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L_0391 | heart and blood vessels | T_2201 | FIGURE 18.6 Plaque buildup in an artery reduces blood flow through the vessel. | image | textbook_images/heart_and_blood_vessels_21437.png |
L_0392 | blood | T_2203 | FIGURE 18.7 Blood donation | image | textbook_images/blood_21438.png |
L_0392 | blood | T_2205 | FIGURE 18.8 Blood cells include disk-shaped red blood cells (left), spherical white blood cells (right), and small cell fragments called platelets (center). | image | textbook_images/blood_21439.png |
L_0392 | blood | T_2206 | FIGURE 18.9 Normal and agglutinated blood: normal blood smear (left) and agglutinated blood smear (right). MEDIA Click image to the left or use the URL below. URL: https://www.ck12.org/flx/render/embeddedobject/137144 | image | textbook_images/blood_21440.png |
L_0392 | blood | T_2213 | FIGURE 18.10 Comparison of sickle-shaped and normal red blood cells | image | textbook_images/blood_21441.png |
L_0393 | the respiratory system | T_2215 | FIGURE 19.1 Structures of the respiratory system | image | textbook_images/the_respiratory_system_21442.png |
L_0393 | the respiratory system | T_2217 | FIGURE 19.2 How the diaphragm controls breathing | image | textbook_images/the_respiratory_system_21443.png |
L_0393 | the respiratory system | T_2218 | FIGURE 19.3 How gases are exchanged in alveoli | image | textbook_images/the_respiratory_system_21444.png |
L_0393 | the respiratory system | T_2222 | FIGURE 19.4 Changes in the lungs due to asthma (top), pneumonia (bottom left), and emphysema (right) | image | textbook_images/the_respiratory_system_21445.png |
L_0394 | the excretory system | T_2224 | FIGURE 19.5 Water lost in sweat must be balanced in some way for the body to maintain home- ostasis. | image | textbook_images/the_excretory_system_21446.png |
L_0394 | the excretory system | T_2226 | FIGURE 19.6 The kidneys are the main organs of the urinary system. | image | textbook_images/the_excretory_system_21447.png |
L_0394 | the excretory system | T_2226 | FIGURE 19.7 Structures in the kidney | image | textbook_images/the_excretory_system_21448.png |
L_0396 | chemistry of living things | T_2239 | FIGURE 2.6 Model of an atom | image | textbook_images/chemistry_of_living_things_21456.png |
L_0396 | chemistry of living things | T_2239 | FIGURE 2.7 Model of a water molecule | image | textbook_images/chemistry_of_living_things_21457.png |
L_0396 | chemistry of living things | T_2243 | FIGURE 2.8 Starchy foods | image | textbook_images/chemistry_of_living_things_21458.png |
L_0396 | chemistry of living things | T_2244 | FIGURE 2.9 Hemoglobin is an example of a transport protein in the blood. You can see how it works in the Figure 2.9. The heme parts of a hemoglobin molecule bind with oxygen. Each red blood cell has hundreds of hemoglobin molecules and each hemoglobin molecule can carry up to four oxygen molecules. This is how oxygen is carried in the blood to cells throughout the body. | image | textbook_images/chemistry_of_living_things_21459.png |
L_0396 | chemistry of living things | T_2245 | FIGURE 2.10 Saturated and unsaturated fatty acids In saturated fatty acids, carbon atoms are bonded to as many hydrogen atoms as possible. In other words, the carbon atoms are saturated with hydrogen. Saturated fatty acids are found in fats. In unsaturated fatty acids, some carbon atoms are not bonded to as many hydrogen atoms as possible. Instead, they share double bonds with other carbon atoms. Unsaturated fatty acids are found in oils. | image | textbook_images/chemistry_of_living_things_21460.png |
L_0396 | chemistry of living things | T_2246 | FIGURE 2.11 A nucleotide | image | textbook_images/chemistry_of_living_things_21461.png |
L_0396 | chemistry of living things | T_2246 | FIGURE 2.12 DNA molecule | image | textbook_images/chemistry_of_living_things_21462.png |
L_0396 | chemistry of living things | T_2247 | FIGURE 2.13 This student athlete is using energy to run a race. | image | textbook_images/chemistry_of_living_things_21463.png |
L_0396 | chemistry of living things | T_2250 | FIGURE 2.14 The products of photosynthesis are oxy- gen (O2 ) and glucose. These two sub- stances are also the reactants of cellular respiration. The products of cellular respi- ration are carbon dioxide (CO2 ) and water (H2 O). These two substances are also the reactants of photosynthesis. | image | textbook_images/chemistry_of_living_things_21464.png |
L_0398 | the nervous system | T_2259 | FIGURE 20.2 Parts of a neuron | image | textbook_images/the_nervous_system_21468.png |
L_0398 | the nervous system | T_2261 | FIGURE 20.3 This diagram shows a synapse between neurons. When a nerve impulse arrives at the end of the axon, neurotransmitters are released and travel to the dendrite of an- other neuron, carrying the nerve impulse from one neuron to the next. | image | textbook_images/the_nervous_system_21469.png |
L_0398 | the nervous system | T_2263 | FIGURE 20.4 The brain and spinal cord make up the central nervous system. | image | textbook_images/the_nervous_system_21470.png |
L_0398 | the nervous system | T_2264 | FIGURE 20.5 Three major parts of the brain | image | textbook_images/the_nervous_system_21471.png |
L_0398 | the nervous system | T_2265 | FIGURE 20.6 The four lobes of the left hemisphere are color coded in this illustration. | image | textbook_images/the_nervous_system_21472.png |
L_0398 | the nervous system | T_2268 | FIGURE 20.7 The central nervous system interprets messages from sense organs and inter- nal organs and the motor division sends messages to internal organs, glands, and muscles. | image | textbook_images/the_nervous_system_21473.png |
L_0398 | the nervous system | T_2271 | FIGURE 20.8 Children as young as 2 years of age can be vaccinated against viral meningitis. | image | textbook_images/the_nervous_system_21474.png |
L_0398 | the nervous system | T_2275 | FIGURE 20.9 Wearing the right type of helmet can re- duce the risk of a brain injury when riding a bike. | image | textbook_images/the_nervous_system_21475.png |
L_0399 | the senses | T_2279 | FIGURE 20.10 You have to keep your eyes on the ball to hit a volleyball. | image | textbook_images/the_senses_21476.png |
L_0399 | the senses | T_2280 | FIGURE 20.11 3-D glasses make movies look three-dimensional. | image | textbook_images/the_senses_21477.png |
L_0399 | the senses | T_2281 | FIGURE 20.12 Parts of the eye | image | textbook_images/the_senses_21478.png |
L_0399 | the senses | T_2282 | FIGURE 20.13 How eye shape affects vision | image | textbook_images/the_senses_21479.png |
L_0399 | the senses | T_2283 | FIGURE 20.14 This outdoor fruit market stimulates all the senses sight, sound, smell, taste, and touch. | image | textbook_images/the_senses_21480.png |
L_0399 | the senses | T_2284 | FIGURE 20.15 How the ears sense sounds | image | textbook_images/the_senses_21481.png |
L_0399 | the senses | T_2286 | FIGURE 20.16 The tiny red bumps on this tongue are taste buds. | image | textbook_images/the_senses_21482.png |
L_0400 | the endocrine system | T_2288 | FIGURE 20.17 Endocrine system glands | image | textbook_images/the_endocrine_system_21483.png |
L_0400 | the endocrine system | T_2294 | FIGURE 20.18 The thyroid gland is controlled by a negative feedback loop that includes the hypothalamus and pituitary gland. | image | textbook_images/the_endocrine_system_21484.png |
L_0401 | infectious diseases | T_2297 | FIGURE 21.1 Types of pathogens that cause human diseases | image | textbook_images/infectious_diseases_21485.png |
L_0401 | infectious diseases | T_2298 | FIGURE 21.2 Sneezing sends thousands of tiny droplets into the air unless the mouth and nose are covered. Each droplet may carry thousands of bacteria or viruses. | image | textbook_images/infectious_diseases_21486.png |
L_0401 | infectious diseases | T_2299 | FIGURE 21.3 The proper way to wash your hands | image | textbook_images/infectious_diseases_21487.png |
L_0402 | noninfectious diseases | T_2300 | FIGURE 21.4 In panel A, an abnormal cell (2) is prevented from dividing, and the abnormal cell dies (1). In panel B, an abnormal cell is not prevented from dividing. Instead, it divides uncontrollably, leading to the formation of a tumor. | image | textbook_images/noninfectious_diseases_21488.png |
L_0402 | noninfectious diseases | T_2301 | FIGURE 21.5 Chemicals in cigarettes | image | textbook_images/noninfectious_diseases_21489.png |
L_0402 | noninfectious diseases | T_2304 | FIGURE 21.6 This young woman is applying sunscreen to reduce her exposure to cancer-causing UV radiation. | image | textbook_images/noninfectious_diseases_21490.png |
L_0402 | noninfectious diseases | T_2308 | FIGURE 21.7 An insulin pump monitors blood glucose levels and injects the needed amount of insulin to keep glucose levels within the normal range. | image | textbook_images/noninfectious_diseases_21491.png |
L_0402 | noninfectious diseases | T_2310 | FIGURE 21.8 Pollen from ragweed blossoms like these cause allergic reactions in many people. | image | textbook_images/noninfectious_diseases_21492.png |
L_0405 | male reproductive system | T_2328 | FIGURE 22.1 Male reproductive system as viewed from the side The epididymis is a tube that is about 6 meters (20 feet) long in adults. It is tightly coiled, so it fits inside the scrotum on top of the testes. The epididymis is where sperm mature. It stores the sperm until they leave the body. The vas deferens is a tube that carries sperm from the epididymis to the urethra. The prostate gland secretes a fluid that mixes with sperm to help form semen. Semen is a whitish liquid that contains sperm. It passes through the urethra and out of the body. | image | textbook_images/male_reproductive_system_21502.png |
L_0405 | male reproductive system | T_2330 | FIGURE 22.2 Structure of sperm | image | textbook_images/male_reproductive_system_21503.png |
L_0406 | female reproductive system | T_2333 | FIGURE 22.3 Female reproductive system as viewed from the side fallopian tube. During birth, a baby passes from the uterus through the vagina to leave the body. | image | textbook_images/female_reproductive_system_21504.png |
L_0406 | female reproductive system | T_2337 | FIGURE 22.4 How an egg and its follicle develop in an ovary: (1) undeveloped eggs; (2) and (3) egg and follicle developing; (4) ovulation; (5) and (6) follicle (now called corpus lu- teum) breaking down | image | textbook_images/female_reproductive_system_21505.png |
L_0407 | reproduction and life stages | T_2339 | FIGURE 22.5 Blastocyst stage | image | textbook_images/reproduction_and_life_stages_21506.png |
L_0407 | reproduction and life stages | T_2341 | FIGURE 22.6 Embryonic Development (Weeks 48). Most organs develop in the embryo during weeks 4 through 8. If the embryo is exposed to toxins during this period, the effects are likely to be very damaging. Can you explain why? (Note: the draw- ings of the embryos are not to scale.) | image | textbook_images/reproduction_and_life_stages_21507.png |
L_0407 | reproduction and life stages | T_2343 | FIGURE 22.7 Developments in the fetus | image | textbook_images/reproduction_and_life_stages_21508.png |
L_0407 | reproduction and life stages | T_2345 | FIGURE 22.8 Placenta and umbilical cord | image | textbook_images/reproduction_and_life_stages_21509.png |
L_0407 | reproduction and life stages | T_2347 | FIGURE 22.9 A pregnant woman needs to pay special attention to her diet and eat a variety of healthy foods. | image | textbook_images/reproduction_and_life_stages_21510.png |
L_0407 | reproduction and life stages | T_2348 | FIGURE 22.10 Smiling is an early milestone in infant development. | image | textbook_images/reproduction_and_life_stages_21511.png |
L_0407 | reproduction and life stages | T_2350 | FIGURE 22.11 Learning how to write is a major accom- plishment of childhood. | image | textbook_images/reproduction_and_life_stages_21512.png |
L_0407 | reproduction and life stages | T_2351 | FIGURE 22.12 A teenage boy develops a bump in his throat called an Adams apple because of an increase in the size of the larynx, or voice box. | image | textbook_images/reproduction_and_life_stages_21513.png |
L_0407 | reproduction and life stages | T_2351 | FIGURE 22.13 Teen friends enjoying card games and each others company | image | textbook_images/reproduction_and_life_stages_21514.png |
L_0407 | reproduction and life stages | T_2355 | FIGURE 22.14 This elderly man not only plays the guitar. He built the guitar that hes playing in the photo. to be one of them? If so, adopt a healthy lifestyle now and follow it for life. Doing so will increase your chances of staying fit and active in old age. | image | textbook_images/reproduction_and_life_stages_21515.png |
L_0408 | reproductive system health | T_2359 | FIGURE 22.15 HPV, the virus that causes genital warts, may also cause cancer. | image | textbook_images/reproductive_system_health_21516.png |
L_0409 | what is ecology | T_2364 | FIGURE 23.1 Organisms show tremendous diversity. Some of the smallest and largest living or- ganisms are pictured here: billions of mi- croorganisms that thrive in this hot spring give it its striking colors (left); blue whales are the largest living organisms (right). Organisms depend on their environment to meet their needs, so they are greatly influenced by it. There are many factors in the environment that affect organisms. The factors can be classified as either biotic or abiotic. | image | textbook_images/what_is_ecology_21518.png |
L_0409 | what is ecology | T_2365 | FIGURE 23.2 From individuals to the biosphere, ecol- ogy can be studied at several different levels. An ecosystem consists of all the biotic and abiotic factors in an area. It includes a community, the abiotic factors in the environment, and all their interactions. A biome is a group of similar ecosystems with the same general abiotic factors and primary producers. Biomes may be terrestrial (land-based) or aquatic (water-based). The biosphere consists of all the parts of Earth where life can be found. This is the highest level of organization in ecology. It includes all of the other levels below it. The biosphere consists of all the worlds biomes, both terrestrial and aquatic. | image | textbook_images/what_is_ecology_21519.png |
L_0410 | populations | T_2367 | FIGURE 23.3 Patterns of population distribution include clumped, random, and uniform distribu- tions. Each pattern is associated with dif- ferent types of species or environments. | image | textbook_images/populations_21520.png |
L_0410 | populations | T_2368 | FIGURE 23.4 Curve A represents exponential popula- tion growth. Curve B represents logistic population growth. | image | textbook_images/populations_21521.png |
L_0410 | populations | T_2370 | FIGURE 23.5 A population pyramid shows the age-sex structure of a population. This population pyramid represents the human population of the African country of Angola in 2005. | image | textbook_images/populations_21522.png |
L_0410 | populations | T_2370 | FIGURE 23.6 Growth of the Human Population. | image | textbook_images/populations_21523.png |
L_0410 | populations | T_2372 | FIGURE 23.7 The demographic transition occurred in the stages shown in this graph. | image | textbook_images/populations_21524.png |
L_0413 | biomes | T_2389 | FIGURE 23.18 Major terrestrial biomes | image | textbook_images/biomes_21535.png |
L_0413 | biomes | T_2391 | FIGURE 23.19 Terrestrial biomes include tropical rainfor- est, temperate grassland, and tundra. | image | textbook_images/biomes_21536.png |
L_0413 | biomes | T_2395 | FIGURE 23.20 Plants and algae are producers in the littoral zone along the shore of this lake in Iceland. | image | textbook_images/biomes_21537.png |
L_0413 | biomes | T_2396 | FIGURE 23.21 Intertidal zone along the North Sea in the Netherlands Below 200 meters is the aphotic zone. There are no primary producers here because there isnt enough sunlight for photosynthesis. However, the water may be rich in nutrients because of dead organisms drifting down from above. Organisms that live here may include bacteria, sponges, sea anemones, worms, sea stars, and fish. The bottom of the ocean is called the benthic zone. It includes the sediments on the bottom of the ocean and the water just above it. Organisms living in this zone include clams and crabs. They may be few in number due to relatively scarce nutrients in this zone. There are many more organisms around deep-sea vents. Microorganisms use chemicals that pour out of the vents to make food by chemosynthesis. These producers support large numbers of other organisms, including crustaceans and red tubeworms like those pictured in Figure 23.22. | image | textbook_images/biomes_21538.png |
L_0413 | biomes | T_2396 | FIGURE 23.22 Ocean vent biome | image | textbook_images/biomes_21539.png |
L_0415 | cycles of matter | T_2408 | FIGURE 24.7 The water cycle has no beginning or end. It just keeps repeating. | image | textbook_images/cycles_of_matter_21546.png |
L_0415 | cycles of matter | T_2410 | FIGURE 24.8 The thorny devil lizard lives in such a dry environment in Australia that it has a unique specialization for obtaining water. The scales on its body collect dew and channel it to the corners of the mouth, so the lizard can drink it. | image | textbook_images/cycles_of_matter_21547.png |
L_0415 | cycles of matter | T_2412 | FIGURE 24.9 The Carbon Cycle. | image | textbook_images/cycles_of_matter_21548.png |
L_0415 | cycles of matter | T_2415 | FIGURE 24.10 The nitrogen cycle | image | textbook_images/cycles_of_matter_21549.png |
L_0417 | air pollution | T_2423 | FIGURE 25.1 This stone statue has been dissolved by acid rain. | image | textbook_images/air_pollution_21553.png |
L_0417 | air pollution | T_2424 | FIGURE 25.2 Earths atmosphere creates a natural greenhouse effect that moderates Earths temperature. | image | textbook_images/air_pollution_21554.png |
L_0417 | air pollution | T_2424 | FIGURE 25.3 Shrinking of the Arctic ice cap due to global warming contributes to rising sea levels. | image | textbook_images/air_pollution_21555.png |
L_0417 | air pollution | T_2427 | FIGURE 25.4 Carbon monoxide alarm | image | textbook_images/air_pollution_21556.png |
L_0418 | water pollution | T_2429 | FIGURE 25.5 Algal bloom | image | textbook_images/water_pollution_21557.png |
L_0418 | water pollution | T_2430 | FIGURE 25.6 Hypoxic dead zone in the Gulf of Mexico | image | textbook_images/water_pollution_21558.png |
L_0418 | water pollution | T_2435 | FIGURE 25.7 Plastic debris in the ocean washes up on shore in the Hawaiian Islands | image | textbook_images/water_pollution_21559.png |
L_0419 | natural resources | T_2438 | FIGURE 25.8 This photo shows a huge coal field in the Philippines as it appears from space. Coal is a fossil fuel and a nonrenewable natural resource. | image | textbook_images/natural_resources_21560.png |
L_0419 | natural resources | T_2439 | FIGURE 25.9 Bare soil is easily washed away by heavy rains or winds, but it takes millions of years to replace. Ruts in soil washed away by runoff are evident in this photo. | image | textbook_images/natural_resources_21561.png |
L_0419 | natural resources | T_2441 | FIGURE 25.10 Worldwide energy use in 2010 | image | textbook_images/natural_resources_21562.png |
L_0419 | natural resources | T_2442 | FIGURE 25.11 Sunlight, wind, and living things can all be used as energy resources. | image | textbook_images/natural_resources_21563.png |
L_0419 | natural resources | T_2444 | FIGURE 25.12 If you use air conditioning in hot weather, set the thermostat above normal room temperature to save energy resources. | image | textbook_images/natural_resources_21564.png |
L_0419 | natural resources | T_2446 | FIGURE 25.13 Kitchen and garden wastes can be recycled by composting them. | image | textbook_images/natural_resources_21565.png |
L_0424 | photosynthesis | T_2494 | FIGURE 4.7 Photosynthetic organisms include plants, algae, and some bacteria. | image | textbook_images/photosynthesis_21589.png |
L_0424 | photosynthesis | T_2495 | FIGURE 4.8 The small green, circular structures in the plant cells pictured here are chloroplasts. | image | textbook_images/photosynthesis_21590.png |
L_0424 | photosynthesis | T_2498 | FIGURE 4.9 Chloroplast | image | textbook_images/photosynthesis_21591.png |
L_0425 | cellular respiration | T_2501 | FIGURE 4.11 Astronaut Chris Hadfield eats a banana aboard the International Space Station. | image | textbook_images/cellular_respiration_21593.png |
L_0425 | cellular respiration | T_2505 | FIGURE 4.12 Cut-away view of a mitochondrion | image | textbook_images/cellular_respiration_21594.png |
L_0425 | cellular respiration | T_2505 | FIGURE 4.13 | image | textbook_images/cellular_respiration_21595.png |
L_0425 | cellular respiration | T_2508 | FIGURE 4.14 How photosynthesis and cellular respira- tion are related | image | textbook_images/cellular_respiration_21596.png |
L_0425 | cellular respiration | T_2510 | FIGURE 4.15 The muscles of these hurdlers are work- ing too hard for aerobic respiration to keep them supplied with energy. | image | textbook_images/cellular_respiration_21597.png |
L_0425 | cellular respiration | T_2512 | FIGURE 4.16 Bread has little holes in it from carbon dioxide produced by yeast. | image | textbook_images/cellular_respiration_21598.png |
L_0428 | protein synthesis | T_2538 | FIGURE 5.15 Blueprints for a house | image | textbook_images/protein_synthesis_21613.png |
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