Taxonomy

Question 1

Order of classifications

Answer 1

Domain - Kingdom - Phylum - Class - Order - Family - Genus - Species

Question 2

What are the three domains?

Answer 2

Archaea, Bacteria, Eukarya

Question 3

Archaea

Answer 3

• Prokaryotes, cell wall, cell membrane (glycerol-ether lipids)
• Unique metabolism/translation

Question 4

Eubacteria

Answer 4

• Single 2X stranded circular DNA, cell walls

- Cyanobacteria

Question 5

Protista

Answer 5

• Primitive eukaryote with no differentiated tissue
• E.g. Euglena
• Protozoa, Algae, Slime molds

Question 6

Fungi

Answer 6

• Chitin cell walls, eukaryote, heterotroph, saprophytic/parasitic
• Asexual sporulation or intricate sexual process

Question 7

Bryophytes

Answer 7

• No xylem, flagellated sperm
• Gametophyte is dominant stage
• Mosses, Liverworts

Question 8

Tracheophytes

Answer 8

• Xylem/phloem
• Radial symmetry along vertical axis
• Deep roots
• Sporophyte is dominant

Question 9

Non-seed Bearing

Answer 9

• Pterophytes (ferns)

- Lycophytes (club mosses)

Question 10

Angiosperms

Answer 10

• Anther of male stamen –> microspores

- Ovary of female postil –> megaspores

Question 11

Dicotyledons

Answer 11

-Net-veined leaves, vascular bundles, can be woody, two seed leaves, flower in multiples of 4 or 5

Question 12

Monocotyledons

Answer 12

• Parallel veins, scattered vascular bundles, single seed leaf
• No cambium therefore nonwoody
• Flower in multiples of 3
• Grasses

Question 13

Gymnosperms

Answer 13

• Naked-seeded plants
• Specialized cambium –> secondary growth of secondary xylem/phloem
• Conifers produce two cones (female/male)

Question 14

Porifera

Answer 14

-2 layers of cells, pores, low specialization

Question 15

Cnidara

Answer 15

• Digestive sac sealed at one end

- 2 germ layers

Question 16

Platyhelminthes

Answer 16

• Bilateral symmetry
• 3 germ layers
• No circulatory system
• Eyes, Anterior brain ganglion, longitudinal nerve cords

Question 17

Nematoda

Answer 17

• Long digestive tubes and anuses
• 3 germs layers
• No circulatory system
• Nerve cord/nerve ring

Question 18

Annelida

Answer 18

• Segmented worm
• Coelom
• Nervous, circulatory, excretory

Question 19

Mollusca

Answer 19

• Soft-bodied, exoskeletons

- Gills, chambered hearts, blood sinuses, ventral nerve cords

Question 20

Arthropoda

Answer 20

• Contain more species than any other phlyum
• Jointed appendages
• Chitinous exoskeletons
• Insects, Arachnids, Crustaceans

Question 21

Echinodermata

Answer 21

• Spiny, radially symmetrical, water-vascular system, regeneration
• Starfish/sea urchin

Question 22

Viruses

Answer 22

-Nonliving, DNA/RNA, bacteriphage, lytic/lysogenic