WorksheetsHonors Bio: Ecology Unit Test
Total questions: 16
Worksheet time: 48mins
Which of the following would qualify as an "ecosystem"?
a group of prairie dogs
a group of prairie dogs and a group of trees
a group of prairie dogs, a group of trees, and soil
a single prairie dog
In this food chain the falcon would be classified as a
primary producer
secondary producer
primary consumer
secondary consumer
tertiary consumer
If the grass starts out with 10,000 J of energy...how much of the original energy is available to the snake in this food chain?
1,000 J
100 J
10 J
1 J
0.1 J
Decomposers and detritivores are important to ecosystems because
they increase soil quality for plants
they prevent dead organic matter from accumulating
both of these are true
Which of the following is an example of an abiotic factor on a biotic factor?
death of trees causes soil erosion
a drought causes a herd of sheep to migrate to another area
a wolf population hunts a rabbit population
a fire results in better soil quality
A hummingbird receives a nectar food reward and the plant benefits by having its genetic material carried to another flower to increase genetic diversity through sexual reproduction. What type of relationship is this?
mutualism
commensalism
predator-prey
parasitoid
Which of the following is a density-independent limiting factor?
disease
predation
a hurricane
lack of food
This is an unlabeled predator-prey relationship graph. Which one represents the prey?
the line that gets up to ~80 individuals
the line that gets up to ~40 individuals
both are equally likely
When the density of a population decreases
competition for resources increases and limits survival and reproduction
parasites and disease spread more easily
soil quality impacts the plant population at the same percentage it would with a greater population
all of these are true
Which abioitc factors have the greatest role in determining the amount of life an ecosystem can support?
temperature and precipitation
soil pH and producers
predator and prey
these are all abioitc factors that would have an equal role
In this food web...which of these would be the LEAST impacted if mangoes went extinct?
rat
fruit fly
thrush
dragonfly
frog
In this foodweb interspecific competition occurs between
dolphins and otters for pollock
eel grass for bacteria and little schools of fish
dolphins and seals for herring
ocra for dolphins and seals
a symbiotic relationship is
a close relationship between members of different species
a close relationship between members of the same species
competition between different species for the same resources
all of these are true
The carrying capacity for this seal population is around
8500
7500
6500
5500
This type of growth is best described as
logistic
exponential
An invasive species would likely display _______ growth
logistic
exponential
