lessonID
stringlengths
6
6
lessonName
stringlengths
3
52
ID
stringlengths
6
21
content
stringlengths
10
6.57k
media_type
stringclasses
2 values
path
stringlengths
28
76
L_0416
ecosystem change
T_2419
FIGURE 24.12 Lichen growing on bare lava rocks
image
textbook_images/ecosystem_change_21551.png
L_0416
ecosystem change
T_2419
FIGURE 24.13 Just a few months after a forest fire, fireweed and other pioneer plants are already growing among the charred tree trunks.
image
textbook_images/ecosystem_change_21552.png
L_0420
biodiversity and extinction
T_2448
FIGURE 25.14 This coral reef (top) and tropical rainforest (bottom) have a tremendous variety of different species.
image
textbook_images/biodiversity_and_extinction_21566.png
L_0420
biodiversity and extinction
T_2448
FIGURE 25.15 Water strider insect
image
textbook_images/biodiversity_and_extinction_21567.png
L_0420
biodiversity and extinction
T_2449
FIGURE 25.16 A bee pollinates a flowering plant.
image
textbook_images/biodiversity_and_extinction_21568.png
L_0420
biodiversity and extinction
T_2453
FIGURE 25.17 Bison graze on grasses in a tall-grass prairie nature preserve in Okla- homa.
image
textbook_images/biodiversity_and_extinction_21569.png
L_0420
biodiversity and extinction
T_2453
FIGURE 25.18 Purple loosestrife is a European wildflower that was introduced to North America in the early 1800s. It soon spread to take over wetland habitats throughout the U.S. and Canada. Purple loosestrife replaces native wetland plants and threatens native wildlife by eliminating natural foods and cover. It also blocks irrigation systems.
image
textbook_images/biodiversity_and_extinction_21570.png
L_0429
mendels discoveries
T_2548
FIGURE 6.1 Gregor Mendel
image
textbook_images/mendels_discoveries_21620.png
L_0429
mendels discoveries
T_2549
FIGURE 6.2 Traits Mendel studied in peas
image
textbook_images/mendels_discoveries_21621.png
L_0429
mendels discoveries
T_2551
FIGURE 6.3 Mendels flower color experiment
image
textbook_images/mendels_discoveries_21622.png
L_0429
mendels discoveries
T_2553
FIGURE 6.4 Seed color: B = yellow (dominant); b = green (recessive)
image
textbook_images/mendels_discoveries_21623.png
L_0429
mendels discoveries
T_2553
FIGURE 6.5 F2 plants produced when F1 plants self- pollinate
image
textbook_images/mendels_discoveries_21624.png
L_0430
introduction to genetics
T_2556
FIGURE 6.6 This diagram shows how genes and alle- les are related.
image
textbook_images/introduction_to_genetics_21625.png
L_0430
introduction to genetics
T_2561
FIGURE 6.7 Gametes from a heterozygote parent (Bb)
image
textbook_images/introduction_to_genetics_21626.png
L_0430
introduction to genetics
T_2562
FIGURE 6.8 Punnett square for two Bb parents
image
textbook_images/introduction_to_genetics_21627.png
L_0430
introduction to genetics
T_2565
FIGURE 6.9 Codominance (left) and incomplete domi- nance (right)
image
textbook_images/introduction_to_genetics_21628.png
L_0430
introduction to genetics
T_2568
FIGURE 6.10 Skin color darkens when exposed to the sun.
image
textbook_images/introduction_to_genetics_21629.png
L_0430
introduction to genetics
T_2571
FIGURE 6.11 Inheritance of sex chromosomes
image
textbook_images/introduction_to_genetics_21630.png
L_0431
advances in genetics
T_2574
FIGURE 6.13 Human Genome Project logo
image
textbook_images/advances_in_genetics_21632.png
L_0431
advances in genetics
T_2578
FIGURE 6.14 Abraham Lincoln (center) may have had the genetic disorder Marfan syndrome
image
textbook_images/advances_in_genetics_21633.png
L_0431
advances in genetics
T_2580
FIGURE 6.15 The enzyme DNA ligase joins together a gene and bacterial (plasmid) DNA. The DNA that results is called recombinant DNA.
image
textbook_images/advances_in_genetics_21634.png
L_0431
advances in genetics
T_2582
FIGURE 6.16 Bacteria are modified to produce the hu- man protein cytokine. This is a protein that helps fight infections.
image
textbook_images/advances_in_genetics_21635.png
L_0438
archaea
T_2661
FIGURE 8.16 Archaea that live around hydrothermal vents like this one must be able to with- stand extreme heat and acidity.
image
textbook_images/archaea_21677.png
L_0438
archaea
T_2663
FIGURE 8.17 The water in Mono Lake is alkaline, or basic.
image
textbook_images/archaea_21678.png
L_0438
archaea
T_2665
FIGURE 8.18 Cows like this one can digest cellu- lose only with the help of archaean methanogens.
image
textbook_images/archaea_21679.png
L_0443
alligators and crocodiles
T_2695
FIGURE 1.1 Nile crocodiles display the basic crocodil- ian body plan.
image
textbook_images/alligators_and_crocodiles_21697.png
L_0444
amphibians
T_2698
FIGURE 1.1
image
textbook_images/amphibians_21698.png
L_0445
angiosperms
T_2703
FIGURE 1.1
image
textbook_images/angiosperms_21699.png
L_0445
angiosperms
T_2703
FIGURE 1.2 Part stigma Definition The part of the carpel where the pollen must land for fertilization to occur. Tube that makes up part of the carpel. Large bottom part of the carpel where the ovules are contained. Part of the ovary that is the female gametophyte and that after fertilization becomes the seed.
image
textbook_images/angiosperms_21700.png
L_0445
angiosperms
T_2703
FIGURE 1.3
image
textbook_images/angiosperms_21701.png
L_0446
animal behaviors
T_2707
FIGURE 1.1
image
textbook_images/animal_behaviors_21702.png
L_0447
animal communication
T_2711
FIGURE 1.1 This chimpanzee is communicating with his face. His expression is called a fear grin. It tells other chimpanzees that he is not a threat.
image
textbook_images/animal_communication_21703.png
L_0447
animal communication
T_2711
FIGURE 1.2
image
textbook_images/animal_communication_21704.png
L_0447
animal communication
T_2713
FIGURE 1.3
image
textbook_images/animal_communication_21705.png
L_0448
animal like protists
T_2715
FIGURE 1.1
image
textbook_images/animal_like_protists_21706.png
L_0450
arachnids
T_2722
FIGURE 1.1
image
textbook_images/arachnids_21709.png
L_0452
arthropods
T_2728
FIGURE 1.1
image
textbook_images/arthropods_21711.png
L_0452
arthropods
T_2729
FIGURE 1.2 The blue American lobster illustrates the segmented body plan of the arthropods.
image
textbook_images/arthropods_21712.png
L_0461
basic and applied science
T_2759
FIGURE 1.1
image
textbook_images/basic_and_applied_science_21729.png
L_0461
basic and applied science
T_2759
FIGURE 1.2
image
textbook_images/basic_and_applied_science_21730.png
L_0462
biotechnology in agriculture
T_2760
FIGURE 1.1
image
textbook_images/biotechnology_in_agriculture_21731.png
L_0463
bird reproduction
T_2762
FIGURE 1.1
image
textbook_images/bird_reproduction_21733.png
L_0463
bird reproduction
T_2763
FIGURE 1.2
image
textbook_images/bird_reproduction_21734.png
L_0464
birds
T_2764
FIGURE 1.1
image
textbook_images/birds_21735.png
L_0464
birds
T_2766
FIGURE 1.2
image
textbook_images/birds_21736.png
L_0464
birds
T_2766
FIGURE 1.3 About 60 living bird species are flightless, such as penguins, as were many extinct birds. Flightlessness often evolves when birds live on isolated islands. The absence of land predators might make flying no longer necessary. Other birds evolved into new niches where flying was no longer necessary. This may have been in response to limited resources. For example, the flightless cormorant can no longer fly, but its wings are now adapted to swim in the sea ( Figure 1.4).
image
textbook_images/birds_21737.png
L_0464
birds
T_2766
FIGURE 1.4
image
textbook_images/birds_21738.png
L_0466
blood pressure
T_2773
FIGURE 1.1
image
textbook_images/blood_pressure_21740.png
L_0482
centipedes and millipedes
T_2821
FIGURE 1.1
image
textbook_images/centipedes_and_millipedes_21764.png
L_0486
choosing healthy foods
T_2839
FIGURE 1.1
image
textbook_images/choosing_healthy_foods_21774.png
L_0486
choosing healthy foods
T_2841
FIGURE 1.2 Compare sodium in foods like soup, bread, and frozen meals; choose the foods with lower levels. Drink water instead of drinks with high levels of sugar.
image
textbook_images/choosing_healthy_foods_21775.png
L_0486
choosing healthy foods
T_2842
FIGURE 1.3 Look at the percent daily values on the food label ( Figure 1.3). Which nutrients have values of 5% or less? These are the nutrients that are low in this food. They include fiber, vitamin A, vitamin C, and iron. Which nutrients have values of 20% or more? These are the nutrients that are high in this food. They include sodium, potassium, and calcium.
image
textbook_images/choosing_healthy_foods_21776.png
L_0487
chordates
T_2846
FIGURE 1.1
image
textbook_images/chordates_21778.png
L_0487
chordates
T_2847
FIGURE 1.2
image
textbook_images/chordates_21779.png
L_0491
cnidarians
T_2858
FIGURE 1.1 The Portuguese Man o War can deliver nasty stings with its tentacles.
image
textbook_images/cnidarians_21785.png
L_0492
competition
T_2859
FIGURE 1.1
image
textbook_images/competition_21786.png
L_0495
consumers and decomposers
T_2866
FIGURE 1.1
image
textbook_images/consumers_and_decomposers_21792.png
L_0495
consumers and decomposers
T_2867
FIGURE 1.2
image
textbook_images/consumers_and_decomposers_21793.png
L_0496
control of insects
T_2869
FIGURE 1.1 Termites can destroy wooden structures.
image
textbook_images/control_of_insects_21794.png
L_0497
crustaceans
T_2872
FIGURE 1.1
image
textbook_images/crustaceans_21795.png
L_0497
crustaceans
T_2873
FIGURE 1.2 Barnacles are non-moving crustaceans. Many barnacles attach themselves to man-made structures.
image
textbook_images/crustaceans_21796.png
L_0498
cyclic behavior of animals
T_2877
FIGURE 1.1
image
textbook_images/cyclic_behavior_of_animals_21797.png
L_0498
cyclic behavior of animals
T_2878
FIGURE 1.2
image
textbook_images/cyclic_behavior_of_animals_21798.png
L_0503
diversity of birds
T_2898
FIGURE 1.1
image
textbook_images/diversity_of_birds_21809.png
L_0503
diversity of birds
T_2899
FIGURE 1.2
image
textbook_images/diversity_of_birds_21810.png
L_0508
ecosystems
T_2912
FIGURE 1.1
image
textbook_images/ecosystems_21818.png
L_0520
fields in the life sciences
T_2935
FIGURE 1.1
image
textbook_images/fields_in_the_life_sciences_21832.png
L_0520
fields in the life sciences
T_2935
FIGURE 1.2
image
textbook_images/fields_in_the_life_sciences_21833.png
L_0524
food webs
T_2946
FIGURE 1.1
image
textbook_images/food_webs_21842.png
L_0526
frogs and toads
T_2950
FIGURE 1.1
image
textbook_images/frogs_and_toads_21847.png
L_0526
frogs and toads
T_2952
FIGURE 1.2
image
textbook_images/frogs_and_toads_21848.png
L_0527
fungi
T_2953
FIGURE 1.1
image
textbook_images/fungi_21849.png
L_0527
fungi
T_2955
FIGURE 1.2 The blue in this blue cheese is actually mold, which is a fungus.
image
textbook_images/fungi_21850.png
L_0529
fungi reproduction
T_2960
FIGURE 1.1 Yeast reproduce asexually by budding.
image
textbook_images/fungi_reproduction_21851.png
L_0529
fungi reproduction
T_2961
FIGURE 1.2
image
textbook_images/fungi_reproduction_21852.png
L_0534
gymnosperms
T_2972
FIGURE 1.1 A red pine, which bears seeds in cones, is an example of a conifer.
image
textbook_images/gymnosperms_21857.png
L_0534
gymnosperms
T_2973
FIGURE 1.2
image
textbook_images/gymnosperms_21858.png
L_0534
gymnosperms
T_2973
FIGURE 1.3
image
textbook_images/gymnosperms_21859.png
L_0534
gymnosperms
T_2974
FIGURE 1.4
image
textbook_images/gymnosperms_21860.png
L_0534
gymnosperms
T_2975
FIGURE 1.5
image
textbook_images/gymnosperms_21861.png
L_0535
habitat and niche
T_2977
FIGURE 1.1 The Konik horse.
image
textbook_images/habitat_and_niche_21862.png
L_0535
habitat and niche
T_2978
FIGURE 1.2 Kudzu, a Japanese vine introduced inten- tionally to the southeastern United States, has out-competed the native vegetation.
image
textbook_images/habitat_and_niche_21863.png
L_0535
habitat and niche
T_2978
FIGURE 1.3
image
textbook_images/habitat_and_niche_21864.png
L_0536
habitat destruction
T_2980
FIGURE 1.1
image
textbook_images/habitat_destruction_21866.png
L_0536
habitat destruction
T_2980
FIGURE 1.2
image
textbook_images/habitat_destruction_21867.png
L_0536
habitat destruction
T_2981
FIGURE 1.3
image
textbook_images/habitat_destruction_21868.png
L_0536
habitat destruction
T_2984
FIGURE 1.4 An exotic species, the brown tree snake, hitchhiked on an aircraft to the Pacific Islands, causing the extinctions of many bird and mammal species which had evolved in the absence of predators.
image
textbook_images/habitat_destruction_21869.png
L_0536
habitat destruction
T_2984
FIGURE 1.5 These zebra mussels, an invasive species, live on most man-made and natural surfaces. Here they have infested the walls of the Arthur V. Ormond Lock on the Arkansas River. They have caused significant damage to American waterways, locks, and power plants.
image
textbook_images/habitat_destruction_21870.png
L_0554
human uses of fungi
T_3037
FIGURE 1.1
image
textbook_images/human_uses_of_fungi_21895.png
L_0554
human uses of fungi
T_3038
FIGURE 1.2
image
textbook_images/human_uses_of_fungi_21896.png
L_0555
human vision
T_3039
FIGURE 1.1 All eyes are on the ball in this basketball game. Think about how we use the sense of sight in other games.
image
textbook_images/human_vision_21897.png
L_0555
human vision
T_3040
FIGURE 1.2 This boy is wearing 3-D glasses; when you look at objects and people in the real world, your eyes automatically see in three dimensions.
image
textbook_images/human_vision_21898.png
L_0555
human vision
T_3041
FIGURE 1.3
image
textbook_images/human_vision_21899.png
L_0555
human vision
T_3041
FIGURE 1.4
image
textbook_images/human_vision_21900.png
L_0556
humans and primates
T_3044
FIGURE 1.1
image
textbook_images/humans_and_primates_21902.png
L_0556
humans and primates
T_3044
FIGURE 1.2 Tool using in a primate. A gorilla uses a stick to determine the waters depth. Gestation (pregnancy) lasts 8-9 months and usually results in the birth of a single offspring. The young are born helpless, and thus, they need parental care for long periods of time. Compared with most other mammals, great apes have a long adolescence and are not fully mature until 8-13 years of age (longer in humans). Females usually give birth only once every few years.
image
textbook_images/humans_and_primates_21903.png
L_0558
importance of arthropods
T_3049
FIGURE 1.1
image
textbook_images/importance_of_arthropods_21904.png
L_0559
importance of biodiversity
T_3053
FIGURE 1.1
image
textbook_images/importance_of_biodiversity_21905.png
L_0559
importance of biodiversity
T_3054
FIGURE 1.2
image
textbook_images/importance_of_biodiversity_21906.png
L_0559
importance of biodiversity
T_3055
FIGURE 1.3
image
textbook_images/importance_of_biodiversity_21907.png