Sunday, May 2, 2010

of Echinoderms and tomatoes

The zoology class spent the week exploring the world of echinoderms; and what a wonderful example of what can evolve out of basic characteristics, which in this case are 5 part radial symmetry, tube feet, and an internal skeleton.

The earthworms of the sea floor, sea cucumbers, have a few swimmers in their midst...

The students imagined large alien sand dollars (imagine a cousin of the urchin with short spines) being responsible for crop circles...

and then I was much pleased to find this new post on sea stars.

Looking at echinoderms proved no different than looking at mollusks, which include clams, snails, and squids, or mammals which include bats, dolphins, and lions.

Tis a cool world.

In horticulture we are prepared to take on orders for our tomato plants. On Friday an e-mail informed the entire school of the varieties for 2010, and my car is filled with the ingredients to mix soil for the pots (all are in deep plug tray for now). As the orders come in we will harden off the plants in the greenhouse and by mid-May tomato plants will radiate out from Pathway to many home gardens, like mammals radiating out to all their shapes from their point of origin.

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