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Transcript
Reproductive System Function: pass on genes Types of Reproduction: *Asexual ~offspring are genetically identical to their parent ~offspring produced rapidly ~individuals don’t have to find a mate ~species can’t change quickly with a changing environment ~types include budding, fragmentation, gemmules, pedal laceration ~Porifera, Cnidaria, Platyhelminthes *Sexual ~offspring are not genetically identical to their parents ~species can change quickly with a changing environment ~individuals need to find a mate ~a lot of energy is put into courtship rituals ~hermaphroditic – individual has both male and female reproductive parts (Porifera, Platyhelminthes, Annelida) ~Porifera, Cnidaria, Platyhelminthes, Nematoda, Annelida, Mollusca, Arthropoda, Echinodermata, Chordata Types of Fertilzation: *external – out of body ~Porifera, Cnidaria, Platyhelminthes, Annelida, Mollusca (except octopus), Echinodermata, Oseichthyes, Amphibia *internal – in body ~Nematoda, Mollusca (octopus), Arthropoda, Chondricththyes, Reptilia, Aves, Mammalia Types of Development: *external – out of body ~Porifera, Cnidaria, Platyhelminthes, Nematoda, Annelida, Mollusca, Arthropoda (not scorpions), Echinodermata, Chondrichthyes (most), Osteichthyes, Amphibia, Reptilia, Aves *internal – in body ~Mammalia Interactions with Other Body Systems: *circulatory system brings blood/nutrients to developing fetus *controlled highly by endocrine system