WorksheetsExam Six Review
Total questions: 55
Worksheet time: 55mins
A Trophic level represents a
Pyramid
Chemical Cycle
Feeding Level
Consumer
An animal that eats plants and meat is a(n)
Producer
Omnivore
Herbivore
Carnivore
Organisms that break down organic matter are...
autotrophs
in the plant kingdom
decomposers
producers
Herbivores and carnivores are _______, but plants and algae are__________.
animals; consumers
omnivores; producers
consumers; decomposers
consumers; producers
This is the main source of energy for life on Earth:
Sunlight
Carbon
Producers
Heat
These show the complex interactions within an ecosystem:
Food chain
Food web
Biomass
Trophic level
This is a group of ecosystems that have the same climate and similar dominant communities.
species
population
communities
biome
This is a collection of all the organisms that live together in a particular place as well as their non-living or physical environment
Species
Population
Communities
Ecosystem
These are groups of individuals that belong to the same species and live in the same area
Species
Population
Communities
Ecosystem
Why did the population stay at around 80 after becoming established?
There is a set amount of resources
They are competing for mates
There is an invasive species
They are overhunted
Competition for resources is a limiting factor because
there is only a limited amount of food and living space available in any ecosystem
predator-prey populations often increase and decrease in cycles
abiotic factors such as light, water, and temperature are present
cities, highways, campgrounds, and orchards provide alternate environments for animals and plants
What do the arrows represent?
Growth
Photosynthesis
Energy being transferred
Offspring
A population that has reached the largest number of individuals that the environment can support...
has no limiting factors
contains only top consumers
has reached its carrying capacity
has changed from a food chain to a food web
What type of survivorship curve do humans have?
Type I
Type II
Type III
none of the above
Frogs produce 20,000 eggs at a time (known as frogspawn). What type of survivorship curve do frogs most likely have?
Type I
Type II
Type III
none of the above
The number of individuals that a particular place can support indefinitely is called the
biotic potential
survivorship
cohort
carrying capacity
The mortality rate of organisms following a type III survivorship curve is
fairly constant throughout life
higher as they get older
higher when they are younger
unrelated to age
What animal competes with hawks for mice?
Snakes
Foxes
Rabbits
Both snakes and foxes
Which of the following is an autotroph?
hawks
shrews
grasshoppers
grass
Which of the following is a herbivore?
Hawks
Shrews
Grasshoppers
Grass
Which of the following would have the smallest biomass?
Hawks
Shrews
Grasshoppers
Grass
Which of the following is a tertiary consumer?
Snakes
Shrews
Grasshoppers
Grass
This biome contains mostly evergreen shrubs. It has rainy and dry seasons with a moderate temperature and was once home to the quagga.
Temperate forest
Coniferous forest
Chaparral
Grassland
This biome contains the most biomass and biodiversity
Temperate forest
Coniferous forest
Tropical rainforest
Tropical dry forest
This a coastal body of water with access to both the ocean and fresh water. It can include bays, inlets, and lagoons when the rivers meet the ocean.
Wetlands
Estuary
Swamp
Marine
There is no light in this biome
Marine
Swamp
Coral reef
Deep Sea
Which of the following two organisms are producers?
plants and phytoplankton
plants and consumers
consumers and phytoplankton
phytoplankton and shrimp
The process shown in the diagram is:
Waste elimination
Cellular respiration
A food chain
Photosynthesis
As populations grow, individuals tend to compete for...
density
stree
independence
resources
Primary succession is ecological succession that begins in a place that...
does not have soil
does not have rock
does not have lichens
already has soil
Secondary succession begins in a place that...
was once home to humans
has no soil
does not have lichens
already has soil
Which of the following is not a cause for biodiversity loss?
Climate change
Invasive species
Overexploitation
Sexual selection
Variety is...
the number of different types
the total biomass of one type
the extent and nature of geographic spread of different types
biodiversity
Genetic diversity is...
different habitats and niches
different kinds of organisms and relationships
different genes and genetic combinations
different types of biomes and climates
Species diversity is...
different habitats and niches
different kinds of organisms and relationships among species
different genes and genetic combinations
different types of biomes and climates
A mouse eats grain. A snake eats the mouse. An owl eats the snake. What type of consumer is the snake?
First level (primary)
Second level (secondary)
Third level (tertiary)
Herbivore
What is a relationship where both organisms benefit from the association?
Commensalism
Mutualism
Parasitism
Predation
If you killed off the snakes in the ecosystem, which organism would be most affected?
Lion
Mouse
Kite
Owl
If you killed all of the rabbits, which species would benefit the most?
Owl
Wild Cat
Jackal
Goat
Which is the secondary consumer?
Goat
Jackal
Rabbit
Lion
Which letter contains decomposers
A
B
C
D
Which letter represents herbivores?
A
B
C
D
Which letter represents the smallest biomass?
B
C
D
E
Which letter represents a secondary consumer?
A
B
C
D
Assume letter 'A' has 100,000Kcal of usable energy. How much energy is available at level D?
10,000 Kcal
1,000 Kcal
100 Kcal
10 Kcal
Which of the following organisms is the most diverse?
Protists
Flowering Plants
Insects
Mammals
In which of the following pairs would biodiversity be greater in the first area than the second?
tropical area, temperate area
arctic area, temperate area
tundra area, savanna
small lake, large lake
Which is the best measure of biodiversity?
temperature and precipitation in an area
amount of fragmentation in an area
number of organisms in an area
number of different species in an area
Which fish is an invasive species?
Yellow Perch
Rainbow Smelt
Neither
There is not enough information
When many food chains link in a region, it is known as a(n)...
food pyramid
food web
food cluster
energy pyramid
Because only 10% of energy is usable by organisms in a higher trophic level,
food chains are rarely longer than 4-5 links
there are fewer large predators
a lot of tissue is available to decomposers
all of these
Which of the two types of bacteria will die soon?
P. aurelia
P. caudatum
neither
both
Which of the two types of bacteria is better adapted for competition?
P. aurelia
P. caudatum
neither
both
What happens to the growth rate of P. aurelia around day 12?
its population increases
its population decreases
it has reached carrying capacity
it has become an invasive species
A herbivore is a
primary producer
secondary producer
primary consumer
secondary consumer
