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Cnidarian
An aquatic invertebrate animal of the phylum Cnidaria
| Question | Answer |
|---|---|
| Cnidarians display what kind of symmetry? | Radial symmetry |
| The medusa form of cnidarian is____its mouth is located on the ___of the organism. | Motile Bottom |
| Why is H2O movement in sponges so important? | 1)feeding 3)excretion 5)reproduction 2)respiration 4)circulation |
| what type of animal has a back bone? | Vertebrate |
| What is a blastula? | Hollow ball of cells formed during embryonic development. |
| Sea anemones & corals are members of the class___.They are only found in the___stage.Most reproduce sexualy by___? | Anthozoa Polyp External fertilization |
| What domain contains plants,fungi,protists,& animals? | Eukarya |
| What is a heterotroph? | Organism that gains nutrients & energy from feeding on organic compounds from other organisms. |
| Where is the mesoglea located? | Between the epidermis & the gastrodermis. |
| what is sexual reproduction? | fusion of gametes such as egg/sperm. |
| Sponges reproduce___ in a process called___fertilization. | Sexualy Internal |
| A sponge gets oxygen to its cells by the process of___. | Diffusion |
| This type of animal does not have a back bone. | Invertebrate |
| Cnidarians can respond to stimuli by using a ___ ___. | Nerve net. |
| What is bilateral symmetry? | Only one plane can divide body in 2 equal halves. |
| Animal cells are what? | Eukaryotic |
| Polyps can reproduce asexualy by a process called what? | Budding |
| What is a sponges response system? | They don't have one |
| What does sessile mean? | They live their entire life attached to one spot. |
| How do sponges feed? | Filter feed: sift microscopic food particles from H2O. |
| What are 3 classes of Cnidarians? | Scyphozoa Hydrozoa Anthozoa |
| Do members of the phylum porifera have body symmetry? | No |
| A polyp is___& cant move. Its mouth is located on___of the organism. | Sessile The Top |
| The gastroderm is the inner lining of the___ ___where digestion takes place. | Gastrovascular cavity |
| A genus is composed of a number of related what? | Species |
| What are the 6 kingdoms? | 1)Archaebacteria 3)Protista 5)Plantae 2)Eubacteria 4)Fungi 6)Animalia |
| What is an Osculum? | opening at the top of a sponge where H2O exist. |
| What is radial symmetry? | Organism has body parts repeated around the center; can bisect organism anywhere and get two equal halves. |
| What is taxonomy? | Naming & Classifying organisms. |
| Were does digestion take place in Cnidarians? | Gastrovascular cavity |
| What is an animal that has distinct left & right sides? | Bilateral Symmetery |
| Jellyfish move by means of what? | Jet Propulsion |
| Hydras are members of the class___. Their primary life form is the___. They can reproduce either___or___. | Hydrozoa Polyp Sexually or Asexually |
| How do anemones move? | Hydrostatic Skeleton |
| Intracellular digestion takes place___the cell. | Inside |
| Choanocytes function in sponges to ___... | Use flagella to move a current of H2O through the sponge |
| Jellyfish are members of the class___. Their primary life form is the____. They reproduce____. | Scyphozoa Medusa Sexually |
| What cell layer gives rise to muscles, circulatory, reproductive & excretory systems. | mesoderm |
| Sponges digest food by intracellular digestion in cells called_____. | Archaeocytes |
| How do cnidarians feed? | Sting prey with cnidocytes & nematocysts & then bring them into their mouth. |
| In a cnidarian, cells that sense gravity are_____. | Statocysts. |
| What 7 ways do animals survive? | 1)Feeding 3)Circulation 5)Response 7)Reproduction 2)Respiration 4)Excretion 6)Movement |
| What is a dichotomous key? | Set of paired statements used to classify organisms. |
| Inner layer; forms linings of digestive & respiratory system. | Endoderm |
| What is a cnidocyte? | Stinging cells located along tentacles of cnidarians. |
| Cnidarians get their name from what? | Cnidocytes |
| Soft sponges have an extracellular matrix of____to make them soft. | Spongin |
| Many sponges protect themselves from predators by producing____. | Toxins |
| Unlike plant cells, animal cells do not have____. | Cell walls |
| What are the 3 domains? | 1)bacteria 2)archae 3)eukarya |
| How are domains classified? | Cell structure |
| A_______is a poison-filled stinging structure that contains a tightly coiled dart. | Nematocyst |
| Cnidarians eliminate wastes by the process of______. | Diffusion |
| Some sponges play an important role in the primary productivity of coral reefs by: | Having a symbiotic relationship with photosynthetic organisms. |
Created by:
Scottee S.
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