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—•𝑻𝒀𝑷𝑬𝑺 𝑶𝑭 𝑨𝑵𝑰𝑴𝑨𝑳𝑺•—

• 𝗔𝗠𝗣𝗛𝗜𝗕𝗜𝗔𝗡𝗦
—All amphibians are vertebrates, and they need moist environments or water to survive.
—They are cold-blooded.
—They absorb water and breathe through their thin skin.
—They have at least one special skin gland used for defense.
—Most follow the life cycle of egg-larva-adult.

Examples:
frogs
newts
salamanders
toads

• 𝗕𝗜𝗥𝗗𝗦
—Birds are a type of warm-blooded vertebrate that are adapted to fly.
—Not all birds can fly, but they do all have wings.
—Birds have beaks that help them catch and swallow food.
—The digestive system of a bird allows it to eat whenever it can and digest the food later.
—Birds lay eggs to reproduce.
—They are endothermic, meaning they maintain their own constant body temperature.
—They are bipedal, which means they have two legs.
—They have hollow bones and their bodies are covered in feathers.
—Birds belong to the class called Aves.

Examples:
parrots
penguins
pigeons

• 𝗙𝗜𝗦𝗛
—Fish are also vertebrates, and they are considered the oldest-known vertebrates.
—They are ectothermic, or cold-blooded, which means they rely on their surroundings to regulate their body temperature.
—Fish have fins.
—Most, but not all, fish have bodies covered in scales and breathe through gills.
—Fish live under water.

Examples:
salmon
seahorses
sharks

• 𝗠𝗔𝗠𝗠𝗔𝗟𝗦
—Mammals are another type of vertebrate that belong to the class Mammalia.
—Young mammals get nourishment from milk produced by their mothers.
—Most mammals have hair.
—Their jaw is hinged directly to their skull unlike all other vertebrates.
—Almost all mammals give birth to live babies.
—They are endothermic, or warm-blooded.

Examples:
elephants
whales
humans

• 𝗥𝗘𝗣𝗧𝗜𝗟𝗘𝗦
—Reptiles are thought to be the first vertebrates to live completely on land. But, not all reptiles live only on land today.
—They are cold-blooded, or ectothermic.
—They lay eggs to reproduce.
—They have four legs or descended from animals with four legs.
—They breathe through lungs
—Their bodies are covered in scales or scutes.

Examples:
crocodiles
snakes
turtles
lizards

• 𝗜𝗡𝗩𝗘𝗥𝗧𝗘𝗕𝗥𝗔𝗧𝗘𝗦
—Approximately 95% of all animals are invertebrates. Invertebrates do not have a backbone. There are different types of invertebrates, but they all share a few characteristics.
—They are made up of many cells that work together, or multicellular.
—Most, but not all, have tissues, cells that work together in a more complex way.
—Most, but not all, can move.
—There are over 35 phyla of invertebrates.
—They generally have soft bodies.

There are eight phyla of invertebrates that are alive today.
𝗔𝗡𝗡𝗘𝗟𝗜𝗗𝗔 - have a segmented body and primitive brain
𝗔𝗥𝗧𝗛𝗥𝗢𝗣𝗢𝗗𝗔 - have jointed appendages and an exoskeleton
𝗖𝗡𝗜𝗗𝗔𝗥𝗜𝗔 - have tissues and an incomplete digestive system
𝗘𝗖𝗛𝗜𝗡𝗢𝗗𝗘𝗥𝗠𝗔𝗧𝗔 - have some type of spiny structure on their outside
𝗠𝗢𝗟𝗟𝗨𝗦𝗖𝗔 - generally have soft bodies and a hard exoskeleton
𝗡𝗘𝗠𝗔𝗧𝗢𝗗𝗔 - unsegmented with worm-shaped bodies
𝗣𝗟𝗔𝗧𝗬𝗛𝗘𝗟𝗠𝗜𝗡𝗧𝗛𝗘𝗦 - soft, ribbon-like worms with no respiratory system
𝗣𝗢𝗙𝗜𝗙𝗘𝗥𝗔 - multicellular organisms living in water with no organs or tissues

Examples:
snails
spiders
leeches
squid
starfish
earthworms
insects

-Neil Kavinsky

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