When two organisms live in close relation to each other
What is symbiosis
A single line of energy transfer is called a food _____________.
What is a chain
A single living thing
What is an organism
an organism that can make its own food by using energy from sunlight (starts with an a)
What is autotroph
what is a population
on organism that in non-native and that threatens other ecosystems
What is an invasive species
All of the biomes on Earth is called the ___________________
Biosphere
Organisms that make up the base of food chains or food webs
What is a primary producer
In a food web, energy is constantly being _______________ among many different organisms
What is transferred
The abiotic and the biotic factors in an environment that interact in order to survive
What is an ecosystem
an organism that gets its energy from eating other organisms (starts with an H)
What is heterotroph
a relationship in which organisms fight for resources
What is competition
The ______________ of an ecosystem generally predicts its carrying capacity.
What is size
A group of different populations living together in the same place at the same time
What is a community