WorksheetsEcology Unit 1B Test
Total questions: 55
Worksheet time: 14hrs 45mins
What is ecology?
the study of rocks
the study of relationships between organisms and their environments
the study of the ocean
the study of animals and plants
What is the definition of a population?
all individuals of one kind living in one area
one single organism
any living thing
many different organisms living in one area
Biotic means:
living organisms and the remains of living organisms
non-living
Abiotic means:
living organisms and the remains of living organisms
non-living
Spiders eat flies. When drawing the food web for this relationship, you should draw the arrow:
FROM the spider, TO the fly
FROM the fly, TO the spider
Select the three things plants need to do photosynthesis.
Water
Glucose
Carbon dioxide
Light energy
What energy molecule do plants make as a result of photosynthesis?
Water
Oxygen
Carbon dioxide
Glucose
What part of the plant does photosynthesis?
chloroplasts
stomata
roots
bark
What would be a good example of a primary consumer?
carnivore
detrivore
decomposer
herbivore
The monkey would be a
decomposer
producer
primary consumer
secondary consumer
A lion that eats a zebra that eats grass is a
primary consumer
secondary consumer
tertiary consumer
quaternary consumer
What type of relationship is this?
parasitism
mutualism
commensalism
competition
symbiotic relationship in which both organisms benefit
competition
mutualism
predation
commensalism
A large area that has a particular climate, and particular species of plants and animals that live there is a
(a)
Consumers can be further divided into specific categories.
Omnivore
Herbivore
Herbivore
Carnivore
Omnivore
Herbivore
Carnivore
Carnivore
Omnivore
grass 🡪 mouse 🡪 snake 🡪 hawk🡪 fox
Which is the producer.
(a)
grass 🡪 mouse 🡪 snake 🡪 hawk🡪 fox
Which is the secondary consumer.
(a)
Which is the decomposer, a frog, wolf or a vulture?
(a)
Why don't populations grow indefinitely?
limiting factors
only biotic factors
only abiotic factors
none of the above
parasites, disease, predators, are examples of what type of limiting factors?
density dependent
density independent
survivorship
type 1 curve
One of the factors that can change the size of population is....
Name of schools
Number of dezs
Jobs
Numbers of births
the number of people in a defined area such as a square kilometre
population density
birth rate
death rate
population
Why would an area be sparsely populated?
lack of natural resources
land is covered with ice
land cannot be developed
all of the above
Organisms that feed on dead or decaying mater are called
herbivores
carnivores
omnivores
detritivores
Two robins eating worms on the same lawn is an example of
mutualism
commensalism
competition
parasitism
One difference between parasitism and predation is that parasites
do very little harm to their hosts
keep their hosts alive for a period of time
attack the host only from the inside
are not very big
An oak tree provides a sparrow a place to build a nest. The nest neither benefits nor harms the tree. What is the name of this type of symbiosis?
mutualism
commensalism
predation
parasitism
Which of the following are all abiotic?
Temperature, Light, Rain, Gravity, Heat
Water, Fish, Insects, Lily Plants
Dogs, Meat, Cats, Catnip
Lion, Pride Rock, Warthog, Meerkat
Which of the following are all biotic?
Temperature, Light, Rain, Gravity, Heat
Water, Fish, Insects, Lily Plants
Dogs, Meat, Cats, Catnip
Lion, Pride Rock, Warthog, Meerkat
Which of the following is a mutually beneficial, symbiotic relationship?
Sea sponges and coral compete for food and marine resources. If the sea sponges have sole access to the resources, they will be successful – but the coral will die. A lack of coral negatively affects the reef, which means that sea sponges could die.
Head lice live on small amounts of blood on the scalp. The host human feels itchiness in their hair as the lice bite and move around.
A spider uses a tree to build its web. The tree is not impacted but the spider needs the tree for shelter and safety.
When a fruit bat eats the fruit from a fig tree, it eats the seeds as well. These seeds are dispersed through the bat’s droppings.
The relationship where two different organisms live closely together for long periods of time is called:
predation
competition
symbiosis
Define autotrophs:
(a)
In some environments, wolves prey on deer for their source of food. If all of the wolves were taken from the environment, what would most likely happen to the deer population?
A The deer population would increase and begin to compete for food.
B The deer population would become larger and healthier animals.
C The deer population would decrease, because there would be an increase in disease.
D The deer population would change color, because they would not have to hide from wolves.
Which biotic factor would be most effect in maintaining homeostasis in an ecosystem?
the absence of large trees
the presence of many ponds
the presence of many species
the absence of predators
Overfishing is causing the decline of fish populations, such as Eastern Atlantic bluefin tuna in the Mediterranean. Eastern Atlantic bluefin tuna are caught faster than they can reproduce. Which statement describes the most likely effect that overfishing will have on this ecosystem?
Overfishing makes the ecosystem more stable by increasing competition for limited resources.
Overfishing decreases the stability of the ecosystem by disrupting food chains.
Overfishing has no effect on ecosystem’s stability because it affects one species out of many.
Overfishing increases ecosystem stability by allowing prey populations to overproduce.
Which of these shows the levels of ecological organization from SMALLEST to LARGEST?
organism, population, community, ecosystem, biome, biosphere
biosphere, ecosystem, biome, community, organism, biosphere
population, ecosystem, community, organism, biosphere, biome
community, ecosystem, biome, biosphere, population, organism
Excessive amounts of rain caused a flood in the southwest United States that resulted in substantial amounts of deaths in the rabbit population? This situation is an example of a density _____________ limiting factor.
Density independent
Density dependent
Density - too high
Density - too low
Which diagram best illustrates the cycling of matter and energy among organisms?
sun → decomposers → plants → animals → larger animals
larger animals → small animals → insects → plants → sun
decomposers → insects→ plants → small animals → larger animals → sun
sun → plants → insects → small animals → larger animals → decomposers
The graph to the right shows the interaction of the wolf and moose populations on Isle Pekie. If the moose population continues to increase, the wolves' food supply will increase. What will most likely happen to the wolf population as a result?
It will decrease.
It will increase.
It will remain the same.
According to this graph of the population growth of fruit flies, what day did the population first reach its carrying capacity?
Day 4
Day 12
Day 20
Day 24
A variety of plant life that stores water contributes to the sustainability of this biome.
True
False
select the symbiotic ecological relationships
predation
mutualism
parasitism
commensalism
Which of the following graphs shows a population of organisms with a carrying capacity?
Define "limiting factor"
anything that constrains a population's size and slows or stops it from growing
when population increases slowly at first then grow at an accelerated rate
minimum number of individuals of a species that an environment can support
maximum number of individuals of a species that an environment can support
