WorksheetsEcosystems Study Guide
Total questions: 44
Worksheet time: 25mins
What is an example of an abiotic factor?
amount of fruit on trees
tree bark
air pollution
fish population
What are herbivores?
animals that eat only meat
plants that use the sun to get their energy
animals that only eat plants
Producers are:
nonliving parts of an ecosystem
all the living or once-living parts of an ecosystem
green plants using the energy in sunlight to make their own food
considered autotrophs because they make their own food
Consumers: (mark all that are true)
organisms that must get energy by eating other organisms
consume and break down dead things into basic nutrients needed for plants
can be divided into herbivores, carnivores and omnivores
all the non-living parts of an ecosystem
A consumer that eats only insects are:
herbivores
biotic
carnivores
abiotic
Examples of abiotic factors are:
bird migrations
soil depth
amount of sunlight
ant hills
Examples of Decomposers that one might discover in different ecosystems are:
earthworms that feed on dead animals
fungi
jackals
bacteria
Omnivores are:
consumers that eat only plants
consumers that eat only meat
consumers that break down dead things into basic nutrients needed for plants
consumers that eat both plants and animals
The hermit moving into an empty seashell is an example of what kind of symbiotic relationship?
parasitism
abioticism
commensalism
mutualism
Commensalism is the symbiotic relationship where:
one organism benefits and the other is harmed
one organism benefits and the other is not helped or harmed
both organisms in the relationship benefit
the amount of sunlight benefits the trees
Parasitism is the type of symbiotic relationship where:
one organism benefits and the other is harmed or killed
one organism benefits and the other is not harmed
both organisms benefit from each other
lightning kills someone
Mutualism is a symbiotic relationship where:
the stream runs through a dry pasture and waters the crops
both organisms in the relationship benefit
one organism benefits and the other is harmed
one organism benefits and the other is not harmed
Fleas starting to live on a dog and feeding on its blood is an example of what type of symbiotic relationship?
commensalism
mutualism
commercialism
parasitism
Oxpeckers (a type of bird) eat ticks and parasites that live and feed on zebras. This is an example of what type of symbiotic relationship?
commensalism
monotheism
mutualism
parasitism
Dogs and humans live in the same habitat. They provide companionship for one another. This is an example of which symbiotic relationship?
commensalism
monasticism
parasitism
mutualism
Golden Jackals that are no longer in a pack will follow tigers in order to feed on the remains of their kills. This is an example of which symbiotic relationship?
commercialism
commensalism
parasitism
mutualism
Cowbirds find nests of other birds, damage the other bird’s eggs, and lay their own eggs there. This is an example of which type of symbiotic relationship?
pragmatism
pacifism
polytheism
parasitism
Which are autotrophs (make their own food)?
herbivores
consumers
producers
decomposers
The base of any food web are:
the producers
the primary consumers
the apex predator
the decomposers
The trophic level of an organism is the position it holds in a:
cell
ecosystem
food chain
biome
The correct order starting from WHAT IS EATEN to WHAT IS NOT HUNTED OR PREYED UPON in a food chain is:
primary consumer, tertiary consumer, producer, predator
apex predator, tertiary consumer, secondary consumer, primary consumer, producer
producer, primary consumer, secondary consumer, tertiary consumer, apex predator
primary consumer, producer, apex predator, tertiary consumer, secondary consumer
Energy is ________ as it moves through a food chain.
gained
lost
doubled
tripled
As energy moves through a food chain, the amount of matter (meaning the raw material) that is passed from organism to organism _____________.
decreases
increases
stays the same
crystalizes
If grass is the producer in a grassland biome, and grasshoppers eat grass, they are called?
secondary consumers
primary consumers
predators
omnivores
In a pond biome, algae gets its energy from the sun; mosquito larva eat algae, dragonfly larva eat mosquitos, and fish eat dragonflies. What are the algae and the fish in this food chain?
producers, primary consumers
producers, secondary consumers
producers, tertiary consumers
producers, quaternary consumers
The type of predator that has no predator above it are called?
auto-predators
awesome predators
amazing predators
apex predators
Biotic factors: All the living or __________-living things in an ecosystem.
non
pro
once
always
Examples of biotic factors are: (choose all that apply)
soil
water
fallen trees
parrots
Trees and their berries are:
an example of abiotic factors
an example of biotic factors
All the members of one species that live in an area (for example: all the cats in Hann Mariste or all the humans in Dakar) are called what in ecosystem vocabulary?
the communities
the population
the factors
the biomes
What is the name of the biotic factor which are "all the populations living in an ecosystem at the same time".
cities
villages
communities
biomes
In ecology, all the populations of trees, worms, insects, and toads are part of a forest ________________.
village
community
atmosphere
get-together
In Ecology, a group of plants and animals that have common characteristics for the environment that they live in is called?
biotic factor
food web
biome
atmosphere
A community of living things interacting with each other and their non-living environment.
biome
population
ecosystem
community
What makes up an ecosystem?
only all the living things
all the living things and non-living things
only all the non-living things
It depends
Saltwater vs. fresh water is an example of a(n):
abiotic factor
biotic factor
food web
biome
Soil (an abiotic factor) may affect an ecosystem in which of the following ways: (choose all that apply)
the depth of the soil
the texture of the soil
the ability of the soil to hold moisture
the amount and types of nutrients, rocks and minerals in the soil
In a food web, energy flows from:
consumer to producer
producer to consumer
predator to prey
The largest population an ecosystem can support with its resources is:
the biotic factor
the limiting factor
carrying capacity
the abiotic factor
In Ecology, anything that prevents a population from growing is:
a carrying capacity
an abiotic factor
a limiting factor
a biotic factor
In Alaska, grizzly bears must eat 10 fish and drink up to 25 liters of water to live. A
local river can provide about 150 fish a day without damaging the fish population.
What is the limiting factor for this population? Answer: the number of (a)
In Alaska, grizzly bears must eat 10 fish and drink up to 25 liters of water to live. A
local river can provide about 150 fish a day without damaging the fish population.
How many bears can this area support?
(a)
The amount of space in which a seedling grows determines whether or not that tree
will be able to collect enough sunlight, water, and soil nutrients that it needs to live.
Although many small plants may sprout in a forest, many will die as they are crowded
out by more mature trees which block the sun.
What is the limiting factor for the population in this study?
amount of sunlight
amount of space
amount of seedlings
amount of both sunlight and space
Hurricanes can have a huge impact on the environments they affect.
Animals may be killed or have their habitats destroyed by intense
winds and rainfall. In 1989, Hurricane Hugo reduced the endangered
Puerto Rican Parrot’s population to half its size.
What is the limiting factor in this scenario?
amount of sunlight
amount of fish
thickness of soil
the weather (number of hurricanes)
