WorksheetsUnit 7 Review
Total questions: 34
Worksheet time: 18mins
What is an example of an abiotic factor in an ecosystem?
a rabbit
water
a mushroom
a bacteria
Adult snakes prey on mice. Which type of consumer is the snake?
producer
carnivore
herbivore
parasite
Hunters come in and kill most of the ducks. How does it affect the population of algae and floating plants?
increases
decreases
remains the same
varies with no pattern
Which group has the most energy available?
A
B
C
D
What are organisms that obtain nutrients by breaking down dead and decaying plants and animals called?
decomposers
omnivores
autotrophs
carnivores
What is an organism that can make its own food called?
autotroph
consumer
decomposer
heterotroph
A bear, who get their energy from both plants and animal, would be best classified as an ...
Herbivore
Omnivore
Carnivore
Autotroph
A jaguar is know in a certain forest for eating the Pink Lady Bird. The Pink Lady Bird is also a cleaner bird and will regularly sit on Hippos to clean their ears of bugs. What is the relationship between the Pink Lady Bird and the Hippo?
Mutualism
Commensalism
Predator/Prey
Parasitism
A silk worm is kept by a certain species of ants. The silk worm is used by the ants to built a home in the trees for the ants. The ants gain materials to build their home and the silk worm is neither helped nor hurt. What is the relationship between the silk worm and the ants?
Commensalism
Predator/Prey
Mutualism
Parasitism
A certain fungus will spread its spores by controlling its host insect to climb to the tallest point it can before its head bursts, spraying spores everywhere. The fungus gets to spread its spores but the insect host dies. What kind of relationship is this?
Predator/Prey
Mutualism
Parasitism
Commensalism
A certain place has a population of birds, a population of coyotes, and a population of trees. When we include the snowy landscape, freezing temperatures, and frozen lake. What level of organization would this place be?
Ecosystem
Community
Individual
Population
At what level would an herbivore be within the blank food pyramid below?
1
2
3
4
A pride or group lions living in a certain place would best be an example of which level of organization?
Biome
Ecosystem
Population
Individual
Match the following levels of classification to their definitions:
1 individual
Organism
All the same species
Population
All the different living things
Community
All the biotic and abiotic things
Ecosystem
The number of trout in a stream
Population size
The size of a population of bears in a certain area
Population density
How people or organisms are spread out in an area
Population dispersion
Carrying capacity is the (a) number of organisms that can survive in an area based on the available (b) , such as food and water.
What is the process by which organisms maintain a stable internal environment?
Metabolism
Homeostasis
Respiration
Photosynthesis
What is the term used to describe a group of the same species living in the same area?
Community
Population
Ecosystem
Habitat
In the energy pyramid here, which organisms have the most energy available?
Producers
Carnivores
Herbivores
Top Predator
What is biodiversity?
The recycling of nutrients in an ecosystem
The number of species within a specific habitat
The study of how human actions affect the environment
The migration patterns of animals across different ecosystems
What can lead to a decrease in biodiversity?
Natural disasters
Habitat destruction
Pollution
All of the above
What is an ecosystem?
The interactions among living and non-living things in an environment.
A type of organism that can only be seen with a microscope.
A bunch of moving parts that do work.
The newest craze in social media.
Which of the following is an example of a decomposer?
Lion
Oak Tree
Mushroom
Grasshopper
Something that regulates the size of a population is called...
a limiting measure
a limiting factor
carrying capacity
biodiversity
Why is biodiversity important to an ecosystem?
It ensures that ecosystems are more productive and can withstand and recover from disasters
It allows for a greater variety of crops to be planted each year
It ensures that all organisms have the same chance of survival
It decreases the amount of resources available, increasing competition
In the energy pyramid below, which organism has the least amount of energy available?
Producers
Herbivores
Carnivores
Top Predator
In a food chain, which level is directly above primary consumers?
Secondary consumers
Tertiary consumers
Producers
Decomposers
Whish habitat has the highest biodiversity?
Area A
Area B
Area C
Area D
What happens if a population grows past its carrying capacity?
The population keeps growing
The population starts to die off
The entire species will go extinct
The carrying capacity just increases
The flow of energy in a grassland ecosystem is shown. Based on the diagram, which two populations best represent trophic levels that receive the LEAST amount of the total energy provided to the ecosystem by the grass?
Crickets and sparrows
Toads and spiders
Rabbits and mice
Hognose snakes and owls
Which answer choice best describes a community?
A lion caring for their young
Fish living in estuaries
Different species of lizards and snakes occupying the same environment in a desert
Mother bats recognizing their offspring
A partial Texas food web is shown. The populations of which organisms will most likely increase as a result of a disease that suddenly reduced the population of Texas horned lizards?
Grasses and ants
Ants and grasshoppers
Grasshoppers and Texas cottonmouths
Texas cottonmouths and red-shouldered hawks
Which one of the factors on the graph is considered a density independent factor (natural occurrence)?
Habitat destruction
Diseases
Weather
Overexploitation
What does letter A represent on the graph?
Exponential Growth
Logistical Growth
Parabolic Growth
