Vocabulary
Populations
Food Chain
Food Web
Eaters
100
a scientist who studies the interactions of organisms with each other and their environment
Ecologist
100
A population of monkeys lives in Brazil. Over 25 years, the size of the monkey population increased. What best explains the increase in the size of the monkey population?
More monkeys were born than died.
100
Grass>Cricket>Mouse
The data showed that all three populations were stable. Then the mouse population decreased suddenly. What will most likely happen to the size of the cricket population as a result
Increase. This will lead to fewer deaths than births in the cricket population.
100
Living organisms that make their own food
Producers
100
a human that only eats producers
vegetarian
200
organisms that eat other organisms from another population
consumer population
200
A population of blowfish lives in the Gulf of Mexico. Over the last 30 years, the size of the blowfish population has decreased. What best explains the decrease in the size of the blowfish population?
Fewer bluefish were born than died
200
In this ecosystem, cheetahs eat gazelles, and gazelles eat wild grasses. The data showed that all three populations were stable. Then the wild grass population decreased suddenly. What will likely happen to the size of the gazelle population as a result?
Decrease. The smaller wild grass population will provide fewer energy storage molecules (Less Energy)for the gazelle population, so the gazelle population will reproduce less. This will lead to fewer births than deaths in the gazelle population.
200
The type of consumer that eats plants
Primary Consumer
200
eats only meat
carnivore
300
organisms of the same type living in the same area
Population
300
A large population of eagles lives in an area with a lake. In the last 40 years, the size of the eagle population has stayed the same. What must be true about the eagle population during the last 40 years?
The number of eagle that were born was the same as the number of eagles that died.
300
In this ecosystem, herons (a type of bird) eat frogs, and frogs eat dragonflies. The data showed that all three populations were stable. Then the dragonfly population increased suddenly. What will likely happen to the frog population as a result?
Increase. The larger dragonfly population will provide more energy storage molecules (More Energy) for the frog population, so they will reproduce more. This will lead to more births than deaths in the frog population.
300
What would happen to the red fox, beetle, and tree population if the frogs disappeared
Fox: Decrease
Beetle: Increase
Tree: Decrease
300
Eats only plants
herbivore
400
when something stays mostly the same over time
Stability
400
A population of mice live in the East Haven. Over the last 34 years, the size of the mouse population decreased. What best explains the decrease in the size of the mouse population?
Fewer mice were born than died.
400
In the Arctic region, polar bears eat seals, and seals eat cod (a type of fish). In the last 7 years, the sizes of all the populations stayed stable, but recently the size of the polar bear population decreased. What will likely happen to the cod population?
Decrease. The smaller polar bear population will lead to more seals. The larger seal population will eat more cod. This will lead to more deaths than births in the cod population.
400
Who are the Apex predators
Wolf,Red Fox, Black Bear
400
Eats dead things
scavenger
500
a molecule that organisms can use to release the energy they need to survive
Energy Storage Molecules
500
Why are eagles, bears, and wolves have a higher birth rate than death rate
they have no natural enemies
500
Both bears and eagles eat trout. The sizes of the populations have been stable for the last 67 years, but recently the size of the eagle population decreased. What will likely happen to the bear population?
Increase. The larger trout population, so the bear population will reproduce more. This will lead to more births than deaths in the bear population
500
What do Hawks eat?
field mouse
quail
beetle
squirrel
500
Eats plants and animals
Omnivore