No, trees are multicellular. Algae are what you mean. Or phytoplankton.
The smallest plant in the world is fresh water green algae. They are unicellular, and a single cell is less than 25 micrometers (one-millionth of a meter) long.
many
plants
The green part of a plant cell is chloroplast
Green!
The smallest plant in the world is probably the watermeal (Wolffia), which is a type of duckweed. These plants are tiny and float on the surface of water, with leaves that can be as small as 0.2 mm in length.
The green part of a plant cell is chloroplast
green
A chloroplast is a green cell, which gives the plant its green color. The cell wall surrounds an individual plant cell and is made up of fiber, and gives the plant its rigidity.
a plant cell has a cell wall made of cellulose, and it has a large vacuole. also, there will be chloroplasts if the plant is green
im pretty sure they have evolved into the plant we see today from the original single cell god created.
green