Ask questions, make assumptions, make plans, implement plans, draw conclusions and express communication.

2. Biological characteristics

1) organisms need nutrition: most plants produce organic matter through photosynthesis (autotrophic); Animals get ready-made nutrition (heterotrophy) from the outside.

2) living things can breathe.

3) Organisms can excrete wastes from their bodies.

The way animals excrete waste: sweating, exhaling and urinating.

The way plants excrete waste: fallen leaves.

4)