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

7. Cold-Blooded vs. Warm-Blooded
Ectotherms
ENDOTHERMS
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
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

8. 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)

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

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

11. 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)