Animal Physiology

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Questions and Answers

What is physiology the study of?

  • Environmental adaptation
  • Cell structure
  • Genetic inheritance
  • Biological function (correct)

What is the emphasis of physiology?

  • Anatomy
  • Mechanisms (correct)
  • Chemical composition
  • Evolutionary history

Where does exchange of substances occur in multicellular organisms?

  • Intracellularly within organelles
  • Within the cytoplasm
  • In the extracellular fluid
  • Across the cells’ plasma membranes (correct)

How do single-celled protists exchange materials with their surroundings?

<p>Through the plasma membrane (B)</p> Signup and view all the answers

What facilitates the diffusion of materials in sac-bodied organisms like jellyfish?

<p>Body walls that are only two cells thick (B)</p> Signup and view all the answers

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Study Notes

Physiology

  • Physiology is the study of the functions and processes that occur within living organisms.

Exchange of Substances

  • In multicellular organisms, the exchange of substances occurs through specific cells, tissues, or organs that are adapted for this purpose.

Single-Celled Protists

  • Single-celled protists exchange materials with their surroundings directly across their cell membrane.

Sac-Bodied Organisms

  • In sac-bodied organisms like jellyfish, the diffusion of materials is facilitated by the large surface area of their gastrovascular cavity.

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