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Ecology #1 Flashcards | StudBud
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Ecology #1
Ecology #1
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Ecology Unit #1
Flashcards
20 cards
F
Practice quiz
P
Host live
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Questions
20
Answers
1
physically trapping and removing an invasive pest is an example of which management method?
none of these
biological
mechanical
chemical
2
Which is a density independent limiting factor?
predation
competition for food
forest fire
disease
3
about what percentage of food energy gets passed on to the next trophic level?
20
50
10
90
4
Which is an invasive species in our area?
rainbow trout
douglas fir
spotted owl
english ivy
5
Which is a downside of mechanical invasive species management methods?
there is no downside
it costs lots of time, money, and manpower
native species are poisoned
you may create a new invasive
6
What would be an equation for population growth where B=births, D=Deaths, E=Emmig., I-Immig.?
Growth =(B+I) - (D+E)
Growth= (B+I)+ (D+E)
Growth= (B+D)- (E+I)
7
Which is NOT a type of method of managing invasive species?
Chemical
Magical
Biological
Mechanical
8
What 2 things cause a population to grow
births and deaths
immigration and emmigration
births and immigration
births and emmigration
9
What type of growth is in this diagram
negative growth
equilibrium
logistic growth
exponential growth
10
The study of interactions and relationships between biotic and abiotic factors is called....
Biology
Evolution
Ecology
Genetics
11
Which is a way that an invasive species can be introduced?
intentionally to fight a crop pest
accidentally with imported produce/ timber
all of these
accidental release of pets or flowers
12
a spider builds a web in a tree, this is an example of.....
commensalism
abiotic factor
parasitism
mutualism
13
What type of growth curve does the picture represent?
logistic growth
exponential growth
negative growth
equilibrium
14
Adding a beetle to the environment that only eats invasive purple loosetrife plants....
is risky because it could cause an invasive beetle problem
is a biological management method
all of these
has had success in states like Minnesota
15
Which is NOT an example of an abiotic factor...
climate
plant life
water
soil
16
Which is NOT a pattern of population distribution?
uniform
clumped
random
logistic
17
Which is NOT a density dependent limiting factor
predation
starvation
disease
habitat destruction by humans
18
Which is NOT an example of a biotic factor?
animal community
decomposing bacteria
plant community
minerals
19
adding pesticides or herbicides to the environment is and example of what type of method?
biological
physical
chemical
none of these
20
Which is the correct order of organization in ecology from smallest to large levels...
organism, species, population, community, ecosystem, biome
organism, population, ecosystem, community, biome, biosphere
organism, community, population, species, biosphere, biome
community, species, population, biosphere, biome, ecosystem
