interactions grab bag humans and the environment populationssuccession and other topics 1 2 3 4 5 1...
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Interactions Grab bag
Humans and the
environment
Populations
Succession and other
topics
1
2
34
5
1
2
34
5
1
2
34
5
1
2
34
5
1
2
34
5
Category 1 for 1Question: Two hyenas fight
over a zebra carcass. This is an example of __ __.
Check Your Answer
Category 1 for 1Answer: intraspecific
competition.
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Daily Double for 4Question: What are the 3
forms of symbiosis? Give an example of each.
Check Your Answer
Daily Double for 4Answer: Mutualism = beneficial
bacteria in intestines
Parasitism = a tick on an animal
Commensalism = a hawk sitting on a tortoise’s back
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Category 1 for 3 Question: Name the 6 major
interactions we discussed, and give the signs for each. (+, -, 0)
Check Your Answer
Category 1 for 3Answer: parasitism +/-
predation +/-
competition -/-
commensalism +/0
mutualism +/+
amensalism -/0
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Category 1 for 4
Question: What is happening in this experiment?
Check Your Answer
Category 1 for 4
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Answer: competitive exclusion
Category 1 for 5a)What is
happening in this picture?
b) Which type of niche is shown?
Check Your Answer
Category 1 for 5 a) niche
partitioning b) realized niche
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Category 2 for 1Question: How could
global warming increase agricultural productivity?
Check Your Answer
Category 2 for 1Answer: warmer global
temperatures could mean longer growing seasons for crops
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Category 2 for 2 Question: Describe two
examples of secondary succession.
Check Your Answer
Category 2 for 2Answer: after a hurricane
destroys an ecosystem, after a forest fire, when a person neglects their lawn
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Daily Double for 6A coyote was dozing in the shade of an oak
tree, contented after eating a squirrel. Several burr seeds were stuck in his coat. A large branch had fallen from the tree and crushed several small oak seedlings growing underneath it. Robins picked caterpillars from the oak leaves.
Describe 6 different interactions in the paragraph.
Check Your Answer
Daily Double for 6Answer: (a) Predation: coyote and squirrel
(b) Commensalism: coyote and oak
(c) Commensalism: coyote and burr seeds
(d) Amensalism: oak and seedlings
(e) Intraspecific competition: oak and seedlings
(f) Mutualism: robin and oak
(g) Predation: robin and caterpillars
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Category 2 for 4
Check Your Answer
Give an example of behavioral parasitism.
Category 2 for 4
Answer: The cowbird parasitizing songbird nests by laying eggs in them. (brood parasitism)
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Category 2 for 5Question: Give 2 examples of
primary succession. What is the name for the first organisms to live in an ecosystem? Name 2 of these.
Check Your Answer
Category 2 for 5Answer: when a glacier
recedes, on newly cooled lava. Pioneer species, such as lichens or mosses, are the first to grow in an area.
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Category 3 for 1
Check Your Answer
Which are populations? (a) All the animals in a zoo (b) All the fish in a pond (c) All the mosquitoes around a lake (d) Both b and c (e) a, b, and c
Category 3 for 1Answer: (c) all of the
mosquitoes around a lake
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Category 3 for 2Question: Name the three types of population dispersal.
Check Your Answer
Category 3 for 2Answer: random, clumped,
uniform
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Daily Double for 6! A population of wolves
averages 25 births and 10 deaths a year. If 3 wolves are immigrants, and overall growth is 12 wolves, how many emigrate?
Check Your Answer
Category 3 for 6Answer: Growth = (births + immigrants) – (deaths +
emigrants)
12 = (25 + 3) – (10 + x)
12 = 28 - (10 + x)
10 + x = 28 -12
10 + x = 16
x = 6
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Category 3 for 4
Question: Give an example of a type I, II, and III organism. (Do not use squirrel, human, or oak)
Check Your Answer
Category 3 for 4Answer: I =
elephant
II = bird
III = frog
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Category 3 for 5
Q: In a 100 m2 field, there are 25 chipmunks. What is the population density?
Check Your Answer
Category 3 for 5
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25 chipmunks/100m2 =
0.25 chipmunks/m2
Category 4 for 1
Check Your Answer
Q: Name 3 greenhouse gases. (from class or the textbook)
Category 4 for 1Answer: carbon
dioxide, water vapor, methane
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Category 4 for 2Question: Name 2
chemicals that can undergo biomagnification.
Check Your Answer
Category 4 for 2Answer: DDT, mercury, PCBs
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Category 4 for 3Question: Name 3
introduced species from the text or class discussion. Also name the location where each species was introduced.
Check Your Answer
Category 4 for 3Answer: kudzu in the South, rabbits in
Australia, mice in China, Python in Everglades
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Category 4 for 4Question: What acids are
found in acid rain? (besides carbonic acid which is normally in rain)
Check Your Answer
Category 4 for 4Answer: Sulfuric acid forms from
sulfur dioxide released from burning of coal.
Nitric acid forms from nitrous oxide from burning of gasoline.
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Category 4 for 5Question: What is an indicator
species?
Name 3 of 4 indicator species that were described in the textbook or in class.
Check Your Answer
Category 4 for 5Answer: gender-bending fish,
amphibians such as frogs, bird known as Forster’s tern, beluga whale,
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Daily Double for 2Question: What are
two nonrenewable resources?
Check Your Answer
Daily Double for 2Answer: coal and oil.
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Category 5 for 2Question: Earthworms aerate the soil by
tunneling through it. They also enrich soil by adding their waste. They are efficient decomposers. This best describes the earthworm’s:
(a) Habitat(b) Niche(c) Footprint(d) Limiting factors
Check Your Answer
Category 5 for 2Answer: (b) niche
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Category 5 for 3Question: The horned lizard of North American deserts and the thorny devil of Australian deserts occupy a similar niche. These organisms would be known as __________
________. Check Your Answer
Category 5 for 3Answer: ecological equivalents
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Category 5 for 4Question: You watch a
television program that states that organisms must always struggle with one another for existence. Do you agree? Explain why or why not.
Check Your Answer
Category 5 for 4Answer: No. Mutualism and
commensalism are examples of interactions that aren’t a struggle between organisms.
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Category 5 for 5Question: A hypothetical strain of
bacteria doubles every two minutes. One single bacterium was put in a sealed bottle at 8:00 a.m., and the bottle was filled at exactly 10:00 a.m.
What time was the bottle half full?
Check Your Answer
Category 5 for 5Answer: 9:58 a.m.
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