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WorksheetsQuarter 3 Let's Get Ready for the Test
Total questions: 33
Worksheet time: 17mins
A disease reduces the number of young salmon in a river. Which populations will MOST likely increase as a result?
trout and eagle
algae and trout
otter and sculpin
sculpin and algae
How are estuary and ocean ecosystems similar?
They both have rich soil.
They both contain salt water.
They both support a lot of plant life.
They both have extremely cold temperatures.
Which best describes an ecosystem?
a kingdom of animals
all the life on a specific continent
a community of plants and animals and nonliving factors
nonliving factors
Which two organisms in the food chain shown are carnivorous?
grass and grasshopper
grasshopper and mouse
mouse and owl
grasshopper and owl
Using the diagram, which is MOST LIKELY true?
The Sun directly provides energy to the heron.
The oysters find shelter in the cordgrass.
The marsh crab uses the terrapin for food.
The cordgrass provides shelter for the periwinkle snail.
Which pair of organisms benefits (helps) each other the MOST?
birds building a nest in a bush
worms eating the roots of a plant
squirrels burying seeds from a tree
deer scraping their antlers on a tree
How would the woodpecker population in a forest area most likely be affected if a housing development is built in that area?
They would produce more offspring.
They would change the color of their feathers.
They would experience a decrease in available food.
They would experience a decrease in competition.
Which will most likely cause a decrease in predator populations?
an increase in prey populations
a decrease in prey populations
a decrease in decomposers
an increase in producers
A rabbit eats a variety of plants in an ecosystem. Which best describes the effect a drought would have on both rabbits and plants in an ecosystem?
Both populations would increase.
Both populations would decrease.
Plant life would decrease and the rabbit population would increase.
Plant life would increase and the rabbit population would decrease.
A zebra eats grass and then is eaten by a lion. Which is the predator in this situation?
grass
zebra
lion
the sun
Which is most responsible for recycling dead plants and animals in an ecosystem?
water
bacteria
fish
insects
Marco caught a blue crab while he was at the beach with his family. He wanted to take it home and place it in his pond, but was told the crab would not survive. What is the MOST likely reason the crab needs the ocean to survive?
There is more sunlight.
There are fewer predators.
The crab needs less oxygen.
The crab needs salt water.
Screech owls nest in holes in trees. They eat mice and crickets. Where would a screech owl MOST likely live?
a beach
a forest
a desert
a tundra
Which marine ecosystem would be best for organisms that can adapt to both saltwater and freshwater?
estuary
lake
pond
ocean
Which type of organism converts energy from the sun into organic material?
producers
primary consumers
secondary consumers
decomposers
An energy pyramid shows that less food and energy is available moving from the bottom to the top. Based on this model, where would producers be located on the energy pyramid?
Level 1
Level 2
Level 3
Level 4
Which group lists only decomposers?
tadpoles, frogs, and algae
detritus, crayfish, and turtles
bacteria, earthworms, and fungi
cattails, snowy egrets, and black flies
How are the tropical rainforest and pond ecosystems similar?
They both have large amounts of trees.
They both have producers and consumers
They both have the same plants and animals.
They are both found in cold climates.
What would most likely happen to producers if clouds constantly blocked the sun’s rays?
Producers would move to another environment.
Producers would no longer release carbon dioxide.
Producers would rely on other sources for energy.
Producers would be less able to provide energy for other organisms.
European starlings are birds that take over the nests of other birds. When they move into an area, starlings reproduce quickly. Taking over the nests of other birds MOST likely increases the number of starlings by helping them to do what?
attract a better mate
compete for resources
migrate during the winter
blend in with the environment
Which best explains why the sun is important to all ecosystems?
It is the center of the solar system.
It gives radiation that heats the Earth.
Producers rely upon it to make their food.
Consumers rely upon it to find their food.
Which would be most harmful to sea plants living near the surface of the ocean?
a decrease in available sunlight
an increase is available sunlight
an increase in the number of carnivores moving into the area
a decrease in the number of decomposers moving into the area
Kodiak bears live in a certain part of southwestern Alaska. How would decreasing the size of the habitats for territorial animals like Kodiak bears most likely affect them?
They would become herbivores.
They would become endangered.
They would move to another territory.
They would have cubs in other locations.
Which ecosystem has lifeforms most similar to those of the ocean?
estuary
lake
river
swamp
Which organism is a decomposer?
fungus
ladybug
spider
sunflower
Which will most likely result if large areas of trees in a forest are removed to build neighborhoods?
There would be an increase in the loss of habitats.
There would be an increase in the number of predators.
There would be an increase in food resources for animals.
There would be an increase in the number species of plants.
Which characteristic, inherited from a dog’s parents, would most likely increase its ability to protect its owner?
the dog’s fur color
the dog's grooming
the dog's ability to bark
the dog's ability to learn tricks
Which statement best describes why most organisms in a species carry out life processes similarly?
Life processes that are specific to a species are passed from parents to their offspring.
Life processes that are specific to a species are passed from offspring to their parents.
Life processes that are specific to a species are passed from the environment to the organisms.
Life processes that are specific to a species are passed from the organisms to the environment.
Matt is a tall, eleven-year-old boy. He has a scar on his right cheek. He is intelligent and an excellent drummer. Which of his traits did he most likely inherit?
his height
his scar on his right cheek
his intelligence
his ability to play the drums
John observes two frogs sitting on a log in the forest. Both frogs are green with black dots on their backs. Which most likely explains why the two frogs have similar appearances?
The frogs eat the same food.
The frogs live in the same habitat.
The frogs are sitting on the same log.
The frogs are members of the same population.
A deer inherits some of its features from its parents. Other features come from its environment. Which feature would a deer MOST likely inherit from its parents?
a long scar
missing teeth
brown eyes
a broken antler
The picture shows an African Grey parrot named Alex. Facts are listed beside this parrot. Which fact BEST describes an inherited trait of this parrot?
Has grey feathers
Has a scratched beak
Says “Good morning”
Recognizes numbers up to six
Which of these is an inherited trait?
dimples
long hair
the ability to drive
favorite color
