Unit 1 - Characteristics & Classification Of Living Organisms

• Movement • Respiration • Sensitivity • Growth • Reproduction • Excretion • Nutrition

An action by an organism or part of an organism causing a change of position or place.

The chemical reactions in cells that break down nutrient molecules and release energy for metabolism.

The ability to detect or sense stimuli in the internal or external environment and to make appropriate responses.

A permanent increase in size and dry mass by an increase in cell number or cell size or both.

The processes that make more of the same kind of organism.

Removal from organisms of the waste products of metabolism, toxic materials, and substances in excess of requirements.

Taking in of materials for energy, growth and development; plants require light, carbon dioxide, water and ions; animals need organic compounds and ions and usually need water.

A group of organisms that can reproduce to produce fertile offspring.

An internationally agreed system in which the scientific name of an organism is made up of two parts showing the genus and species.