What is likely to happen to the population of thrushes if the population of slugs increases?
It will stay the same.
It will decrease.
It will increase.
Which organism in the food web is an omnivore?
frogsalamander
snake
trout
An organism that eats only meat.
carnivore
herbivore
omnivore
decomposer
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
Decomposers are important in the food chain because they ___________.
are microscopic and other organisms can't consume them.
break down dead organisms & recycle nutrients into the soil.
produce their own food using light from the sun.
stop the flow of energy from one organism to another.
Hermit carbs live in snail shells that the snail has left behind. The crab gets a home and the snail is unaffected.
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
Parasitism
Predator-Prey
Mutualism
Energy from the plantain is transferred to the frog through which organsim?
greenfly
ladybird
butterfly
grasshopper
Which organism receives the least amount of energy from the producers?
Rabbit
Grasshopper
Mouse
Hawk
A relationship between two organisms where one is helped and the other is unaffected.
parasitism
commensalism
mutualism
competition
What is likely to happen to the population of foxes if the population of rabbits decreases?
It will increase.
It will decrease.
It will stay the same.
An organism that must eat to obtain energy is known as _________.
Consumer
Producer
Plants are producers because they make their own food. What is the prcocess plants use to make their own food?
photosynthesis
transpiration
respiration
symbiosis
Ostriches and gazelles eat next to each other. They both watch out for danger.
Commensalism
Parasitism
Mutualism
Predator-Prey
A relationship between two organisms where both organisms benefit.
commensalism
mutualism
competition
parasitism
What do the arrows in a food chain show?
The transfer of energy
What eats what
How many organisms are present
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
Mutualism
Predator-Prey
An organism that eats only meat.
carnivore
omnivore
herbivore
decomposer
An organism that eats only plants.
decomposer
herbivore
carnivore
omnivore
How many prey does the fox have?
4
1
2
3
Organism that is hunted and killed for food and nutrients
Predator
Decomposer
Prey
Producer
In a food web or food chain the arrow always points toward?
The eater (predator)
The eaten (prey)
The harmed species in a parasitic relationship is called:
decomposer
parasite
consumer
host
A relationship between two organisms where one is helped and the other is harmed.
parasitism
competition
commensalism
mutualism
Which of the following in NOT an example of a symbiotic relationship?
Bees eating nectar and pollinating flowers
A mother bear caring for her cub.
A bird building a nest in a tree.
A tapeworm living in a cow's intestines.