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6th Grade Ch 6

Intro to Animals & Cnidarians

the Animal Kingdom is divided into 35 different ___ phyla
Animal phyla can be classified into vertebrates or invertebrates based on ___ and ___ physical characteristics. external; internal
The characteristics of animals include multicellular; heterotrophs,need to obtain food and oxygen for energy; maintain internal conditions, and reproduce.
vertebrates animals that have a backbone
invertebrates animals that do not have a backbone
sponges Very simple animals that have many pores (holes) through which water flows
Water flows into a ___ ___ and out through a hole in the top of a sponge. central cavity
___ obtain food and eliminate wastes as water passes through their bodies. sponges
Sponges have specialized ___ for obtaining food and oxygen from the water. cells
adaptation special structures that enable animals to survive in their environment.
Adaptations allow animals to ___ themselves, to ___, and to obtain ___. defend; move; resources
Skin color or patterns allow an animal to ___ from or ___ a predator. hide; warn
Skin color can be used to ___ an animal. camouflage
Patterns can be used to ___ another animal. mimic
Animals can use horns, claws, quills, stingers, or venom to make a direct attack ___. painful
Some animals emit a strong ___ to prevent an attack from a predator. smell
Squid and octopus release a cloud of ___ to escape from predators. ink
exoskeleton an external shell or skeleton that can be used for protection.
omnivore an animal that eats both plants and animals
herbivore an animal that eats only plants
carnivore an animal that eats other animals.
spicules sharp pointed structures that provide protection and support for sponges.
spongin fibrous material that provides support and protection for sponges.
sessile an organism that remains in one place for most of its lifetime.
polyp the vase shaped, sessile form of a cnidarian.
medusa bell shaped, free swimming form of a cnidarian.
Created by: Ms. Phillips