Untitled Flashcards Set

Body plan -> physical structure features that animals have • Symmetry: Cephalization (when you don’t have a certain body pert, eg jelly fish_ no brain_)-No symmetry (Asymmetry) -Radial symmetry (equal halves and identical copies in different ways) -Bilateral symmetry ( Bi - means 2 Lateral - long wards: means it is cut long wards in 2 parts) Advantages of bilateral symmetry: - more mobility, ability to move forward and backward, side to side and to stop or go quickly, easily and efficiently Tissue / Germ layers -> • Diploblastic (Doesn’t have a mesoderm) • Triploblastic (Only has a mesoderm) Layers: 1) Ectoderm: Forms the exoskeleton (E for exit it’s on the outer end) 2) Mesoderm: develops into organs (M for middle) 3) Endoderm: Forms the inner lining of organs (E for enter) By : Hanifa Abraham Coelom (Body Cavity - not empty) -> • acoelomate (NO body cavity) dipoblastic • coelomate (HAS a body cavity) triplobastic Number of gut openings -> • 1 gut opening (Blind gut) - In takes and outtakes happen from the same opening • 2 gut openings (Through gut) - one place intakes and the other with release from a different opening 20 February 2025 Animal Phyla Notes taken in class 📝 Phyla is the different groupings for classification, there are 7 • Kingdom • Phylum • Class • Order • Family • Genus • Species Jellyfish, bluebottle Live in aquatic environment No cephalisation Radially systemic Diplobastic (Cos it doesn’t have a mesoderm, which is where organs stay) Internal parasite Triloblastic IS cephalisation Acoelomate Long structures Blind gut Earthworms There bodies are in compartments Aquatic and 2 halves when cut (bilaterally sysemtrical) Bilaterally symmetrical Coalomate Exoskeleton Triploblastic ALL vertebrates Very complex Coelomate Bilaterllay symmetrical 2 openings to the gut Triloblastic By : Hanifa Abraham Phyla genetic tree (NEED TO KNOw the characteristics, types from each section) Sponges (living organisms) They have no head, eyes (called cephalllisation) They Asymmetrical No opening to gut ↑ zBy : Hanifa Abraham ROLE of interbrates play in ecosystems and agriculture: 1) Pollination (Pollinators) • example: bees 2) Decomposition (decompose the dead organic matter -> into simpler matter for food) • example: Beetles 3) Soil aeration ( Creating sir pockets/ tunnels in the soil) • example: Earthworms - burrow through the soil while eats what it need and poops what it doesn’t