20: Fungi are a kingdom of eukaryotic organisms that have cell walls made of chitin. Here is an example of a fungus growing off a dead tree. I met a mushroom at the party last night, he seemed like a pretty fun-guy.
21: Gastropods are a class of organisms that include snails, slugs, and limpets on land and in water. Pictured is the conch shell of a young Gastropods.
22: Genetic variation is variation in genetic material which typically results in phenotypic variation. These mallard ducks(ignore Canadian geese) represent genetic variation: some are women and some are men, resulting from genetic variation.
23: Gnathostomata are vertebrates that have jaws. This great egret I saw at the American river is an example of a Gnathostomata, because birds have jaws.
24: Gymnosperms are a group of seed producing plants that include conifers. Conifer pines produce cones such as this pictured one.
25: Gymnosperm leaves can be incredibly varied. Local conifers such as redwoods have leaves that are needle-like, as pictured.
26. Lichens are organisms that consist of two cell types in a symbiotic relationship: a fungus and an autotroph, such as a green alga. The green stuff on the conifer is a lichen.
31: Mycorrhizal fungi have symbiotic relationships with the roots of vascular plants. This mushroom uses the roots of the nearby tree for sustenance and vice versa. (my very shortly used authentication device is used in the picture- I lost it soon after:( )
35. Protostomes develop their mouths before their anuses and they undergo spiral cleavage- each of their embryo cells has a specific developmental fate, you cannot build a whole organism from any random early fetus cell. This scary spider, an arthropod, is example of a Protostome.
37. Radial symmetry is the existence of circular symmetry around the center of an organism. This flower head is an example of radial symmetry.
Rest of big idea 1. 9 other big idea 1 photos posted seperately.
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