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WorksheetsEcosystem Dynamics
Total questions: 20
Worksheet time: 10mins
Which of the following are NOT true about ecosystems?
Biotic and abiotic factors depend on each other
Each ecosystem is made from an environment which is all the abiotic factors
Biotic factors include plants, fungi, animals and bacteria.
Abiotic factors include plants, fungi, animals and bacteria.
What is the best definition of diversity?
The different kinds of species in an ecosystem
The different types of the same species showing minor differences.
The different biotic factors in an ecosystem
The different kinds of insects like butterflies, beetles and moths
What is the difference between populations and communities?
A population is the different communities together in an ecosystem.
A community is the different populations together in an ecosystem.
A community is made of the same species within an ecosystem.
A population is a number of organisms of the same species within an ecosystem
What do we know is NOT true about the keystone species.
It is always the producer because it makes all the energy
it is any species that has the most significance
It keeps the primary consumers from overeating the producers
It saves the ecosystem from collapse
Which of the following do we not identify in a biome description?
weather and climate
Geological locations on Earth
The types of landforms that shape the biome
The different species interactions
Which of the following is NOT true about food webs?
Energy transfers from predator to prey
Arrows signify the movement of energy to consumer
There can be many consumers that eat a to a producer
There can be many producers that get eaten by a consumer
Which of the following is true about the APEX predator?
It has common predators
It is near the top of the food chain
it is a primary consumer
its diet is mainly other consumers and not producers
What do we know about this species interaction: MUTUALISM?
When one species benefits and the other is harmed
When one species benefits and the other is not harmed
When one species benefits and the other is not harmed or benefits
When one species benefits and helps the other benefit too.
What do we know about this species interaction: COMMENSALISM
When one species benefits and the other is harmed
When one species benefits and the other is not harmed
When one species benefits and the other is not harmed or benefits
When one species benefits and helps the other benefit too.
What do we know about this species interaction: PARASITISM
When one species benefits and the other is harmed
When one species benefits and the other is not harmed
When one species benefits and the other is not harmed or benefits
When one species benefits and helps the other benefit too.
Predation is when one species preys on another for food and energy. Which of the following is best related to predation?
Commensalism
Mutualism
Parasitism
Symbiosis
Another term for human impact is?
Natural Disasters
Anthropogenic Effects
Deforestation
Wildlife Conservation
Which of the following is not a direct result of human impact?
Poaching animals for fur
forest fires caused by nature
pollution of air, water and land
clearing landscape due to city expansion
Which of the following is NOT an example of a producer?
Algae
Plants and grasses
phytoplankton
bacteria
Which of the following best describes: when a species has a unique roll in the ecosystem; something they help their environment do.
niche
habitat
diet
shelter
Which classification gets energy from decomposition of dead organisms?
Herbivore
Carnivore
Omnivore
Detritivore
Which of the following is a Natural Disaster?
Pollution
Introduction of Invasive Species
Volcanic Eruptions
Removal of Native Species
Which of the following best describes invasive species?
An organism that steals necessary resources from native species.
An organism that steals food and nutrients from native species.
An organism that steals room and shelter from native species.
All of the above
Which of the following would harm the ecosystem most?
When the producer species population increases above carrying capacity
When the consumer species population decreases under carrying capacity
When the consumer species population increases above carrying capacity
When the producer and consumer species populations maintain carrying capacity
Which of these do not support Wildlife Conservation Efforts of Ecosystems?
When the government placed sanctions on endangered species.
When hunting laws protect poachers from being incriminated.
When the government funds programs to create protections for species.
When people post signs with information about preserving species habitat.
