Ch.33 - InvertebratesWorksheetSee all chapters
All Chapters
Ch.1 - Introduction to Biology
Ch.2 - Chemistry
Ch.3 - Water
Ch.4 - Carbon
Ch.5 - Biological Molecules
Ch.6 - Cells
Ch.7 - The Membrane
Ch.8 - Energy and Metabolism
Ch.9 - Respiration
Ch.10 - Photosynthesis
Ch.11 - Cell Signaling
Ch.12 - Cell Division
Ch.13 - Meiosis
Ch.14 - Mendelian Genetics
Ch.15 - Chromosomal Theory of Inheritance
Ch.16 - DNA Synthesis
Ch.17 - Gene Expression
Ch.18 - Regulation of Expression
Ch.19 - Viruses
Ch.20 - Biotechnology
Ch.21 - Genomics
Ch.22 - Development
Ch.23 - Evolution by Natural Selection
Ch.24 - Evolution of Populations
Ch.25 - Speciation
Ch.26 - History of Life on Earth
Ch.27 - Phylogeny
Ch.28 - Prokaryotes
Ch.29 - Protists
Ch.30 - Plants
Ch.31 - Fungi
Ch.32 - Overview of Animals
Ch.33 - Invertebrates
Ch.34 - Vertebrates
Ch.35 - Plant Anatomy
Ch.36 - Vascular Plant Transport
Ch.37 - Soil
Ch.38 - Plant Reproduction
Ch.39 - Plant Sensation and Response
Ch.40 - Animal Form and Function
Ch.41 - Digestive System
Ch.42 - Circulatory System
Ch.43 - Immune System
Ch.44 - Osmoregulation and Excretion
Ch.45 - Endocrine System
Ch.46 - Animal Reproduction
Ch.47 - Nervous System
Ch.48 - Sensory Systems
Ch.49 - Muscle Systems
Ch.50 - Ecology
Ch.51 - Animal Behavior
Ch.52 - Population Ecology
Ch.53 - Community Ecology
Ch.54 - Ecosystems
Ch.55 - Conservation Biology
Porifera and Cnideria

Concept #1: Porifera and Cnideria

Additional Problems
A class of cnidarians that lacks a medusa stage isa. Hydrazoab. Cubazoac. Anthozoad. Scyphozoa
Cnidarian digestion isa. internal and extracellularb. internal and intracellularc. internal, extracellular and intracellulard. external and intracellulare. external, extracellular and intracellular
Cnidarian larvae are known asa. planulaeb. cercariaec. metacecariaed. polypse. medusae
Which of the following is characteristic of sponges?a. symmetryb. sexual reproductionc. tissuesd. organse. adult mobility
Which of the following is not a characteristic found in cnidarians?a. tissuesb. symmetryc. sexual reproductiond. asexual reproductione. organs
Which one of the following characteristics is found in cnidarians?a. organsb. respiratory systemc. blood vesselsd. specialized internal cavitye. nervous system
Water taken in through the pores in sponges exits through thea. mesogleab. spiculesc. osculumd. gastrovascular cavitye. coelenteron
The planulae of _______________ develop only into polypsa. Hydrozoab. Ctenophorac. Scyphozoad. Cnidariae. Anthozoa
Which of the following have a one-way digestive system?a. ctenophoransb. flukesc. tapewormsd. free living flatwormse. cnidarians
The sponges have all of the following characteristics except:a. highly specialized cellsb. simple tissuesc. a gel-like matrixd. cell recognitione. complex multicellularity
Which one of the following is not a member of the phylum Cnidaria?a. jellyfishb. comb jellyc. hydrad. corale. sea anemone
Cnidarians are:a. asymmetricalb. bilaterally symmetricalc. radially symmetricald. trisymmetricale. none of the above
A cnidocyte is a specialized cell used for:a. sensing lightb. digesting foodc. capturing foodd. sensing movemente. circulating water
Why would tapeworms need to be hermaphrodites, given that they can only live inside of the intestines of animals?