Exploring Creation with Botany

1. Exploring Creation with Botany Lesson One-B Review

2. 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 seeds produced?

3. What is a Vascular Plant? Vascular plants have tubes like veins that carry liquid inside the plant. Liquid flowing up the plant is a mixture of water and chemicals called xylem. Liquid flowing down through the plant is a mixture of sugar and other chemicals called phloem.

4. Take a look at your leaf… The larger, thicker vein in the middle is called the midrib. It carries water from the stem to the rest of the smaller veins in the leaf.

5. 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.

6. What about the seeds? Botanists also look at the way plants make seeds when classifying them. For instance, they would notice that a peanut produces its seeds in a pod. The pod is the outer shell around the seeds.

7. There are two different kinds of plants that make seeds. Angiosperms Gymnosperms One giant phyla called Anthophyta Four different phyla Seeds are uncovered Seed in a container Phylum Coniferophyta makes cones Makes flowers

8. Compare Four Different Phyla antho (flower) phyta (plant) Seeds in a container from a flower Anthophyta Vascular conifer (cone-bearer) phyta (plant) Seeds uncovered from a cone Coniferohyta Vascular No seeds but sporangia (spores in a container) ptero (wing) phyta (plant) Pterophyta Vascular No seeds but sporangia (spores in a container) bryo (moss) phyta(plant) Bryophyta Nonvascular