BIOL 197L – LAB #8 – INVERTEBRATE DIVERSITY AND ANATOMY II
Which phyla did we study in lab?
Phylum Arthropoda Subphylum Crustacea
Phylum Nematoda
Phylum Arthropoda Class insecta
Phylum Echinodermata
What phylum does this organism belong to? What other classification can be used to describe it?
Arthropoda Subphylum Crustacea Genus Procambrus
Identify: Which one of these organisms is a female; which is a male?
Note the swimmerets Male Female
Identify:
Antenna
Identify: Antenna Eye
Identify: Antenna Eye Head
Identify: Antenna Eye HeadThorax
Identify: Antenna Eye HeadThorax Carapace
Identify: Antenna Eye HeadThorax Carapace Abdomen
Identify: Antenna Eye HeadThorax Carapace Abdomen Swimmerets
Identify: Antenna Eye HeadThorax Carapace Abdomen Swimmerets Tail
Identify: Antenna Eye HeadThorax Carapace Abdomen Swimmerets Tail Walking legs
Identify:
The gills
Identify:
The heart
The holes in the crawfish’s heart are known as:
Ostia
Identify:
The stomach
Identify: Structure Purpose
A green gland Excretion of wastes
What phylum does this organism belong to? What other classifications can be used to describe this organism?
Arthropoda Class Insecta Order Orthoptera Genus Romalea
Identify:
Head
Identify: Head Thorax
Identify: Head Thorax Abdomen
Identify: Head Thorax Abdomen Fore wing
Identify: Head Thorax Abdomen Fore wing Hind wing
Identify: Head Thorax Abdomen Fore wing Hind wing Spiracles
Identify: Head Thorax Abdomen Fore wing Hind wing Spiracles Mouthparts
Identify: Head Thorax Abdomen Fore wing Hind wing Spiracles Mouthparts Compound eye
Identify: Head Thorax Abdomen Fore wing Hind wing Spiracles Mouthparts Compound eye Ocelli
Identify: Head Thorax Abdomen Fore wing Hind wing Spiracles Mouthparts Compound eye Ocelli Antenna
The type of sound production that is produced by grasshoppers is:
Stridulation
Identify: Structure Purpose
Fore wings They serve as a covering for the hind wings when at rest
The fore wings are borne on the mesothorax
Identify:
Hind wings Note the wing veins
What is the tracheae?
The air tubes or gas exchange system
Identify: Structure Purpose
Spiracles The site of oxygen diffusion (the spiracles open up into the system of tracheal tubules. These two body parts constitute the respiratory system of the grasshopper.)
Identify: Structure Purpose
Tympanic membrane Serve as an organ of hearing
What type of coelom does Romalea have?
Hemocoel
What type of circulation does the grasshopper have?
Open circulation
Identify: Structure Purpose
Crop Site of food storage Note that the esophagus is before the Crop, if something is pinned there, it could be the esophagus
Identify: Structure Purpose
Gastric ceca Secrete digestive enzyme and aid in food absorption
Identify: Structure Purpose
Stomach Where digestion takes place
Identify: Structure Purpose
Malphigian tubules These tubules remove wastes and salts from the blood
The Malphigian tubules may also look like #9:
Identify: Structure
Intestines
Identify: Structure
Rectum
Identify:
Ventral nerve cord
Another image for examination:
Identify the male and female Romalea.
Identify: Structure Purpose Male Female
Identify: Male Female Ovipositor (the Site of egg dispersal)
What phylum does this organism belong to?
Nematoda
Which genera did we study that are in the phylum Nematoda?
Turbatrix (the vinegar eel)
Trichinella
Ascaris lumbricoides
Identify: Phylum Genus
Nematoda Trichinella Encysted in the muscle tissue of the pig
Identify: Phylum Genus Female or male? Does this organism cause a disease? If yes, what is the disease called?
Nematoda Trichinella Female Yes, trichinosis
Nematodes (AKA round worms) are commonly dioecious and they use a hardened structure known as a spicule during copulation.
What phylum does organism belong to? What genus does this organism belong to?
Echinodermata Asterias
What are two unique features of the Echinodermata?
Calcareous endoskeletons Water vascular systems Their larvae are bilaterally symmetrical, while the adults exhibit radial symmetry
Identify: Structure Pupose
Madreporite The intake of water into the water vascular system Located on the aboral surface
Spines
Identify: