B15, 16 and 17 - Adaptations, Diversity, Organisation in Ecosytems Flashcards
All the topics meant for Ecology
Habitat
Place where an Organism lives
Population
All of Organisms of a species that in the same habitat
Community
Population of various species that live in together in the same habitat
Biotic Factors
Living Organisms/Factors of an environment: Amount of Food/Predators
Abiotic
Non Living Organisms/Factors: Soil PH, Moisture, Light or Wind Intensity
Ecosystem
Interaction of a community between Abiotic and Biotic Organisms
Competition (Animals)
- Competition is the fight against other Species of Animals to survive in the Ecosystem
- Animals need Food/Water, Territory and Mates (to reproduce) to live
Competition (Plants)
- Competition is the fight against other Species to survive
- Plants needs Light, Water/Minerals and Soil, all to Photosynthesise
Interdependence
- Abiotic/Biotic things relying on each other to live in an Ecosystem
- If one part of the Ecosystem falls, e.g. Organism dies out, then another part of the Ecosystem will be effected, e.g. Predators/Hunters have no more food
Types of Adaptations
Structural Adaptation - Physical Appearance
Functional Adaptation - Body Functions
Behavioural Adaptations - Effect Lifestyle/Behaviour, e.g. Nocturnal Creatures
Adaptations in Cold Climate
- Thick Fur, too keep warm
- Fatty contents, keeps warm and metabolic reactions can be used to produce water from the fat
- Camouflaged fur, for hunting
Adaptation in Hot Climate
- Fatty contents being a thermal insulator and produces water from metabolism
- Long eyelashes to keep dust out of their eyes
Plant Adaptations
- Cacti reduces water loss by not having many leaves
- Cacti have deep roots to gather as much rainfall as possible
- Plant would grow much taller to compete for light against other plants
- Large waxy leaves to gather as much rain
Extremophiles
- Organisms that live in extreme environments under high pressure and temperature
- Such as Bacteria located near Hydrothermal Vents
Producers
Plants that create their own energy through photosynthesis
Consumers
An organism that get energy by eating other organisms
Food Chains
Shows how energy is transferred from one organism to another
Food webs
Show how energy is transferred between many organisms, overlapping food chains
Food Chain Construction (arrows show where energy is going)
- Producers > Primary Consumers > Secondary Consumer > Tertiary (3rd) Consumer
- As energy is passed on to other consumers, lots of the energy is lost
Predator Prey Cycle
- Shows relationship between a Consumer (1st) and the Consumer (2nd)
- On a Predator-Prey Cycle there is lag time between both Consumers
Predator Prey Cycle Desciption
- As 1st Consumer increase in population, the 2nd also does as it feeds of the 1st Consumer
- 1st Consumer goes down in population and after a while, so does the 2nd
- It then repeats
Water Cycle
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Carbon Cycle (C = Carbon)
- Plants take in C for photosynthesis to create Cells, some C is respired, and a Consumer eats the Plant
- C in the Plant is taken in by Consumer, which respires some C
- Dead remains/Waste Products are broken down by Decomposers and release the C into the Atmosphere
- If no Oxygen, Remains/Waste becomes Fossil Fuels