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10,300 | NDQ_007500 | introduction to the human body | The type of tissue that secretes hormones and absorbs nutrients is | null | null | Multiple Choice | a. muscle tissue., b. nerve tissue., c. epithelial tissue., d. connective tissue. | c |
10,301 | NDQ_007501 | introduction to the human body | Types of muscle tissue include | null | null | Multiple Choice | a. skeletal muscle., b. cardiac muscle., c. smooth muscle., d. all of the above | d |
10,302 | NDQ_007502 | introduction to the human body | Nervous tissue makes up most of the | null | null | Multiple Choice | a. lungs., b. kidneys., c. brain., d. stomach. | c |
10,303 | NDQ_007503 | introduction to the human body | How does the hormone insulin help maintain homeostasis in the human body? | null | null | Multiple Choice | a. It helps cells absorb sugar from the blood after you eat and digest food., b. It stimulates the production of sweat on a hot day to cool the body., c. It controls the contractions of cardiac muscles when you work out., d. It keeps the level of carbon dioxide in the blood within a narrow range. | a |
10,304 | NDQ_007504 | introduction to the human body | What is the basic function of the circulatory system? | null | null | Multiple Choice | a. transporting substances, b. taking in oxygen, c. controlling sensations, d. allowing movement | a |
10,305 | NDQ_007505 | introduction to the human body | Type(s) of tissue found in the human heart and blood vessels include | null | null | Multiple Choice | a. nervous tissue., b. epithelial tissue., c. connective tissue., d. all of the above | d |
10,306 | NDQ_007506 | the integumentary system | The integumentary system includes the | null | null | Multiple Choice | a. skin., b. nails., c. hair., d. all of the above | d |
10,307 | NDQ_007509 | the integumentary system | Structures in the epidermis include | null | null | Multiple Choice | a. sebaceous glands., b. hair follicles., c. melanocytes., d. all of the above | c |
10,308 | NDQ_007510 | the integumentary system | How does melanin protect the dermis from ultraviolet light? | null | null | Multiple Choice | a. It reflects ultraviolet light., b. It absorbs ultraviolet light., c. It changes ultraviolet light to visible light., d. It changes ultraviolet light to vitamin D. | b |
10,309 | NDQ_007513 | the integumentary system | The dermis consists mainly of | null | null | Multiple Choice | a. epithelial tissue., b. muscle tissue., c. nervous tissue., d. connective tissue. | d |
10,310 | NDQ_007515 | the integumentary system | Which structures are found in the lower layer of skin? | null | null | Multiple Choice | a. nerve endings, b. blood vessels, c. sweat glands, d. all of the above | d |
10,311 | NDQ_007520 | the integumentary system | The human skin is about 2 centimeters thick. | null | null | Multiple Choice | a. true, b. false | b |
10,312 | NDQ_007523 | the integumentary system | All the cells on the surface of the epidermis are dead. | null | null | Multiple Choice | a. true, b. false | a |
10,313 | NDQ_007525 | the integumentary system | People with light skin have fewer melanocytes per square inch than people with dark skin. | null | null | Multiple Choice | a. true, b. false | b |
10,314 | NDQ_007526 | the integumentary system | The production of melanin in the skin is stimulated by exposure to ultraviolet light. | null | null | Multiple Choice | a. true, b. false | a |
10,315 | NDQ_007527 | the integumentary system | The function of sebum is to waterproof the hair and skin. | null | null | Multiple Choice | a. true, b. false | a |
10,316 | NDQ_007528 | the integumentary system | The skin helps maintain homeostasis by regulating body temperature. | null | null | Multiple Choice | a. true, b. false | a |
10,317 | NDQ_007529 | the integumentary system | Sweat contains only water and salt. | null | null | Multiple Choice | a. true, b. false | b |
10,318 | NDQ_007530 | the integumentary system | _____The main cause of acne is eating greasy foods. | null | null | Multiple Choice | a. true, b. false | b |
10,319 | NDQ_007531 | the integumentary system | When blood vessels in the skin dilate, more heat reaches the body surface. | null | null | Multiple Choice | a. true, b. false | a |
10,320 | NDQ_007532 | the integumentary system | Skin damaged by ultraviolet light is at greater risk of developing cancer. | null | null | Multiple Choice | a. true, b. false | a |
10,321 | NDQ_007533 | the integumentary system | Hair grows longer because it is made up of living cells. | null | null | Multiple Choice | a. true, b. false | b |
10,322 | NDQ_007534 | the integumentary system | Sweat reaches the surface of the skin by traveling through hair follicles. | null | null | Multiple Choice | a. true, b. false | b |
10,323 | NDQ_007535 | the integumentary system | __outer layer of the skin | null | null | Multiple Choice | a. a.melanocyte, b. b.follicle, c. c.sebum, d. d.dermis, e. e.epidermis, f. f.keratin, g. g.skin | e |
10,324 | NDQ_007536 | the integumentary system | __tough protein that fills hair cells | null | null | Multiple Choice | a. a.melanocyte, b. b.follicle, c. c.sebum, d. d.dermis, e. e.epidermis, f. f.keratin, g. g.skin | f |
10,325 | NDQ_007537 | the integumentary system | __skin structure where a hair originates | null | null | Multiple Choice | a. a.melanocyte, b. b.follicle, c. c.sebum, d. d.dermis, e. e.epidermis, f. f.keratin, g. g.skin | b |
10,326 | NDQ_007538 | the integumentary system | __major organ of the integumentary system | null | null | Multiple Choice | a. a.melanocyte, b. b.follicle, c. c.sebum, d. d.dermis, e. e.epidermis, f. f.keratin, g. g.skin | g |
10,327 | NDQ_007539 | the integumentary system | __oily substance secreted by glands in the skin | null | null | Multiple Choice | a. a.melanocyte, b. b.follicle, c. c.sebum, d. d.dermis, e. e.epidermis, f. f.keratin, g. g.skin | c |
10,328 | NDQ_007540 | the integumentary system | __inner layer of the skin | null | null | Multiple Choice | a. a.melanocyte, b. b.follicle, c. c.sebum, d. d.dermis, e. e.epidermis, f. f.keratin, g. g.skin | d |
10,329 | NDQ_007541 | the integumentary system | __type of cell that produces a brown pigment in skin | null | null | Multiple Choice | a. a.melanocyte, b. b.follicle, c. c.sebum, d. d.dermis, e. e.epidermis, f. f.keratin, g. g.skin | a |
10,330 | NDQ_007542 | the integumentary system | Functions of the integumentary system include | null | null | Multiple Choice | a. maintaining a stable body temperature., b. preventing the body from drying out., c. keeping bacteria out of the body., d. all of the above | d |
10,331 | NDQ_007543 | the integumentary system | The outer layer of the skin contains | null | null | Multiple Choice | a. blood vessels., b. nerve endings., c. sweat glands., d. melanocytes. | d |
10,332 | NDQ_007544 | the integumentary system | The epidermis consists almost entirely of | null | null | Multiple Choice | a. epithelial tissue., b. connective tissue., c. muscle tissue., d. nervous tissue. | a |
10,333 | NDQ_007545 | the integumentary system | The dermis is attached to the epidermis by | null | null | Multiple Choice | a. collagen fibers., b. muscle fibers., c. keratin fibers., d. nerve fibers. | a |
10,334 | NDQ_007546 | the integumentary system | What is the function of sebum? | null | null | Multiple Choice | a. keeping the body cool, b. absorbing ultraviolet light, c. waterproofing the hair and skin, d. none of the above | c |
10,335 | NDQ_007547 | the integumentary system | The major cause of acne is | null | null | Multiple Choice | a. exposure to sunlight., b. infection by bacteria., c. overproduction of sweat., d. lack of sleep. | b |
10,336 | NDQ_007548 | the integumentary system | The dermis contains all of the following except | null | null | Multiple Choice | a. sebaceous glands., b. hair follicles., c. melanin-producing cells., d. sweat glands. | c |
10,337 | NDQ_007549 | the skeletal system | Components of the skeletal system include | null | null | Multiple Choice | a. bones., b. cartilage., c. ligaments., d. all of the above | d |
10,338 | NDQ_007550 | the skeletal system | The adult skeleton consists of | null | null | Multiple Choice | a. 56 bones., b. 76 bones., c. 106 bones., d. 206 bones. | d |
10,339 | NDQ_007551 | the skeletal system | Functions of the skeletal system include | null | null | Multiple Choice | a. making blood cells., b. storing calcium., c. giving the body shape., d. all of the above | d |
10,340 | NDQ_007552 | the skeletal system | Cartilage is a tough, flexible tissue that contains the protein | null | null | Multiple Choice | a. keratin., b. cuticle., c. collagen., d. periosteum. | c |
10,341 | NDQ_007553 | the skeletal system | Blood cells are produced by | null | null | Multiple Choice | a. bone marrow., b. compact bone., c. spongy bone., d. cartilage. | a |
10,342 | NDQ_007554 | the skeletal system | Which type of tissue gives bones their strength? | null | null | Multiple Choice | a. periosteum, b. compact bone, c. spongy bone, d. bone marrow | b |
10,343 | NDQ_007555 | the skeletal system | Immovable joints connect the bones of the | null | null | Multiple Choice | a. rib cage., b. shoulder., c. skull., d. none of the above | c |
10,344 | NDQ_007556 | the skeletal system | Why do the ends of long bones ossify later than other parts of the skeleton? | null | null | Multiple Choice | a. to cushion the ends of the bones, b. to prevent growing pains in the bones, c. to allow the bones to grow in width, d. to allow the bones to grow in length | d |
10,345 | NDQ_007557 | the skeletal system | Partly movable joints are held together by | null | null | Multiple Choice | a. collagen., b. keratin., c. cartilage., d. ligaments. | c |
10,346 | NDQ_007558 | the skeletal system | Which bones are connected by partly movable joints? | null | null | Multiple Choice | a. bones of the skull, b. bones of the ribcage, c. bones of the arms, d. bones of the legs | b |
10,347 | NDQ_007560 | the skeletal system | Which joint moves like the hinge on a door? | null | null | Multiple Choice | a. shoulder, b. elbow, c. knee, d. back | c |
10,348 | NDQ_007562 | the skeletal system | Which statement about bone fractures is false? | null | null | Multiple Choice | a. Bone fractures naturally heal on their own., b. Bone fractures are caused by excess stress on bone., c. People with osteoporosis have an increased risk of bone fractures., d. none of the above | d |
10,349 | NDQ_007563 | the skeletal system | Bones release stored calcium to the blood as needed. | null | null | Multiple Choice | a. true, b. false | a |
10,350 | NDQ_007566 | the skeletal system | Bones are like chalk: dead, dry, and brittle. | null | null | Multiple Choice | a. true, b. false | b |
10,351 | NDQ_007568 | the skeletal system | Bones are organs made up of four types of bone tissues. | null | null | Multiple Choice | a. true, b. false | a |
10,352 | NDQ_007569 | the skeletal system | Compact bone lies between spongy bone and periosteum. | null | null | Multiple Choice | a. true, b. false | a |
10,353 | NDQ_007570 | the skeletal system | An example of a ball-and-socket joint is the elbow. | null | null | Multiple Choice | a. true, b. false | b |
10,354 | NDQ_007571 | the skeletal system | Calcium and vitamin D are needed to keep bones strong. | null | null | Multiple Choice | a. true, b. false | a |
10,355 | NDQ_007572 | the skeletal system | Blood cells are produced by compact bone. | null | null | Multiple Choice | a. true, b. false | b |
10,356 | NDQ_007573 | the skeletal system | People with osteoporosis have an increased risk of bone fractures. | null | null | Multiple Choice | a. true, b. false | a |
10,357 | NDQ_007574 | the skeletal system | By birth, the human skeleton consists entirely of bone. | null | null | Multiple Choice | a. true, b. false | b |
10,358 | NDQ_007575 | the skeletal system | Bones grow thicker when they are put under stress by muscles. | null | null | Multiple Choice | a. true, b. false | a |
10,359 | NDQ_007576 | the skeletal system | A sprain occurs when a bone bends but doesnt break. | null | null | Multiple Choice | a. true, b. false | b |
10,360 | NDQ_007577 | the skeletal system | The adult skeletal system contains 206 bones. | null | null | Multiple Choice | a. true, b. false | a |
10,361 | NDQ_007578 | the skeletal system | __type of bone tissue that contains many tiny pores | null | null | Multiple Choice | a. a.compact bone, b. b.ossification, c. c.cartilage, d. d.spongy bone, e. e.periosteum, f. f.ligament, g. g.bone marrow | d |
10,362 | NDQ_007579 | the skeletal system | __tough, fibrous tissue that forms the outer layer of bone | null | null | Multiple Choice | a. a.compact bone, b. b.ossification, c. c.cartilage, d. d.spongy bone, e. e.periosteum, f. f.ligament, g. g.bone marrow | e |
10,363 | NDQ_007580 | the skeletal system | __type of bone tissue that is very dense and hard | null | null | Multiple Choice | a. a.compact bone, b. b.ossification, c. c.cartilage, d. d.spongy bone, e. e.periosteum, f. f.ligament, g. g.bone marrow | a |
10,364 | NDQ_007581 | the skeletal system | __band of fibrous tissue that holds bones together | null | null | Multiple Choice | a. a.compact bone, b. b.ossification, c. c.cartilage, d. d.spongy bone, e. e.periosteum, f. f.ligament, g. g.bone marrow | f |
10,365 | NDQ_007582 | the skeletal system | __soft tissue inside spongy bone that makes blood cells | null | null | Multiple Choice | a. a.compact bone, b. b.ossification, c. c.cartilage, d. d.spongy bone, e. e.periosteum, f. f.ligament, g. g.bone marrow | g |
10,366 | NDQ_007583 | the skeletal system | __tough, flexible connective tissue containing collagen | null | null | Multiple Choice | a. a.compact bone, b. b.ossification, c. c.cartilage, d. d.spongy bone, e. e.periosteum, f. f.ligament, g. g.bone marrow | c |
10,367 | NDQ_007584 | the skeletal system | __process in which cartilage changes to bone | null | null | Multiple Choice | a. a.compact bone, b. b.ossification, c. c.cartilage, d. d.spongy bone, e. e.periosteum, f. f.ligament, g. g.bone marrow | b |
10,368 | NDQ_007592 | the muscular system | To straighten your arm at the elbow, you would contract the | null | null | Multiple Choice | a. quadriceps muscle., b. biceps muscle., c. triceps muscle., d. elbow muscle. | c |
10,369 | NDQ_007593 | the muscular system | __organelle that allows muscles to contract | null | null | Multiple Choice | a. a.actin, b. b.cardiac muscle, c. c.smooth muscle, d. d.muscle fiber, e. e.tendon, f. f.myofibril, g. g.skeletal muscle | f |
10,370 | NDQ_007594 | the muscular system | __muscle found in the walls of internal organs except the heart | null | null | Multiple Choice | a. a.actin, b. b.cardiac muscle, c. c.smooth muscle, d. d.muscle fiber, e. e.tendon, f. f.myofibril, g. g.skeletal muscle | c |
10,371 | NDQ_007595 | the muscular system | Smooth muscle is | null | null | Multiple Choice | a. arranged in bundles., b. striped., c. involuntary., d. two of the above | c |
10,372 | NDQ_007596 | the muscular system | The energy for a muscle contraction comes from | null | null | Multiple Choice | a. actin., b. myosin., c. ATP., d. myofibrils. | c |
10,373 | NDQ_007597 | the muscular system | __tough connective tissue that attaches muscle to bone | null | null | Multiple Choice | a. a.actin, b. b.cardiac muscle, c. c.smooth muscle, d. d.muscle fiber, e. e.tendon, f. f.myofibril, g. g.skeletal muscle | e |
10,374 | NDQ_007598 | the muscular system | __long, thin muscle cell | null | null | Multiple Choice | a. a.actin, b. b.cardiac muscle, c. c.smooth muscle, d. d.muscle fiber, e. e.tendon, f. f.myofibril, g. g.skeletal muscle | d |
10,375 | NDQ_007599 | the muscular system | Which statement about cardiac muscle is false? | null | null | Multiple Choice | a. It causes the heart to beat., b. It is under conscious control., c. It is striated muscle., d. none of the above | b |
10,376 | NDQ_007600 | the muscular system | __muscle found in the walls of the heart | null | null | Multiple Choice | a. a.actin, b. b.cardiac muscle, c. c.smooth muscle, d. d.muscle fiber, e. e.tendon, f. f.myofibril, g. g.skeletal muscle | b |
10,377 | NDQ_007601 | the muscular system | Skeletal muscles are attached to bones by | null | null | Multiple Choice | a. ligaments., b. cartilage., c. muscle fibers., d. tendons. | d |
10,378 | NDQ_007603 | the muscular system | __protein filament that slides over another when a muscle contracts | null | null | Multiple Choice | a. a.actin, b. b.cardiac muscle, c. c.smooth muscle, d. d.muscle fiber, e. e.tendon, f. f.myofibril, g. g.skeletal muscle | a |
10,379 | NDQ_007605 | the muscular system | __most common type of muscle in the body | null | null | Multiple Choice | a. a.actin, b. b.cardiac muscle, c. c.smooth muscle, d. d.muscle fiber, e. e.tendon, f. f.myofibril, g. g.skeletal muscle | g |
10,380 | NDQ_007613 | the muscular system | The human heart is composed almost completely of muscle. | null | null | Multiple Choice | a. true, b. false | a |
10,381 | NDQ_007614 | the muscular system | When a muscle contracts, it gets longer. | null | null | Multiple Choice | a. true, b. false | b |
10,382 | NDQ_007616 | the muscular system | Actin filaments slide over myosin filaments when a muscle contracts. | null | null | Multiple Choice | a. true, b. false | a |
10,383 | NDQ_007619 | the muscular system | Contractions of skeletal muscles are involuntary. | null | null | Multiple Choice | a. true, b. false | b |
10,384 | NDQ_007620 | the muscular system | Weight-bearing exercises increase muscle strength. | null | null | Multiple Choice | a. true, b. false | a |
10,385 | NDQ_007621 | the muscular system | Each muscle fiber contains many | null | null | Multiple Choice | a. nuclei., b. mitochondria., c. myofibrils., d. all of the above | d |
10,386 | NDQ_007622 | the muscular system | Cardiac muscle is | null | null | Multiple Choice | a. striated., b. arranged in sheets., c. under conscious control., d. all of the above | a |
10,387 | NDQ_007623 | the muscular system | Which statement about smooth muscle is true? | null | null | Multiple Choice | a. It is arranged in bundles., b. Its contractions are voluntary., c. It is needed for the digestion of food., d. It is found in the walls of all internal organs. | c |
10,388 | NDQ_007624 | the muscular system | How many skeletal muscles are there in the human body? | null | null | Multiple Choice | a. fewer than 60, b. about 160, c. about 320, d. more than 600 | d |
10,389 | NDQ_007625 | the muscular system | A single muscle can | null | null | Multiple Choice | a. only contract., b. actively lengthen., c. move a bone back and forth., d. two of the above | a |
10,390 | NDQ_007626 | the muscular system | The name of the muscle that bends the arm at the elbow is the | null | null | Multiple Choice | a. biceps muscle., b. elbow muscle., c. triceps muscle., d. upper arm muscle. | a |
10,391 | NDQ_007627 | the muscular system | Which form(s) of exercise would increase the strength of cardiac muscle? | null | null | Multiple Choice | a. running, b. biking, c. weight lifting, d. two of the above | d |
10,392 | NDQ_007628 | the muscular system | There are four different types of muscle tissues in the human body. | null | null | Multiple Choice | a. true, b. false | b |
10,393 | NDQ_007629 | the muscular system | Aerobic exercise increases muscle endurance. | null | null | Multiple Choice | a. true, b. false | a |
10,394 | NDQ_007630 | the muscular system | Tendons attach one bone to another at a joint. | null | null | Multiple Choice | a. true, b. false | b |
10,395 | NDQ_007631 | the muscular system | Skeletal muscles work in pairs. | null | null | Multiple Choice | a. true, b. false | a |
10,396 | NDQ_007632 | the muscular system | The quadriceps is a muscle in the upper arm. | null | null | Multiple Choice | a. true, b. false | b |
10,397 | NDQ_007633 | the muscular system | Sit-ups and pushups increase muscle size and strength. | null | null | Multiple Choice | a. true, b. false | a |
10,398 | NDQ_007634 | the muscular system | Muscle contractions are responsible for virtually all movements of the body. | null | null | Multiple Choice | a. true, b. false | a |
10,399 | NDQ_007635 | food and nutrients | The six major types of nutrients include | null | null | Multiple Choice | a. starches., b. amino acids., c. lipids., d. all of the above | c |
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