Animals

1. Animal Kingdom
How do animal populations differ?

2. 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:

3. Kingdom Animalia
 Porifera – These are the salt-water
sponges; there are approximately 8,000
separate species existing today.

4. 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

5. 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.

6. 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.

7.  Mollusca – This major group consists of
snails, clams, squid, and octopus; there are
over 110,000 known species.

8.  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.

9.  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.

10.  Echinodermata – These are the marine
starfish; about 6,000 species exist today.

11.  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.

13. Phylum Porifera - Sponges
 Structure

14. Phylum Porifera - Sponges
 Structure
–Bodies of sponges are supported by
a network of spikes.

15. Phylum Porifera - Sponges
 Structure
–Bodies of sponges are supported by
a network of spikes.
–Has pores

16. Phylum Porifera - Sponges
 Reproduction

17. Phylum Porifera - Sponges
 Reproduction
–Asexually by budding

18. Phylum Porifera - Sponges
 Reproduction
–Asexually by budding
–Sexually

19. 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.

21. Phylum Porifera - Sponges
 Getting Food and Oxygen from Water

22. Phylum Porifera - Sponges
 Getting Food and Oxygen from Water
– Feed by straining food particles from water

23. 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

24. 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