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| 1 | |
One of the four innovations in animal body design - segmentation - allowed for |
| | A) | development of efficient internal organ systems. |
| | B) | more flexible movement as individual segments can move independently of each other. |
| | C) | locating organs in different areas of the body. |
| | D) | embryonic cells to not have a fixed fate. |
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| 2 | |
Which of the following is the correct organization sequence from smallest to largest in animals? |
| | A) | cells, tissues, organs, organ systems, organism |
| | B) | organism, organ systems, organs, tissues, cells |
| | C) | tissues, organs, cells, organ systems, organism |
| | D) | organs, tissues, cells, organism, organ systems |
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| 3 | |
Which of the following is not a function of the epithelial tissue? |
| | A) | secrete materials |
| | B) | provide sensory surfaces |
| | C) | move the body |
| | D) | protect underlying tissue from damage and dehydration |
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| 4 | |
An example of connective tissue is |
| | A) | nerve cells in your fingers. |
| | B) | skin cells. |
| | C) | brain cells. |
| | D) | red blood cells. |
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| 5 | |
When a person has osteoporosis, the work of __________ falls behind the work of ______________. |
| | A) | osteoclasts, osteoblasts |
| | B) | osteoclasts, collagen |
| | C) | osteoblasts, osteoclasts |
| | D) | osteoblasts, collagen |
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| 6 | |
Nerve impulses jump between nerve cells through the use of |
| | A) | hormones. |
| | B) | neurotransmitters. |
| | C) | pheromones. |
| | D) | calcium ions. |
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| 7 | |
The muscle used for voluntary body motion is the |
| | A) | skeletal. |
| | B) | cardiac. |
| | C) | smooth. |
| | D) | squamous. |
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| 8 | |
The vertebral column is part of the |
| | A) | appendicular skeleton. |
| | B) | axial skeleton. |
| | C) | hydrostatic skeleton. |
| | D) | exoskeleton. |
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| 9 | |
Movement requires a pair of muscles because |
| | A) | a single muscle can only pull and not push. |
| | B) | a single muscle can only push and not pull. |
| | C) | both muscles are required to move a limb in any single direction. |
| | D) | No answer is correct |
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| 10 | |
The role of calcium in the process of muscle contraction is |
| | A) | to gather ATP for the myosin to use. |
| | B) | to cause the myosin head to shift position, contracting the myofibril. |
| | C) | to cause the myosin head to detach from the actin, causing the muscle to relax. |
| | D) | exposing myosin attachment sites on actin. |
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