Fish and Animal Anatomy Flashcards
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Questions and Answers

What is the definition of an endoskeleton?

  • The external skeleton
  • The internal skeleton (correct)
  • A type of connective tissue
  • A segment of bone

What is cartilage?

Strong connective tissue that supports the body and is softer and more flexible than bone.

What are vertebrae?

Segments of bone or some other hard substance that are arranged into a backbone.

Define ectotherm.

<p>An animal whose body temperature varies with the temperature of its surroundings.</p> Signup and view all the answers

What is an endotherm?

<p>An animal that generates its own body heat and controls its body temperature from within.</p> Signup and view all the answers

What are fins?

<p>Fanlike structures that help fish move, turn, stop, and balance.</p> Signup and view all the answers

What are scales?

<p>The small, thin, flat plates that help protect the bodies of fish and reptiles.</p> Signup and view all the answers

What is hibernation?

<p>A period of inactivity that some animals experience in winter that allows them to survive on stored body fat.</p> Signup and view all the answers

Define estivation.

<p>A period of reduced activity that some animals experience in the summer.</p> Signup and view all the answers

What is an amniotic egg?

<p>A shelled, water-retaining egg that enables reptiles, birds, and egg-laying mammals to complete their life cycles on dry land.</p> Signup and view all the answers

What are contour feathers?

<p>Large feathers that give shape to a bird's body and help with flying.</p> Signup and view all the answers

What are down feathers?

<p>A soft feather that covers the body of young birds and provides insulation to adult birds.</p> Signup and view all the answers

What does preening refer to in birds?

<p>The act of grooming and maintaining their feathers.</p> Signup and view all the answers

Define mammal.

<p>Any warm-blooded vertebrate having the skin more or less covered with hair.</p> Signup and view all the answers

What is a marsupial?

<p>Mammals of which the females have a pouch containing the teats where the young are fed and carried.</p> Signup and view all the answers

What is the placenta?

<p>The vascular structure in the uterus of most mammals providing oxygen and nutrients and transferring wastes from the developing fetus.</p> Signup and view all the answers

What are birds?

<p>Warm-blooded vertebrates with feathers and wings that lay eggs with protective shells.</p> Signup and view all the answers

Define fish.

<p>Any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills.</p> Signup and view all the answers

What is an amphibian?

<p>A cold-blooded vertebrate typically living on land but breeding in water.</p> Signup and view all the answers

Define reptile.

<p>An ectothermic vertebrate that lays eggs and has lungs and scaly skin.</p> Signup and view all the answers

Flashcards

Endoskeleton

An internal skeleton that provides structure and support for vertebrates.

Cartilage

A flexible connective tissue that is softer than bone, providing support.

Vertebrae

Bony segments that form the backbone, crucial for structural integrity.

Ectotherm

An animal that regulates its body temperature through its environment.

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Endotherm

An animal that generates its own body heat and maintains a constant internal temperature.

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Fins

Fanlike structures used for movement, turning, stopping, and balance in fish.

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Scales

Protective plates covering fish and reptiles providing defense.

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Hibernation

A winter survival strategy where animals become inactive, relying on stored body fat.

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Estivation

A summer survival strategy, reducing activity to cope with hot and dry conditions.

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Amniotic Egg

A shelled, water-retaining egg that allows for reproduction on land.

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Contour Feathers

Large feathers shaping a bird's body, aiding in flight.

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Down Feathers

Soft feathers providing insulation, vital for warmth.

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Preening

Bird grooming behavior maintaining feather condition for flight efficiency.

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Mammal

A warm-blooded vertebrate with hair and mammary glands to nurse young.

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Marsupial

Mammals with pouches (marsupium) to carry and feed young.

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Placenta

Organ in mammals that facilitates nutrient exchange and waste removal during pregnancy.

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Bird

Warm-blooded vertebrate with feathers, wings, and egg-laying capability.

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Fish

Cold-blooded aquatic vertebrates with scales and gills.

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Amphibian

Cold-blooded vertebrate with a life cycle partly in water and partly on land.

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Reptile

Ectothermic vertebrate typically laying eggs with scaly skin.

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Study Notes

Skeletons and Tissue

  • Endoskeleton: Internal skeleton found in vertebrates, providing structure and support.
  • Cartilage: Flexible connective tissue, softer than bone, aiding in body support.
  • Vertebrae: Bony segments forming the backbone, important for structural integrity.

Temperature Regulation

  • Ectotherm: Animals whose body temperature depends on external environmental temperatures.
  • Endotherm: Animals that internally generate their own heat and regulate body temperature.

Fish Anatomy

  • Fins: Essential fanlike structures for movement, turning, stopping, and balance in fish.
  • Scales: Protective, thin plates covering fish and reptiles, providing defense against environmental hazards.

Animal Behaviors

  • Hibernation: A winter survival strategy involving inactivity and reliance on stored body fat.
  • Estivation: A summer state of reduced activity to survive hot, dry conditions.

Reproductive Adaptations

  • Amniotic Egg: Shelled, water-retaining egg enabling reproduction of reptiles, birds, and some mammals on land.

Bird Characteristics

  • Contour Feathers: Large feathers providing shape and assisting in flight.
  • Down Feathers: Soft feathers for insulation, crucial for young birds and adult birds’ warmth.
  • Preening: A grooming behavior in birds maintaining feather condition for flight efficiency.

Mammalian Features

  • Mammal: Warm-blooded vertebrates characterized by hair covering and mammary glands for nursing.
  • Marsupial: Mammals with a pouch (marsupium) for carrying and feeding young.
  • Placenta: A nutrient and waste exchange structure in the uterus, essential for fetal development in most mammals.

Animal Groups Overview

  • Birds: Warm-blooded vertebrates distinguished by feathers, wings, and egg-laying capabilities, adapted to various habitats.
  • Fish: Cold-blooded aquatic vertebrates generally characterized by scales and gills for breathing.
  • Amphibians: Cold-blooded vertebrates, with a lifecycle partially aquatic and partially terrestrial.
  • Reptiles: Ectothermic vertebrates that lay eggs with scaly skin and possess lungs for breathing.

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Description

Explore the fascinating world of animal anatomy with our flashcards on fish, amphibians, reptiles, birds, and mammals. Learn key terms related to their skeletal structures and classifications, enhancing your understanding of these diverse species. Perfect for biology students and enthusiasts alike!

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