Plant Evolution
The key terms in this Biology course include Plant Evolution.
Alternation of generations
Spores
Gametophyte
Gametes n
Zygote 2n
Sporophyte diploid
Answer 1:
n
Answer 2:
n
Answer 3:
n
Answer 4:
2n
Answer 5:
diploid
Explanation
Spores = n (haploid)
Gametophyte = n (haploid)
Gametes n (haploid)
Zygote = 2n (diploid)
Sporophyte = 2n (diploid)
Alternation of Generations
Gymnosperms (naked seed)- seed bearing vascular plants-match the terms:
You may need to look up some information online to help answer this question.
Cycadophyta
tropical and subtropical, (looks palm like) has male and female strobili (cone-like structures)
Gentophyta
contains genera-Ephedra (native to North America), Welwitschia (native to western Africa), and Gnetum
Ginkgophyta
contains a single species, distinctive leaves, native to a small part area in china- popular as ornamental
Coniferophyta
cone-bearing plants- confers (i.e. pine trees, redwoods, spruces, ponderosa pines) most have a small male cones and large female cones, largest taxon in the Gymnosperms
Other Incorrect Match Options:
- monocots
- eudicots
- dicots
Explanation
Cycadophyta = tropical and subtropical, (looks palm like) has male and female strobili (cone-like structures)
Gentophyta = contains genera-Ephedra (native to North America), Welwitschia (native to western Africa) and Gnetum
Ginkgophyta = contains a single species, distinctive leaves, native to a small part area in china- popular as ornamental
Coniferophyta = cone-bearing plants- confers (i.e. pine trees, redwoods, spruces, ponderosa pines) most have a small male cones and large female cones, largest taxon in the Gymnosperms
Advantages of life on land for plants (select all that apply):
carbon dioxide is more readily available
water acts as a filter, altering the spectral quality of light- decreasing efficiency
sunlight is abundant
initial colonization of land- there were no predators for plants to compete with
Explanation
- sunlight is abundant
- initial colonization of land- there were no predators for plants to compete with
- carbon dioxide is more readily available
Adaptations found in terrestrial plants (select all that apply):
waxy cuticle
apical meristem
gametangium that produces haploid cells
sporangium in which the spores are formed
alternation of generations
stomata
Explanation
All are Major adaptations found in terrestrial plants