Import

• What two generations alternate in the plant life cycle?

  Gametophyte and sporophyte
• What process does the sporophyte use to produce haploid spores?

  Meiosis
• What process does the gametophyte use to produce gametes?

  Mitosis
• In bryophytes, which generation is dominant?

  Gametophyte
• Are bryophytes vascular or non-vascular plants?

  Non-vascular
• Why do bryophytes typically thrive in wet environments?

  They lack a vascular system
• Which type of plants have vascular tissue?

  Seedless vascular plants
• What two types of vascular tissue are found in vascular plants?

  Xylem and phloem
• What features do vascular plants usually have?

  Roots, stems, and leaves
• What are sori?

  Clusters of sporangia in ferns
• What kind of leaves do gymnosperms have?

  Tough, needle-like leaves
• What is a key characteristic of gymnosperms?

  Cone-bearing
• What kind of conditions are gymnosperms well-adapted for?

  Dry conditions
• What are the benefits of plants?

  • Food and oxygen production
  • Removing CO₂ from the atmosphere
  • Prevention of erosion
  • Building material
  • Aesthetic value
  • Medicines
• What plant is Aspirin derived from?

  Willow tree
• What plant is Digitalis derived from?

  Foxglove
• What plant is Vincristine derived from?

  Periwinkle
• What are angiosperms?

  Flowering plants
• Which group of plants is the most successful?

  Angiosperms
• What evolutionary relationship do angiosperms have with insect species?

  Co-evolution
• What are the leaflike parts that protect the developing flower called?

  Sepals
• What process causes the re-radiation of solar energy back towards Earth?

  Greenhouse effect
• What are some effects of climate change?

  • Rising sea levels
  • Increase in storms and floods
  • Melting glaciers
  • Ocean acidification
  • Extinction of organisms
  • Loss of ice
  • Loss of habitat
  • Higher temperatures
• What effect does deforestation have on atmospheric CO2 levels?

  Adds CO2 to the atmosphere
• How does the burning of fossil fuels affect greenhouse gases in the atmosphere?

  It causes an increase
• What effect do cow rice crops have on the atmosphere?

  Produce large amounts of methane
• What effect does using a push mower instead of a power mower have on trees?

  Reduces the amount of trees cut down
• How does deforestation affect the amount of trees acting as a CO2 sink?

  It reduces the amount of trees
• How can past levels of carbon dioxide be measured?

  Using cores from ice sheets
• How can we help reduce the effects of climate change?

  • Conserve natural resources
  • Carpool
  • Buy high-efficiency appliances
  • Recycle
  • Walk/bike
  • Drive an energy-efficient vehicle
• What effect has climate change had on global sea level?

  Sea level has risen