Coordination and Control in Animals
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Questions and Answers

What is the primary reason why an animal's tissues and organ systems must act in concert with one another?

  • To respond to stimuli
  • To regulate blood flow
  • To perform their specialized functions effectively (correct)
  • To maintain homeostasis

What is the main function of thyroid-stimulating hormone (TSH)?

  • To convey information through nerve impulses
  • To increase oxygen consumption and heat production in nearly every body tissue
  • To stimulate release of thyroid hormone (correct)
  • To coordinate gradual changes in growth and development

What is the main difference between the endocrine system and the nervous system?

  • The speed of signal transmission
  • The number of cells involved
  • The pathway used to transmit signals (correct)
  • The type of signaling molecules used

How do nerve impulses travel through the nervous system?

<p>As changes in voltage along axons (D)</p> Signup and view all the answers

What is the term for the signaling molecules released by the endocrine system?

<p>Hormones (B)</p> Signup and view all the answers

What is a key difference between the endocrine and nervous systems in terms of signal duration?

<p>The endocrine system has a longer signal duration (A)</p> Signup and view all the answers

What determines which cells respond to a particular hormone?

<p>The presence of receptors for that hormone (C)</p> Signup and view all the answers

What is an example of a function that the endocrine system is well adapted for?

<p>Coordinating gradual changes in growth and development (C)</p> Signup and view all the answers

What is a characteristic of the nervous system in terms of signal transmission?

<p>It involves very short-range chemical signals (A)</p> Signup and view all the answers

What is the advantage of the endocrine system's broadcasting of hormones throughout the body?

<p>It allows hormones to reach cells in any location (B)</p> Signup and view all the answers

What is a common goal of the endocrine and nervous systems?

<p>To maintain a stable internal environment (D)</p> Signup and view all the answers

What is an example of coordination of activity in an animal?

<p>The regulation of blood flow to bring adequate nutrients and gases to the leg muscles during hunting (A)</p> Signup and view all the answers

Which of the following best describes the role of the brain in the example of the wolf hunting?

<p>Activating the leg muscles in response to cues (D)</p> Signup and view all the answers

What is the primary mechanism by which hormones affect the body?

<p>By releasing signaling molecules into the bloodstream (C)</p> Signup and view all the answers

What determines the extent of a hormone's effect in the body?

<p>The number of cells with receptors for the hormone (B)</p> Signup and view all the answers

What is the key difference between the endocrine system and the nervous system in terms of signal transmission?

<p>The routes used to transmit signals (D)</p> Signup and view all the answers

Why is coordination between tissues and organ systems necessary for an animal's survival?

<p>To enable the body to perform specialized functions effectively (D)</p> Signup and view all the answers

What is the primary function of the two major systems for coordinating and controlling responses to stimuli?

<p>To enable the body to respond to stimuli in a coordinated manner (B)</p> Signup and view all the answers

How does the endocrine system convey information to target cells?

<p>Through the release of hormones into the bloodstream (A)</p> Signup and view all the answers

What is a key advantage of the nervous system's use of chemical signals?

<p>It allows for very short-range communication between neurons (D)</p> Signup and view all the answers

What is the primary function of the endocrine system in terms of the body's overall physiology?

<p>To regulate growth and development (D)</p> Signup and view all the answers

How do the endocrine and nervous systems differ in terms of signal type?

<p>The endocrine system uses hormones, while the nervous system uses nerve impulses (B)</p> Signup and view all the answers

What is the duration of the effects of hormones in the body?

<p>Several minutes to several hours (A)</p> Signup and view all the answers

Why is the nervous system well suited for directing immediate and rapid responses to the environment?

<p>Because it uses electrical signals that can travel at a very fast speed (A)</p> Signup and view all the answers

What is the primary function of the endocrine system in terms of the body's overall physiology?

<p>Coordinating gradual changes that affect the entire body (A)</p> Signup and view all the answers

How do nerve impulses travel through the nervous system?

<p>Along axons as changes in voltage (C)</p> Signup and view all the answers

What is a key advantage of the nervous system's transmission of information?

<p>It is extremely fast (B)</p> Signup and view all the answers

What is the primary function of the nervous system in terms of the body's overall physiology?

<p>Directing immediate and rapid responses to the environment (D)</p> Signup and view all the answers

What is the primary purpose of the coordination and control systems in animals?

<p>to facilitate communication between organ systems (C)</p> Signup and view all the answers

How do hormones act on target cells?

<p>Directly on nearly every body tissue (D)</p> Signup and view all the answers

What is unique about the signaling pathways used by the endocrine and nervous systems?

<p>The type of pathway used is the same regardless of the location of the target cells (D)</p> Signup and view all the answers

How do hormones released by the endocrine system affect cells?

<p>They only affect cells that have receptors for that particular hormone (A)</p> Signup and view all the answers

What is a common goal of the endocrine and nervous systems?

<p>To maintain a stable internal environment (C)</p> Signup and view all the answers

What is a key difference between the endocrine and nervous systems?

<p>The type of signals transmitted (A)</p> Signup and view all the answers

What is an example of coordination of activity in an animal?

<p>The regulation of blood flow during hunting (A)</p> Signup and view all the answers

What determines which cells respond to a particular hormone?

<p>The presence of specific receptors on the surface of cells (C)</p> Signup and view all the answers

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