A relationship between two organisms where one is helped and the other is harmed.
parasitism
competition
commensalism
mutualism
A relationship between two organisms where both organisms benefit.
competition
commensalism
mutualism
parasitism
A relationship between two organisms where one is helped and the other is unaffected.
mutualism
competition
parasitism
commensalism
Which of the following in NOT an example of a symbiotic relationship?
A tapeworm living in a cow's intestines.
A mother bear caring for her cub.
Bees eating nectar and pollinating flowers
A bird building a nest in a tree.
The harmed species in a parasitic relationship is called:
parasite
decomposer
host
consumer
An organism that causes ecological or economic harm in a new environment where it is not native.
Extinct Species
Invasive Species
Endangered Species
Threatened 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.
Predator-Prey
Parasitism
Mutualism
Commensalism
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?
Commensalism
Mutualism
Parasitism
Predator-Prey
Hermit carbs live in snail shells that the snail has left behind. The crab gets a home and the snail is unaffected.
Parasitism
Predator-Prey
Commensalism
Mutualism
Ostriches and gazelles eat next to each other. They both watch out for danger.
Mutualism
Commensalism
Predator-Prey
Parasitism
Organism that is hunted and killed for food and nutrients
Producer
Prey
Decomposer
Predator
In a food web or food chain the arrow always points toward?
The eaten (prey)
The eater (predator)
Plants are producers because they make their own food. What is the prcocess plants use to make their own food?
transpiration
photosynthesis
symbiosis
respiration
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.
omnivore
carnivore
herbivore
decomposer
