Exploring Creation with Botany
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Transcript of Exploring Creation with Botany
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Exploring Creation with Botany
Lesson One-B Review
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How Do Scientist Classify Plants?
To choose which phylum a plant goes in,
botanist look for certain things.
1) Does the plant have tubes inside?2) How are the seedsproduced?
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What is a Vascular Plant?
Vascular plants have tubes like veins that carry liquid inside the plant.
Liquid flowing up the plant is a mixtureof water and chemicals called xylem.
Liquid flowing down through theplant is a mixture of sugar and other
chemicals called phloem.
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Take a look at your leaf…
The larger, thicker veinin the middle is
called the midrib.
It carries water fromthe stem to the restof the smaller veins
in the leaf.
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What is a Nonvascular Plant?
A nonvascular plant, like the moss on the tree in the
picture, does not have veins.
A plant without veins does not have stems, roots or
leaves.
Since it does not have veins, it get water by absorbing it.
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What about the seeds?
Botanists also look at the way plants make seeds when classifying them.
For instance, they wouldnotice that a peanut producesits seeds in a pod.
The pod is the outer shell around the seeds.
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There are two different kinds of plants that make
seeds.
Angiosperms Gymnosperms
Makes flowers
Seed in a container
One giant phyla called Anthophyta
Seeds are uncovered
Four different phyla
Phylum Coniferophytamakes cones
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Compare Four Different Phyla
Phylum Name MeaningVascular or Nonvascular
Type of Seeds
Anthophyta
Coniferohyta
Pterophyta
Bryophyta
antho (flower)phyta (plant)
conifer (cone-bearer)phyta (plant)
ptero (wing)phyta (plant)
bryo (moss)phyta(plant)
Vascular
Vascular
Vascular
Nonvascular
Seeds in a container from a flowerSeeds uncovered from a cone
No seeds but sporangia (sporesin a container)
No seeds but sporangia (sporesin a container)