Pictures For July 20

 Modified Stem of a Plant: This vine is a modified Stem of a plant, because I had to wrap it around the fence first, before it gripped it and wound around the fence by itself.

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 Hydrophobic: Oil is hydrophobic. It will never mix with water. The dark spots are food coloring to show the tension between the oil and water.

 Homeostasis: People eat food to maintain homeostasis, to keep their body heat up, and the fuel their bodies. Bagels are food.

 Autotroph:  All plants are autotrophic, as they manufacture their own food.

Exoskeleton: This cute baby crawfish does not have and bones in its body, so it has an exoskeleton.