Ecology Unit Review
Quiz by Jaclyn Robbins
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- Q 1/33Score 0
What is this?
29trophic levels
phylogenetic tree
food web
food chain
- Q1
What is this?
trophic levels
phylogenetic tree
food web
food chain
30s - Q2
Which of the following is an example of a density-dependent factor that can cause a decrease in red-tailed hawk population size?
dust storm
monsoon flash flooding
increased predation
record-setting high temperatures
30s - Q3
Which of the following is a strategy that wood rats can use to avoid competition?
living under the same velvet mesquite tree
drinking water from the Salt River
hunting the same species of prickly pear cactus
resource partitioning of a Saguaro cactus
30s - Q4
Which of the following is a likely impact of a decrease in the wood rat population?
an increase in competition between Mantis and red harvester ants
an increase in competition between red-tailed hawk and Western diamondback rattlesnake
an increase in the red-tailed hawk population
a decrease in the Saguaro cacti population
30s - Q5
Carrying capacity refers to
the maximum population size a habitat can support in the long term
the minimum population size a habitat can support in the long term
the maximum population size a habitat can support in the short term
the minimum population size a habitat can support in the short term
30s - Q6
The number of microplastics found in the surface of the ocean is demonstrating which growth pattern?
logistic
negative exponential
positive exponential
overshoot
30s - Q7
When a population splits, becomes reproductively isolated, and accumulates many significant genetic difference, this is defined as
convergent evolution.
divergent evolution.
coevolution.
speciation.
30s - Q8
Which of the following is NOT a benefit of biodiversity?
greater ability for invasive species to flourish
produces more oxygen through the healthy plants
adds greater resiliency after a natural disaster
provides more food and resources
30s - Q9
What is a keystone species?
a species with very high genetic diversity
a species that eats many different types of food
a species with many strong interactions with other species in the community
a species expanding its range beyond its historical range
30s - Q10
The Northern elephant seals have reduced genetic variation probably because of a population bottleneck humans inflicted on them in the 1890s. Hunting reduced their population size to as few as 20 individuals at the end of the 19th century.
What type of evolutionary mechanism is this?
mutation
gene flow
genetic drift
natural selection
30s - Q11
How does the greenhouse gas effect, resulting from factories releasing carbon dioxide, change the carbon cycle?
removing carbon from the atmosphere
adding carbon to the atmosphere
adding carbon to living organisms
removing carbon from living organisms
30s - Q12
Which is the following is NOT evidence for evolution?
transitional fossils
measuring genetic change occurring
climate record
homologous traits, including biochemistry
30s - Q13
According to this population pyramid, India is experiencing what type of growth?
rapid growth
stable
slow growth
rapid decline
30s - Q14
Commensalism is what type of relationship?
Positive-neutral
Positive-positive
Negative-negative
Negative-neutral
30s - Q15
The Sonoran desert is a desert in Arizona. This image shows the organisms found in the Sonoran desert. The BEST description of the Sonoran desert is a(n)
community
ecosystem
population
30s
