Science Ecology & Graphs Flashcards
What are ecologists?
People who study ecology
What is ecology?
Study of living things, & their interactions and their environment.
Describe what makes something a living thing
MRS GREN:
- Movement
- Reproduction
- Sensitivity
- Growth
- Respiration
- Excretion
- Nutrition
What is a Species?
A group of organisms that can reproduce and produce fertile offspring
What is a population?
Same species living in the same geographical area
What is a community?
Populations found in a habitat
What is an ecosystem?
Is the living and non-living factors of an area and how they interact with each other.
- They can be natural, such as the ocean.
- Or man-made: eg a vegetable garden is an ecosystem!
What is a biotic factor
All living organisms in an ecosystem
eg tree, mouse
What is an abiotic factor
All non living organisms in an ecosystem
eg rain, temperature
Where does all energy in the ecosystem come from?
The sun
Describe how plants capture light energy
Using photosynthesis they convert CO2, water sunlight into glucose
What is a food chain?
- Shows how energy is transferred from one organism to another.
- Starting with plants
In food chain what is a producer, primary consumer, secondary consumer and tertiary consumer
- A producer is an organism that produces its own food through photosynthesis eg plant
- A primary consumer eats producers
- A secondary consumer eats primary consumers
- A tertiary consumer eats secondary consumers.
What is a trophic level in food chain?
The levels of the food chain
What is symbiosis?
- The relationship between two species.
- In symbiotic relationships, at least one of the species involved benefits from the relationship.