BY 124 SI 10/06/15

Why were Phylum Nematoda and Phylum Arthropoda recently classified into a clade called Ecdysozoa?

Phylum Nematoda are also known as the ______________. They do/do not have a circulatory system. They are unsegmented and are ____________________, meaning they have a false coelom.

T/F Juveniles of parasitic nematodes (specifically Trichinella) can be found encysted in fat tissue of pork or humans.

Phylum Arthropoda’s characteristics consist of a segmented/non-segmented body, soft/hard exoskeleton, and unjointed/jointed appendages. The five modified functions for these appendages include __________, ____________, ___________ _____________, _______________, and __________. Arthropods do/do not have eyes and ____________ that help with touch and smell. Arthropods have a(n) ___________ circulatory system, which is characterized by having the organs bathed in a body fluid called hemolymph. ______________ are characteristic cells that help with immunity. Hemolymph is pumped through __________. Anthropoda has the most species of any phylum!

What are the discussed classes of Phylum Arthropoda?

Class Chelicerate are called this because of characteristic claw-like feeding appendages they have called ______________. These can be modified (scorpion vs. spider). Arachnids are a type of chelicerate. They possess _______ lungs in order to respire.

Class Myriapoda are non-terrestrial/terrestrial and have jaw-like mandibles. Lab book differentiates centipedes and millipedes.

Class Hexapoda has more species than all other forms of life combined. Insects’ excretory systems are made up of _________________ tubules. They respire through ______________ __________.

What’s the difference between complete and incomplete metamorphosis?

Two orders of Class Crustacea include ___________ and ______________.

The two Phylum of Deuterostomia are _____________ and _______________. Echinoderms include the Asteroidea (sea stars), Ophiuroidea (brittle stars), Echinoidea (sea urchins and sand dollars), Crinoidea (sea lilies and feather stars), and Holothuroidea (sea cucumbers). They have tube feet, water vascular systems, and endoskeletons. They can show asexual reproduction and regeneration.

What are the 4 key characteristics of chordates?

The common name of Cephalochordata is ______________. They are the first with all 4 chordate characteristics. They have a bladelike shape and burrow itself in the sand and are ______________ feeders. Common name of Urochordata is _______________.

T/F The adult tunicate retains all 4 chordate characteristics.

Craniates are chordates that have _______. In humans, neural crest cells will develop to become skull bones and cartilage around the _____ area. In aquatic craniates, the pharyngeal clefts evolved into ______ _______. Craniates are generally more/less muscular than tunicates and lancelets. Craniates have a heart with at least 1/2 chamber(s), red blood cells with _____________, and _____________ for excretory purposes.

What is the first class with a head? The skull is made of bone/cartilage. Everything that we’d studied until Myxini is invertebrates! They do/do not have jaws and vertebrae. They produce a lot of ________.

Vertebrates are craniates that have a _____________. The first vertebrate class is __________________, also known as the lampreys.