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59 Cards in this Set

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Sponges show this type of symmetry
Asymmetry
Tissue organization showing no body cavity
Acoelomate
Pseudocoelomates lack this structure
Mesoderm
All cnidarians show this type of symmetry
Radial
Sponges are in this phylum
Porifera
This phase of cnidarian life is stuck in one spot
Sessile
Cnidarians have stinging cells called this
Nematocysts
This body form has tentacles reaching upward
Polyp
This body form has tentacles hanging down
Medusa
This layer of Mollusks secretes the shell (in SOME)
Mantle
The 3 layers of ALL Mollusks are
Mantle, Foot, Visceral Mass
Tapeworms and flatworms are in this phylum
Platyhelminthes
Clams and oysters are this type of Mollusk
Bivalves
Starfish and sand dollars are in this phylum
Echinodermata
Class Osteichthyes have skeletons made fo this
Bone
We worked with this microscopic animal in Lab
Hydra
Sharks, skates and rays are part of this class
Chondrichthyes
Squid and octopus are this type of Mollusk
Cephalopods
This class relies on water for ALL or PART of their life cycle
Amphibia
This is the largest order of vertebrate mammals
Rodentia
This order of mammmals has no fur or hair
Cetacea
These animals are in the order Chrioptera
Bats
Rabbits, hares and pika are in this order
Lagomorpha
All mammals have these things
Hair and Mammary glands
Superclass Agnatha lack this structure
jaws
Coelacanth have these type of fins
Lobed
Phylum Platyhelminthes were the first to show this development
Cephalization
Subphylum Chelicerata have these specialized appendages
Pinchers
Earthworms are in this phylum
Annelida
Orders of hoofed animals
Perissodactyla & Artiodactyla
Characteristics of Chordates
1. Nerve cord
2. Dorsal hollow nerve cord (instead of vertebrae)
3. Pharyngeal pouches
5 characteristics of all animals
1. Hetertrophic and acquire food by ingestion or digestion
2. Power of motion/locomotion by means of muscle fibers
3. Multicellular, cells specialized to form organs/tissues
4. Life cycle where adult always diploid
5. Sexual reproduction and produce embryo that undergoes specific stages of development
Sequence of Classification
Kingdom Phylum Class Order Family Genus Species
asymmetry
a body plan having no particular symmetry
bilateral symmetry
Body plan having to corresponding and complementary halves
cephalization
development of a well-recognized anterior head with concentrated nerve masses and receptors
coelom
a body cavity lying between the digestive cavity that also serves a circulatory (transport) function in animals that lack a circulatory system
hermaphroditic
characterizes an animal having both male and female sex organs
invertebrate
referring to an animal without a serial arrangement of vertebae, or a backbone
mesoglea
a jellylike layer between the epidermis and the gastrodermis of cnidaria
nematocyst
In cnidaria, a capsule that contains a threadlike fiber whose release aids in the the capture of prey
pseudocoelem
a body cavity lying between the digestive tract and body wall that is incompletely lined by mesoderm
radial symmetry
Body plan in which similar parts are arranged around a central axis, like spokes of a wheel
sessile filter feeder
an organism that stays in one place and filters its food from the water
spicule
a skeletal structure of sponges composed of calcium carbonate or sillicate
annelid
a member of the phylum Annelida, which includes clam worms, tubeworms, earthworms, and leeches; characterized by a segmented body
arthropod
a member of the phylum arthropoda, which includes lobsters, insects, and spiders; characterized by jointed appendages
chitin
a strong bu flexible nitrogenous polysaccharide found in the exoskeleton of arthropods
jointed appendage
a freely moveable appendage of arthropods
metamorphosis
a change in shape and form that some animals, such as insects, undergo during development
Mullusk
member of the phylum mollusca, that includes squids, clams, snails, and chitons; characterized by visceral mass, a mantle, and a foot
molt
periodic shedding of the exoskeleton in arthropods
rephlidium
segmentally arranged, paired excretory tubules of many invertebrates, as in the earthworm, where the contents are released through a nephridiospore
protostome
a group of coelomate animals in which the first embryonic opening (the blastospore) is associated with the mouth
segmentation
repetition of body units as is seen in the earthworm
trachea
an air tube in insects
amniote egg
an egg that has an amnion, as seen during the development of reptiles, birds, and mammals
amphibian
a member of a class of terrestrial vertebrates that includes frogs, toads, and salamanders; they are still tied to a watery environment for reproduction
echinoderm
a member of a phylum of marine animals that includes sea stars, sea urchins, and sand dollars; characterized by radial symmetry and a water vascular system