Phylum Arthropoda
What is molting?
when the exoskeleton is shed in order for the animal to grow
Are Cnidarians vertebrates or invertebrates?
invertebrates
What is symbiosis?
when 2 organisms have a relationship with one and other
Are mollusks vertebrate or invertebrate?
invertebrate
What kind of symmetry do Arthropods contain?
bilateral symmetry-When split in half, both sides are symmetrical
True or False:All stings are lethal to humans
False
What is mutualism?
when both organisms benefit
True or False: if False say the correct statement:the body of a mollusk is hard but contains soft structures within them
False;the body of a mollusk is soft but contains hard structures within them
what is a Cephalothorax?
Head and Thorax combined
What are nematocysts?
stinging cells
What is commensalism?
when 1 organism benefits while the other is unaffected
Name the external body parts of a squid
Fin, Mantle, Chromatophores, Eye, Arm, Tentacles, Suction Cups, Pen
What are four types of flexible movement?
○ Eating, Walking, Swimming, Defense
describe a polyp and a Medusa
polyp-tubular and sessile
medusa-bell shaped and free swimming
What is Parasitism?
when 1 organism benefits while harming the other organism
name the internal body parts
Gills, Gonad, Heart, Brain, Beak, Ink Sac, Siphon
What does a horseshoe crab contain that has a medical use?
LAL
name the four classes of Cnidaria
Anthozoa, Scyphozoa, Cubozoa, Hydrozoa
Name the body parts and what they mean
Cephalo = Head
Pod = Foot
Mantle = Body
Radula = Tongue