Test 3 - Topic 13-14 Flashcards
_________ : group of interbreeding natural populations that are reproductively isolated from other natural populations
species
_________ - A specific evolutionary pattern where there is a rapid increase in the number of closely related species
Adaptive Radiation
Adaptive Radiation - A specific evolutionary pattern where there is a rapid _________ in the number of closely related _________
- increase
- species
_________ - An evolutionary pattern where very different organisms show similar characteristics
Convergent Evolution
Convergent Evolution - An evolutionary pattern where very different _________ show similar _________
- organisms
- characteristics
_________ - An evolutionary pattern where individual events cause many branches in the evolution of a group of organisms
Divergent Evolution
Divergent Evolution - An evolutionary pattern where _________ events cause many branches in the evolution of a group of _________
- individual
- organisms
_________ : is the process by which local units of a population become reproductively isolated from other units and thus experience changes in gene frequencies
Genetic divergence
Genetic divergence is the process by which local units of a _________ become reproductively isolated from other units and thus experience changes in _________ frequencies
- population
- gene
_________ - reinforce genetic divergence by stopping gene flow (cant move from flint to lansing - something is blocking them)
Isolating mechanisms
Isolating mechanisms - reinforce _________ divergence by _________ gene flow (cant move from flint to lansing - something is blocking them)
- genetic
- stopping
_________ Isolation - Isolation mechanisms that take place before the zygote is formed
Pre-zygotic
_________ Isolation - They have different times of reproduction
Temporal
_________ Isolation - Refers to the different patterns of courtship
Behavioral
_________ Isolation - Reproductive organs prevent successful breeding (chiwawa and great dane)
Mechanical
_________ Isolation - Egg and sperm can not fuse together
Gametic
_________ Isolation - A physical barrier prevents mating
Geographical
_________ Isolation - Takes place after the zygote is formed
Postzygotic
A _________ is produced -
- One hybrid is weak sickly, and dies shortly after birth
- One hybrid is strong and healthy but sterile
hybrid
A hybrid is produced -
- One hybrid is _________ sickly, and dies shortly after birth
- One hybrid is _________ and healthy but sterile
- weak
- strong
_________ Speciation - Takes place in the absence of gene flow
(the isolating mechanism is Geographical)
(Allopatric = Different homeland) (physical barrier)
Allopatric
Allopatric Speciation - Takes place in the absence of gene flow
(the isolating mechanism is _________ )
(Allopatric = Different _________ ) (physical barrier)
- Geographical
- homeland
_________ Speciation - New species arise, sometimes rapidly from a small proportion of individuals within the existing population (Sympatric = Same homeland)
Sympatric
Sympatric Speciation - New species arise, sometimes rapidly from a small proportion of _________ within the existing population (Sympatric = Same _________ )
- individuals
- homeland
_________ - Have more than two chromosomes per trait -
(Is considered isolation and instant speciation)
[This instant speciation can only happen in plants]
Polyploidy
Polyploidy - Have more than two chromosomes per trait -
(Is considered _________ and instant speciation)
[This instant speciation can only happen in _________ ]
- isolation
- plants
_________ Speciation - New species form from a small proportion of individuals along a common border between two populations
(Usually competing for food) - (Parapatric = Near another homeland)
-Gene flow may not be stopped
Parapatric
Parapatric Speciation - New species form from a small proportion of individuals along a common border between two _________
(Usually competing for food) - (Parapatric = _________ another homeland)
-Gene flow may not be stopped
- populations
- Near
-Patterns of Speciation-
_________ - (Branched Speciation)
Cladogenesis
-Patterns of Speciation-
Cladogenesis (Branched _________ )
Speciation
-Patterns of Speciation-
_________ - (Unbranched Speciation)
Anagenesis
-Patterns of Speciation-
Anagenesis (Unbranched _________ )
Speciation
-Rate of Speciation-
_________ - (Darwin) - Changes take place very slowly over generations of time
Gradualism
-Rate of Speciation-
_________ - (Gould) - There are periods of rapid speciation where many species evolve followed by time periods with little speciation
Punctuated Equilibrium
-Rate of Speciation-
Punctuated Equilibrium - (Gould) - There are periods of rapid _________ where many species evolve followed by _________ periods with little speciation
- speciation
- time
-Rate of Speciation-
_________ - When an entire species dies off
Extinction
-Rate of Speciation-
_________ Extinction - Rather inevitable loss of species as local conditions change over time
Background
-Rate of Speciation-
_________ Extinction - An abrupt disappearance of many species due to catastrophic global events
Mass
_________ - The study of relationships between organisms and their environment
Ecology
_________ - Anything that affects and organism during its lifetime
Environment
_________ - A complex of organisms interacting with one another and with their physical environment
Ecosystem
_________ are open systems - Through which energy flows and Materials are cycled
Ecosystems
_________ require - Energy and nutrient input and generate energy and nutrient output
Ecosystems
_________ cannot be recycled - Most of it is lost as _________ to the environment
- Energy
- heat
_________ on the earth function as systems running on energy from the _________ processed though various organisms
- Regions
- sun
_________ - The living organisms
Biotic
_________ - The physical environment
Abiotic
-Participants in the ecosystem-
_________ - Autotrophs that can use sunlight energy to make organic compound
Producers
-Participants in the ecosystem-
_________ - Heterotrophs that feed on the tissues of other organisms
Consumers
-Participants in the ecosystem-
_________ - Consume plants
Herbivores
-Participants in the ecosystem-
_________ - Consume animals
Carnivores
-Participants in the ecosystem-
_________ - Consume living host
Parasites
-Participants in the ecosystem-
_________ - Consume both plants and animals
Omnivores
-Participants in the ecosystem-
_________ - Heterotrophs that get energy from the remains or waste products of other organisms
Decomposers
_________ - (Feeding level)
Trophic Levels
_________ levels are a hierarchy of energy transfers, bluntly stated, “Who eats whom”
Trophic
Trophic levels are a hierarchy of energy transfers, bluntly stated, “_________”
Who eats whom
_________ trophic level - Grass
First
_________ trophic level - Primary consumer (herbivores)
Second
_________ trophic level - Secondary consumer (carnivores)
Third
_________ trophic level - Tertiary consumer - [Top Predator] (Consume everything below it)
Fourth
Traditionally every habitat had its top predator (usually only one)
1) Michigan - _________
2) African savanna - Lions
3) South-east Asia - _________
4) Northern Canada - Polar bear
- Wolves
- Tigers
_________ - Feed off all trophic levels
Decomposers
A sequence of who eats whom is called a _________
food chain
Cross-connecting food chains make up _________
food webs
_________ - Total rate of photosynthesis for an ecosystem during a specific time period
Gross primary productivity
_________ - Rate of energy storage in plant tissue in excess of what the plant uses for maintenance growth and reproduction
Net primary productivity
Net primary productivity - Rate of energy storage in plant _________ in excess of what the plant uses for maintenance growth and _________
- tissue
- reproduction
The net primary productivity is what is available for _________ consumption
heterotrophic
Energy flows into the _________
ecosystem
Energy flows from the _______ –> Plants –> Herbivores –> Carnivore –>
Sun
Energy leaves the _________ through heat losses generated by _________
- ecosystem
- metabolism
Trophic structure can be diagrammed as a _________ in which producers form a base for successive tiers of _________ above them
- pyramid
- consumers
Pyramids can be of two types
- _________ pyramid
- _________ pyramid
- Biomass
- Energy
Only about __% of the energy entering each trophic level becomes available to organisms at the next _________ level
- 10
- trophic
- 100% of the energy enters the _________
- 10% of the 100% is available for the _________ (90% is lost as heat)
- 1% of the original 100% is available for the Primary Carnivores (99% is lost as heat)
- 0.1% of the original 100% is available for the Top Predators
- Producers
- Herbivores
- 100% of the energy enters the Producers
- 10% of the 100% is available for the Herbivores (90% is lost as heat)
- 1% of the original 100% is available for the Primary _________ (99% is lost as heat)
- 0.1% of the original 100% is available for the _________ Predators
- Carnivores
- Top
Because of the energy loss that is noted as you move up the energy pyramid, “__________________ “, Paul Colinvaux.
Why Big Fierce Animals are Rare
_________ - Ecosystems named for their dominant vegetation and climate
Biomes
-Major biomes of the world-
_________ - Ice, Freezing, no vegetation
Polar ice cap
-Major biomes of the world-
_________ - Short growing season long winter, No trees, all waste high vegetation, very cold
Tundra
-Major biomes of the world-
_________ - Dominated by pine trees, cold
Boreal Forest (taiga)
-Major biomes of the world-
_________ - Broad leaf trees, Mild summer - mild winter
Temperate Forest
-Major biomes of the world-
_________ - Prairie, dominated by grasses, Very fertile lands (Bison/antelope eats the trees) (Trees burned out
Temperate Grass Lands
-Major biomes of the world-
_________ - Succulents (plants that store water) - Very Dry climate
Deserts
-Major biomes of the world-
_________ - Lush thick vegetation - Humid, Hot
Tropical Rain Forest
-Major biomes of the world-
_________ - Grasslands with a scattering of trees - Has wet and dry season
Tropical Savanna
-Major biomes of the world-
_________ - Thorny plants - Dry season and short wet season
Tropical Dry Forest
-Major biomes of the world-
_________ - Multiple Biomes on the slopes (with elevation)
Mountains
-Major biomes of the world-
_________ - Has a wet season and very long dry season. Prone to fires - (All around the Mediterranean sea, southern California)
Mediterranean Shrub and Woodland
-Major biomes of the world-
_________ - Dominated by conifers
Temperate Rain Forest
-Major biomes of the world-
Polar ice cap - Ice, _________ , no _________
- Freezing
- vegetation
-Major biomes of the world-
Tundra - Short _________ season, long winter, No _________ , all waste high vegetation, very cold
- growing
- trees
-Major biomes of the world-
Boreal Forest (taiga) - Dominated by _________ trees, _________
- pine
- cold
-Major biomes of the world-
Temperate Forest - Broad _________ trees, _________ summer - _________ winter
- leaf
- Mild
- Mild
-Major biomes of the world-
Temperate Grass Lands - Prairie, dominated by _________ , Very _________ lands (Bison/antelope eats the trees) (Trees burned out)
- grasses
- fertile
-Major biomes of the world-
Deserts - _________ (plants that store water) - Very _________ climate
- Succulents
- Dry
-Major biomes of the world-
Tropical Rain Forest - Lush thick _________ - Humid, _________
- vegetation
- Hot
-Major biomes of the world-
Tropical Savanna - Grasslands with a scattering of _________ - Has _________ and _________ season
- trees
- wet
- dry
-Major biomes of the world-
Tropical Dry Forest - Thorny _________ - Dry season and short _________ season
- plants
- wet
-Major biomes of the world-
Mountains - Multiple Biomes on the _________ (with elevation)
slopes
-Major biomes of the world-
Mediterranean Shrub and Woodland - Has a _________ season and very long dry season. Prone to _________ - (All around the Mediterranean sea, southern California)
- wet
- fires
-Major biomes of the world-
Temperate Rain Forest - Dominated by _________
conifers