CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Textbook Question
Chapter 30, Problem 7TYK
When a dog is running fast, its body position is stabilized by
a. side-to-side undulation.
b. energy stored in tendons.
c. foot contact with the ground.
d. its momentum.
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Chapter 30 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 30 - Complete this concept map on animal movement.Ch. 30 - A humans internal organs are protected mainly by...Ch. 30 - Arm muscles and leg muscles are arranged in...Ch. 30 - Gravity would have the least effect on the...Ch. 30 - Prob. 5TYKCh. 30 - Prob. 6TYKCh. 30 - When a dog is running fast, its body position is...Ch. 30 - What is the role of calcium in muscle contraction?...Ch. 30 - Muscle A and muscle B have the same number of...Ch. 30 - Prob. 10TYK
Ch. 30 - Prob. 11TYKCh. 30 - Prob. 12TYKCh. 30 - Prob. 13TYKCh. 30 - Describe how you bend your arm, starting with...Ch. 30 - Prob. 15TYKCh. 30 - Drugs are often used to relax muscles during...Ch. 30 - An earthworms body consists of a number of...Ch. 30 - When a person dies, muscles become rigid and fixed...Ch. 30 - SCIENTIFIC THINKING Imagine you have a friend who...
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- Which of the following statements is true of the chameleon tongue but not of the human tongue? A. It is a muscular hydrostat. B. Force generation reflects the binding of myosin crossbridges to actin thin filaments. C. The organization of the actin and myosin filaments produces a regular pattern of bands, or striations. D. Gaps or holes in the Z-discs allow supercontraction (shortening beyond the normal limit). E. All of the above statements are true of both the chameleon tongue and the human tongue.arrow_forwardWhich of the following statements best describes the sliding filament mechanism of muscle contraction? a. Actin and myosin filaments do not shorten, but rather, slide past each other. b. Actin and myosin filaments shorten and slide past each other. c. As they slide past each other, actin filaments shorten, but myosin filaments do not shorten. d. As they slide past each other, myosin filaments shorten, but actin filaments do not shorten.arrow_forwardThe muscle system is responsible for a. producing red blood cells. b. providing a framework. c. moving the body. d. conducting impulses.arrow_forward
- Which of the following statements concerning the scaling of muscle properties with body size is true? A. Muscle mass scales isometrically with body mass. B. A small animal can lift a greater load relative to its body mass than a larger animal. C. The force generated by a muscle is proportional to its cross-sectional area. D. A large animal will be able to carry a greater mass than a smaller animal. E. All of the above are truearrow_forwardWhich of the following statements accurately describe(s) the action?a. Making a fist is flexing the fingers.b. Standing on tiptoes is dorsiflexion.c. Pitching a baseball is circumduction.d. Pointing with your arm straight in front of you is extending the arm.e. Squatting involves knee flexion.arrow_forwardOne of the primary reasons that one individual is faster in a 50-meter sprint than another is a. a greater number of muscle fibers of smaller diameter. b. more oxidative fibers in the lower limb muscles. c. an enhanced ability to deliver oxygen to the muscles. d. a greater percentage of fast-twitch fibers in the lower limb muscles.arrow_forward
- Why might multiple, small motor units be advantageous over a single large motor unit? A. They enable finer control over movements. B. Small motor units contract more rapidly than large motor units. C. Small motor units have greater capacity for strength improvement. D. The strength of contraction can be modulated more easily in small motor units. E. They enable a strong, flexing motion.arrow_forwardWhich of the following is a true statement regarding gliding movements? a.Gliding movements occur at the intercarpal and intertarsal joints. b.Gliding movements allow flexibility of the upper limbs. c.An example of a gliding movement is nodding one's head. d.Gliding movements are multiaxial.arrow_forwardWhich of the following sentences is NOT correct? A. White fibers make up fast-twitch muscle B. Muscle spindle is a type of receptor that detects muscle length C. Exocrine gland secretes its product directly into the bloodstream D. When an action potential is generated within a motor neuron, every muscle cell of the motor unit is stimulated to contractarrow_forward
- The ability of a muscle to generate tension immediately after stimulation is dependent on: a. myosin interaction with the M line b. overlap of myosin and actin c. actin attachments to the Z line d. none of the abovearrow_forwardThe power stroke of muscle contraction occurs as the myosin head pivots toward its tail and the thin filament slides along the length of the thick filament. A. true B. falsearrow_forwardIn an isometric contraction, the muscle develops tension but does not: a. Expend energy.b. Exhibit elasticity.c. Lengthen.d. Conduct electrical current.e. Widenarrow_forward
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