Animal Characteristics 1
Animals are made of these types of cells.
eukaryotic cells
An animal with a backbone.
vertebrate
Arthropods with three body segments and six legs.
insects
Long soft-bodied animals with bilateral symmetry.
worms
All vertebrates have vertebrae and skulls and an internal skeleton, known as this.
endoskeleton
This type of animal can exchange gases through its moist skin and can live in water or on land.
amphibians
When an imaginary line can be drawn down the middle to divide the object into two mirror-image halves.
bilateral symmetry
When an animal's digestive tract has only one opening to draw food in and expel waste, they are known to have this.
incomplete guts
Arthropods with eight or ten legs. Shrimps, crabs, and lobsters are examples.
crustaceans
Jellyfish and anemones belong to this phylum?
Cnidaria
The largest group of fish, including the ones you are most familiar with are called this.
bony fish
Snakes and lizards shed their skin in a process called this.
molting
Jellyfish have this type of symmetry.
radial symmetry
This type of animal has had a notochord at some point in their life, that may or may not have developed into a backbone.
chordate
Animals with no symmetry, cephalization, or gut. In the phylum Porifera meaning "pore-bearer.
sponges
All cnidarians have these stinging cells used to capture food.
cnidocytes
Lampreys and hagfish are two examples of this.
jawless fish
This group of animals has hair and produces milk.
mammals
When there is no imaginary line that will divide an object into two mirror-image halves.
asymmetry
An animal that can regulate its inner temperatures.
endotherm
This phylum includes snails, slugs, octopuses, squids, clams, oysters, and scallops.
Mollusks (or Mollusca)
This phylum has the most species of any animal phylum. They have jointed appendages and an exoskeleton.
arthropods
Crocodilians have this many chambers in their hearts.
four
This type of mammal raises their young in pouches. (Ex. kangaroos, koalas, and opossums)
marsupials
When an animal has their sensory organs and brain clustered at one end of their body - the head.
cephalization
Baraminology comes from the Hebrew words bara and min that together mean this.
"created kind"
Sea stars, sea urchins, and sea cucumbers. They have spiny skin and most have radial symmetry.
echinoderms
Spiders, scorpions, and ticks are called this, which is taken from the name of their mouthpart.
chelicertes
Snakes and lizards are know as this.
squamates
Duck-billed platypus and echidna are two examples of egg-laying mammals called this.
monotremes