Download presentation
Presentation is loading. Please wait.
1
Fungi Eukaryotic Heterotrophic
Multicellular – use hyphae to form a mycelium Functions as decomposers, symbionts, mycorrhizae, pathogens, food, and food production
2
Animals Radial Symmetry:
- These organisms resemble a pie where several cutting planes produce roughly identical pieces. - Exhibits no left or right sides. Have a top and a bottom (dorsal and ventral surface) only. Means there is only one plane in which symmetry exists. Bilateral Symmetry: Only one plane (sagittal plane) will divide an organism into roughly mirror image halves Two halves can be referred to as the right and left halves
3
Animals Gastrovascular Cavity: Central digestive compartment
Single opening functions as both a mouth and an anus Alimentary Cavity: Digestive tube with a seperat mouth and anus
4
Animals Hermaphrodite:
An organism that possesses both male and female sex organs Is a common part of the life-cycle, particularly in some asexual animals and some plants. Generally occurs in the invertebrates, although it occurs in a fair number of fish, and to a lesser degree in other vertebrates
5
INVERTEBRATES
6
INVERTEBRATES describes any animal without a spinal column
includes 97% of all animal species - Phyla you need to know: -Porifera Cnidaria -Platyhelminthes Nematoda -Mollusca Annelida -Arthropoda Echinodermata
7
PORIFERA - an animal phylum comprising the sponges
8
CNIDARIA
9
PLATYHELMINTHES Platyhelminthes:
(from the Greek platy, meaning "flat" and helminth, meaning worm) -Phylum of relatively simple soft-bodied invertebrate animals -Most flatworms are free-living forms (flukes and tapeworms, though, are parasitic, and a few cause massive damage to humans and other animals)
10
MOLLUSCA -Includes a wide variety of animals that are well-known for their decorative shells or as seafood -Range from minute snails and clams to larger organisms such as squid and octopus -Vast majority live in marine environments -Only the gastropods have representatives that live on land: the land snails and slugs
11
ANNELIDA Annelida: (from Latin anellus "little ring")
-Large phylum of animals comprising the segmented worms (includes the well-known earthworms and leeches) -Found in most wet environments, and include many terrestrial, freshwater, and especially marine species -Some are parasitic or mutualistic (range in length from under a millimeter to over 3 meters)
12
NEMATODA Nematodes or roundworms:
(Phylum Nematoda from Greek (nema): "thread" ode "like") -are one of the most common phyla of animals, with over 20,000 different described species (over 15,000 are parasitic)
13
ARTHROPODA Arthropoda: (from Greek, “joint", and, “foot")
-Largest phylum of animals (includes the insects, arachnids, crustaceans, and others) -Characterised by the possession of a segmented body with appendages on each segment -All arthropods are covered by a hard exoskeleton made of chitin, a polysaccharide, which provides physical protection and resistance to dessication. -More than 80% of described living animal species are arthropods -Range in size from microscopic plankton (~¼ mm) up to forms several meters long. The largest living arthropod is the Japanese spider crab, with a leg span up to 3½ m (12 ft)
14
ECHINODERMATA Echinodermata: (from the Greek for spiny skin)
-Are a phylum of marine animal found at all ocean depths -Are important both biologically and geologically: biologically because few other groupings are so abundant in the biotic desert of the deep sea, as well as the shallower oceans, and geologically as their ossified skeletons are major contributors to many limestone formations, and can provide valuable clues as to the geological environment.
15
CHORDATA Chordata: -Are a group of animals that includes the vertebrates, together with several closely related invertebrates -United by having, at some time in their life cycle, a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail -Three subphyla: Urochordata, Cephalochordata, and Vertebrata -Urochordate larvae have a notochord and a nerve cord but these are lost in adulthood. -Cephalochordates have a notochord and a nerve cord but no vertebrae.
Similar presentations
© 2024 SlidePlayer.com Inc.
All rights reserved.