Transcript 10/26 Exam BioJeopardy

Population I
Population II
Ecological
Succession
Biodiversity
Misc.
100
100
100
100
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500
Population I
Name one way a
population can grow.
More births than deaths;
immigration
Population I: 200
Provide two examples of a
limiting factor
Predation, disease, natural
disaster, deforestation,
etc.
Population I: 300
Which of the following
letters would most likely
represent exponential
growth? J or S
“J”
Population I: 400
What is meant by carrying
capacity?
The maximum number of
individuals that an
environment can support
Population I: 500
Explain exponential
growth.
Exponential growth refers
to growth of a population
at a constant rate; only
under ideal conditions
Population II: 100
Name and spell the term
used to describe the
movement of individuals
into an area.
Immigration
Population II: 200
There are 20 white-tailed
deer occupying a forest of
10 square miles. What is
the population density of
the deer?
2 deer per square mile
Population II: 300
Explain how a population
would achieve a negative
growth rate
More deaths than births
Population II: 400
List and describe the three
types of geographic
distribution
1. Random- no order
2. Clumped- grouped
3. Uniform- orderly; a
pattern; evenly dispersed
Population II: 500
Is disease density-dependent
or independent? Why?
Density-dependent; disease
will only become limiting
when the population is large
and dense
Succession: 100
Primary Succession
occurs when this abiotic
factor is missing.
SOIL
Succession: 200
Name two events that may
initiate the process of
secondary succession.
Natural Disaster;
deforestation
Succession: 300
What is significant of the
presence of a climax
community?
Climax communities are a
stable group of plants and
animals in an area;
function optimally until
disturbance
Succession: 400
Explain the process in which
a pioneer species, like lichen,
creates soil.
Lichen adheres to the surface of rock,
and begins creating cracks (via the
release of acid from photosynthesis);
rocks are broken down, creating soil;
death and decay of lichen add
nutrients to soil
Succession: 500
Explain how larger, complex plant
species come to existence in an
area undergoing ecological
succession.
As pioneer species die and decompose, the
soil is enriched, allowing for other plants
with the necessary adaptations to grow and
develop; they too die and decay further
enriching the soil with nutrients- new plants
with the necessary adaptations are able to
move into the area, grow and develop
Biodiversity: 100
The word used to describe
the genetic variability of
living organisms
Biodiversity
Biodiversity: 200
What is an endangered
species?
A group of organisms near
extinction
Biodiversity: 300
Name and describe one
effort to protect the
Earth’s biodiversity.
National Parks-preservation of habitat
and living organisms
Captive Breeding- breeding of
endangered species held in captivity;
held until population grows and
begins to stabilize; released into
natural environment
Biodiversity: 400
Category 4 – 40 Points
Name and describe one way humans
interfere with biodiversity
1. Hunting: Death of too many animals
limits those genetically viable
organisms which can reproduce
2. Deforestation: Loss of
habitat/resources may lead to death of
organisms; loss of genetic variability in
gene pool
Biodiversity: 500
Explain the significance of
the Earth’s biodiversity.
More biodiversity means
the possibility of more
medicine; loss of other
resources
Miscellaneous: 100
The name used to
describe those factors
that cause a decrease in
the size of a population.
Limiting Factors
Miscellaneous: 200
Logistic growth can only
occur following a period
of this type of growth.
Exponential
Miscellaneous: 300
Name two events that
would initiate primary
succession.
Volcanic eruption; Glacial
retreat (both exposing
bare rock)
Miscellaneous: 400
Describe what is meant by a
density-independent limiting
factor. Provide an example.
These factors are limiting to
the population regardless of
its size; weather cycles,
natural disasters, human
interference
Miscellaneous: 500
Would the introduction of a
parasite become limiting to a
small, highly scattered
population? Why or why not?
No…parasitism is a densitydependent LF; in order to
become limiting the population
would need to be large and
dense
Final Jeopardy
“The Lonliest Animals”
What was the significance of the
gate (within the pond) that
separated the male and female
rafetus turtles?