Plant Colonization

Question 1

Terrestrial adaptations

Answer 1

Dessication-cuticle, guard cells, no leaves
Reproduction- protected seeds
Gas exchange- stoma
Gravity-roots, stems
Material transport- xylem & phloem

Question 2

Land plant origins

Answer 2

Every plant comes from:
Cyanobacteria
Green algae
Charophytes

Question 3

Bryophytes

Answer 3

Ex. Mosses
Complete water reproduction
Not vascular
Haploid gametophyte is dominant generation, (1n)
Asexual spores

Question 4

Pteridophytes/ tracheophytes

Answer 4

Ex. Ferns
Vascular!
Xylem and phloem lead to: true roots, stems, leaves
Diploid somatic (2n) is dominant life cycle
Still use h2o for repro
Fully sexual spores

Question 5

Gymnosperm

Answer 5

Ex. Conifers (pine trees) 
Means, "naked seeds"
Separate male/ female structures (fully sexual seeds) 
No direct water requirements for repro
2n except for 1n gametes
Wind/ rain pollination

Question 6

Another name for tracheophytes

Answer 6

Pteridophytes

Question 7

Another name for angiosperms

Answer 7

Anthrophyta

Question 8

Angiosperms/anthrophyta

Answer 8

Ex. Flowering plants
First protected, self nurturing, fully sexual seeds
2n except for 1n gametes
M/F structure, well developed and specialized
Co-evolved with pollinators
No H2o connection for repro

Question 9

Plant behaviors

Answer 9

Tropism= response to (movement towards/away)
Terms for=light, heat, Gravity, h2o, touch
Controlled by hormones
Photo-periodism

Question 10

Photoperiodism is…?

Answer 10

Env. Stimuli plants use to detect time of year in order to grow, flower, periods of dormancy etc. (climate change?)

Question 11

Plant hardships

Answer 11

Dessication
Reproduction 
Gas exchange
Gravity
Material transport