Life cycles of plants and animals

How many stages are there in the life cycles of flowering plants?

• 1 stage

• 2 stages

• 3 stages

• 4 stages

Answer explanation

It has 3 stages: seed, young plant and adult plant.

Living things such as plants go through a _______pattern of change and grow over time in their life cycle.

• same

• different

• repeated

• slow

The ______ of the plant grows into a young plant.

• seed

• flower

• fruit

• leaf

Answer explanation

The seed in the fruit germinates and grows roots, then the shoot as it grows into a young plant.

Which of the following animals have 3-stage life cycle?

• frog

• mosquito

• mealworm beetle

• chicken

Answer explanation

Animals with 3 stage life cycle are: chicken, frog, cockroach and grasshopper.

How is the nymph different from the adult cockroach?

The nymph has ____ but the adult has.

• 6 legs

• no wings

• no eggs

• feelers

Answer explanation

The nymph does not have wings but its body shape and number of legs are similar to the adult cockroach.

How are the life cycles of grasshopper and cockroach similar?

Both _________________.

• the young look like their adult

• have all stages on land

• have egg stage

• have 3 stage life cycle

What is the process that you can see in the diagram?

• moulting

• growing

• changing

• developing

Answer explanation

Moulting is a process in which the insect shed its own skin and grows a new one as it grows.

At which stage of the life cycle of the butterfly it does not move and eat?

• egg stage

• larva stage

• pupa stage

• adult stage

Answer explanation

How is the young of the mosquito different from the adult?

• The young does not have wings but the adult has.

• The young lives in water but the adult lives on land.

• The young can fly like the adult.

• The adult can live in both water and on land but the young can only live in water.

How are the cockroach and frog life cycles similar?

• Both have 3 stages in their life cycles.

• Both have pupa stage

• Both have an egg stage.

• Both lay their eggs on land.