Biology AS Unit 2 Key Terms

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  • Created by: Sally
  • Created on: 28-03-12 20:18

KEY TERMS YOU NEED TO KNOW BY HEART FOR THE UNIT 2 EDEXCEL EXAM

SPECIES-A species is a group of organisms with similar morphology, physiology and behaviour, which can interbreed to produce a fertile offspring and are reproductively isolated form other species.

  • Morphology- structures of an organism
  • Physiology- the inside of an organism 
  • Behaviour- how an organism acts

HABITAT- A place where an organism lives.

POPULATION- A group of interbreeding individuals of the same species found in an area.

COMMUNITY- Various populations in an area.

NICHE- How an organism exploits its its environment.

TYPES OF ADAPTATIONS

  • BEHAVIOURAL ADAPTATION- Any actions that help an organism to survive or reproduce.
  • PHYSIOLOGICAL ADAPTATIONS- The features of the internal working organism that enable it to survive or reproduce.
  • ANATOMICAL ADAPTATIONS- Structures we…

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