Questions and Answers
In which class of animals is the biologist likely to place the young, four-legged animal?
reptile
What characteristic is an example of endoskeletons?
bones in mammals
What characteristic is an example of endoskeletons?
calcium-rich plates in echinoderms
Which three classes of animals practice internal fertilization?
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According to the phylogenetic tree, which two phyla are most closely related?
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What change must have occurred during the evolution from invertebrate chordates to vertebrate chordates?
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How do whales differ from fish?
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Which two characteristics are present in both a squid and a dolphin, but not present in a jellyfish?
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Why are mollusks and arthropods commonly used as model organisms?
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What statement provides the strongest evidence to support the claim that birds evolved from dinosaurs?
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What is a defining feature of mammals that is not present in most other vertebrates?
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Into which phylum should the researcher classify the asymmetrical ocean organism?
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Although amphibians spend their early lives in water, they undergo _______ to develop ____, so that they can survive on land.
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What type of symmetry does a starfish have?
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What type of symmetry does a human have?
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What type of symmetry does a butterfly have?
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What type of symmetry does a sea urchin have?
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Shrimp have which type of body cavity?
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Fish have which type of body cavity?
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Roundworms have which type of body cavity?
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Identify the cavity that develops entirely from the mesoderm.
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Match the parts of the fish that allow it to breathe underwater.
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Match the parts of the fish that create balance and help with escape and predation.
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Match the parts of the fish that protect the fish from the external environment.
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All annelids and arthropods have a _____ body plan.
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Unlike annelids, arthropods also have an ____
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The circulatory system of annelids is
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The circulatory system of arthropods is
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Study Notes
Classification of Animals
- Young four-legged animal with lungs and scales is classified as a reptile.
- Internal fertilization is a characteristic of mammals, birds, and reptiles.
- Annelida and arthropoda are closely related phyla in the phylogenetic tree.
- Whales possess blowholes for breathing, distinguishing them from fish.
Anatomy and Features
- Endoskeleton examples include bones in mammals and calcium-rich plates in echinoderms.
- Squid and dolphins share bilateral symmetry and a coelom, unlike jellyfish, which are radially symmetrical.
- Mollusks and arthropods are model organisms due to cephalization, unlike sponges and jellyfish.
- Fossils like Archaeopteryx provide evidence that birds evolved from dinosaurs through modified scales producing feathers.
Reproductive Adaptations
- Mammals uniquely produce milk for their offspring, unlike most other vertebrates.
- Amphibians undergo metamorphosis to develop lungs for terrestrial life.
Body Symmetry
- Starfish and sea urchins display radial symmetry.
- Humans and butterflies exhibit bilateral symmetry.
Body Cavities
- Shrimp and fish possess a coelom, while roundworms have a pseudocoelom.
- Coelom develops entirely from mesoderm tissue.
Fish Anatomy and Functions
- Gills enable fish to breathe underwater.
- Fins assist fish with balance, escape, and predation.
- Scales offer protection from environmental hazards.
Habitat and Characteristics
- All annelids and arthropods share a segmented body plan.
- Arthropods are distinguished by their exoskeleton, which is absent in annelids.
- Annelid circulatory systems are closed with blood vessels, while arthropods exhibit an open circulatory system with hemocyanin for oxygen transport.
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Description
Test your knowledge of animal classifications with this mastery review of key concepts in biology. The quiz includes questions about various animal classes and characteristics, focusing on reptiles and mammals. Perfect for students looking to solidify their understanding of animal anatomy and classification.