Bites, stings and scratches: mosquitoes, wasps, ticks, dog bites and cat scratches

Tests: 4 of 12 right · Exam: 0 of 4 right · Kind: ★★ · Understood: 12 of 16 · Run: 2026-10-18, commit f3c23ea72

Lesson 399 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 · ★★ · wrong ✗

«got 6 bites last night, them male mozzies are evil» What is wrong?

1. Mosquitoes do not bite at night — no support
2. Only female mosquitoes bite — ✓ the right answer · no support
3. Mosquitoes never bite people — no support
4. Males bite more than females — ← Mova's choice · 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 399, line 2: «Most bites and stings are animals defending themselves or feeding: a bee stings when squashed, a dog bites when it is scared or someone takes its bone, a cat s…», reached through the same lesson line as the sentence the question matched. What matched: the same action «bite» (+4); the same doer «dog» (+1). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 2 · ★★ · wrong ✗

«it itches like mad, gonna scratch till it bleeds» What is the best advice?

1. Scratching hard makes the itch go away for good, so keep going — ← Mova's choice · score 4
2. Scratching removes all the spit — no support
3. Scratching makes it itch more, so leave it and use a cool cloth — ✓ the right answer · no support
4. Scratch it with a stick instead — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 4, the only option with support. Its support: lesson 399, line 5: «Only female mosquitoes bite, because they need blood to make their eggs; their spit keeps the blood runny so it does not clot, and our body reacts to the spit…», reached through the same lesson line as the sentence the question matched. What matched: the same action «make» (+4). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 3 · ★★ · wrong ✗

A girl at school carries a special pen in case of a wasp sting. After a sting she struggles to breathe. What should happen?

1. Tell her to run around — ← Mova's choice · no support
2. A grown-up calls 112 at once — ✓ the right answer · no support
3. Give her a drink of juice and some biscuits — no support
4. Wait quietly to see if it passes — 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 · ★★ · right ✓

In a cartoon, a bee stings a bear on the nose again and again. What is wrong for a honeybee?

1. Bees sting with their teeth — score 0
2. A honeybee can sting only once and then dies — ← Mova's choice · ✓ the right answer · score 5
3. Bees can sting a hundred times, but only big animals like bears — score 0
4. Bees never sting bears — score 0

Why: It took the question to ask which statement is true. It chose option 2 with score 5, against 0 for the next best. Its support: lesson 399, line 7: «A honeybee's sting has barbs and stays in the skin, so the bee dies after stinging, while a wasp's sting is smooth and can sting again; a grown-up scrapes a be…», reached through the same lesson line as the sentence the question matched. What matched: the same action «sting» (+4); the same doer «honeybee» (+1). · the question and its options parsed, with trees and pragmatics

Test 5 · ★★ · wrong ✗

«found a tick on me after camping, I'll just squeeze it off» What is better?

1. Burn it with a match — no support
2. Tell a grown-up, who takes it out close to the skin with a tick tool — ✓ the right answer · score 0
3. Leave it there for a week — no support
4. Squeeze its body hard between two fingers until it lets go of the skin — ← Mova's choice · score 4

Why: It took the question to ask which statement is true. It chose option 4 with score 4, against 0 for the next best. Its support: lesson 393, line 13: «A tick is a tiny eight-legged relative of spiders, not an insect; it waits on grass tips, grabs passing animals and drinks blood, and some ticks carry illnesse…», reached through the option's own match among the sentences about the question's things. What matched: the same circumstance (+3); the same doer «tick» (+1). The right option, 2, scored 0. · the question and its options parsed, with trees and pragmatics

Test 6 · ★★ · wrong ✗

Count them: a spider has 8 legs and 2 fangs. How many legs and fangs do 3 spiders have?

1. 32 legs and 8 fangs — ← Mova's choice · score 6
2. 24 legs and 3 fangs — score 6
3. 24 legs and 6 fangs — ✓ the right answer · score 6
4. 18 legs and 6 fangs — score 6

Why: It took the question to ask what it is done to. It chose option 1 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 40, line 7: «A spider has eight legs; the two short leg-like feelers by its mouth, the pedipalps, are not legs.», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+3); a different doer (counts against) (+2); the same thing acted on «legs» (+1). The right option, 3, scored 6. · the question and its options parsed, with trees and pragmatics

Test 7 · ★★ · right ✓

«every spider in Europe can kill ya» What is the best correction?

1. Almost all are harmless, and most cannot even bite through our skin — ← Mova's choice · ✓ the right answer · score 6
2. Spiders have no fangs at all — score 5
3. True, all spiders are deadly, even the little ones in the bath — score 5
4. True, but only in summer — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 6, against 5 for the next best. Its support: lesson 399, line 15: «Almost all spiders in Ukraine and Europe are harmless to people, most cannot even bite through our skin, and they bite only when trapped or squeezed; a spider…», reached through the same lesson line as the sentence the question matched. What matched: the same action «bite» (+4); the same doer «most» (+1); the same place «skin» (+1). · the question and its options parsed, with trees and pragmatics

Test 8 · ★★ · right ✓

Your friend's dog growls and goes stiff when you reach for its bone. What should you do?

1. Grab the bone quickly before the dog can bite you — score 8
2. Stare hard into its eyes — score 7
3. Back off and leave the dog and the bone alone — ← Mova's choice · ✓ the right answer · score 15
4. Pat it on the head — no support

Why: It took the question to ask what is done. It chose option 3 with score 15, against 8 for the next best. Its support: lesson 292, line 2: «Living with a dog means learning its language. A dog cannot say «leave me alone», so it says it with its body: it yawns, licks its lips, turns its head away, s…», 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 action «leave» (+4); the same thing acted on «dog» (+3); the same property (+3). · the question and its options parsed, with trees and pragmatics

Test 9 · ★★ · wrong ✗

«Tom always pulls the cat's tail in the cartoon and the cat's fine» What would a real cat do?

1. Purr happily — score 6
2. Pull Tom's tail back — ← Mova's choice · score 8
3. Scratch or bite because it is scared or hurt — ✓ the right answer · score 7
4. Laugh about it and run away — no support

Why: It took the question to ask what is done. It chose option 2 with score 8, against 7 for the next best. Its support: lesson 399, line 2: «Most bites and stings are animals defending themselves or feeding: a bee stings when squashed, a dog bites when it is scared or someone takes its bone, a cat s…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «tail» (+3); it fills the role the question asks for (+3); the same action «pull» (+2). The right option, 3, scored 7. · the question and its options parsed, with trees and pragmatics

Test 10 · ★★ · right ✓

The cat scratch on your hand is now swollen, hot and you feel ill. What should happen?

1. Put more soap on it every hour — no support
2. Nothing, scratches always heal — no support
3. Scratch it again to clean it — no support
4. A doctor should look at it — ← 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 399, line 12: «Cats scratch and bite when scared or hurt and usually warn first with flattened ears and a swishing tail; a scratch should be washed with soap and water, and a…», reached through the same lesson line as the sentence the question matched. What matched: the same action «look» (+4); the same doer «doctor» (+1). · the question and its options parsed, with trees and pragmatics

Test 11 · ★★ · wrong ✗

«sat on a mound in the woods and now my legs are on fire» What has probably happened?

1. A snake was hiding in the mound and bit you lots of times — ← Mova's choice · no support
2. Red wood ants bit and sprayed acid to defend their nest — ✓ the right answer · no support
3. Hornets stung you — no support
4. The mound was hot from the Sun — 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 12 · ★★ · wrong ✗

«a weird bug bit me, I'm gonna catch it and bring it in a jar» What is the best plan?

1. Squash it and keep it — no support
2. Catch it with your bare hand and keep it in the jar for the doctor — ← Mova's choice · score 0
3. Let it bite again to check — no support
4. Tell a grown-up and take a photo from a safe distance instead — ✓ the right answer · no support

Why: It took the question to ask which statement is true. It chose option 2 with score 0, the only option with support. Its support: lesson 226, line 5: «Animals feel pain and fear as we do, so throwing stones at a cat, keeping a frog in a jar or leaving a dog chained up alone all day are cruel, even if nobody m…», reached through the option's own match among the sentences about the question's things. What matched: the same place «jar» (+3). Against it: the same action «keep» (-1); a different thing acted on (counts against) (-2). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · wrong ✗

Identify the reason for which only female mosquitoes consume blood.

1. Blood constitutes the sole food of all mosquitoes — ← Mova's choice · score 4
2. They require blood for the production of their eggs — ✓ the right answer · score 0
3. They require blood in order to maintain their body temperature — score 0
4. They require blood for the growth of their wings — score 0

Why: It took the question to ask which statement is true. It chose option 1 with score 4, against 0 for the next best. Its support: lesson 299, line 9: «The heart is a muscle about the size of your fist that pumps blood around the body about 100000 times a day, and blood carries oxygen and food to every cell.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «oxygen» (+2); the same doer «blood» (+1); a different action (counts against) (+1). The right option, 2, scored 0. · 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 sting of the honeybee in comparison with that of the wasp?

1. The sting of the wasp remains in the skin, whereas that of the honeybee may be withdrawn and employed repeatedly against an intruder — ← Mova's choice · score 10
2. The barbed sting of the honeybee remains in the skin, whereas the smooth sting of the wasp may be employed repeatedly — ✓ the right answer · score 10
3. Neither insect possesses a sting — no support
4. Both insects may sting only once — no support

Why: It took the question to ask who or what does it. It chose option 1 with score 10, tied with another option at 10 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 399, line 7: «A honeybee's sting has barbs and stays in the skin, so the bee dies after stinging, while a wasp's sting is smooth and can sting again; a grown-up scrapes a be…», reached through the same lesson line as the sentence the question matched. What matched: the same action «stay» (+3); it fills the role the question asks for (+3); the same doer «sting» (+2); the same place «skin» (+2). The right option, 2, scored 10. · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · wrong ✗

Select the response consistent with the established guidance following any bite or sting received by a child.

1. The child shall refrain from informing any person — ← Mova's choice · no support
2. The animal responsible shall be captured and retained — no support
3. The affected part shall be scratched vigorously — no support
4. An adult shall be informed forthwith, and the affected part washed and kept still and cool — ✓ 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 4 · formal language · wrong ✗

It is given that a spider possesses eight legs and two fangs. Ascertain the total number of legs of four spiders.

1. Twenty-four — ← Mova's choice · no support
2. Thirty-two — ✓ the right answer · no support
3. Eight — no support
4. Sixteen — 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/399-bites-stings-and-scratches-mosquitoes-wasps-ticks-dog-bites-and-cat-scratches/