Invertebrates and insect life cycles
Answers are for parents and teachers.
1
In a table write one representative and one main feature for each of the seven phyla.
For example: amoeba – one cell; hydra – stinging cells; planarian – flat; ascaris – cuticle; earthworm – rings; bivalve – shell; crab – chitin.
2
How many legs do five honeybees and three cockroaches (all six-legged) have together?
48
3
Draw the life cycle of the housefly and add a short caption to each stage. Which kind of metamorphosis is it?
Egg → larva (maggot) → pupa → fly; complete metamorphosis.
4
Which hygiene rules help avoid parasitic worms? Write at least four.
Wash hands with soap, wash fruit and vegetables, drink boiled or safe water, cook meat well, keep nails short.