Gen.Biology 2 Q3: Sensory and Motor Mechanisms in Plants and Animals
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Questions and Answers

What term is used to describe animals that spend all or nearly all their entire adult life in one place?

  • Motile
  • Sessile (correct)
  • Active
  • Passive

    • Which type of locomotion does not require muscular effort from the animal?

  • Passive locomotion (correct)
  • Active locomotion
  • Nervous system control
  • Jet propulsion

    • Which of the following is a disadvantage of passive locomotion?

  • The animal must have a means of controlling their movement
  • The animal must have a means of providing propulsion
  • The animal is at the whim of wind and wave (correct)
  • The animal must use muscle tissue attached to a structure

    • What is the primary means by which most animals generate the force required for active locomotion?

    <p>Use of muscle tissue attached to a structure</p> Signup and view all the answers

    Which of the following is an example of an animal that exhibits passive locomotion?

    <p>Jellyfish</p> Signup and view all the answers

    What is the primary function of the nervous system in animal locomotion?

    <p>To control the amount, type, and location of muscle contractions</p> Signup and view all the answers

    What is the main purpose of the body's homeostatic mechanisms?

    <p>To maintain optimal levels of substances in the body</p> Signup and view all the answers

    How does the nervous system help maintain homeostasis?

    <p>It controls the body's breathing patterns</p> Signup and view all the answers

    What is the role of the thyroid gland in maintaining homeostasis?

    <p>It releases hormones to regulate calcium levels</p> Signup and view all the answers

    What is the primary way the body eliminates substances that can be dangerous to homeostasis?

    <p>Through the urinary and digestive systems</p> Signup and view all the answers

    What is the role of the parathyroid gland in maintaining homeostasis?

    <p>It releases hormones to regulate calcium levels</p> Signup and view all the answers

    What is the primary function of homeostasis in the body?

    <p>To maintain optimal levels of substances</p> Signup and view all the answers

    What is the main difference between soaring and true flight?

    <p>Soaring involves gaining altitude by using columns of rising air, whereas true flight involves flapping wings to propel forward and upward.</p> Signup and view all the answers

    Which group of animals may have been capable of true flight or only soaring and gliding?

    <p>Winged reptiles known as pterosaurs</p> Signup and view all the answers

    Which type of skeleton is common in aquatic and burrowing animals with no solid 'bone' structure?

    <p>Hydrostatic skeleton</p> Signup and view all the answers

    Which animals possess true flight according to the text?

    <p>Insects, birds, and mammals</p> Signup and view all the answers

    What distinguishes an exoskeleton from an endoskeleton?

    <p>Exoskeletons provide external protection, while endoskeletons provide internal support.</p> Signup and view all the answers

    Why are birds better gliders than gliding animals according to the text?

    <p>Because birds can take advantage of columns of rising air to gain altitude.</p> Signup and view all the answers

    What is the main difference between movement and locomotion?

    <p>All animals move, but not all animals locomote.</p> Signup and view all the answers

    How do plants exhibit locomotion according to the text?

    <p>By growing towards light and moving materials on the plant body</p> Signup and view all the answers

    In terms of locomotion, what is unique about some animals mentioned in the text?

    <p>They stay in one place for their entire adult life.</p> Signup and view all the answers

    Which statement accurately describes animal locomotion?

    <p>Some animals slither, crawl, flap, glide, and swim.</p> Signup and view all the answers

    What is one characteristic of animal locomotion mentioned in the text?

    <p>Some animals spend almost their entire life in the air.</p> Signup and view all the answers

    What sets apart animals that stay in one place for their entire adult life?

    <p>They remain stationary throughout their adult life cycle.</p> Signup and view all the answers

    What is an example of the body maintaining homeostasis?

    <p>Sweating in the summer</p> Signup and view all the answers

    How does the body respond to high blood glucose levels?

    <p>Releasing insulin from the pancreas</p> Signup and view all the answers

    Which system helps to fight infections to maintain homeostasis?

    <p>Lymphatic system</p> Signup and view all the answers

    What happens if calcium levels in the blood are not maintained?

    <p>Excessive bloating of cells</p> Signup and view all the answers

    How does the heart respond to low blood pressure as part of homeostasis?

    <p>Speeds up</p> Signup and view all the answers

    Why does the liver convert glycogen to glucose when blood sugar levels drop?

    <p>To raise blood glucose levels</p> Signup and view all the answers

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