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Relationships Within Ecosystems NOTES
By Dana Hojnowski
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Last updated over 1 year ago
37 questions
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Question 1
1.
Habitat - is the _____ where an organism lives
Question 2
2.
A shark's habitat:
Question 3
3.
Niche -
Question 4
4.
Niche for a shark:
Question 5
5.
Niche:
1.
2.
3.
4.
Question 6
6.
Can 2 different species live in the same habitat? (like birds in a tree)
yes
no
Question 7
7.
But can 2 different species DO the same thing? (like birds eat the same worm)
yes
no
Question 8
8.
This is because every species has their own set of ____________ in a niche.
Question 9
9.
When 2 species are in the same niche, they need the same _______.
Question 10
10.
So they _______ (fight) with each other.
Question 11
11.
Whoever has the best ___________, will exist in that niche.
Question 12
12.
The other species either finds a new niche or .. uh.. goes extinct.
Competitive exclusion
- when forced to compete, one species _______ the other(s)
Question 13
13.
_______ species invades and competitively excludes native species
Question 14
14.
What is an example of an invasive species?
Question 15
15.
Which grassy reed is native to our Meadowlands?
spartina
phragmites
Question 16
16.
When species compete, they can:
Make the other ________ away
Question 17
17.
Make the other go _______
Question 18
18.
or _____ with the other
Question 19
19.
Ex - bats and dragonflies both eat mosquitoes in their same niche, but:
(select 2)
bats hunt at night
dragonflies hunt during the day
bats hunt during the day
dragonflies hunt at night
Question 20
20.
PREDATION - when predator eats/hunts the ________
Question 21
21.
If the # of prey (zebras) goes up, the # of predators (lions) goes ____
up
down
Question 22
22.
If the # of predators (lions) goes up, the # of prey (zebra) goes ____
up
down
Question 23
23.
If the # of prey (zebra) goes down, the # of predators (lions) goes ____
up
down
Question 24
24.
If the # of predators (lions) goes down, the # of prey (zebra) goes back ____
up
down
Question 25
25.
BOOM-BUST CYCLE:
Draggable item
arrow_right_alt
Corresponding Item
boom
arrow_right_alt
when population increases
bust
arrow_right_alt
when population decreases
Question 26
26.
What do you call a species that can REALLY affect the boom-bust cycle in its ecosystem?
a ______ species - a KEY organism that makes an ecosystem work,
ex. - beaver, prairie dogs, wolves
Question 27
27.
MIMICRY - Look, sound or act like a more _______ SPECIES
Question 28
28.
example of mimicry:
Question 29
29.
WARNING COLORATION - Has bright colors or patterns to ______ predators
Question 30
30.
example of WARNING COLORATION:
Question 31
31.
CAMOUFLAGE - looks or acts like its _________
Question 32
32.
example of CAMOUFLAGE:
Question 33
33.
REVIEW: Which is NOT part of an organism's
niche
?
its prey
its predators
where it lives
its coloration of fur
its affects on others
Question 34
34.
REVIEW: A snake eating a mouse and a frog eating a fly are examples of:
predation
commensalism
parasitism
mutualism
Question 35
35.
REVIEW: A caterpillar disguised as a bird poop on the ground is an example of which defensive adaptation?
mimicry
camouflage
warning coloration
Question 36
36.
REVIEW: What is the whole point of a
boom-bust cycle
in an ecosystem?
Ecosystem balance
Population decline
Increase in resources
Rapid growth
Question 37
37.
REVIEW: If the # of predators decrease, why do the # of prey increase?