Insects and spiders Lesson 72 of the world course of Mova's primary school: 18 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: the lesson at school .
0 An insect's body has three parts: the head with its eyes and antennae, the thorax where all six legs and the wings are fixed, and the abdomen, where food is digested. 1 Insects have no lungs: air flows into their bodies through tiny holes along their sides and travels down thin tubes, which works only in small bodies, and that is one reason insects stay small. 2 An insect's hard outer skeleton cannot stretch, so a growing insect must moult: it splits its old skin and crawls out in a new, soft one that hardens later. 3 Spiders are arachnids, like scorpions and ticks: two body parts, eight legs, no antennae and no wings. 4 They make silk in special organs at the end of the abdomen, called spinnerets. 5 For example, a garden spider builds a sticky web and waits, while a jumping spider spins no web at all: it stalks its prey with its big front eyes and leaps on it like a tiny cat. 6 An insect's body has a head, a thorax and an abdomen. 7 An insect's legs and wings are all fixed to the thorax. 8 Insects smell and feel with their antennae. 9 Many insects have compound eyes made of hundreds or thousands of tiny lenses, very good at seeing movement all around them. 10 Insects breathe through tiny holes along their bodies, not through lungs. 11 Insects and spiders must moult their hard outer skeleton to grow. 12 There are more known kinds of insects than of all other animals together, and beetles are the biggest group. 13 Honeybees, ants and termites live in large colonies with a queen who lays the eggs. 14 A honeybee does a waggle dance to tell other bees where to find flowers. 15 Spiders are arachnids, together with scorpions, ticks and mites. 16 Spiders make silk with spinnerets, but not all spiders build webs. 17 Most spiders have eight eyes, and very few are dangerous to people. ← previous Rockets, satellites and astronautsnext → Birds: feathers, nests and flight↑ back to World This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/world/72-insects-and-spiders/