A relationship between two organisms where one is helped and the other is harmed.
commensalism
competition
mutualism
parasitism
A relationship between two organisms where both organisms benefit.
mutualism
parasitism
competition
commensalism
A relationship between two organisms where one is helped and the other is unaffected.
commensalism
competition
mutualism
parasitism
Which of the following in NOT an example of a symbiotic relationship?
A bird building a nest in a tree.
Bees eating nectar and pollinating flowers
A mother bear caring for her cub.
A tapeworm living in a cow's intestines.
The harmed species in a parasitic relationship is called:
host
parasite
decomposer
consumer
An organism that causes ecological or economic harm in a new environment where it is not native.
Extinct Species
Invasive Species
Threatened Species
Endangered Species
Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.
Commensalism
Parasitism
Predator-Prey
Mutualism
The bacteria in our large intestine break down food that we consider waste. During this process, vitamins are released that we absorb into our bloodstream. This is an example of which symbiotic relationship?
Predator-Prey
Mutualism
Commensalism
Parasitism
Hermit carbs live in snail shells that the snail has left behind. The crab gets a home and the snail is unaffected.
Mutualism
Predator-Prey
Parasitism
Commensalism
Ostriches and gazelles eat next to each other. They both watch out for danger.
Mutualism
Commensalism
Parasitism
Predator-Prey
Organism that is hunted and killed for food and nutrients
Predator
Prey
Producer
Decomposer
In a food web or food chain the arrow always points toward?
The eater (predator)
The eaten (prey)
Plants are producers because they make their own food. What is the prcocess plants use to make their own food?
transpiration
respiration
photosynthesis
symbiosis
An organism that must eat to obtain energy is known as _________.
Producer
Consumer
Which organism in the food web is an omnivore?
frogsalamander
snake
trout
An organism that eats only plants.
herbivore
omnivore
decomposer
carnivore
