stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Population and Ecology Test review Flashcards | StudBud
Explore
/
Population and Ecology Test review
Population and Ecology Test review
60 terms
·
StudBud Administration
·
498 plays
Populations, biodiversity, species interaction, biosphere
Flashcards
60 cards
F
Practice quiz
P
Host live
L
Questions
60
Answers
1
Organisms, such as plants, that make their own food are called
pigments.
autotrophs.
heterotrophs.
consumers.
2
A hawk and a fox both want to eat rabbits. What kind of relationship do the hawk and fox have?
mutualism
parasitism
commensalism
competition
3
A snake that eats a frog that has eaten an insect that fed on a plant is a
tertiary consumer.
secondary producer.
primary consumer.
primary producer.
4
What is an example of a direct economic value of biodiversity?
vaccines created from bacteria
release of oxygen by green plants
drinking water provided by watersheds
diseases caused by bacteria
5
One species being better at getting a limited resource compared to another can lead to
symbiosis
energy pyramid
intraspecific competition
competitive exclusion
6
The energy in most ecosystems ultimately comes from _______.
soil
nitrogen
water
the sun
7
The pattern in which a population is spaced within an area is called ____.
dispersion
specific variation
growth patterning
population density
8
A barnacle attaches to a whale. It doesn't harm or help it, but gets a home. What is this?
competition
mutualism
parasitism
commensalism
9
If niches overlap, there is likely to be ....
commensalism
predation
mutualism
competition
10
Which is an indirect economic value of a mangrove forest growing along a coast?
flood protection
fruit harvesting
tourist destination
lumber source
11
What is extinction?
biodiversity increases
genetic diversity increases
an ecosystem vanishes
a species disappears
12
In the lab results shown here, what was the IV?
yeast
light level
carbon dioxide
time
13
Which is an example of the aesthetic value of a healthy ecosystem?
fertile topsoil
a beautiful waterfall
excess oxygen
a wide variety of genes
14
If there are 42,000,000 kcal at producer, how many will there be at the level of the shark?
4,200 kcal
42,000,000 kcal
none of these
420,000 kcal
15
If the rabbit population goes down in an ecosystem, what is likely to happen to the snakes?
population converts to vegan diet
population unaffected
population increase
population decrease
16
Organisms that cannot make their own food
heterotrophs.
producers.
autotrophs
plants.
17
In one growing population, a country shows increased waterborne disease. What could slow this?
increased population
increased farmland
increased sewage treatment
increased fuel
18
What causes competition within a species?
Some organisms are bigger
Some organisms are faster
organisms within a species don't need the same things
organisms within a species do need the same things
19
Slower growth rates, higher incomes, and strong social support systems tend to happen in
neither developed nor developing countries
developing countries
both developed and developing countries
developed countries
20
What does the s-shaped line in this graph indicate?
Exponential growth has not stopped.
Carrying capacity cannot be reached.
Carrying capacity has been reached.
A population has steadily decreased.
21
A country has a growing population because people move there for jobs. The cause of growth is
low death rate
high fertility rate
immigration
emigration
22
The idea that forests should be preserved simply because of their beauty refers most to
direct economic value
medicinal value
scientific value
aesthetic value
23
What type of country do you think this graph represents?
neither developed nor developing
both developed and developing
developed country
developing country
24
Which of the following could happen if competitive exclusion is taking place?
One species is more successful in competing.
One species may be unable to live in that area.
Organisms in two species are competing for a resource.
all of these
25
What happens when a population nears carrying capacity?
resources become limited
resources naturally increase
competition is no longer a factor
exponential growth occurs
26
In which type of species interaction are no organisms harmed?
predation
parasitism
competition
mutualism
27
Groups of organisms of different species that live in a particular location
ecosystem
biosphere
community
population
28
Symbiotic relationship between a flower and the insect that feeds on its nectar is most likely
parasitism
commensalism
mutualism
predation
29
Organisms that obtain nutrients by breaking down wastes and dead organisms are called
decomposers.
omnivores.
herbivores.
producers.
30
A population is
all the organisms in a n area
Organisms of the same species, area, and time
all the living and nonliving things
all the humans that lived in an area
31
The average number of years that a person is likely to live is called that person's
life expectancy
mortality rate
demographic transition
survivorship
32
Which is supported by the 10% of energy that moves from one trophic level to the next?
waste heat
digestion
growth
movement
33
In one country, 75% of members are expected to live to the age of 50. This is that country's
fertility rate
survivorship
death rate
birth rate
34
What is a niche?
the type of soil in which an organism lives
the unique role of an organism in an ecosystem
An organism's location
the physical properties of an ecosystem
35
The number and abundance of species in a biological community is called
species diversity
biomass
genetic diversity
ecosystem diversity
36
The term used to describe the number of individuals moving into a population is ____.
growth patterning
logistic growth
emigration
immigration
37
The algae at the beginning of the food chain in Figure 36-1 are
consumers
producers
decomposers
heterotrophs
38
How might the expansion of housing developments affect coyote populations in an area?
populations will increase
populations will stay the same
populations don't matter
populations will decrease
39
Where in the world is there the most species diversity?
on mountains
near the equator
near the poles
evenly distributed over the earth
40
Which is a density-independent factor?
food
a hurricane
shelter
disease
41
In which type of species interaction do both organisms benefit?
commensalism
competition
parasitism
mutualism
42
Adaptations that you would be more likely find in prey species than a predator
agility
mimicry (imitating poisonous species)
fangs and claws
heat-sensing organs
43
Why is genetic diversity important?
It is aesthetically nice to see differences in organisms.
It decreases the chance that some will survive changes
It increases the chance that some will survive changes
It increases chances of extinction.
44
Which is an example of the direct economic value of biodiversity?
Plants provide food and medicine for humans.
Natural processes provide nutrients for all living things.
Plants provide oxygen to the atmosphere.
Natural processes regulate local climate
45
The organisms in the greatest numbers in Figure 36-1 are most likely the ___
zooplankton
small fish
algae
sharks
46
Which affects population growth?
all of these
reproductive potential
birth rate
death rate
47
Which of the following is an example of an abiotic factor in an environment?
moss
water
a mushroom
a toad
48
In the yeast lab show here, what is the conclusion?
low light is best for increase in yeast populations
high light is best for increase in yeast populations
light has no effect on yeast popuations
darkness is best for increase in yeast populations
49
What is population density?
average intelligence of people in an area
the size of the area where people live
number of organisms of a species in an area or space
average size of organisms in a population
50
An interaction in which two or more species of organisms rely on the same limited resource?
peaceful co-existence
interspecific competition
population isolation
intraspecific competition
51
What sets a carrying capacity?
resources that may be limiting
how much the organisms reproduce
how many organisms there are
how spread out the organisms are
52
What type of graph is this?
exponential growth
reproductive potential
age-structure diagram
mortality chart
53
A lamprey eel attaches to a shark and suck blood from it. The lamprey ell is a
parasite
niche
pathogen
host
54
A ____ is any environmental factor that depends on population numbers.
climate factor
density-dependent factor
density-independent factor
growth factor
55
How do beetles display genetic diversity?
different species in one population
by having identical colors
by having identical genes
with variations in color and spots
56
Which is the order of ecological levels from the smallest to the largest (most encompassing)?
Organism – population – community – biosphere – ecosystem
Organism – population – community – ecosystem – biosphere
Organism – community – population – ecosystem – biosphere
Ecosystem – biosphere – community – population – organism
57
All the interconnected feeding relationships in an ecosystem make up a food
web.
chain.
interaction.
network.
58
What is a limiting resource?
all of these
something that organisms might run out of that makes stress
Something that can cause organisms to die
something that organisms need to live
59
A bird kills and eats an insect. Based only this, which terms describe the bird?
producer, carnivore
herbivore, decomposer
carnivore, consumer
herbivore, consumer
60
What is this graph showing?
dispersion
reproductive potential
population density
exponential growth
