Classification & Biodiversity

• What do living things require to survive?

  Nutrition, respiration, movement, and more
• What are the seven requirements of living things?

  Nutrition, respiration, movement, sensitivity, growth, reproduction
• What are living things made from?

  Cells
• Why do scientists classify living things?

  • To make them easier to study
  • To identify species
  • To examine evolutionary relationships
• What is the purpose of scientific names for species?

  To avoid confusion from different languages
• What are the two types of adaptations in species?

  • Morphological adaptations (structural)
  • Behavioral adaptations (how species act)
• What is competition in living organisms?

  When organisms require the same resources
• What resources do organisms compete for?

  • Food
  • Water
  • Space
  • Mates
• Can competition occur within species?

  Yes, it can occur within and between species
• What is biodiversity?

  The number of different species in an environment
• Why is biodiversity important?

  important as it is a source of food, materials and potential medicine
• How does biodiversity contribute to medicine?

  • More species lead to more medicinal discoveries
  • Chemicals from plants are sources for medicines
• How does biodiversity relate to environmental stability?

  The more biodiversity, the more stable the environment
• What methods are used to measure biodiversity?

  • Quadrat frame for sampling
  • Pitfall trap for capturing animals
• What are alien species?

  Species not normally found in a country
• What needs do living organisms have?

  Light, food, water, oxygen, minerals
• Why do plants need carbon dioxide?

  For photosynthesis
• What are the disadvantages of alien species?

  • Grow out of control
  • Compete with native species
  • Cause extinction
  • May carry diseases
• How can biodiversity be maintained?

  • Conservation of endangered species
  • Active conservation of habitats
  • Control of invasive species
  • Legislation to protect habitats
• What is the role of legislation in biodiversity conservation?

  To protect habitats or species through laws
• Why can legislation for wildlife be difficult to frame?

  It must cover all situations fairly
• What is classification in biology?

  Organisation of organisms into groups
• How can living organisms be broadly classified?

  Into groups such as plants and animals
• What are the two main groups of plants?

  • Flowering plants
  • Non-flowering plants
• What are the two main groups of animals?

  • Vertebrates (with backbone)
  • Invertebrates (without backbone)
• What are the two types of fungi?

  Single-celled and multicellular organisms
• Why is classification important?

  It makes it easier to identify organisms
• What is a scientific name composed of?

  Genus and species names
• How does the genus name in scientific classification begin?

  With a capital letter
• How does the species name in scientific classification begin?

  With a lowercase letter
• What are the two types of adaptations in organisms?

  • Morphological adaptations (structural)
  • Behavioral adaptations (behavioral)
• What resources do organisms require from the environment?

  • Light
  • Food
  • Oxygen
  • Carbon dioxide
  • Water
  • Minerals
• What does limited resources in the environment create?

  Competition between organisms
• What are the three types of biodiversity?

  • Species diversity
  • Genetic diversity
  • Ecosystem diversity
• Why is biodiversity important for food supplies?

  It safeguards future food supplies
• How does biodiversity contribute to medicine?

  It may contain chemicals for future use
• How does biodiversity affect ecosystems?

  Creates stable ecosystems that adapt
• What are some methods for maintaining biodiversity?

  • Protection of endangered species
  • Reforestation
  • Sustainable farming
  • Minimizing greenhouse gases
  • Legislation
• What is biodiversity?

  Variety of plant and animal life
• How can biodiversity be estimated?

  • By sampling an area of an ecosystem
  • Ensure sample is sufficient size
  • Avoid bias in selection