What is an animal?
The ______________ is called zoology.
Study of animals
An invertebrate is an animal______ a__________.
Without, backbone
Daily double. The sponge is an animal whose existence depends on the ____ ____ in its body through which ____ ____ to bring in ____ and ____ and carry out ____.
many pores, pumps water, food, oxygen, waste
The jellyfish belongs to the phylum _____.
Cnidaria
Some flatworms are ___ - ____which means they do not depend on other organisms for survival, while others are ____. Parasitic flatworms live inside _____ and use them for nourishment.
Free-living, parasitic, hosts
Animals are_________, so they must obtain food rather than make it by photosynthesis.
Consumers
Although an invertebrate does not have a backbone, it does have a ________.
skeleton
Pores are so essential to animals and the sponge phylum that the phylum was named porifera, which means “_____”.
pore-bearer
Jellyfish have ____ with stinging cells surrounding their mouths.
Tentacles
Like flatworms, some are ____ and can be used to harm other organisms while others are___ - ____.
parasites, free-living
Most animals-in fact, about ___ of animals-are___________.
95%, invertebrates
An animal may either have an ____ or _____ skeleton made of materials similar to limestone, glass, protein or even water.
internal, external
Adult sponges are _______, which means they are unable to move from place to place.
sessile
The bodies of cnidarians have ____ ____ , which means they can be divided into equal halves by any plane along the length of the organism.
Radial symmetry
Earthworms ____ plants and animal mater in the soil. Their waste makes soil rich in nutrients for ____ to grow.
ingest, plants
Animals are organisms that are ________ and ________.
eukaryotic, multicellular
______ are particularly noteworthy mollusks because they can ____an arm if one is lost.
Cephalopoda, regenerate
Sponges are made of ____, (a flexible, fibrous protein), ____ (stiff little spikes made of calcium carbonate or silicone), or both.
Spongin, spicules
Cnidarians have two general body shapes: umbrella-shaped called a _____ or tubular, called a _____.
Medusa, polyp
Arthropods have hard, no living outer coverings called ____ to protect and support them.
Exoskeletons
Most animals can move during at least part of their lifecycle, ___ ___ ___ ( rather than just absorb it), have___, and reproduce sexually.
Eat their food, organs
Like an octopus, it can ____ an arm if it’s lost.
regenerate
The cells lining the central cavity, called ____ ____, have flagella.
Collar cells
_______ are painful stingers found in special cells on the other layer of jellyfish and similar organisms. They function mainly to provide food for the jellyfish, but they can also be used in ______.
Nematocysts, defense
Daily Double. The three body parts of an insect are typically the ____ , ____ , _____ and _____ legs.
head, thorax, abdomen, six