Evolution | Vocab Flashcards Preview

Biology Lecture Exam 1 > Evolution | Vocab > Flashcards

Flashcards in Evolution | Vocab Deck (44)
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1

Evolution

Changes in the genetic composition of a popoulation during successive generations

"Descent with Modification"

2

Artistotle

Believed in the Scala Naturae + that non living things and living things were "fixed", and did not change over time

3

Scala Naturae

Ladder like classifcation of nature from humans (top) to animals. Also included inorganic matter

4

Georges Curvier

Believed in the Theory of Catastrophism & was the founder of Comparative Morphology/Paleontology

5

Theory of Catastraphism

The theory that Earth has been largely shaped by short lived, violent events. After each catastrophe, God created more creations

6

Jean Baptise Lamarck

Proposed the theories of Use and Disuse + Inhertiance of Acquired Traits

7

Charles Darwin

Observed that plants and animals adapt to their own enviroments

8

Natural Selection

A process of how organisms better adapted to their enviroment tend to survive and reproduce more offspring

9

Natural Variation

(Give an example)

Individuals within the same species has genetic variations

Ex: Physical Apperance, metabolism, behavior

10

Heritability (Genetic Inheritance)

Give an example:

Traits that are passed unto offspring

Ex: eye colors, hair colors, height

11

Differential Survival

Many offspring do not survive due to low resources

12

Mathus Principle

When every generation produces more offspring than what can survive

13

Differential Reproduction

All organisms can produce more offspring than the enviroment can support, and the offspring best suited for the enviroment survive longer

14

Alfred Russel Wallace

Independently described a mechanism for biological evolution that was almost the identical to Darwins

15

On the Origin of Species by Means of Natural Selection

Proposed that all life of Earth is related and evolved from a common ancestor

16

Fossil Evidence

Can trace the evolutionary ancestry of an organism + proves the extinction of a species

17

Biogeography

Deals with the geographic distribution of plants and animals

18

Homologous Structures

When organs or skeletons are similar enough to suggest their connection to a common ancestor

19

Microevolution

Small changes in a population over a small period of time

20

Macroevolution

Large changes within a species (across many populations) over a large period of time

21

Population

Group of individuals of the same species

22

Gene

Code for DNA that can code for a characteristic

23

Allele

Varieities of a gene that you get from both parents.

24

Genotype

Genetic makeup of an individual

25

Phenotype

Physical expression of an organism

26

Gene Pool

Total genetic diversity that can be found within a population for a species

27

Hardy - Weinberg Equilibrium

When neither gene or allele frequency changes in succeeding generation

28

Genetic Mutation

Permanant alteration in the DNA sequence that makes up a gene

29

Gene Flow

The transfer of gene variation from one population to another

30

Non Random Mating

When Individuals do not choose their mates randomly