Algae

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11 Terms

1
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Plants have 3 characteristics:

photosynthetic, multicellular, and eukaryotic

2
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Plants are….

Primary producers → most terrestrial ecosystems

3
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Obstacles of moving to land:

  1. drying out

  2. support for the body

  3. obtaining resources for growth

  4. gas exchange CO2 and O2

  5. fertilization of gametes


4
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Plants go through 2 phases

  1. Gametophyte (haploid n)

  2. Sporophyte (diploid 2n)


5
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Gametophyte produce…

Gametangia →sex cells are produced

6
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Sporophyte produce…

Sporangia → produces spores by meiosis

7
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Sporophyte…

multicellular diploid individual

8
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Sporangium…

Location of spore formation and meiosis

9
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Gametophyte…

multicellular haploid individual

10
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Antheridia…

Location of sperm production

11
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Archegonia…

Location of egg production