Macroevolution Flashcards
How many chromosome pairs do Mendel’s peas have??
7
Name as many Intrinsic Isolating Mechanisms as you can?
1: Ecological
2: Temporal
3: Behavioral
4: Mechanical
5: Gametic
6: Hybrid Inviability/Infertility
What is a major pest in the apple industry??
Rhagoletis pomonella.
Who standardized the use of Latin naming in science??
18th century Swedish scientist Carolus Linnaeus.
Define Macroevolution??
Evolution on a large scale over long periods of time resulting in new species.
Define Speciation??
Evolutionary process by which new species arise.
Allopatric Speciation?
Two step process initiated by Vicariance followed by an Intrinsic Reproductive Isolating Mechanism.
Extrinsic Reproductive Isolating Mechanism??
Vicariant factors that prevent species from interbreeding.
Intrinsic Reproductive Isolating Mechanism??
Internal characteristics that prevent a species from interbreeding.
List the 6 Intrinsic Reproductive Isolating Mechanisms??
1: Ecological (same territory, different habitat)
2: temporal
3: behavioral
4: mechanical
5: Gametic
6: hybrid Inviability/ infertility
Sympatric Speciation??
Evolution of a new species without Vicariance.
Adaptive Radiation??
Process from which a homogenous group rapidly diversify into a multitude of homologous forms due to new environment or niche.
Polyploid Speciation??
Numerical change in whole set of chromosomes causing rapid sympatric events. Instantaneous speciation of plants.
Biological Species Concept ??
That species are groups which can successfully breed due to isolating mechanisms. (Allopatric Speciation)
Binomial Nomenclature??
Formed system of naming species using two parts:
1: genus
2: specific
