Levels
Plant structure
Plant Response
Growth
Plant Reproduction
100

The smallest living part of an organism

Cell 

100

a part of an organism that has a certain job to help it survive



Structure

100

anything that makes an organism react

Stimulus

100

a behavior in which a plant’s roots grow down toward the center of the Earth as a response to gravity.

Geotropism or Gravitropism

100

is the transfer of pollen from one flower to another.

Pollination

200

A group of cells that work together to perform a certain function

Tissue

200

the job of the structure (part)

Function

200

a plant's response to a stimulus (light, gravity, touch)

Tropism 

200

when the seed sprouts into a seedling

Germination

200

the process when male and female reproductive parts (egg and pollen) join together

Fertilization

300

A group of tissues working together to perform a certain function 

Organ 

300

tubes that carry water from the roots to the leaves

Xylem

300

a behavior in which a plant grows towards the stimulus of light

Phototropism

300

any living thing

Organism

300

when a plant produces (makes) new plants

Reproduction

400

A group of organs to perform a certain function 

Organ System 

400

tubes that carry food (glucose) from the leaves to the rest of the plant

Phloem

400

a behavior in which a plant responds to the stimulus of touch

Thigmotropism 

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