3-18-08 notes

3-18-08 notes - March 18, 2008 Questions from last lecture:...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
March 18, 2008 Questions from last lecture: 1) Which phylum do the Mycorrhizal fungi belong to? Clicker question Which of the following was not a challenge for survival of the first land plants? A) Sources of water B) Sperm transfer C) Desiccation D) Animal predation E) Absorbing enough light Chapter 29+30 Plant diversity II Bryophytes: Nonvascular plants (Bryophytes) Seedless vascular plants (Lycophytes, Pterophytes) Seed plants (Gymnosperms, Angiosperms) Life cycle of Polytrichum, a moss Start with spores (female) Germinates Produces female gametophytes Haploid At the top of the gametophytes are the reproductive structures—archegonia Fertilization occurs Now we are in the diploid phase
Background image of page 1

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

View Full DocumentRight Arrow Icon
A zygote develops Green part at the end is female Start with spores (male) Germinates Produces male gametophytes Haploid At the top of the gametophytes are the reproductive structures—antheridia Fertilization occurs Now we are in the diploid phase A zygote develops Sporophyte?—produces spores SPERM NEED WATER TO MOVE
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/26/2009 for the course THTR 1009 taught by Professor Lessley,me during the Spring '07 term at Colorado.

Page1 / 5

3-18-08 notes - March 18, 2008 Questions from last lecture:...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online