Topic K (Ecology) Flashcards
What is ecology?
The study of organisms and their relationship with each other and the environment
What % energy is passed onto the next trophic level?
10%
How is energy lost?(5)
1) Uneaten parts
2) Undigested parts
3) Heat produced in respiration
4) Movement
5) Waste products/ Egestion
Predator
Something that eats prey
Population
A collection of the same species
Producer
Something, which produces its own food
Quadrat
A square object usually used to sample plant
Consumer
Cannot produce its own food and eats other species (plant or animal)
Ecosystem
This is made up of all the living organisms and the conditions in which they live
Habitat
Where something lives
Trophic level
A common feeding stage in a food chain
Biological control
When we use one species to control an infestation of another species
Carbon cycle
Describes the movement of carbon in an ecosystem
Competition
When organism fight for resources we say they are in competition with each other
Food chain
Relates what eats what in a lineal fashion
Egestion
Removal of faeces
Excretion
Removal of waste products of metabolism
Metabolism
The chemical reactions that occur in cells
Who are primary consumers?
Animals who eat the producers
What is dry mass?
Dry mass is everything in the plant or animal except water
Why is biomass called this way?
It is made by living organisms
Why is dry mass contain?
It is mostly carbohydrates, proteins and fats
What % of cow’s food is lost as heat in respiration?
33%
What % of cow’s food is energy lost in waste?
63%
What % of cow’s food is used for growth?
4%