Xylem

Celery is one of the vascular plants that contain xylem. Xylem is one of two types of transport tissue, but the best xylem tissue is wood.

Unicellular organism

This egg is a unicellular organism because only when embryo starts to grow and become multicellular.

Thorn of a plant

This is a thorny rose plant that is outside my house. There are many other plants with more thorns that can be found on park paths or in forests.

Stem-woody

This is a wood stem that is found on trees. Stems likes these are found everywhere around your neighborhood.

Rhizome

Rhizome is a plant with a horizontal stem. This is a plant I took a picture of in my house represents a rhizome.

Radial symmetry

Radial symmetry is a type of structure of an organism or part of an organism in which a vertical cut through the axis in any of two or more planes produces two halves that are mirror images of each other. A sunflower has each pedal mirroring one another which makes this an excellent example.

R-strategist

R-strategist are organisms that do not live for a long time, but produce an immense amount of offspring. This spider is an example of a R-strategist.