lessonID
stringclasses 666
values | lessonName
stringclasses 631
values | ID
stringlengths 6
21
| content
stringlengths 10
6.57k
⌀ | media_type
stringclasses 2
values | ImagePath
stringlengths 28
76
⌀ |
---|---|---|---|---|---|
L_0541 | hearing and balance | T_2999 | FIGURE 1.1 | image | textbook_images/hearing_and_balance_21875.png |
L_0541 | hearing and balance | T_2999 | FIGURE 1.2 nerve). The brain reads the sound and tells you what you are hearing. | image | textbook_images/hearing_and_balance_21876.png |
L_0541 | hearing and balance | T_3000 | FIGURE 1.3 This gymnast is using the semicircular canals in her ears, along with the cerebel- lum in her brain, to help keep her balance on the balance beam. | image | textbook_images/hearing_and_balance_21877.png |
L_0542 | heart | T_3001 | FIGURE 1.1 The atria receive blood and the ventricles pump blood out of the heart. | image | textbook_images/heart_21879.png |
L_0543 | helpful bacteria | T_3004 | FIGURE 1.1 | image | textbook_images/helpful_bacteria_21881.png |
L_0544 | hiv and aids | T_3010 | FIGURE 1.1 In this picture, the large structure on the bottom is a human immune cell. It is infected with HIV. A new HIV particle is shown budding out of the immune cell. | image | textbook_images/hiv_and_aids_21882.png |
L_0545 | homeostasis | T_3013 | FIGURE 1.1 | image | textbook_images/homeostasis_21883.png |
L_0546 | how the eye works | T_3015 | FIGURE 1.1 | image | textbook_images/how_the_eye_works_21884.png |
L_0547 | human causes of extinction | T_3019 | FIGURE 1.1 | image | textbook_images/human_causes_of_extinction_21886.png |
L_0548 | human digestive system | T_3021 | FIGURE 1.1 | image | textbook_images/human_digestive_system_21888.png |
L_0550 | human genome project | T_3025 | FIGURE 1.1 | image | textbook_images/human_genome_project_21890.png |
L_0551 | human population | T_3026 | FIGURE 1.1 | image | textbook_images/human_population_21891.png |
L_0552 | human skeletal system | T_3030 | FIGURE 1.1 Storage. Bones store calcium. They contain more calcium than any other organ. Calcium is released by the bones when blood levels of calcium drop too low. The mineral, phosphorus is also stored in bones. | image | textbook_images/human_skeletal_system_21892.png |
L_0552 | human skeletal system | T_3031 | FIGURE 1.2 | image | textbook_images/human_skeletal_system_21893.png |
L_0568 | indoor air pollution | T_3086 | FIGURE 1.1 | image | textbook_images/indoor_air_pollution_21918.png |
L_0569 | infancy and childhood | T_3088 | FIGURE 1.1 This babys teeth have started to come in. Babies often chew on toys or other objects when they are getting new teeth. They may even chew on their toes. | image | textbook_images/infancy_and_childhood_21919.png |
L_0569 | infancy and childhood | T_3089 | FIGURE 1.2 | image | textbook_images/infancy_and_childhood_21920.png |
L_0571 | influences on darwin | T_3093 | FIGURE 1.1 | image | textbook_images/influences_on_darwin_21922.png |
L_0572 | injuries of the nervous system | T_3096 | FIGURE 1.1 | image | textbook_images/injuries_of_the_nervous_system_21923.png |
L_0579 | jawless fish | T_3113 | FIGURE 1.1 | image | textbook_images/jawless_fish_21937.png |
L_0580 | keeping bones and joints healthy | T_3115 | FIGURE 1.1 | image | textbook_images/keeping_bones_and_joints_healthy_21938.png |
L_0580 | keeping bones and joints healthy | T_3116 | FIGURE 1.2 | image | textbook_images/keeping_bones_and_joints_healthy_21939.png |
L_0581 | keeping skin healthy | T_3121 | FIGURE 1.1 | image | textbook_images/keeping_skin_healthy_21940.png |
L_0582 | keeping the nervous system healthy | T_3124 | FIGURE 1.1 Wear safety goggles or sunglasses to protect your eyes from injury. Wear hearing protectors, such as ear plugs to protect your ears from loud sounds. Wear a safety helmet for activities like bike riding and skating ( Figure 1.2). Wear a safety belt every time you ride in a motor vehicle. Avoid unnecessary risks, such as performing dangerous stunts on your bike. Never dive into water that is not approved for diving. If the water is too shallow, you could seriously injure your brain or spinal cord. A few minutes of fun could turn into a lifetime in a wheelchair. | image | textbook_images/keeping_the_nervous_system_healthy_21941.png |
L_0582 | keeping the nervous system healthy | T_3124 | FIGURE 1.2 | image | textbook_images/keeping_the_nervous_system_healthy_21942.png |
L_0583 | kidneys | T_3125 | FIGURE 1.1 | image | textbook_images/kidneys_21943.png |
L_0583 | kidneys | T_3126 | FIGURE 1.2 | image | textbook_images/kidneys_21944.png |
L_0586 | light reactions of photosynthesis | T_3136 | FIGURE 1.1 | image | textbook_images/light_reactions_of_photosynthesis_21952.png |
L_0586 | light reactions of photosynthesis | T_3139 | FIGURE 1.2 | image | textbook_images/light_reactions_of_photosynthesis_21953.png |
L_0586 | light reactions of photosynthesis | T_3141 | FIGURE 1.3 Photosynthesis is a two stage process. As is depicted here, the energy from sun- light is needed to start photosynthesis. The initial stage is called the light reac- tions as they occur only in the presence of light. During these initial reactions, water is used and oxygen is released. The energy from sunlight is converted into a small amount of ATP and an en- ergy carrier called NADPH. Together with carbon dioxide, these are used to make glucose (sugar) through a process called the Calvin Cycle. NADP+ and ADP (and Pi, inorganic phosphate) are regenerated to complete the process. | image | textbook_images/light_reactions_of_photosynthesis_21954.png |
L_0587 | limiting factors to population growth | T_3142 | FIGURE 1.1 | image | textbook_images/limiting_factors_to_population_growth_21955.png |
L_0590 | male reproductive structures | T_3156 | FIGURE 1.1 | image | textbook_images/male_reproductive_structures_21965.png |
L_0591 | male reproductive system | T_3157 | FIGURE 1.1 Testosterone, the main sex hormone in males, allows men to build larger muscles than women. | image | textbook_images/male_reproductive_system_21966.png |
L_0599 | menstrual cycle | T_3172 | FIGURE 1.1 | image | textbook_images/menstrual_cycle_21984.png |
L_0601 | microscopes | T_3177 | FIGURE 1.1 Basic light microscopes opened up a new world to curious people. | image | textbook_images/microscopes_21986.png |
L_0601 | microscopes | T_3177 | FIGURE 1.2 | image | textbook_images/microscopes_21987.png |
L_0601 | microscopes | T_3178 | FIGURE 1.3 A scanning electron microscope. | image | textbook_images/microscopes_21988.png |
L_0606 | mollusks | T_3189 | FIGURE 1.1 | image | textbook_images/mollusks_21996.png |
L_0606 | mollusks | T_3189 | FIGURE 1.2 | image | textbook_images/mollusks_21997.png |
L_0607 | muscles and exercise | T_3192 | FIGURE 1.1 Anaerobic exercises involve the muscles working against resistance. In this case the resistance is the weight of a barbell. | image | textbook_images/muscles_and_exercise_21998.png |
L_0607 | muscles and exercise | T_3193 | FIGURE 1.2 When done regularly, aerobic activities, such as cycling, make the heart stronger. Other aerobic activities include mowing lawn, shoveling snow and cross country skiing. | image | textbook_images/muscles_and_exercise_21999.png |
L_0607 | muscles and exercise | T_3194 | FIGURE 1.3 | image | textbook_images/muscles_and_exercise_22000.png |
L_0608 | muscles bones and movement | T_3195 | FIGURE 1.1 The biceps and triceps act against one another to bend and straighten the elbow joint. To bend the elbow, the biceps contracts and the triceps relaxes. To straighten the elbow, the triceps contract and the biceps relax. | image | textbook_images/muscles_bones_and_movement_22001.png |
L_0610 | nails and hair | T_3203 | FIGURE 1.1 | image | textbook_images/nails_and_hair_22003.png |
L_0613 | nervous system | T_3210 | FIGURE 1.1 | image | textbook_images/nervous_system_22008.png |
L_0614 | non infectious reproductive system disorders | T_3213 | FIGURE 1.1 | image | textbook_images/non_infectious_reproductive_system_disorders_22009.png |
L_0616 | nonrenewable resources | T_3217 | FIGURE 1.1 | image | textbook_images/nonrenewable_resources_22013.png |
L_0616 | nonrenewable resources | T_3217 | FIGURE 1.2 | image | textbook_images/nonrenewable_resources_22014.png |
L_0619 | organic compounds | T_3224 | FIGURE 1.1 | image | textbook_images/organic_compounds_22019.png |
L_0619 | organic compounds | T_3225 | FIGURE 1.2 | image | textbook_images/organic_compounds_22020.png |
L_0619 | organic compounds | T_3225 | FIGURE 1.3 Amino acids connect together like beads on a necklace. MET, ASN, TRP, and GLN refer to four different amino acids. | image | textbook_images/organic_compounds_22021.png |
L_0619 | organic compounds | T_3225 | FIGURE 1.4 | image | textbook_images/organic_compounds_22022.png |
L_0619 | organic compounds | T_3226 | FIGURE 1.5 Phospholipids in a membrane, shown as two layers (a bilayer) of phospholipids fac- ing each other. | image | textbook_images/organic_compounds_22023.png |
L_0619 | organic compounds | T_3227 | FIGURE 1.6 A model representing DNA, a nucleic acid. | image | textbook_images/organic_compounds_22024.png |
L_0621 | organization of the human body | T_3232 | FIGURE 1.1 | image | textbook_images/organization_of_the_human_body_22029.png |
L_0621 | organization of the human body | T_3233 | FIGURE 1.2 | image | textbook_images/organization_of_the_human_body_22030.png |
L_0623 | origins of life | T_3242 | FIGURE 1.1 | image | textbook_images/origins_of_life_22034.png |
L_0623 | origins of life | T_3242 | FIGURE 1.2 | image | textbook_images/origins_of_life_22035.png |
L_0624 | outdoor air pollution | T_3243 | FIGURE 1.1 | image | textbook_images/outdoor_air_pollution_22036.png |
L_0624 | outdoor air pollution | T_3243 | FIGURE 1.2 | image | textbook_images/outdoor_air_pollution_22037.png |
L_0624 | outdoor air pollution | T_3245 | FIGURE 1.3 | image | textbook_images/outdoor_air_pollution_22038.png |
L_0626 | pathogens | T_3251 | FIGURE 1.1 | image | textbook_images/pathogens_22041.png |
L_0626 | pathogens | T_3251 | FIGURE 1.2 | image | textbook_images/pathogens_22042.png |
L_0626 | pathogens | T_3251 | FIGURE 1.3 | image | textbook_images/pathogens_22043.png |
L_0626 | pathogens | T_3251 | FIGURE 1.4 The Herpes simplex virus, which is rep- resented here, causes cold sores on the lips. Viruses are extremely small parti- cles. This illustration is greatly magnified. | image | textbook_images/pathogens_22044.png |
L_0626 | pathogens | T_3252 | FIGURE 1.5 | image | textbook_images/pathogens_22045.png |
L_0627 | pedigree analysis | T_3255 | FIGURE 1.1 In a pedigree, squares symbolize males, and circles represent females. A horizon- tal line joining a male and female indicates that the couple had offspring. Vertical lines indicate offspring which are listed left to right, in order of birth. Shading of the circle or square indicates an individual who has the trait being traced. In this pedigree, the inheritance of the recessive trait is being traced. A is the dominant allele, and a is the recessive allele. | image | textbook_images/pedigree_analysis_22047.png |
L_0628 | peripheral nervous system | T_3256 | FIGURE 1.1 The blue lines in this drawing represent nerves of the peripheral nervous system. Every peripheral nerve is connected di- rectly or indirectly to the spinal cord. No- tice the thick sciatic nerve. It is the longest (and thickest) nerve in the body, running from the lower region of the spinal cord to just above the knee. | image | textbook_images/peripheral_nervous_system_22048.png |
L_0628 | peripheral nervous system | T_3257 | FIGURE 1.2 The sensory division interprets messages from sense organs and internal organs, and the motor division sends messages to internal organs, glands, and muscles. | image | textbook_images/peripheral_nervous_system_22049.png |
L_0628 | peripheral nervous system | T_3257 | FIGURE 1.3 | image | textbook_images/peripheral_nervous_system_22050.png |
L_0628 | peripheral nervous system | T_3258 | FIGURE 1.4 These womens central nervous systems are controlling the movements of their hands and arms as they play the violin. Their brains send commands to their so- matic nervous system, which controls the muscles of their hands and arms. | image | textbook_images/peripheral_nervous_system_22051.png |
L_0628 | peripheral nervous system | T_3258 | FIGURE 1.5 The woman pictured here is just pretend- ing to be frightened, but assuming that she really was scared, think of which di- vision of the autonomic nervous system would prepare her body for an emergency. your heart rate. The fact that this happened in the blink of an eye shows how amazing the nervous system is. | image | textbook_images/peripheral_nervous_system_22052.png |
L_0637 | polygenic traits | T_3277 | FIGURE 1.1 Polygenic traits tend to result in a distribu- tion that resembles a bell-shaped curve, with few at the extremes and most in the middle. There may be 4 or 6 or more alleles involved in the phenotype. At the left extreme, individuals are com- pletely dominant for all alleles, and at the right extreme, individuals are completely recessive for all alleles. Individuals in the middle have various combinations of recessive and dominant alleles. | image | textbook_images/polygenic_traits_22067.png |
L_0638 | population growth patterns | T_3279 | FIGURE 1.1 | image | textbook_images/population_growth_patterns_22068.png |
L_0638 | population growth patterns | T_3280 | FIGURE 1.2 | image | textbook_images/population_growth_patterns_22069.png |
L_0638 | population growth patterns | T_3281 | FIGURE 1.3 Usually, populations first grow exponentially while resources are abundant. But as populations increase and re- sources become less available, rates of growth slow down and slowly level off, reaching the carrying capacity. The carrying capacity is the upper limit to the population size that the environment can support. This type of growth is shown as an "S-shaped" curve below ( Figure 1.3) and is called logistic growth. Why do you think occurs? | image | textbook_images/population_growth_patterns_22070.png |
L_0640 | pregnancy and childbirth | T_3284 | FIGURE 1.1 | image | textbook_images/pregnancy_and_childbirth_22074.png |
L_0640 | pregnancy and childbirth | T_3286 | FIGURE 1.2 | image | textbook_images/pregnancy_and_childbirth_22075.png |
L_0641 | preserving water sources | T_3289 | FIGURE 1.1 | image | textbook_images/preserving_water_sources_22076.png |
L_0642 | preventing infectious diseases | T_3292 | FIGURE 1.1 This picture shows the proper way to wash your hands. Frequent hand washing helps prevent the spread of pathogens. and wash your hands often to avoid spreading pathogens to other people. Dont go to work or school if youre vomiting, have diarrhea or are running a fever (and if you are, drink plenty of fluids). Also, to avoid infectious diseases, dont share personal items; use your own toothbrush, comb, and razor. And avoid sharing drinking glasses or dining utensils. | image | textbook_images/preventing_infectious_diseases_22078.png |
L_0643 | preventing noninfectious diseases | T_3293 | FIGURE 1.1 | image | textbook_images/preventing_noninfectious_diseases_22079.png |
L_0645 | process of cellular respiration | T_3298 | FIGURE 1.1 | image | textbook_images/process_of_cellular_respiration_22084.png |
L_0646 | processes of breathing | T_3305 | FIGURE 1.1 | image | textbook_images/processes_of_breathing_22085.png |
L_0647 | producers | T_3306 | FIGURE 1.1 | image | textbook_images/producers_22086.png |
L_0654 | recombinant dna | T_3321 | FIGURE 1.1 | image | textbook_images/recombinant_dna_22095.png |
L_0655 | reduce reuse and recycle | T_3323 | FIGURE 1.1 | image | textbook_images/reduce_reuse_and_recycle_22096.png |
L_0655 | reduce reuse and recycle | T_3325 | FIGURE 1.2 These aluminum cans are packed to- gether in a recycling plant to be reused. If you have recycling in your community, make sure you separate aluminum, plastics, glass, and paper products. See if your school recycles. If not, you and some friends could start a recycling club, or organize efforts to better recycling goals. | image | textbook_images/reduce_reuse_and_recycle_22097.png |
L_0656 | renewable resources and alternative energy sources | T_3327 | FIGURE 1.1 Wind power, a renewable resource, shown here in a modern wind energy farm. The wind is used to turn turbines that generate electricity. | image | textbook_images/renewable_resources_and_alternative_energy_sources_22098.png |
L_0656 | renewable resources and alternative energy sources | T_3327 | FIGURE 1.2 These solar panels convert sunlight into electricity. | image | textbook_images/renewable_resources_and_alternative_energy_sources_22099.png |
L_0656 | renewable resources and alternative energy sources | T_3327 | FIGURE 1.3 Hydropower plant. | image | textbook_images/renewable_resources_and_alternative_energy_sources_22100.png |
L_0656 | renewable resources and alternative energy sources | T_3327 | FIGURE 1.4 | image | textbook_images/renewable_resources_and_alternative_energy_sources_22101.png |
L_0661 | respiration | T_3340 | FIGURE 1.1 Being able to control breathing is impor- tant for many activities, such as swim- ming. The woman in the photograph is exhaling as she exits the water. | image | textbook_images/respiration_22107.png |
L_0661 | respiration | T_3340 | FIGURE 1.2 During respiration, oxygen gets pulled into the lungs and enters the blood by passing across the thin alveoli mem- branes and into the capillaries. The alve- oli are at the end of the long air passages. | image | textbook_images/respiration_22108.png |
L_0662 | respiratory system diseases | T_3342 | FIGURE 1.1 | image | textbook_images/respiratory_system_diseases_22109.png |
L_0662 | respiratory system diseases | T_3345 | FIGURE 1.2 Asthma occurs when the bronchioles swell and the muscles around the bronchioles contract. | image | textbook_images/respiratory_system_diseases_22110.png |
L_0662 | respiratory system diseases | T_3346 | FIGURE 1.3 | image | textbook_images/respiratory_system_diseases_22111.png |
L_0662 | respiratory system diseases | T_3347 | FIGURE 1.4 | image | textbook_images/respiratory_system_diseases_22112.png |
L_0662 | respiratory system diseases | T_3349 | FIGURE 1.5 | image | textbook_images/respiratory_system_diseases_22113.png |
L_0662 | respiratory system diseases | T_3349 | FIGURE 1.6 | image | textbook_images/respiratory_system_diseases_22114.png |
L_0664 | respiratory system organs | T_3356 | FIGURE 1.1 | image | textbook_images/respiratory_system_organs_22115.png |
Subsets and Splits