Annelids

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Annelids. Earthworms. Anatomy Vocabulary. Anatomy – body parts Body Systems – Digestive System, Nervous System, Circulatory System, Excretory System, Muscular System Crop – stores food before blender Gizzard – like a small blender Clitellum – reproductive organ - PowerPoint PPT Presentation

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  • AnnelidsEarthworms

  • Anatomy VocabularyAnatomy body partsBody Systems Digestive System, Nervous System, Circulatory System, Excretory System, Muscular SystemCrop stores food before blenderGizzard like a small blenderClitellum reproductive organRespiration bringing gasses in and out of the body or cellular respiration

  • Annelids are SegmentedAnnelids are made of many small segments each with a similar anatomy.Segments allow for back-up incase of damage to another segment.

  • STERNGRRWhat do animals synthesize?

    Proteins

  • STERNGRRWhat do worms need to transport around their bodies?How do worms transport things around their bodies?

    Oxygen, CO2, nutrients

  • Closed Circulatory SystemWorms have two main vessels.One on the top and one on the bottom.They also have a connecting vessel in each segment.Several connecting veins near the head have pumping capabilities.

  • STERNGRRWhat do worms need to excrete from their bodies?

    NitrogenWaterSaltsSolid wasteCO2

  • Excretory SystemWorms have a tiny little mini kidney in each segment. Each one passes wastes directly to the outside through the skin.

  • STERNGRRWhat kind of respiration do worms do?Aerobic Cellular Respiration

  • Respiratory SystemWorms have no respiratory system.They breath through their moist skin by diffusion. It has to be moist.

    Is this an advantage or a disadvantage?

  • STERNGRRWorms are heterotrophs (consumers).Where do worms get their nutrients?Eat soilWhat is name for organisms that use the last bit of energy left in dead material and return the nutrients to the soil?Decomposers, mix soil, air into soilhttp://www.wormvideoclips.com/category/weird-worm-videos/

  • Digestive SystemWorms have a central tube that runs the length of the body.They do internal digestion.They have a mouth, throat, and a crop.Then the crop feeds food to the gizzard which grinds it and passes it to the intestine.The intestine absorbs and passes food to the vessels in each segment.The digestive track dumps out solid waste from the anus.

  • STERNGRRWhat type of cell division copies cells and allows organisms to grow?MitosisWorms hatch from eggs and grow larger.

  • STERNGRRWorms are ectothermic. They have to be in the correct environment to maintain homeostasis. What can they do then?Move

  • Muscular SystemUnder the skin is a layer of circular muscles.Muscles contract and relax in a pattern.Worms move in an undulating style.Tiny hairs under the body help to grab the ground.

  • STERNGRRHow do they control their movement and other internal regulations?How do they sense their environment?Nervous system.

  • Nervous SystemWorms have a head with a brain.The brain surrounds the mouth area.There is a central nerve cord.Each segment has nerves that branch off the central cord.

    Why is it important to have a brain?

  • STERNGRRWhat is a hermaphrodite?Both sexes.What type of cell division produces gametes?

  • Reproductive SystemCan reproduce by sexual and asexual means.The Clitellum is a section of skin that makes a sac or cocoon for the fertilized eggs.During sexual reproduction both worms give sperm to the others clitellum.Can drop sections of the clitellum to do asexual reproduction.

  • InsectsGrasshopper,Butterfly, & Beetle

  • Anatomy VocabularyBody Systems Digestive System, Nervous System, Circulatory System, Excretory System, Muscular System, Skeletal System, Respiratory SystemSpiracle holes for air to enter.Tracheal Tubes tubes that bring air from the spiracle to the inside of the body.Malpighian Tubules tubes that filter the blood.

  • InsectsInsects have semi complex body systems.

  • STERNGRRWhat do animals synthesize?

    Proteins, Lipids, Nucleic Acids, Large Carbohydrates

  • STERNGRRWhat do insects need to transport around their bodies?How do insects transport things around their bodies?

    Oxygen, CO2, nutrients

  • Open Circulatory SystemInsects have a primitive heart.The heart is a giant vessel at the top of the body.It pumps green blood.No veins.

  • STERNGRRWhat do insects need to excrete from their bodies?

    CO2NitrogenWaterSaltsSolid waste

  • Excretory SystemInsects have two Malpighian Tubes. They filter the blood and pass urine to the digestive track.

    Why would it be a disadvantage to dump urine into the digestive track?It could get re-absorbed.

  • STERNGRRWhat kind of respiration do insects do?Aerobic Cellular RespirationWhat kind of gas goes in?OxygenWhat kind of gas goes out?Carbon Dioxide

  • Respiratory SystemInsects have a tracheal system.Their movements bring air into the spiracles.Tracheal tubes bring air to the open circulatory system.

  • STERNGRRInsects are heterotrophs (consumers).Where do insects get their nutrients?Eat plants or insectsWhat is the name for an organism that only eats producers?HerbivoresWhat is a name for an organism that eats only consumers?Carnivores

  • Digestive SystemMouth specialized for chewing, sucking, or piercing.Simple digestive track to absorb nutrients.

  • STERNGRRInsects can grow and develop in two ways.

    EggLarvaePupaAdult

    Insects molt their old exoskeleton and grow a new one.

    EggNymphAdult

  • eggsnymphswinged adult

  • STERNGRRInsects are ectothermic. They have to be in the correct environment to maintain homeostasis. What must do?Move

  • Muscular Skeletal SystemInsects have muscles and an exoskeleton that work together for movement.Muscles dont push.Two work in opposite directions.

  • STERNGRRHow do they control their movement and other internal regulations?How do they sense their environment?Nervous systemFive senses .

  • Nervous SystemInsects have a brain.Insects have a nerve net that branches from two central nerves that run on the belly.Insects have antennae for smelling and touching the environment.Insects have simple eyes and compound eyes.

  • STERNGRRInsects lay eggs.Most do sexual reproduction but a few can do asexual reproduction by budding.Can be internal or external fertilization.

  • Damsel Fly MatingFirefliesBedbugPraying MantisBeeFly