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

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

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

How does the nervous system help maintain homeostasis?

<p>It controls the body's breathing patterns (A)</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 (C)</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 (C)</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 (D)</p> Signup and view all the answers

What is the primary function of homeostasis in the body?

<p>To maintain optimal levels of substances (D)</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. (D)</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 (C)</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 (A)</p> Signup and view all the answers

Which animals possess true flight according to the text?

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

What distinguishes an exoskeleton from an endoskeleton?

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

Which statement accurately describes animal locomotion?

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

What is an example of the body maintaining homeostasis?

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

How does the body respond to high blood glucose levels?

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

Which system helps to fight infections to maintain homeostasis?

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

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

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

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

<p>Speeds up (C)</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 (D)</p> Signup and view all the answers

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