Taxonomy & Systematics

Question 1

Species are populations which either… or….

Answer 1

• Interbreed; fertile offspring

- Cannot interbreed ; w/ organisms outside their group (reproductive isolation)

Question 2

Barriers to Reproduction

Answer 2

1. Prezygotic; before mating

2. PostZygotic

Question 3

Prezygotic Barriers

Answer 3

• courtship rituals
• Physical Differences
• Physical/ biochemical gamete factors

Question 4

PostZygotic Barriers

Answer 4

Hybrids (no organisms to mate with)

Question 5

Species Concept of Limitations

Answer 5

• applied to plants & animals

- not applicable to bacteria/fungi/protozoa

Question 6

How we name a Species

Answer 6

Binomial Nomenclature

Question 7

Binomial Nomenclature

Answer 7

1. Genus Name (HOMO)

2. Specific Epithet (Sapiens)

Question 8

Domains (x3)

Answer 8

1. Bacteria
2. Archaea
3. Eukarya

Question 9

Kingdoms (x4)

old scheme

Answer 9

1. Animalia
2. Plantae
3. Protista
4. Fungi

Question 10

Taxonomy

Answer 10

Science of naming and classification

Question 11

Systematics

Answer 11

Classifies organism and determines evolutionary relationships

Question 12

Monophyletic Group

Answer 12

all individuals very closely related to one another

Question 13

Phylogeny

Answer 13

evolutionary history/ relationships

Question 14

Bacteria (detailed)

Answer 14

• ex. of monophyletic group
• One or more circular bands of DNA
• ASSEXUAL

Question 15

Archaea

Answer 15

Prokaryotes with many eukaryotic characteristics

Question 16

Extremophiles

Answer 16

Archaea adapted to extreme environments (deep seas)

Question 17

Primitive protozoa (fungi)

Answer 17

Excavata

Question 18

Marine Protozoa

Answer 18

SAR Group

Question 19

Plants/algae

Answer 19

Archeplastida

Question 20

Animals/ advanced protozoa

Answer 20

Unikonta