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Classification Unit Test
8 of 148 of 14 Items
Question
Your teacher describes an organism that digests its food externally before absorbing it. You also find out that this organism cannot move. Based on what you’ve learned, this organism is most likely a(n)(1 point)
Responses

protist.
protist.

animal.
animal.

bacterium.
bacterium.

fungus.
fungus.
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What is the lowest level of taxonomic classification (i.e., the narrowest)?(1 point)
Responses

order
order

genus
genus

class
class

species
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What is the name of a specific type of model that shows how animals diverge during evolution?(1 point)
Responses

taxonomy
taxonomy

diagram
diagram

cladogram
cladogram

hierarchy
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A grasshopper is an arthropod. Based on the grasshopper’s characteristics, which other animal likely belongs to this group?(1 point)
Responses

coral
coral

clam
clam

tapeworm
tapeworm

mosquito
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In one or two sentences, explain how cats and dogs, both mammals, could be classified as distinct animals. What characteristics set them apart from one another?(2 points)
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Snails and beetles have exoskeletons. Hypothesize the advantages and disadvantages of having an exoskeleton rather than a backbone. Explain your answer in one or two sentences.(2 points)
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Vertebrates include fish, amphibians, reptiles, birds, and mammals. Analyze the common characteristics of reptiles and explain how they differ from mammals. Explain your answer in one or two sentences.(2 points)
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fungus.
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species
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cladogram
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mosquito
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Cats and dogs can be classified as distinct animals based on their physical and behavioral differences. For example, cats have retractable claws and are generally solitary hunters, while dogs have non-retractable claws and are pack animals that have been domesticated by humans for thousands of years.
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One advantage of having an exoskeleton is that it provides protection and support for the organism’s internal organs. However, a major disadvantage is that the exoskeleton cannot grow with the organism, which can limit its growth and lifespan. In contrast, having a backbone provides greater mobility and a framework for muscle attachment, but also requires more energy to maintain and can limit flexibility.
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Reptiles are cold-blooded, have scaly skin, lay eggs, and breathe through lungs, while mammals are warm-blooded, have hair or fur, give birth to live young, and breathe through lungs or gills.