BIO 3102 Study Guide - Devonian, Antheridium, Mesozoic
Document Summary
Agnatha: super class of fish that do not have jaws, movies through water or swims into substrate to get food, teeth but not for food around edge of mouth (suction cup) Alternations of generations: pattern of reproduction, plants so invertebrates, alternations between diploid and haploid, or sexual asexual. Antheridia: haploid organ which produces male gamete, gametophyte phase of lower plants such as ferns. Arthropoda: has exoskeleton, segmented body, spiders, insects (jointed appendages) Bony fish: still today, hover and stop. Cartilaginous fish: shark like, central axial system, swim tail propel fwd, carti instead of bones. Chondricthyes: another name for carti fish (above) Crustacean: member of arthropoda, crabs, lobster, exoskeleton present, two parted limbs. Devonian period start from end of silurian 416mya to beginning of carboniferous terrestrial life form in plants extensive forest form bcuz no herbavores feed on them fish and insects appear. External fertilization sperm swim through water pollination from insects.
