A relationship between two organisms where one is helped and the other is harmed.
competition
mutualism
commensalism
parasitism
A relationship between two organisms where both organisms benefit.
mutualism
competition
parasitism
commensalism
A relationship between two organisms where one is helped and the other is unaffected.
parasitism
commensalism
competition
mutualism
Which of the following in NOT an example of a symbiotic relationship?
A mother bear caring for her cub.
A tapeworm living in a cow's intestines.
Bees eating nectar and pollinating flowers
A bird building a nest in a tree.
The harmed species in a parasitic relationship is called:
decomposer
consumer
parasite
host
An organism that causes ecological or economic harm in a new environment where it is not native.
Threatened Species
Invasive Species
Extinct 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.
Parasitism
Predator-Prey
Commensalism
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?
Parasitism
Mutualism
Commensalism
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
Mutualism
Commensalism
Predator-Prey
Ostriches and gazelles eat next to each other. They both watch out for danger.
Mutualism
Predator-Prey
Parasitism
Commensalism
Organism that is hunted and killed for food and nutrients
Producer
Decomposer
Prey
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 _________.
Consumer
Producer
Which organism in the food web is an omnivore?
trout
frogsalamander
snake
An organism that eats only plants.
herbivore
carnivore
decomposer
omnivore
