Multiple choice: 4. Which of the following is not a general characteristic of ar
ID: 98330 • Letter: M
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Multiple choice: 4. Which of the following is not a general characteristic of arthropods? a) Arthropods have an open circulatory system b) Arthropods have well-developed sensory organs c) Arthropod bodies are completely covered by cuticle d) Terrestrial arthropods have internal structures specialized for gas exchange e) Most arthropod sensory organs are concentrated at the posterior end 5. Which of the following pairings of phylum and description is incorrect? a) Echinodermata-bilateral symmetry as a larva, coelomate Nematoda-roundworms, pseudocoelomate Porifera-gastrovascular cavity, coelomate b) ribs b) c) Platyhelminthes-flatworms, gastrovascular cavity, acoelomate Weld byribscalesteeth 6. Vertebrate jaws evolved from gill supports )ribsc) scalesd) teeth 7. Among living organism members of the class aves only have a) a four chambered heart b) amniote eggs feathers d) a cloaca 8. What common characteristic do annelids and cephalopods have that other invertebrates do not? 9. What are amphibian's limitations to living a terrestrial lifestyle and what adaptations did reptiles make to be able to occupy a greater variety of habitats than amphibians?Explanation / Answer
4-e) most Arthropods sensory organs are concentrated at posterior end is not the general characteristic of Arthropods.
Because sensory organs in Arthropods are usually located at anterior end.
All other options are true as general characteristics of Arthropods.
5-d) porifera- Gastrovascular cavity coelomate.
They have no coelome. And they have no cavities in their body. Oxygen and nutrients comes through diffusion from the body layer
All other options are true according to their phylum characteristics.
6-a) gills support is the correct answer.
Jaws are thought to derive from the pharyngeal arches that supports the gills in fish.
All other options are not the correct option from which jaws have been evolved.
7-c) feathers is the correct answer.
A is wrong because aves have three chambered heart.
B is wrong because aves don't have Amniote eggs.
D is wrong because aves is not the only member that has a cloaca. Reptiles, amphibian also have the cloaca.
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