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Introduction To Biology

Multicellular organization

Biology

The organism formed by many cells is called a multicellular organism. Frog and mustard plant are examples of multicellular organization.

Mustard Plant

  • The scientific name of the mustard plant is Brassica campestris, locally it is called “Sarsoon”.

  • It is multicellular (formed by many cells) and is cultivated in the winter season.

  • This plant has two parts, the vegetative part, which consists of the root, stem, and leaves, and the reproductive part which consists of flowers. Each flower is yellowish in color and produces seeds.

  • The leaves are used as vegetables while seeds are used for oil extraction.

  • The length of this plant is 1 to 1.5 meters.

Frog

  • The scientific name of the frog is Rana tigrina.

  • It is a multicellular animal, that lives in both water and land.

  • The body is divided into a head and a trunk, with no neck, the body is made of an organ system with different organs.

  • All organs are made of different tissues such as epithelial, glandular, muscular, nervous etc.

  • The frog lives near ditches, pools, ponds, stagnant streams, and slow-moving rivers.

  • It feeds on small insects.