Bio 103 Review Exam 1
Biology - answer Study of life
7 Characteristics of Life - answer1. Organization and Cells, 2. Respond to Environment,
3. DNA, 4. Obtain Energy and Release Waste, 5. Growth & Development, 6.
Reproduction, 7. Change Through Time
Levels of ecosystem, levels of study - answer Biosphere, ecosystem, community,
population, organism, organ system, organ, tissue, cell, organelle, molecule
Discovery Science - answer process of describing observations
Inductive reasoning - answer using the results of a large number of observations to
make conclusion
Deductive reasoning - answers often used to set up a hypothesis
Hypothesis based Science - answer making predictions and testing them
Taxonomy - answer Study of classifying and naming organisms
Biology classifications - answerKingdom, Phylum, Class, Order, Family, Genus, Species
Writing scientific names - answerGenus - always capitalized.
species - always lower case
How many Kingdoms? - answerFive
Phylogenetic trees - answerBranching diagrams that depict hypotheses about
evolutionary relationships.
Phylum Porifera - answerSponges; are sessile, generate current of water, no tissues, all
marine-aquatic, radial symmetry and asymmetrical
Phylum Porifera characteristics - answerfilter water for food- moved through pores
(porous), current is set up by choanocytes, trap food in collar, Amoebocytes take food
particles and distribute
Phylum Cnidaria - answerJellyfish, hydras, sea anemones, coral
, Phylum Cnidaria characteristics - answeraquatic-marine, radial symmetry, basically
consist of a sac, which forms a gastrovascular cavity (gut), one opening, carnivorous,
primative muscles and nerves
Two forms of Cnidaria - answerpolyp and medusa; polyp is sessile
Cnidocytes - answerstructure that uses stinging cells to paralyze its prey
Phylum Platyhelminthes - answerFlatworms (Planaria (free living), Liver flukes,
Shistosomiasis, Tape worms)
Phylum Platyhelminthes characteristics - answerA group of often parasitical worms that
have bilateral symmetry, a one opening digestive system, and the beginnings of a brain,
has systems (repro.,nervous) but no circulatory
Shistosomiasis - answerInfection is associated with swimming in snail infested waters,
may present with inflammation of the liver and spleen as well as increased risk for
bladder cancer.
Phylum Nematoda - answerRoundworms
Phylum Nematoda characteristics - answerround- mostly circular in cross section, thick
cuticle, have a complete digestive tract - mouth -> anus, only have longitudinal muscles,
move by "thrashing" or "whipping" around, no circulatory system
Important roundworms - answer-Filarial worms - clog lymphatic vessels, "elephantiasis"
- Ascaris, hookworm, Trichinella (causes trichonosis).
- Pinworm - affects 60% of kids in the United States!
Phylum Annelida - answerSegmented worms (earthworms and leeches)
Phylum Annelida characteristics - answer- segmented,digestive tract, blood vessels,
nerve cords run the length of the animal,"heart" and blood vessels present (respire
through skin) - closed system, a primitive kidney, brain-like ganglia, many types of
muscles.
Phylum Molluska - answerSnails, Slugs, Oysters, Clams, Squids
Phylum Molluska characteristics - answera muscular foot, a dorsal(shell) covering, the
mantle, in between -> visceral mass, which contains internal organs, many have randula
(scraping tongue)
Phylum Arthropoda - answerestimated population= 1 billion billion (1018) individual
Phylum Arthropoda characteristics - answerchitinous exoskeleton, tagmata (specialized
segments), bilateral symmetry, jointed appendages, complex muscular system (no
Biology - answer Study of life
7 Characteristics of Life - answer1. Organization and Cells, 2. Respond to Environment,
3. DNA, 4. Obtain Energy and Release Waste, 5. Growth & Development, 6.
Reproduction, 7. Change Through Time
Levels of ecosystem, levels of study - answer Biosphere, ecosystem, community,
population, organism, organ system, organ, tissue, cell, organelle, molecule
Discovery Science - answer process of describing observations
Inductive reasoning - answer using the results of a large number of observations to
make conclusion
Deductive reasoning - answers often used to set up a hypothesis
Hypothesis based Science - answer making predictions and testing them
Taxonomy - answer Study of classifying and naming organisms
Biology classifications - answerKingdom, Phylum, Class, Order, Family, Genus, Species
Writing scientific names - answerGenus - always capitalized.
species - always lower case
How many Kingdoms? - answerFive
Phylogenetic trees - answerBranching diagrams that depict hypotheses about
evolutionary relationships.
Phylum Porifera - answerSponges; are sessile, generate current of water, no tissues, all
marine-aquatic, radial symmetry and asymmetrical
Phylum Porifera characteristics - answerfilter water for food- moved through pores
(porous), current is set up by choanocytes, trap food in collar, Amoebocytes take food
particles and distribute
Phylum Cnidaria - answerJellyfish, hydras, sea anemones, coral
, Phylum Cnidaria characteristics - answeraquatic-marine, radial symmetry, basically
consist of a sac, which forms a gastrovascular cavity (gut), one opening, carnivorous,
primative muscles and nerves
Two forms of Cnidaria - answerpolyp and medusa; polyp is sessile
Cnidocytes - answerstructure that uses stinging cells to paralyze its prey
Phylum Platyhelminthes - answerFlatworms (Planaria (free living), Liver flukes,
Shistosomiasis, Tape worms)
Phylum Platyhelminthes characteristics - answerA group of often parasitical worms that
have bilateral symmetry, a one opening digestive system, and the beginnings of a brain,
has systems (repro.,nervous) but no circulatory
Shistosomiasis - answerInfection is associated with swimming in snail infested waters,
may present with inflammation of the liver and spleen as well as increased risk for
bladder cancer.
Phylum Nematoda - answerRoundworms
Phylum Nematoda characteristics - answerround- mostly circular in cross section, thick
cuticle, have a complete digestive tract - mouth -> anus, only have longitudinal muscles,
move by "thrashing" or "whipping" around, no circulatory system
Important roundworms - answer-Filarial worms - clog lymphatic vessels, "elephantiasis"
- Ascaris, hookworm, Trichinella (causes trichonosis).
- Pinworm - affects 60% of kids in the United States!
Phylum Annelida - answerSegmented worms (earthworms and leeches)
Phylum Annelida characteristics - answer- segmented,digestive tract, blood vessels,
nerve cords run the length of the animal,"heart" and blood vessels present (respire
through skin) - closed system, a primitive kidney, brain-like ganglia, many types of
muscles.
Phylum Molluska - answerSnails, Slugs, Oysters, Clams, Squids
Phylum Molluska characteristics - answera muscular foot, a dorsal(shell) covering, the
mantle, in between -> visceral mass, which contains internal organs, many have randula
(scraping tongue)
Phylum Arthropoda - answerestimated population= 1 billion billion (1018) individual
Phylum Arthropoda characteristics - answerchitinous exoskeleton, tagmata (specialized
segments), bilateral symmetry, jointed appendages, complex muscular system (no
