University:
Winston-Salem Forsyth County Schools
Course:
AP Biology
Academic year:

2015
Views:

234

Pages:

24
Author:

Paul Howell

Animal Kingdom How do animal populations differ? Kingdom Animalia  Within the Animal Kingdom there are approximately 35 sub-divisions called “Phyla”; each phylum sub-division shares particular structural and functional properties which together separate it from other phyla.  There are 9 main phyla in the Animal kingdom: Kingdom Animalia  Porifera – These are the salt-water sponges; there are approximately 8,000 separate species existing today. Kingdom Animalia  Porifera – These are the salt-water sponges; there are approximately 8,000 separate species existing today.  Cnidaria- This group is composed of jellyfish, and other lower aquatic animals; approx 15,000 species exist today Kingdom Animalia  Porifera – These are the salt-water sponges; there are approximately 8,000 separate species existing today.  Cnidaria- This group is composed of jellyfish, and other lower aquatic animals; approx 15,000 species exist today  Platyhelminthes – These are the flatworms which inhabit both marine and freshwater habitats; over 15,000 species exist today. Kingdom Animalia  Porifera – These are the salt-water sponges; there are approximately 8,000 separate species existing today.  Cnidaria- This group is composed of jellyfish, and other lower aquatic animals; approx 15,000 species exist today  Platyhelminthes – These are the flatworms which inhabit both marine and freshwater habitats; over 15,000 species exist today.  Nematodes – This phylum consists mainly of about 80,000 known parasitic worms.  Mollusca – This major group consists of snails, clams, squid, and octopus; there are over 110,000 known species.  Mollusca – This major group consists of snails, clams, squid, and octopus; there are over 110,000 known species.  Annelida – About 15,000 individual segmented worms comprise this phylum; the common earthworm is an example.  Mollusca – This major group consists of snails, clams, squid, and octopus; there are over 110,000 known species.  Annelida – About 15,000 individual segmented worms comprise this phylum; the common earthworm is an example.  Arthropoda – This very large group consists of insects; it is estimated that there are over 1 million species of insects existing today.  Echinodermata – These are the marine starfish; about 6,000 species exist today.  Echinodermata – These are the marine starfish; about 6,000 species exist today.  Chordata – This is a group of animals which are classified on the basis of possessing 3 common embryological features – dorsal nerve cord, supportive structure called the notocord, and pharyngeal gill pouches. Within this phylum is a highly-advanced group called the `vertebrates' which include fish, amphibians, reptiles, birds, and mammals; it is this phylum to which the human organism belongs. Phylum Porifera - Sponges  Structure Phylum Porifera - Sponges  Structure –Bodies of sponges are supported by a network of spikes. Phylum Porifera - Sponges  Structure –Bodies of sponges are supported by a network of spikes. –Has pores Phylum Porifera - Sponges  Reproduction Phylum Porifera - Sponges  Reproduction – Asexually by budding Phylum Porifera - Sponges  Reproduction – Asexually by budding – Sexually Phylum Porifera - Sponges  Reproduction – Asexually by budding – Sexually  Sponges do not have separate sexes but a single sponge produces eggs at one time of the year and sperm at a different time. Phylum Porifera - Sponges  Getting Food and Oxygen from Water Phylum Porifera - Sponges  Getting Food and Oxygen from Water – Feed by straining food particles from water Phylum Porifera - Sponges  Getting Food and Oxygen from Water – Feed by straining food particles from water – Oxygen from the water moves into the sponges cells Phylum Porifera - Sponges  Getting Food and Oxygen from Water – Feed by straining food particles from water – Oxygen from the water moves into the sponges cells – Move reproductive cells