WorksheetsPart of & Resources in Ecosystems
Total questions: 20
Worksheet time: 2hrs 40mins
What might happen to the ecosystem if the hunting season was canceled (set to zero days)?
The producers would overpopulate
The hunted animal would overpopulate and increase competition
There would be less competition for food
The ecosystem would remain balanced
This graph shows how the amount of meat the world eats has changed over time. How could this affect the supply of food AND Earth's natural resources?
The supply of food will decrease. The amount of resources will increase.
The supply of food will increase. The amount of resources will decrease.
Both the supply of food and Earth's natural resources will increase.
Both the supply of food and Earth's natural resources will decrease.
This graph shows how the amount of meat the world eats has changed over time. Describe the trend that this graph shows.
The supply of food is increasing
Humans are eating more meat than ever before, so the supply of food will decrease.
Humans are eating the same amount of meat as always, so the supply of food is going to increase
The most popular type of meat is poultry, but the amount of chickens cannot support the human population in many countries.
This graph shows how the population in the United States has changed over time.
The population has steadily decreased over time
The population has steadily increased over time
The population increased and then decreased
The population decreased and then increased
If the population of the United States increases, how might this affect the Earth's natural resources?
We won't need as much food so there will be more natural resources
We will need to use more natural resources to raise more animals for a larger food supply
We will need to use more natural resources since we will not need as many animals
The animals will overpopulate since no one will be eating them. This will cause a decrease in the amount of Earth's natural resources.
What happens when the population of prey decreases?
The population of predator will increase
The population of predator will increase and then decrease
The population of predator will not be affected
The population of predator will decrease shortly after
How are the populations of predators and prey related?
If there is not enough prey, the predators will die out
If there is too much prey, the predators will die out
If there are not any predators, the prey will die out
If there are too many predators, the prey will overpopulate
How are ecosystems disrupted?
Due to the care and excessive maintenances of natural spaces.
As a result of creating new natural resources.
Due to the occupation, pollution and destruction of natural spaces.
When does the extinction of a species occur?
When there are only five individuals left.
When the youngest individuals die, but the adults remain.
When the last individual dies.
FIrst and 3rd option are right.
What is the correct definition of a population.
Groups of individuals of the same species.
Made up of the different populations living together.
All the organisms living in a habitat AND the non-living parts of the habitats e.g. an ocean.
Trying to get enough resources.
Which of the following factors do plants compete for?
Light, space, water & mates
Water, mates, space & mineral ions
Space, water, mineral ions & light
Which of the following is a list of abiotic factors?
light intensity, predators, pH levels
temperature, moisture levels, oxygen levels
pathogens, soil pH, light intensity
Acorn → Squirrel → Fox → Mountain Lion
What will most likely happen if squirrels are removed from the food chain?
How do the population sizes of predator & prey change in a stable community?
The size of the predator population continuously increases.
The size of the prey population continuously decreases.
The sizes of both populations rise and fall in cycles.
An area where all biotic and abiotic factors interact in some way, characterized by weather, climate, and different species of plants and animals living there.
ecology
ecosystem
ecoland
plate tectonics
A pack of hyenas is roaming a savannah in search for some tasty antelope. African painted dogs, another predatory species, are also on the lookout for the same snack. Prey is becoming scarce, and the only option is to fight for hunting territory. This interaction between the hyenas and African painted dogs is known as:
Predatory
Mutually beneficial
Competitive
Parasitic
Factors that organisms depend on for survival that may become scarce when there is an increase in competition for them are called:
abiotic
biotic
limited resources
interactions
Bat rays, bottle-nosed dolphins, and sharks are all examples of _____________ within a marine ecosystem.
resources
biodiversity
abiotic factors
swimming buddies
When the hare population increased, what happened to the lynx population?
It increased.
It decreased.
It stayed the same.
