biochemical cycles
- Hydrologic
- Carbon
- Nitrogen
- Phosphorus
- Sulfur
Threats to biodiversity
- Habitat destruction
- Invasive species
- Pollution
- Population growth
- Overharvesting
Benefits of biodiversity
- providing food and medicine
- aiding ecosystem sustainability
- aesthetic and cultural value
Classification of Species
- Endemic species
- Native species
- Invasive species
- Endangered species
- Extinct species
- Keystone species
Persistent Challenges of Today
- Climate change
- Hunger
- Clean Water
- Energy Resources
- Air quality
- Biodiversity Loss
Hierarchy of Organization
Atom
Molecule
Cell
Tissue
Organ
Body System
Organism
Population
Community
Ecosystem
Biosphere
Interventions and Signs of Hope
Population and pollution
Health
Renewable energy
Information and Education
Conservation of Forests and Nature Preserves
Protection of Marine Resources
Elements of Life
- Matter
- Atoms, Compounds, Molecules
- Macromolecules
Macromolecules
- Carbohydrates (Sugars)
- Lipids (Fats/Oils)
- Proteins
- Nucleic acids (DNA/RNA)
Organization of Living Organisms
Cell
Tissue
Organ
Organ system
Organism
Population
Community
Ecosystems
Biosphere
Energy cycle
Food chain
Food web
Producers
Consumers
Kinds of consumers
Herbivores
Carnivores
Omnivores
Scavengers
Detritivores
Decomposers
Ecological Interactions
Competition
Predation
Symbiosis
Mutualism
Commensalism
Parasitism
Biomes
Tropical rainforests
savanna
desert
temperate grasslands
temperate forests
boreal forests/taiga
tundra
Marine Environment
Open oceans
tidal shores
tidal shores
coral reefs
seagrass beds
estuaries
salt marshes
Freshwater Ecosystems
Lakes
wetlands
rivers and streams
factors affecting human population
Socio-economic factor
Birth control measures
Soaring death rates
factors that influence fertility
Influenced by culture
Wanting children for several reasons
Influenced by education and income
Birth control
Celibacy
delayed marriage
contraception
Many options to control fertility now
o Natural (avoidance of intercourse during fertile periods)
o Mechanical barriers
o Surgical methods
o Pills and others
