mova.elamur.ai/free/en/school-run/biology/300-the-big-biology-quiz-part-3-dinosaurs-evolution-conservation-and-food/)
- ↑ back to [Biology](https://md.mova.elamur.ai/free/en/school-run/biology/)