BIO 182 LAB FINAL QUESTIONS AND
ANSWERS WITH SOLUTIONS 2024
Distinguish Characteristics - ANSWER
Phylum Porifera Characteristics - ANSWER - sponges
- considered the basal animal
- sessile animals
- lack true tissues
-filter feeders
-hermaphrodites
phylum Cnidaria characteristics - ANSWER - have true tissues
-gastrovascular cavity
-ring of tentacles with cnidocytes to capture prey
- polys and medusa
phylum Platyhelminthes - ANSWER flatworms
-dorsoventrally flattened bodies
- Flat shape increases surface area for nutrient, gas, and waste exchange
- Found in marine, freshwater, and damp terrestrial habitats
- Schistosomiasis is a disease from trematodes that causes pain, anemia, and diarrhea
phylum Annelida - ANSWER - segmented worms
-found in salt water and fresh water and damp soil
Two main groups:
-Errantians: well developed head, parapodia with chaetae
-Sedentarians: reduced head, no parapoida
, phylum Mollusca - ANSWER - Have 3 main body parts: Muscular foot, visceral mass, and a mantle
- clade polyplacophora (chitons)
-clade gastropoda
-clade bivalvia
- clade cephalopoda
phylum Nematoda - ANSWER roundworms
- aquatic habitats, in the soil, in the moist tissue of plants, and in the body fluid and tissue of animals
- These are free-living worms that are involved in decomposition and nutrient recycling
- Many are parasites of both plants and animals
- Trichinella spiralis
phylum Arthropoda - ANSWER - found in every habitat
- Possess jointed, paired appendages that are modified for walking, feeding, sensory reception,
reproduction, and defense
phylum Echinodermata - ANSWER -Radially symmetrical as adults; bilaterally symmetrical as juveniles
-Unique water vascular system for movement and feeding
-5 part body organization
Identify and classify specimen - ANSWER
Glass sponge (Leucosolenia) - ANSWER Porifera
Sheep's Wool Sponge - ANSWER Porifera
Hard Head Sponge - ANSWER Porifera
ANSWERS WITH SOLUTIONS 2024
Distinguish Characteristics - ANSWER
Phylum Porifera Characteristics - ANSWER - sponges
- considered the basal animal
- sessile animals
- lack true tissues
-filter feeders
-hermaphrodites
phylum Cnidaria characteristics - ANSWER - have true tissues
-gastrovascular cavity
-ring of tentacles with cnidocytes to capture prey
- polys and medusa
phylum Platyhelminthes - ANSWER flatworms
-dorsoventrally flattened bodies
- Flat shape increases surface area for nutrient, gas, and waste exchange
- Found in marine, freshwater, and damp terrestrial habitats
- Schistosomiasis is a disease from trematodes that causes pain, anemia, and diarrhea
phylum Annelida - ANSWER - segmented worms
-found in salt water and fresh water and damp soil
Two main groups:
-Errantians: well developed head, parapodia with chaetae
-Sedentarians: reduced head, no parapoida
, phylum Mollusca - ANSWER - Have 3 main body parts: Muscular foot, visceral mass, and a mantle
- clade polyplacophora (chitons)
-clade gastropoda
-clade bivalvia
- clade cephalopoda
phylum Nematoda - ANSWER roundworms
- aquatic habitats, in the soil, in the moist tissue of plants, and in the body fluid and tissue of animals
- These are free-living worms that are involved in decomposition and nutrient recycling
- Many are parasites of both plants and animals
- Trichinella spiralis
phylum Arthropoda - ANSWER - found in every habitat
- Possess jointed, paired appendages that are modified for walking, feeding, sensory reception,
reproduction, and defense
phylum Echinodermata - ANSWER -Radially symmetrical as adults; bilaterally symmetrical as juveniles
-Unique water vascular system for movement and feeding
-5 part body organization
Identify and classify specimen - ANSWER
Glass sponge (Leucosolenia) - ANSWER Porifera
Sheep's Wool Sponge - ANSWER Porifera
Hard Head Sponge - ANSWER Porifera
