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WorksheetsCompetition in Ecosystems
Total questions: 30
Worksheet time: 3600secs
Not living, or produced by living things
Abiotic factors
Biotic factors
Ecosystem
Population
Living, or produced by living things
Biotic factor
Abiotic factor
Organisms
Competition
Hawks and owls eat the same type of food and struggle with one another to get their food. What is this an example of?
Competition
Biotic factor
Symbiosis
Population
The specific environment in which all the biotic and abiotic factors in an area interact.
Ecosystem
Organism
Struggle
Competitive Interaction
A self-contained living thing.
Organism
Population
Abiotic factor
Ecosystem
Two or more interacting individuals of the same species located in the same area.
Population
Community
Ecosystem
The YMCA
A source or supply from which benefits are produced.
Resources
Sam's Club
Dependent Interaction
Symbiosis
Hawks and brown bears live together in the same habitat. There will be competition between the hawks and the brown bears only if which of the following is true?
Brown bears hibernate during the winter while hawks remain active.
Pesticides in the fish population affect hawks’ eggs and decrease their population.
Both brown bears and hawks feed on the same species of fish.
Laws prevent humans from being able to hunt eagles or grizzly bears.
An increase in which of the following factors is likely to contribute to competition between two members of the same species living in a certain habitat?
Available food resources
Population of the species
Annual snowfall
Overall size of the habitat
The population of deer in a certain area is monitored over a period of six years. The data is represented in the graph provided. Which of the following is the most likely explanation for the change in population in 2009?
Wild dogs, which prey on deer, were being hunted more than usual.
Snowfall in the previous spring was higher than the yearly average.
Humans introduced grazing animals that feed on the same plants as the deer.
More insects that pollinate flowering plants move into the ecosystem.
A student wants to investigate competition between two organisms. For the investigation, it is most important that the student should choose organisms that –
reproduce at a faster rate.
are both active during the night.
have the different adaptations.
require the same resources.
Competition becomes more important as the number of individuals ______ or the availability of resources _________.
increases, decreases
increases, increases
decreases, increases
decreases, decreases
In an ecosystem, what do organisms and populations with similar needs compete over?
food
water
shelter
all of the above
Which of the following lists contains only abiotic factors?
water, air, temperature
grass, air, people
trees, fish, polar bears
grass, water, sand
Rabbits live in a certain ecosystem where they are hunted by both hawks and coyotes. What would NOT cause a reduction in the rabbit population?
A drought that reduces the food source for the rabbits
A disease that affects the rabbit population
A housing development being built in the rabbits’ habitat
A reduction in the population of both hawks and coyotes
In a certain ecosystem, foxes and snakes prey on the same species of rabbit. What would increase the competition between the foxes and the snakes?
A reduction in the number of rabbits in the ecosystem
An increase in population of foxes and snakes
A reduction in the size of the habitat for the foxes, snakes, and rabbits
All of the above
What are some examples of resources that plants compete for?
Space, water, and animals
Carbon dioxide, sugar, and temperature
Water, light, and carbon dioxide
Water, light, and space
What is another word for something that is ALIVE or was ONCE LIVING
Biotic
Abiotic
What is another word for something that was NEVER ALIVE?
Biotic
Abiotc
Is this ROCK BIOTIC or ABIOTIC?
Abiotic
Biotic
Is this PLANT BIOTIC or ABIOITC?
Abiotic
Biotic
Which would not increase competition in an ecosystem?
population of an organism increases
invasive species that uses the same resources move in
a disease kills many organisms in an ecosystem
Human activity reduces the size of an ecosystem
What will happen if a resource that a species is dependent on decreases?
The species will also decrease
The species will increase
nothing
What is a dependent interaction?
when an organism depends on a factor for survival
something in math
an interaction that doesn't depend on anything
An observation using words to describe something
hypothesis
data
qualatative
quantitative
