Chap 29 plant diversity-1-st-09

Chap 29 plant diversity-1-st-09 - Plant diversity-1 Ozone...

Info icon This preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Plant diversity-1 Ozone protected from UV rays Developed underwater Bryophytes- dependent on water Ferns- not dependent, but prefers humidity 2 resources on land: Subterranean [soil]- developed roots Air- developed shoot system All plants are monophyletic, came from algae (no direct fossil record)
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Adaptations for life on land Cuticle - non cellular waxy layer secreted by the outermost layer of leaf [epidermis], prevents water loss, protects against microbial attack Gametangia - structures that enclose plant gametes, prevents decay/drying and microbial attack [bacterial/fungal infection] Protected Embryo- prevents drying & microbial attack Pigments & Secondary Compounds [metabolites, prevent microbial attack and herbivory]- for protection against UV damage [flavonoids]
Image of page 2
Four major periods of plant evolution Seeds increase adaptation by protecting embryo Flowers attract pollinators, they can spread Domination of sporophyte in ferns, angiosperms, gymnosperms
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Similarities w/ Land Plants 1)Starch
Image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern