WSU BIOLOGY 106 EXAM 3 ACTUAL EXAM 2 LATEST VERSIONS (VERSION A & B)2023-2024 ACTUAL
EXAM 210 QUESTIONS AND CORRECT DETAILED ANSWERS
Arthropods - (answer) Phyla with greatest amount of diversity with 85% of animal spp
700 million years ago - (answer) When the first animals originated
Porifera (sponges) - (answer) Phyla with no tissues, muscles, nerves, or specialized organs
Choanocytes - (answer) Flow of water and food acquisition in sponges
Amoebocytes - (answer) Found in sponges, these cells are mobile and perform numerous functions,
including reproduction, transport of food particles to nonfeeding cells, and secretion of material that
forms the spicules
Spicules - (answer) Found in sponges, these consist of inorganic materials and support the animal
Cnidaria (jellyfish) - (answer) Phyla with 2 tissue layers, contractile muscle and nerve cells,
gastrovascular cavity, and radial symmetry
Metazoa - (answer) multicellular animals
Cambrian Explosion - (answer) Diversity of large animals increased dramatically around 550 million
years ago
Three tissue layers - (answer) ectoderm, mesoderm, endoderm
Bilateral symmetry - (answer) Posterior/anterior
left/right senses concentrated in head and direction of movement
Coelom - (answer) Body cavity with space to put organs
,WSU BIOLOGY 106 EXAM 3 ACTUAL EXAM 2 LATEST VERSIONS (VERSION A & B)2023-2024 ACTUAL
EXAM 210 QUESTIONS AND CORRECT DETAILED ANSWERS
Lophotrochozoa - (answer) A phyla group that has feeding and locomotory similarities
Ectoprocta - (answer) Colonial, filter feeders
All cells are identical
Cannot move
Rotifera - (answer) eutely and small phylum (< 3mm)
Filter feeders
Have set number of cells
Cryptobiosis - (answer) To hide life
What occurs when environment changes around rotifera
How rotifera develop - (answer) Individual cells enlarge rather than divide
Annelida - (answer) Segmented worms
Hydrostatic skeleton
Hydrostatic skeleton - (answer) skeleton made of fluid-filled body segments that work with muscles to
allow the animal to move
Metanephridia - (answer) Tubes that process metabolic waste in annelidas
Mollusca - (answer) Visceral mass, mantle, and foot
Contain radula
Radula - (answer) An organ covered with teeth that mollusks use to scrape food into their mouths
, WSU BIOLOGY 106 EXAM 3 ACTUAL EXAM 2 LATEST VERSIONS (VERSION A & B)2023-2024 ACTUAL
EXAM 210 QUESTIONS AND CORRECT DETAILED ANSWERS
Nudibranchs - (answer) Sea slugs
Bivalves - (answer) mollusks that have two shells held together by hinges and strong muscles (clams)
Cephalopods - (answer) octopus, squid
Platyhelminthes - (answer) Phylum of flatworms
80% are parasitic
Ecdysozoa - (answer) Nematoda and Arthropoda
Nematodes - (answer) Roundworms
cuticle, molt, eutetly, ubiquitous, a few spp parasitic
Abundant in soil and aquatic habitats
Pinworms - (answer) Parasite of the gut
Common in young children
Hookworm - (answer) Parasitic worm that consumes blood
filarial roundworms - (answer) Parasitic worm that causes elephantiasis or destruction of lymphatic
system
Arthropoda - (answer) Phylum where all species have a segmented exoskeleton and jointed
appendages
Insects - (answer) The most numerous kind of species of the arthropod phyla
Tagmatization - (answer) The fusion of segments with specialized f(x) in arthropods
EXAM 210 QUESTIONS AND CORRECT DETAILED ANSWERS
Arthropods - (answer) Phyla with greatest amount of diversity with 85% of animal spp
700 million years ago - (answer) When the first animals originated
Porifera (sponges) - (answer) Phyla with no tissues, muscles, nerves, or specialized organs
Choanocytes - (answer) Flow of water and food acquisition in sponges
Amoebocytes - (answer) Found in sponges, these cells are mobile and perform numerous functions,
including reproduction, transport of food particles to nonfeeding cells, and secretion of material that
forms the spicules
Spicules - (answer) Found in sponges, these consist of inorganic materials and support the animal
Cnidaria (jellyfish) - (answer) Phyla with 2 tissue layers, contractile muscle and nerve cells,
gastrovascular cavity, and radial symmetry
Metazoa - (answer) multicellular animals
Cambrian Explosion - (answer) Diversity of large animals increased dramatically around 550 million
years ago
Three tissue layers - (answer) ectoderm, mesoderm, endoderm
Bilateral symmetry - (answer) Posterior/anterior
left/right senses concentrated in head and direction of movement
Coelom - (answer) Body cavity with space to put organs
,WSU BIOLOGY 106 EXAM 3 ACTUAL EXAM 2 LATEST VERSIONS (VERSION A & B)2023-2024 ACTUAL
EXAM 210 QUESTIONS AND CORRECT DETAILED ANSWERS
Lophotrochozoa - (answer) A phyla group that has feeding and locomotory similarities
Ectoprocta - (answer) Colonial, filter feeders
All cells are identical
Cannot move
Rotifera - (answer) eutely and small phylum (< 3mm)
Filter feeders
Have set number of cells
Cryptobiosis - (answer) To hide life
What occurs when environment changes around rotifera
How rotifera develop - (answer) Individual cells enlarge rather than divide
Annelida - (answer) Segmented worms
Hydrostatic skeleton
Hydrostatic skeleton - (answer) skeleton made of fluid-filled body segments that work with muscles to
allow the animal to move
Metanephridia - (answer) Tubes that process metabolic waste in annelidas
Mollusca - (answer) Visceral mass, mantle, and foot
Contain radula
Radula - (answer) An organ covered with teeth that mollusks use to scrape food into their mouths
, WSU BIOLOGY 106 EXAM 3 ACTUAL EXAM 2 LATEST VERSIONS (VERSION A & B)2023-2024 ACTUAL
EXAM 210 QUESTIONS AND CORRECT DETAILED ANSWERS
Nudibranchs - (answer) Sea slugs
Bivalves - (answer) mollusks that have two shells held together by hinges and strong muscles (clams)
Cephalopods - (answer) octopus, squid
Platyhelminthes - (answer) Phylum of flatworms
80% are parasitic
Ecdysozoa - (answer) Nematoda and Arthropoda
Nematodes - (answer) Roundworms
cuticle, molt, eutetly, ubiquitous, a few spp parasitic
Abundant in soil and aquatic habitats
Pinworms - (answer) Parasite of the gut
Common in young children
Hookworm - (answer) Parasitic worm that consumes blood
filarial roundworms - (answer) Parasitic worm that causes elephantiasis or destruction of lymphatic
system
Arthropoda - (answer) Phylum where all species have a segmented exoskeleton and jointed
appendages
Insects - (answer) The most numerous kind of species of the arthropod phyla
Tagmatization - (answer) The fusion of segments with specialized f(x) in arthropods
