Developmental phases in the Living Things

Life cycle of a butterfly

Eggs : A butterfly first starts out as an egg. A girl butterfly lays small, round eggs on a leaf. She lays the eggs really close together.

 Caterpillar : A caterpillar hatches from the tiny egg. The caterpillar may have stripes on it.

Pupa : The caterpillar makes a shell. The shell is the same color as the leaves or branches around it. This helps it hide from other animals. It stays inside the shell for one to two weeks. When the caterpillar is in the shell, it is called a pupa.

While the pupa is in the shell, it rests. Then, it starts to change into a butterfly. Its shape changes very quickly.

Butterly (Adult) : The pupa comes out of its shell. Now it is a butterfly.

Developmental phases in the Living Things

Life cycle of a frog

Egg : Tiny frog eggs are laid in masses in the water by a female frog. The eggs hatch into tadpoles. Life cycle of a frog

Tadpole : (also called the polliwog) This stage hatches from the egg. The tadpole spends its time swimming in the water, eating and growing. Tadpoles breathe using gills and have a tail. 24 Tadpole with legs : In this stage the tadpole sprouts legs (and then arms), has a longer body, and has a more distinct head. It still breathes using gills and has a tail.

Froglet : In this stage, the almost mature frog breathes with lungs and still has some of its tail.

 Adult : The adult frog breathes with lungs and has no tail (it has been absorbed by the body).

Developmental phases in the Living Things

Life cycle of a hen

The hen lays eggs. She sits on eggs for 21 days. It is called incubation.

After 21 days chickens hatch from eggs.

Developmental phases in the Living Things

Life cycle of plant
Growth of plants A seed gradually grows into a plant.

1. Planting Seed is planted, watered, and warmed by the sun.

 2. Germination Roots emerge from seed underground.

3. Germination Stem emerges from seed and pushes above ground with first leaves.

 4. Plant Growth Plant continues to grow above and below ground.

5. Reproduction Mature plant with flowers.

6. Reproduction Mature plant with fruits and or seeds

Some plants like rose grow from their cuttings instead of seeds.