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Worksheetsecology kremer
Total questions: 71
Worksheet time: 1hrs 2mins
Which of the following photosynthesize?
producers
consumers
decomposers
none of the above
What do most plants need for photosynthesis to occur?
carbon dioxide, water, and sunlight
oxygen, water, and sunlight
oxygen, carbon dioxide, and water
food, water, and sunlight
The category of decomposers includes:
fungi and bacteria
fungi and plants
animals and plants
none of the above
A food web shows the flow of ____ through an ecosystem.
consumers
energy
populations
none of the above
Ronnie decides to release her pet mouse into the woods behind her house. The possible tradeoffs of her decision include: A. her mouse may die in its new habitat B. she may have introduced a new species into the woods C. both A and B D. there are no trade-offs associated with her decision
a
b
c
d
Decomposers:
convert the sun’s energy into energy stored as food
convert the sun’s energy into energy stored as food
eat other living organisms for energy
break down dead and waste matter
Which of the following may affect the size of a fish population? A. availability of oxygen B. pollution C. both A and B D. none of the above
a
b
c
d
Which of these processes requires the direct input of sunlight to occur?
photosynthesis
decomposition
population fluctuation
predation
A new species of fish has been introduced into Lake Hiawatha. This fish eats minnows, a smaller fish that already live in the lake. What is most likely to happen to the population of minnows in Lake Hiawatha?
it will increase
it will decrease
it will stay the same
it will first increase, then decrease.
A new species of fish has been introduced into Lake Hiawatha. This fish eats minnows, a smaller fish that already live in the lake. What is most likely to happen to the population of the new species of fish in Lake Hiawatha?
it will increase
it will decrease
it will stay the same
it will first decrease, then increase
A new species of fish has been introduced into Lake Hiawatha. This fish eats minnows, a smaller fish that already live in the lake. The new species of fish has added another ____ to the lake.
producer
decomposer
consumer
none of the above
A new species of fish has been introduced into Lake Hiawatha. This fish eats minnows, a smaller fish that already live in the lake. The introduction of this new species of fish into Lake Hiawatha provides an example of:
competition
population fluctuation
predation
a trade-off
You decide you no longer want your exotic pet frog. The best way to deal with your unwanted frog is to:
leave it near a local pond
return it to the pet store
let it go free in your backyard
all of the above are good options
Which statement best describes an important difference between plants and animals?
Plants get food from the soil while animals get food by eating other organisms.
Animals are alive but plants are not
Plants use carbon dioxide from the air and water to make their own food while animals get food by eating other organisms.
Animals are made of cells but plants are not.
Which of the following is NOT an example of a producer
rose bush
grasshopper
apple tree
wheat
In order to survive, most organisms have specific requirements related to:
warmth
space
light
all of the above
The role of producers in an ecosystem is to:
convert the sun’s energy into energy stored as food
convert other organisms into energy
eat other living organisms for energy
break down dead and waste matter
Relationships in ecosystems are best represented by:
chains
webs
ribbons
circles
The word “ecosystem” refers to:
the physical environment
living organisms
living organisms and the physical environment
living organisms in the laboratory
Which of the following statements is TRUE? A. you can always predict what will happen when you release a new species into the wild B. new species will always add to the biodiversity of an area C. both A and B D. none of the above
a
b
c
d
The main reason some introduced species survive and overpopulate an area is that:
) there are few natural predators in the area
there is not enough food for other organisms
most organisms can survive in new habitats
people feed them
Which of the following is a population?
all of the animals in the same phylum
all of the garden snails that live in a specific garden
all of the species of plants and animals that live in a forest
none of the above
Every organism requires a certain amount of water, oxygen, and food. The natural environment that meets the needs of an organism is called its ____.
ecosystem
population
substrate
habitat
Which Biome has the most average rainfall every year
freshwater
Desert
Tundra
Tropical rainforest
What is a characteristic of the marine Biome
includes oceans, and coral reefs
includes lakes and rivers
contains raccoons
contains cedar trees
What is a threat of the Tundra Biome
clearcut logging
Oil, gas, and mining industries can disrupt
commercial fishing
clear cutting
What phyla are Vertebrates classified as?
flatworms
arthropods
cnidaria
chordates
an animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes is known as a
invertebrate
vertebrate
amphibian
annelid
Using the above scenario, which of these would have the largest amount of energy?
Which one is not a consumer?
anemone
bear
shark
vulture
The largest population an area can support is the areas
Limiting Factor
Birth Rate
Death Rate
Carrying Capacity
What would happen if a drought occurs and kills off most of the grass?
populations of all levels of consumers would decrease
primary consumers would have to adapt to eating each other
primary consumer would die then 2nd consumers would eat them
only population of the 2nd & higher consumers would decline
What is the job of the decomposers?
They are necessary part of the diet of most consumers.
Convert plant material into a form that 1st consumers use
make resources by breaking down waste materials
extract energy from sunlight
