Animals in general
Which of the following is NOT a feature common to most animals?
1. development into a fixed body plan
2. heterotrophic nutrient sourcing
3. asexual reproduction only
4. specialized tissues
3. asexual reproduction only
Match the type of tissue to its description:
1) epithelial, 2) muscle, 3) nervous, 4) connective
a. contains neurons which transmit impulses
b. performs many functions including transport and structural support, includes blood and bones
c. covers the outside of the body and the inside and outside of the surfaces of organs within the body
d) contracts to cause body movements.
1) epithelial: c. covers the outside of the body and the inside and outside of the surfaces of organs within the body
2) muscle: d) contracts to cause body movements.
3) nervous: a. contains neurons which transmit impulses
4) connective: b. performs many functions including transport and structural support, includes blood and bones
The large central opening in the poriferan (sponge) body is called the _____.
1. ostia
2. gemmule
3. spicule
4. osculum
4. osculum
Cnidocytes (stinging cells) are found in which phylum?
1. Cnidaria
2. Nematoda
3. Nemertea
4. Porifera
1. Cnidaria
Which of the following does not occur? (refer to the cladogram found in your lecture notes to help with this question).
1. protostomic coelomate
2. diploblastic eucoelomate
3. radially symmetrical diploblast
4. bilaterally symmetrical deuterostome
2. diploblastic eucoelomate
The germ layers that develop in the blastula of a triploblast are the:
1. ectoderm, mesoderm, and endoderm
2. ectoderm, endoderm, and mesoglia
3. ectoderm and endoderm only
4. mesoderm and mesoglea only
1. ectoderm, mesoderm, and endoderm
A cell type unique to sponges in the animal kingdom, is similar to a type of protist, with a flagellum surrounded by a collar used to maintain water flow through the sponge, and capture and digest food particles, is called a:
1. choanoflagellate
2. pinacocyte
3. choanocyte
4. archeocyte
3. choanocyte
Anthozoans exhibit which form throughout the majority of their life cycle?
1. sponge
2. medusa
3. bilateralism
4. polyp
5. dimorphism
4. polyp
A type of symmetry in which there is only one plane of symmetry that creates two mirror-image sides is: _________________________
1. assymetry
2. biradial symmetry
3. radial symmetry
4. bilateral symmetry
4. bilateral symmetry
Having a coelom is beneficial for all of the following reasons EXCEPT:
1. it allows for the development of more complex organs and organ systems
2. it allows for streamlining of the organism
3. it allows for the organs to radiate around a central axis
4. it protects the internal organs
3. it allows for the organs to radiate around a central axis
TRUE OR FALSE? Sponges do not have a circulatory, respiratory, or digestive system since gases, wastes, and nutrients are exchanged through diffusion and filtration cells.
TRUE
Cnidarians have all of the features listed below EXCEPT:
1. radial symmetry
2. stinging cells
3. three germ layers
4. nerve net
5. a gastrovascular cavity with one opening
3. three germ layers
All of the following are trends towards more complex organisms in the animal kingdom on the evolutionary scale EXCEPT:
1. from asymmetry to radial symmetry to bilateral symmetry
2. from multicellularity to organized tissues
3. from true body cavities to no body cavities
4. from 2 to 3 embryonic germ layers
3. from true body cavities to no body cavities
The term used to describe a type of animal without a body cavity is___________________:
1. coelomate
2. acoelomate
3. pseudocoelomate
4. eucoelomate
2. acoelomate
All of the following are true about Porifera (Sponges) EXCEPT:
1. they have amazing regeneration abilities
2. they help to improve water quality by filtering water from their surroundings
3. they are important to the nutrient cycles of coral reef ecosystems
4. they provide habitat for a variety of microorganisms and macroorganisms.
5. all of the choices are true of Porifera
5. all of the choices are true of Porifera
The cnidarian life cycle includes a free swimming larva called the:
1. medusa
2. mesoglea
3. planula
4. planaria
5. polyp
3. planula