Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 38, Problem 8RQ
Which of the following is not a true statement comparing exoskeletons and endoskeletons?
- Endoskeletons can support larger organisms
- Only endoskeletons can grow as an organism grows
- Exoskeletons provide greater protection of the internal organs
- Exoskeletons provide less mechanical leverage.
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Which of the following is not a true statement comparing exoskeletons and endoskeletons? a. Endoskeletons can support larger organisms. b. Only endoskeletons can grow as an organism grows. c. Exoskeletons provide greater protection of the internal organs. d. Exoskeletons provide less mechanical leverage.
Most land animals with exoskeletons are smaller than the volume of a mouse, and most vertebrates are larger than a mouse (marine invertebrates can be somewhat bigger). What keeps an insect with an exoskeleton from being as big as a horse?
why do you think hydrostatic skeleton is eventually lost in animals with exoskeleton and endoskeleton? give 2 examples and scientific explanation
please do not just copy from google and this site, i need other answers
Chapter 38 Solutions
Biology 2e
Ch. 38 - Figure 38.19 Which of the following statements...Ch. 38 - Figure 38.37 Which of the following statements...Ch. 38 - Figure 38.38 The deadly nerve gas Sarin...Ch. 38 - The forearm consists of the radius and ulna radius...Ch. 38 - The pectoral girdle consists of the: clavicle and...Ch. 38 - All of the following are groups of vertebrae...Ch. 38 - Which of these is a facial bone? frontal occipital...Ch. 38 - Which of the following is not a true statement...Ch. 38 - The Haversian canal: is arranged as rods or plates...Ch. 38 - The epiphyseal plate: is arranged as rods or...
Ch. 38 - The cells responsible for bone resorption are...Ch. 38 - Compact bone is composed of trabeculae compacted...Ch. 38 - Osteoporosis is a condition where bones become...Ch. 38 - While assembling a skeleton of a new species, a...Ch. 38 - Synchondroses and symphyses are synovial joints...Ch. 38 - The movement of bone away from the midline of the...Ch. 38 - Which of the following is not a characteristic of...Ch. 38 - The elbow is an example of which type of joint?...Ch. 38 - A high ankle sprain iis an injury caused by over...Ch. 38 - In relaxed muscle, the myosin-binding site on...Ch. 38 - The cell membrane of a muscle fiber is called a...Ch. 38 - The muscle relaxes if no new nerve signal arrives....Ch. 38 - The ability of a muscle to generate tension...Ch. 38 - Botulinum toxin causes flaccid paralysis of the...Ch. 38 - What are the major differences between the male...Ch. 38 - What are the major differences between the pelvic...Ch. 38 - Both hydrostatic and exoskeletons can protect...Ch. 38 - Scoliosis is a medical condition where the spine...Ch. 38 - What are the major differences between spongy bone...Ch. 38 - What are the roles of osteoblasts, osteocytes, and...Ch. 38 - Thalidomide was a morning sickness drug given to...Ch. 38 - What movements occur at the hip joint and knees as...Ch. 38 - What movements) occur(s) at the scapulae when you...Ch. 38 - Describe the joints and motions involved in taking...Ch. 38 - How would muscle contractions be affected if ATP...Ch. 38 - What factors contribute to the amount of tension...Ch. 38 - What effect will low blood calcium have on...Ch. 38 - Skeletal muscles can only produce a mechanical...
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- Bones are __________. a. mineral reservoirs b. skeletal muscle's partners c. sites where blood cells form d. all of the abovearrow_forward1. Most land animals with exoskeletons are smaller than the volume of a mouse, and most vertebrates are larger than a mouse (marine invertebrates can be somewhat bigger). What keeps an insect with an exoskeleton from being as big as a horse. 2. Bone gains its rigidity from brick‑hard deposits amidst living cells. Yet we cannot build a large stone skyscraper from a small stone house without breaking the house apart. Yet our bones grow from small hard bones to large hard bones without ever breaking apart into soft vulnerable tissue. How is that accomplished? 3. Why will an increase in the strength of a stimulus cause an increase in the force of contraction in a whole muscle but not in a single muscle fiber?arrow_forwardWhat is the major disadvantage of an exoskeleton? A) It does not provide effective support for muscles. B) It does not protect the internal organs. C) It hardens only after an extended exposure to air. D) It must be periodically shed for growth to occur.arrow_forward
- The following is NOT a role of muscle tissue: support weight of visceral organs push on bones to initiate movement help maintain body temperature regulate the movement of materials through body openings Which of the following does NOT accurately describe tendons? "Continuous with the epimysium, perimysium, and endomysium" Larger in diameter than muscles. Attach a muscles to bones Cords of fibrous connective tissuearrow_forwardAlthough the most diverse and numerous animal groups on Earth have exoskeletons, this type of skeleton has some disadvantages when compared to endoskeletons. Describe any two potential disadvantages of exoskeletons.arrow_forwardWhat is a unique characteristic of an endoskeleton as compared to an exoskeleton? a). The endoskeleton is capable of growth. b). The endoskeleton permits movement. c). The endoskeleton is molted more frequently.d). The endoskeleton provides support. e). Two of the choices are correct.arrow_forward
- Which of the following are correct Dynein head elongates like a lever arm. ATP hydrolysis detaches myosin from actin Myosin slides over both thick and thin actin filaments ATP hydrolysis drives change in conformation of the myosin head.arrow_forwardA scientist extracts and measures the calcium content of one of your muscle fibers while you are asleep, when all of your muscles are relaxed. Where is the scientist likely to find calcium? In the T-tubules In the sarcoplasmic reticulum Bound to tropomyosin Bound to troponinarrow_forwardMuscles , joints, lever, plane and connective tissues that involved in lift a heavy box from floor to chestarrow_forward
- Which of the following statements about movement and locomotion isfalse?a. Terrestrial animals and flying animals expend energy to provide lift.b. Swimming animals expend energy to provide thrust but not lift.c. Flexors and extensors are examples of muscles called agonists.d. Flexors cause bending at a joint.e. Extensors cause straightening of a limb.arrow_forwardwhy do you think hydrostatic skeleton is eventually lost in animals with exoskeleton and endoskeleton? give 2 examples with scientific explanationarrow_forwardWhich of the following are aspects of the structure of skeletal muscle? Select all that apply. The muscle fibers are parallel to one another and have a striated appearance. They have more mitochondria than other types of muscle cells. Each fiber contains many units of contraction and protein filaments. Cells are branched or unbranched with single nuclei. It consists of cylindrical cells called muscle fibers that have multiple nuclei.arrow_forward
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