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Characteristics of ANIMALS

Characteristics of ANIMALS. ALL Animals are…. Belong to the Eukarya Domain Are Eukaryotic- cells have a nucleus Multicellular - cells are specialized to carry out specific functions. Use Energy through Cellular Respiration.

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Characteristics of ANIMALS

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  1. Characteristics of ANIMALS

  2. ALL Animals are… • Belong to the Eukarya Domain • Are Eukaryotic- cells have a nucleus • Multicellular- cells are specialized to carry out specific functions.

  3. Use Energy through Cellular Respiration Cellular Respiration- the process by which cells obtain energy from the foods that you eat! Cells break down food molecules and release the energy they contain!

  4. Animals are Classified as: • Vertebrates (having a backbone) • Examples include fish, amphibians, birds, reptiles, and mammals. All vertebrates have an internal skeleton of bone and cartilage or just cartilage alone. In addition to a bony spinal column, all have a bony cranium surrounding the brain. • Have several internal organs • Invertebrates (not having a backbone) • Examples include corals, sponges, sea urchins, starfish, sand dollars, worms, snails, clams, spiders, crabs, and insects • More than 98% of animals are invertebrates; extremely diverse

  5. Cold-Blooded vs. Warm-Blooded Ectotherms ENDOTHERMS Warm Blooded Endothermic animals are those that must generate their own heat to maintain their body temperature. Organisms that generate heat internally to maintain a constant body temperature Examples: Mammals and Birds • Cold Blooded • Ectothermic animals cannot regulate its own body temperature, so its body temperature fluctuates according to its surroundings. • They warm their bodies by absorbing heat from their surroundings. • Examples: Reptiles, Fish, Amphibians

  6. Types of Symmetry • Bilateral Symmetry (can be divided into right and left halves; nearly mirror images) • Radial Symmetry (body parts arranged in a circle around a center point) • Asymmetry (not symmetrical)

  7. Asexual Reproduction in Animals budding Fragmentation • An organism breaks into two or more parts, each of which may grow into a separate individual. • Examples: flatworms and starfish • A small part of the parent’s body develops into an independent organism. • Examples: hydra, certain species of jellyfish, echinoderms, coral, tapeworms

  8. Metamorphosis(Growth & Development) Incomplete metamorphosis Complete metamorphosis Ex: Grasshopper, dragonflies, crickets, cockroaches, ants, stinkbugs Ex: Beetles, butterflies, silworms, mealworms, ladybugs, moths, flies, mosquitoes

  9. Locomotion and Respiration Different ways animals move (locomotion) Different methods of respiration (Breathing) • Sponges and jellyfish lack specialized organs for gas exchange and take in gases directly from the surrounding water. • Flatworms and annelids use their outer surfaces as gas exchange surfaces. • Arthropods, annelids, and fish use gills. • Terrestrial vertebrates utilize internal lungs . • Legs (Walk) • Limbless (Crawl) • Fins (Swim) • Wings (Fly) • Tube Feet (Sea Stars) • Tentacles (Squid, Octopi)

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