PLEASE DO NOW: 1) What does an angiosperm have that conifers, ferns, and mosses do not have?

 Do Now  Video from yesterday  Plant parts  Review Questions  Experimental Design

 Every Thursday, we will spend a portion of our time analyzing graphs and charts, (usually related to what we are doing that week, but not always)  This will be a significant portion of your classwork grade for the week

 For the most part (especially angiosperms), all plants have the same basic parts.  They are each adapted to perform certain necessary life functions for the plant.  They may look very different from one plant to another, but the basic structure is the same. They are superficially different because they have adapted to their unique environment

 The underground part of the plant  Function Anchor plants to the ground Take up water Take up nutrients Storage

 The light gathering organ in plants.  Function: House chloroplasts, the site of photosynthesis Can do other specialized functions in certain plants.

 The structural part of the plant between the roots and leaves. Absent in some plants.  Functions: Connect roots and leaves Provide height to move the leaves closer to sun

 Found in some plants (angiosperms), not all, involved in plant sexual reproduction.  Functions: House reproductive structures Attract pollinators Produce seeds

 1. When I say go, head to your lab tables  Seats 1-4: Table 1  Seats 5-9: Table 2  Seats 10-14: Table 3  Seats 15-19: Table 4  Seats 19-23: Table 5  Seats 24-27: Table 6

 2. Write your name on a tongue depressor  3. Take a pot and fill it most of the way to the top from the bag/box nearest you  4. I will walk around distributing seeds  5. Take your seed and push it just under the surface of the soil, make sure it is covered, but not deep  6. Water the pot, so all the soil is moist but not dripping  7. Place the pots (with your tongue depressor in them) in the plant growth cart  8. Return to your assigned desk

 Name three functions of the roots in plants.

 Name at least three functions of the roots in plants. Anchor the plant to the ground Take up water Take up nutrients Storage

 What is the purpose of flowers in plants? A. Sexual reproduction B. Photosynthesis C. Asexual Reproduction D. Storage

 What is the purpose of flowers in plants? A. Sexual reproduction B. Photosynthesis C. Asexual Reproduction D. Storage

 What major group of plants are the simplest multicellular plants? A. Ferns B. Angiosperms C. Mosses D. Conifers

 What major group of plants are the simplest multicellular plants? A. Ferns B. Angiosperms C. Mosses D. Conifers

 Immobile = don’t move  Upright = stand vertically  Photosynthesis = turn light into food  These characteristics have organelles that that reflect them at the cellular level, that animal cells don’t have.

 Plants need to store water because the cannot move to a water source.  Also don’t have to worry about the weight of water they store.  Just a big container for mostly water

 Made of cellulose  Hold cells in rigid position  Outside the cell membrane

 The site of photosynthesis  Found largely in the leaves  Can move throughout the leaf to get the best light

 What organelle is the site of photosynthesis? A. Mitochondria B. Cell Wall C. Large Central Vacuole D. Chloroplasts

 What organelle is the site of photosynthesis? A. Mitochondrion B. Cell Wall C. Large Central Vacuole D. Chloroplast

 What is the function of the large central vacuole? A. To hold the cells upright B. To produce energy C. To store material, mostly water D. To protect the nucleus

 What is the function of the large central vacuole? A. To hold the cells upright B. To produce energy C. To store material, mostly water D. To protect the nucleus

 Most simple eukaryotic photosynthesizers  Considered by some to fall under the plant category  Mostly single celled

 Simplest multicellular plants  No vasculature to transport water  As a result, they only grow in really wet areas  No flowers or seeds

 Cone bearing plants  Needles  No flowers

 Most common group of plants  Flowering plants

 1) What is the long term trend in the size of the polar bear populations?

1) What month were these scientists measuring sea ice in? Over what time period? 2) What is the overall trend in sea ice coverage?

 1) How does a decline in the number of seals affect the number of polar bears?

 1) Is the polar bear decline uniform throughout its range?  2) Where are polar bears better studied? Russia or the U. S. and Canada?

 Based on the graphs you have seen, what do you think the fate of polar bears will be in the future? Why do you think this is? (Cite specific examples from the graphs).