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BIO LAB: Invertabes
| Question | Answer |
|---|---|
| What are 4 characteristics that all organisms in the Kingdom Animalia have in common? | 1) Hetertrophs 2) Multicellular eukaryotes 3) Lack cell walls 4) Tissues 5) Bodies held together by collagen |
| The Protist that shares the most recent common ancestor with animals is ______________, they are morphologicallt similar to the ___________________ in Porifera. | 1) chanoflagella 2) choanocytes |
| When an organisms has 3 ture layers of tissue, they're called _________________, these 3 layers are called _____________, _____________, ______________> | - Triploblastic - Ectoderm - Endoderm - Mesoderm |
| Animals that have a body cavity surrounded by mesoderm is considered to have a true _____________. | - coelom |
| The body form of a Cnidarian where the mouth is facing down is ________________. | - Meudsa |
| Which Animal phylum has no tissue or someimes no symmetry? | - Poriferia |
| Cnidarian are __________ symmetrical. | - Radially |
| The cells that engulf food in Poriferia are called ______________. | - Choanocytes |
| The cells that capture food in Cnidaria are called ______________. | - Cnidocytes |
| The opening where water exists is called the ______________ in Porifera, and the __________/__________ in Cnidaria. Are they the same type of opening? | - osculum - mouth/anus - NO |
| What is the path of water through a sponge? | |
| In Poriferia, what are 2 functions of amoebocyte cells? | - they distribute food and make egg and sperm |
| How do Porifera reproduce? | - Sexual: producs gametes through meiosis - Asexual: budding mitosis can cause Broadcast spawing |
| Organisms tha only have ectoderm and endoderm are called ______________, the only animal phylum with this characteristic is ____________. | - Diploblastic - Cnidaria |
| What are spicules? What are 3 types? And what is their function? | - skeleton of sponge 1) Calcium Carbonate 2) Silica 3) Protein - function to deter predators |
| What does it mean to be a sessile filiter-feeder? What body plan do sessile organisms typically have? | - A non-mobile organisim that are able to engulf through filtering the water carrying nutrients - A porus body and polyp form |
| Are cnidarians filter-feeders? | - NO |
| What are the 2 body forms of Cnidarians? | - Polyp - Meudsa |
| Do all Cnidariasn have both body forms? | - NO |
| What is the advantage of being radially symmetrical? | - Having the ability to be able to see 360 around you for predators, danger, or threat . |
| What is the body form of a Hydra? | - Polyp body form |
| What is a Cnidoycte? | - They are explosive stinging cells found in cnidarians that contain nemacytist |
| What is a nematocyst? | - Specialized venemous, harpoon like organelle that used to captire prey located on cnidocytes |
| How do Cnidarains aquire and digest food? | - they capture food through Nematocyte by the cnidocyte with their tentacles |
| How do Cnidarians reproduce? | - Sexual; the production of gametes causing broadcast spawing - asexual: bud fragment |
| Are Cnidarians mobile or sessile? Explain. | - Both, depending on the body form because polyps tend to be sessile while medusa are free-swimming (mobile). |
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