Ecology Basics
What term means a single living thing?
organism
This organism makes their own food _________.
Autotroph
What is a close relationship between two different species called?
symbiosis
What type of animal eats only plants?
Herbivore
What is it called when one organism hunts and eats another organism
Predation
What includes all the different populations living in the same area?
community
Which organisms must get their own food by consuming other organisms?
Heterotrophs
What type of symbiosis benefits one organisms while the other is not helped or harmed?
Commensalism
What shows the movement of energy from one organism to another through feeding?
food chain
In a predator-prey relationship, what is the organisms that is hunted called?
prey
What is a large region in a particular climate, plants, and animals?
biome
What type of consumer eats both plants and animals?
omnivore
Bees get nectar from flowers while helping flowers reproduce. This relationship is called _______.
mutualism
What are the different feeding positions in a food chain called?
trophic levels
The species that has a very large effect on its ecosystem compared with its population size is called ________.
Keystone species
What includes living organisms and the nonliving parts of their environment?
Ecosystem
What is another name for an organism that makes its own food?
producer
A tick gets food from a dog while harming the dog. What type of relationship is this?
parasatism
What type of animal eats other animals?
carnivore
What happens when a harmful chemical becomes more concentrated at higher trophic levels?
biomagnification
A pond contains fish, plants, insects, water, sunlight, and soil. What level of organization does this describe?
Ecosystem
What is an organism called when it gets energy by eating other organisms?
consumer
Name the 3 types of ecosystem interactions
parasatism, commensalism, mutualism
In the food chain grass-grasshopper-frog-snake, which organism is at the second trophic level?
grasshopper
Why can biomagnification be especially harmful to organisms at the top of the food chain?
They can accumulate higher concentrations of harmful chemicals.