Arthropoda, echinodermata

Question 1

Arthropoda

Answer 1

Insects, spiders, crustaceans

Question 2

Arthropoda characteristics

Answer 2

Triploblastic
Coelomate
Protostome
bilateral symmetry
one way digestion
excretion: malpighian tubules, excrete uric acid
open circ system, hemolymph instead of blood
Respiratory system: books gills (aquatic), book lungs (spiders), tracheal tubes (terrestrial)

Question 3

Arthropoda body characteristics

Answer 3

Jointed legs
chitin exoskeleton
tagmata: specialized segments in their body plan
Cephalothroax: term used to describe fusion of head and thorax tagmata (spiders/ crustaceans)
born nymph or larvae

Question 4

Arthropoda insects

Answer 4

Larget number of species
six legs
spiracles: opening on their exoskeleton for air
tracheal tubes for respiration
one pair of antennae

Question 5

arthropoda crustaceans

Answer 5

lobset, crabs, shrimp, crayfish
book gills for respiration
cephalothorax
two pairs of antennae
some use green glans instead of malpighian tubules for excretion

Question 6

Arthropoda arachnids

Answer 6

Spiders, ticks, scorpions
eight legs
book lungs for gas exchange
cephalothorax
no antennae

Question 7

Echinodermata

Answer 7

starfish, cucumbers, sea urchins

Question 8

Echinodermata characteristics

Answer 8

Triploblastic
coelmate
deuterostome (anus forms first)
radial symmetry as adults
bilateral as larvae
complete one way digestion
open circulatory system
Reproduction: asexual- fragmentation, sexual- external fertilization
water vascular system: movement of nutrient and waste
podocyte: cells that filter the bodily fluids in echinoderms