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Flashcards in Biodiversity Deck (26):
1

What is biodiversity?

Biodiversity not only measures species richness but also the amount of individuals within each species in an area, region, or habitat.

2

What the hierarchical classification system?

7 levels of taxonomic structure based on characteristics (morphology, embryology,biochemical methods)

3

What are the 7 taxons in the hierarchical classification system?

Kingdom
Phylum
Class
Order
Family
Genus
Species

4

What are the five kingdoms?

Anamalia
Plantae
Fungi
Protoctista
Prokaryotae

5

What is the definition for species?

A group of individuals that can successfully interbreed to produce a fertile offspring.

6

What is phylogenetic classification system?

The three domains system

7

What is the phylogenetic classification based on?

Evolutionary history and the theory that all species evolve from one common ancestor

8

What are the 3 domains?

Bacteria
Archaea
Eukarya

9

What are the 6 kingdoms in the 3 domains system?

Eubacteria
Archaebacteria
Anamalia
Plantae
Protoctista
Fungi

10

What are the kingdoms in the bacteria domain?

Eubacteria

11

What are the kingdoms in the archaea domain?

Archaeabacteria

12

What are the kingdoms in eukarya?

Animalistic, plantae, protoctista, fungi

13

What is the three domains based on?

Based on differences in ribosomal RNA structure

14

Animals :

Multicellular, heterotrophic, nervous system (can move)

15

Plants:

Multicellular, autotrophic, cellulose cell walk, sap filled vacuoles

16

Fungi:

Generally multicellular, saprobioant, chitin cell wall

17

Protoctista:

Eukaryotic organismsms, autotrophic and heterotrophic
Mostly unicellular

18

Prokaryotae

Unicellular, autotrophic, no membrane bound organelles

19

Homologous structures?

Same structures different functions
Example of adaptive radiation

20

Analogous structures

Different structures but same function
Due to convergent evaluation

21

What are extremophiles?

An organism that can survive in extreme conditions that most organisms wouldn’t survive in

22

Steps for natural selection:

1) overproduction of offspring without an increase in population (struggle to survive)
2) variations occur in offsprings
3)Due to competition and a struggle to survive offsprings with beneficial characteristics survive
4) survivors reproduce and pass on characteristics
5)the number of individuals increases over generations

23

What is DNA base sequencing?

The order of the nucleotides in the DNA

24

What happens if a population of a species is split up?

Mutation change the sequence of DNA nucleotides and are random so the longer the populations have been isolated the more differences there will be in the base sequences of the DNA

25

What is a mass extinction event?

An event that causes the majority of species to go extinct

26

What is extinction?

The Permanent loss of a species