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Clusters of spore cases, also called sporangia. Appear as brown spots on the under sides of leaves. Found on sporophyte ferns. Singular- sorus

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Re: Pterydophyta

... Fronds have a petiole (leaf stalk) and blade (main part of leaf). Each leaf has smaller leaflets called pinnae. Instead of flowers, ferns have sori, which grow directly on leaves. Sori make spores, which travel by wind, water, or animal to new locations where new fern colonies can begin. Since ...

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by Anonymous
Sun Aug 04, 2013 12:52 pm
Forum: Botany Discussion
Topic: Pterydophyta
Replies: 30
Views: 26668

Plant physiology question

... the resulting structures after fertilization in the plants life cycle? Resulting sporophyte, Resulting gametophyte, Spores, Sporangium sac in the sori, Resulting antheridium sac, Resulting spore mother cell, Cells that make up rhizoids I'm assuming that there would be 16 chromosomes. However, ...

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by inglej
Tue Apr 03, 2012 5:41 am
Forum: General Discussion
Topic: Plant physiology question
Replies: 0
Views: 2091

egg yolk...

oh yes! sori! thank u! @ mr mistery i wouldnt be surprised if my dad was wrong. he hates science especially bio! thats y he wanted me to be an accountant!

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by jnkdna
Fri Jan 13, 2006 11:23 am
Forum: General Discussion
Topic: egg yolk...
Replies: 57
Views: 23727

how can bone transfer blood cell to bloodstream ?

how can bone transfer blood cell to bloodstream ? my eng are poor .... sori for that - -' pls helpT^T thx

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by liam
Fri Mar 25, 2005 9:01 am
Forum: Human Biology
Topic: how can bone transfer blood cell to bloodstream ?
Replies: 5
Views: 4651

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