Untitled Flashcard Set

what phylum is lab 6? Phylum Arthropoda
what are the key characteristics of Phylum Arthropoda? Segmented bodies with jointed appendages; ecdysis (molting); true coelom (reduced); open circulatory system; complete digestive tract
what is the largest phylum in the animal kingdom? Phylum Arthropoda
when has Phylum Arthropoda existed? Cambrian Period
what are the body tagmata in Phylum Arthropoda? Head; thorax; abdomen; cephalothorax; pygidium (in trilobites only)
which animal is only known from fossils? Subphylum Trilobita (Trilobites)
identify the figure and tagmata. Trilobite
what is the subphylum and class of horseshoe crabs? Subphylum Chelicerata; Class Merostomata
characteristics of Subphylum Chelicerata Class Merostomata? Two body tagmata; six pairs of appendages; existed since Cambrian Period; little change from fossils
identify the body tagmata of a horseshoe crab. Horseshoe crab
function of chelicerae in horseshoe crab? Picks up food and puts it in the mouth
function of pedipalps in horseshoe crab? Locomotion; males grasp females during mating
function of gill opercula in horseshoe crab? Swim slowly; protect and aerate book gills underneath
function of telson in horseshoe crab? Steering while swimming; flips body back over
what is the phylum and class of spiders, scorpions, and ticks? Subphylum Chelicerata; Class Arachnida
function of chelicerae in arachnids? Feeding and self-defense
function of pedipalps in arachnids? Sensory input; manipulate prey; sperm transfer in males
what are the subphylum and classes of centipedes and millipedes? Subphylum Myriapoda; Class Chilopoda (centipedes); Class Diplopoda (millipedes)
difference between centipedes and millipedes? Centipedes: 1 pair of legs per segment; Millipedes: 2 pairs of legs per segment
subphylum and class of crayfish? Subphylum Crustacea; Class Malacostraca
characteristics of Subphylum Crustacea Class Malacostraca? Two body tagmata; two pairs of antennae; biramous appendages (branched)
function of antennae in crayfish? Chemosensory and tactile reception
function of maxillipeds in crayfish? Handling food
function of mandibles in crayfish? Chewing and grinding food
function of chelipeds in crayfish? Self-defense; grasp prey and food items
function of swimmerets in crayfish? Swimming
function of uropods in crayfish? Backward movement; protect offspring
function of gills in crayfish? Respiration
function of gastric mill in crayfish? Grind food into smaller particles
function of antennal glands in crayfish? Excrete metabolic waste
subphylum and class of insects? Subphylum Hexapoda; Class Insecta
characteristics of Subphylum Hexapoda Class Insecta? Three body tagmata; one pair of antennae; uniramous appendages; six legs
function of antennae in grasshoppers? Chemosensory and tactile reception
function of wings in grasshoppers? Flight
function of spiracles in grasshoppers? Openings to respiratory system; connect to tracheae
function of ovipositor in grasshoppers? Digs and deposits eggs in soil
function of crop in grasshoppers? Temporarily stores food before digestion
function of Malpighian tubules? Collect and excrete metabolic waste into digestive tract
what phylums are covered in lab 7? Phylum Echinodermata; Phylum Chordata
classes in Phylum Echinodermata? Class Asteroidea; Class Ophiuroidea; Class Echinoidea; Class Holothuroidea; Class Crinoidea
subphylums in Phylum Chordata? Subphylum Urochordata; Subphylum Cephalochordata
key characteristics of Phylum Echinodermata? Lack cephalization; pentaradial symmetry in adults; oral side with mouth, aboral side opposite; calcareous endoskeleton; water vascular system; most dioecious