A relationship between two organisms where one is helped and the other is harmed.
commensalism
parasitism
competition
mutualism
A relationship between two organisms where both organisms benefit.
parasitism
mutualism
competition
commensalism
A relationship between two organisms where one is helped and the other is unaffected.
commensalism
parasitism
mutualism
competition
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:
consumer
decomposer
parasite
host
An organism that causes ecological or economic harm in a new environment where it is not native.
Invasive Species
Extinct 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?
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.
Commensalism
Parasitism
Predator-Prey
Mutualism
Ostriches and gazelles eat next to each other. They both watch out for danger.
Commensalism
Mutualism
Predator-Prey
Parasitism
Organism that is hunted and killed for food and nutrients
Decomposer
Producer
Predator
Prey
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?
respiration
symbiosis
transpiration
photosynthesis
An organism that must eat to obtain energy is known as _________.
Consumer
Producer
Which organism in the food web is an omnivore?
snake
trout
frogsalamander
An organism that eats only plants.
carnivore
decomposer
omnivore
herbivore
