Which of the following are plant organs and which are animal organs ?

Brain, Leaf, Lungs, Roots, Stem, Kidneys, Flower, Heart

What is an organ? Give two examples of organs.

What is an organ system ?

(a) Give two examples of organ systems in animals.

(b) Name the two main organ systems in plants .

What are the functions of the following organs ?

(a) Heart (b) Brain

(c) Roots (d) Leaves

What is the shape of red blood cells in human blood? What function do red blood cells perform ?