Which of the following Phyla shows radial symmetry?a) Molluscab) Cnidariac) Platyhelminthesd) Chordata4. 4. Arthropods are animals witha) a segmented body, hard exoskeleton and jointed appendages.b) a limbless body composed of a series of fused ringsc) soft non-‐segmented bodies, sometimes protected by a hard shelld) a dorsoventrally-‐flattened body with no coelom.5. 5. Which of the following can be classed as an amniote?a) Ray-‐finned fishb) Cartilaginous fishc) Amphibiand) Reptile6. As N (population size) approaches K (carrying capacity) for a certain population, whichof the following is predicted by the logistic equation?a) The growth rate will not change.b) The growth rate will approach zero.c) The population will increase exponentially.d) The carrying capacity of the environment will increase.
Question
Which of the following Phyla shows radial symmetry?a) Molluscab) Cnidariac) Platyhelminthesd) Chordata4. 4. Arthropods are animals witha) a segmented body, hard exoskeleton and jointed appendages.b) a limbless body composed of a series of fused ringsc) soft non-‐segmented bodies, sometimes protected by a hard shelld) a dorsoventrally-‐flattened body with no coelom.5. 5. Which of the following can be classed as an amniote?a) Ray-‐finned fishb) Cartilaginous fishc) Amphibiand) Reptile6. As N (population size) approaches K (carrying capacity) for a certain population, whichof the following is predicted by the logistic equation?a) The growth rate will not change.b) The growth rate will approach zero.c) The population will increase exponentially.d) The carrying capacity of the environment will increase.
Solution 1
Sure, here are the answers to your questions:
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The phylum that shows radial symmetry is b) Cnidaria. Radial symmetry is a characteristic of organisms that can be divided into roughly equal halves by any plane that passes through the central axis, like a pie. Cnidarians, which include jellyfish, sea anemones, and corals, exhibit this type of symmetry.
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Arthropods are animals with a) a segmented body, hard exoskeleton and jointed appendages. This group includes insects, spiders, and crustaceans.
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An amniote can be classed as d) Reptile. Amniotes are a group of tetrapods (four-legged animals) that have a terrestrially adapted egg. They include reptiles, birds, and mammals.
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As N (population size
Solution 2
Sure, here are the answers to your questions:
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The phylum that shows radial symmetry is b) Cnidaria. Radial symmetry is a characteristic of simple animals, it means they can be divided into similar halves by more than two planes passing through the center.
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Arthropods are animals with a) a segmented body, hard exoskeleton and jointed appendages. This is the defining characteristic of the phylum Arthropoda, which includes insects, spiders, and crustaceans.
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An amniote can be classed as d) Reptile. Amniotes are a group of animals that have a specialized egg, which includes reptiles, birds, and mammals. Ray-finned fish, cartilaginous fish, and amphibians do not have this type of egg.
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As N (population size) approaches K (carrying capacity) for a certain population, the logistic equation predicts that b) The growth rate will approach zero. This is because as a population reaches its carrying capacity, resources become scarce, slowing the growth rate.
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