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Marine Biology ch.8
Marine Biology
| Question | Answer |
|---|---|
| Each of the following statements concerning sponges is except one | Sponges reproduce only asexually |
| If sponges lacked collar cells it would not be able to | Feed |
| Jellyfish use their nematocysts to capture | prey |
| Organs known as combs plates are found on animals known as | ctenophores |
| Which of the following animals exhibits radial symmetry as an adult? | Jellyfish |
| Worms with segmented bodies are called | annelids |
| An example of a parasitic flatworm would be a | fluke |
| Most sedentary polychaetes are | Filter feeders |
| Nematodes play an important role in | recycling organic matter |
| Tiny invertebrates that live in the spaces between sediments particles are collectively called | meiofauna |
| Planula larva | The planktonic larval stage of cnidarian |
| Budding | A form of asexual reproduction in microbes and multicellur organisms in which unequal division of the adult produces two individuals |
| Medusa | The free floating form of cnidarian that resembles an umbrella or a bell |
| Casting | A pile of organic material and minerals defecated by deposit feeders |
| Swarming | a behavior exhibited by some errant polychaetes in which the males and females congregate at the surface of the water to reproduse |
| meiofauna | Tiny organism that adapted in the spaces between sediments particles. |
| Stylet | A hard, sharp point and the end of an organ. |
| Nematocyst | The stinging organelle found with in the stinging cell of cniderians. |
| Nematode | A round wormlike animal that belongs to the phylum Nematoda. |
| Hydroid | A colonial organism belonging to the cniderian class hydrozoan. |
| Sea anemones | A large, heavy complex plops that belong to the cniderian class anthozoa. |
| Echinuran | An animal that belongs to the class Echiura in the phylum Annelida. |
| Cydippid Larva | The planktonic larva of ctenophores. |
| cnida | the stinging organelles in the cnidocyte. |
| Cnidocil | A bristle like structure that extends from one end of a cnidocyte and functions as a trigger. |
| priapulid | A worm that benthic and belongs to the phylum priapulida. |
| Hemichordate | An animal in phylum Hemichcrdata and is also called a acorn worm. |
| Tapeworm | A parasitic flatworm belonging to the class cestoda. Tapeworms are found in the intestines of vertebrate animals. |
| Asconoid | Type of sponge whose body has only a single songocoel that does not contain invaginations. |
| Turbellarian Flatworms | A free-living (nonparasitic) type of flatworm. |
| Epitok | The pelagic reproductive individual formed by some errant polychaetes. |
| Colony | A group of individuals that are physically connected and adapted to share resources such as food. |
| Pogonophoran | An animal that belongd to the class pogonophora of the phylum Annelida. Also known as beard worms. |
| Photoreceptor | A sensory organ capable of responding to light. |
| Photoperiod | The amount of light and darkness in a 24 hour period. |
| If sponges lacked collar cells it would not be able to | Feed |
| Jellyfish use their nematocysts to capture | prey |
| Organs known as comb plates are found on animals known as | ctenophores |
| An animal that exhibits radial symmetry | Jellyfish |
| Worms with segmented bodies | Annelids |
| A parasitic flatworm are | Fluke |
| Most sedentary polchaetes are | Filter Feeders |
| Nematodes play an important role in recycling | Organic Matter |
| Tiny invertebrates that live in the spaces between sediment particles are collectively called | meiofauna |
| What affects a sponges body structure? | Its size by its ability to circulate water through its body. |
| What are a boring sponges role in the environment? | They make their own habitat by boring into coral or dead shells. |
| What are advantages in a bilateral symmetry? | More in active lifestyles by giving concentration for sense organs and they also have a more streamlined body. |
| What are the ecological contribution of burrowing organisms? | They form a habitat for thousands of organisms. |
| What is the ecological role of meiofauna? | Thay adapt to small spaces in sediment particles and use cilia to crawl or glide and they leave a track of mucus. |
| How do sponges feed and reproduce? | Sponges feed by filter feed when they take food from the water and reproduce sexually and asexually. |
| How are cniderian stinging cells activated? | Activated when the capsule in the cellos open by the nematocyst when it is discharged. |
| What is the difference between selective deposit feeders and nonselecive deposit feeders? | Nonselective deposit feeders injest both organic mineral particles and digest organic mineral and selective deposit feeders separate organic material from minerals and inject only organically minerals. |
| How does radial symmetry have more advantages of sessile organism? | Radial symmetry allows them to meet and respond to their environment equally well from all sides. |
| What is the difference between hydrozoan and scyphozoan? | Hydrozoans when medusa mature they are released into the water to grow while scyphozoans release immature medusa buds to mature. |
Created by:
baileythegr8
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