Biology and health sciences Information

1. Biochemistry ( Level 3)
2. Chemical biology
3. Molecular biology ( Level 3)
4. Biomolecule
5. Alkaloid
   1. Caffeine
   2. Cocaine
   3. Morphine
   4. Nicotine
6. Biological pigment
   1. Carotenoid
   2. Chlorophyll
   3. Melanin
7. Carbohydrate ( Level 3)
   1. Sugars
      1. Fructose
      2. Glucose
      3. Lactose
   2. Polysaccharides
      1. Cellulose
      2. Chitin
      3. Glycogen
      4. Starch
8. Hormone ( Level 3)
   1. Dopamine
   2. Adrenaline
   3. Estrogen
   4. Insulin
   5. Oxytocin
   6. Plant hormone
   7. Testosterone
9. Lipid ( Level 3)
   1. Steroid
      1. Cholesterol
   2. Fat
   3. Fatty acid
10. Nucleic acid
    1. DNA ( Level 3)
    2. RNA ( Level 3)
11. Protein ( Level 3)
    1. Amino acid
    2. Enzyme
    3. Hemoglobin
    4. Protein (nutrient)

1. Ecology ( Level 2)
2. Biodiversity ( Level 3)
3. Biome
4. Biosphere
5. Competition (biology)
6. Ecological niche
7. Ecosystem ( Level 3)
8. Endangered species
9. Extinction ( Level 3)
10. Extremophile
11. Habitat
12. Invasive species
13. Parasitism
14. Population
15. Sustainability
16. Symbiosis
17. Wildlife conservation

Zoology: General

This section contains 4 articles.

1. Zoology ( Level 3)
2. Animal ( Level 2)
3. Animal coloration
   1. Camouflage

Ethology

This section contains 14 articles.

1. Ethology
2. Intelligence ( Level 3)
3. Sleep ( Level 3)
   1. Hibernation
4. Animal locomotion
   1. Bipedalism
5. Animal migration
6. Carnivore
   1. Predation
   2. Scavenger
7. Herbivore
   1. Grazing
8. Instinct
9. Sociality

1. Arthropod ( Level 3)
2. Bilateria
3. Chordate
   1. Craniate
   2. Vertebrate
4. Gnathostomata
5. Invertebrate
6. Tetrapod

1. Cnidaria
2. Coral
3. Jellyfish

1. Echinoderm
2. Sea cucumber
3. Sea urchin
4. Starfish

1. Mollusca ( Level 3)
2. Clam
   1. Mussel
   2. Oyster
   3. Scallop
3. Octopus
4. Squid
5. Conch
6. Slug
   1. Snail

1. Sponge

1. Arachnid
2. Mite
3. Pseudoscorpion
4. Scorpion
5. Spider
   1. Tarantula
6. Tick

1. Crustacean ( Level 3)
2. Crab
3. Crayfish
4. Decapoda
5. Krill
6. Lobster
7. Malacostraca
8. Ostracod
9. Shrimp
10. Woodlouse

1. Insect ( Level 3)
   1. Pterygota
2. Cockroach
3. Earwig
4. Flea
5. Louse
   1. Body louse
6. Mantis
7. Phasmatodea
8. Termite

Beetles (Coleoptera) (5 articles)

1. Beetle
2. Coccinellidae
3. Dung beetle
4. Firefly
5. Weevil

Flies (Diptera) (10 articles)

1. Fly
2. Common fruit fly
3. Black fly
4. Botfly
5. Crane fly
6. Calliphoridae
7. Tabanidae
8. Housefly
9. Mosquito
10. Tsetse fly

Hemiptera (true bugs) (7 articles)

1. Hemiptera
2. Cicada
3. Bed bug
4. Leafhopper
5. Aphid
6. Scale insect
7. Whitefly

Hymenoptera

This section contains 10 articles.

1. Hymenoptera
2. Ant
   1. Fire ant
   2. Carpenter ant
3. Bee
   1. Bumblebee
   2. Africanized bee
   3. Western honey bee
4. Wasp
   1. Hornet

Lepidoptera

This section contains 8 articles.

1. Lepidoptera
2. Butterfly
3. Bombyx mori
4. Geometer moth
5. Lymantria dispar dispar
6. Moth
7. Pieris brassicae
8. Swallowtail butterfly

Odonata

This section contains 3 articles.

1. Odonata
2. Damselfly
3. Dragonfly

Orthoptera

This section contains 6 articles.

1. Orthoptera
2. Cricket (insect)
3. Grasshopper
4. Mole cricket
5. Locust
6. Tettigoniidae

1. Trilobite

Hexapoda

This section contains 2 articles.

1. Hexapoda
2. Springtail

Myriapoda

This section contains 3 articles.

1. Myriapoda
   1. Centipede
   2. Millipede

Chelicerata

This section contains 3 articles.

1. Chelicerata
2. Eurypterid
3. Xiphosura

Ecdysozoa

This section contains 3 articles.

1. Nematode
   1. Caenorhabditis elegans
2. Tardigrade

Lophotrochozoa

This section contains 5 articles.

1. Annelid
   1. Earthworm
   2. Leech
   3. Polychaete
2. Bryozoa

Platyzoa

This section contains 2 articles.

1. Flatworm
   1. Cestoda

1. Agnatha
2. Hagfish
3. Lamprey
4. Ostracoderm

1. Fish ( Level 3)
2. Coral reef fish
3. Deep-sea fish
4. Chondrichthyes
5. Acanthodii
6. Osteichthyes
   1. Actinopterygii
   2. Sarcopterygii
      1. Coelacanth
      2. Lungfish
7. Placoderm
8. Anglerfish
9. Arapaima
10. Chimaera
11. Eel
12. Electric eel
13. Flying fish
14. Milkfish
15. Northern pike
16. Oarfish
17. Mullet
18. Ophidiiformes
19. Scorpaeniformes
20. Stickleback

Batoidea

This section contains 6 articles.

1. Batoidea
2. Stingray
3. Manta ray
4. Skate
5. Sawfish
6. Electric ray

Characiformes

This section contains 2 articles.

1. Characiformes
2. Piranha

Chondrosteans

This section contains 2 articles.

1. Bichir
2. Sturgeon

Clupeiformes

This section contains 5 articles.

1. Anchovy
2. Herring
3. Ilish
4. Sardine
5. Sprat

Cypriniformes

This section contains 4 articles.

1. Cypriniformes
   1. Carp
   2. Goldfish
   3. Koi

Cyprinodontiformes

This section contains 2 articles.

1. Cyprinodontiformes
2. Guppy

Gadiformes

This section contains 3 articles.

1. Alaska pollock
2. Cod
3. Haddock

Osmeriformes

This section contains 2 articles.

1. Galaxiidae
2. Smelt

Perciformes

This section contains 17 articles.

1. Perciformes
2. Barracuda
3. Cichlid
   1. Tilapia
4. Goby
5. Mackerel
6. Marlin
7. Mahi-mahi
8. Serranidae
   1. European seabass
   2. Grouper
9. Siamese fighting fish
10. Swordfish
11. Perch
12. Remora
13. Tuna
14. Wrasse

Pleuronectiformes

This section contains 5 articles.

1. Flatfish
2. Flounder
3. Halibut
4. Plaice
5. Turbot

Salmoniformes

This section contains 3 articles.

1. Salmonidae
2. Salmon
3. Trout

Sharks

This section contains 6 articles.

1. Shark
2. Great white shark
3. Hammerhead shark
4. Tiger shark
5. Nurse shark
6. Whale shark

Siluriformes

This section contains 2 articles.

1. Catfish
2. Loricariidae

Syngnathiformes

This section contains 1 article.

1. Seahorse

Tetraodontiformes

This section contains 2 articles.

1. Ocean sunfish
2. Tetraodontidae

1. Amphibian ( Level 3)
2. Caecilian
3. Salamander
   1. Newt
4. Frog
   1. Hylidae
   2. Leptodactylidae
   3. True toad
   4. True frog
      1. American bullfrog

1. Reptile ( Level 3)
2. Crocodilia
   1. Alligator
   2. Caiman
   3. Crocodile
3. Lizard
   1. Chameleon
   2. Gecko
   3. Gila monster
   4. Green iguana
   5. Horned lizard
   6. Komodo dragon
   7. Skink
4. Snake
   1. Eastern copperhead
   2. Agkistrodon piscivorus
   3. Boidae
   4. Coral snake
   5. Garter snake
   6. Sea snake
   7. Mamba
   8. Naja
   9. Rattlesnake
   10. Adder
5. Tuatara
6. Turtle
   1. Alligator snapping turtle
   2. Box turtle
   3. Common snapping turtle
   4. Painted turtle
   5. Red-eared slider
   6. Sea turtle
   7. Tortoise
      1. Galápagos tortoise

Dinosaurs and prehistoric reptiles

This section contains 13 articles.

1. Dinosaur ( Level 3)
   1. Allosaurus
   2. Apatosaurus
   3. Diplodocus
   4. Iguanodon
   5. Stegosaurus
   6. Triceratops
   7. Tyrannosaurus
   8. Velociraptor
2. Plesiosaur
3. Pterosaur
4. Synapsida
   1. Dimetrodon

General articles

This section contains 5 articles.

1. Bird ( Level 3)
2. Seabird
3. Bird of prey
4. Palaeognathae
5. Archaeopteryx

Accipitriformes and Falconiformes

This section contains 9 articles.

1. Accipiter
2. Eagle
   1. Golden eagle
3. Falcon
   1. Peregrine falcon
4. New World vulture
5. Old World vulture
6. Osprey
7. Secretarybird

Anseriformes

This section contains 4 articles.

1. Duck
   1. Mallard
2. Goose
3. Swan

Apodiformes

This section contains 2 articles.

1. Hummingbird
2. Swift

Caprimulgiformes

This section contains 1 article.

1. Nightjar

Charadriiformes

This section contains 4 articles.

1. Auk
2. Gull
3. Sandpiper
4. Tern

Ciconiiformes

This section contains 4 articles.

1. Heron
2. Ibis
3. Shoebill
4. Stork

Columbiformes

This section contains 4 articles.

1. Columbidae
   1. Dodo
   2. Passenger pigeon
   3. Rock dove

Coraciiformes

This section contains 3 articles.

1. River kingfisher
2. Hornbill
3. Hoopoe

Cuculiformes

This section contains 3 articles.

1. Cuckoo
2. Hoatzin
3. Turaco

Galliformes

This section contains 8 articles.

1. Galliformes
2. Chicken ( Level 3)
3. Grouse
4. Guineafowl
5. Peafowl
6. Common pheasant
7. Common quail
8. Domestic turkey

Gaviiformes

This section contains 1 article.

1. Loon

Gruiformes

This section contains 4 articles.

1. Gruiformes
2. Crane (bird)
3. Bustard
4. Rail

Passerines

This section contains 2 articles.

1. Passerine
2. Songbird

Corvoidea

This section contains 8 articles.

1. Bird-of-paradise
2. Corvidae
   1. Corvus
      1. Common raven
   2. Eurasian magpie
3. Honeyeater
4. Lyrebird
5. Shrike

Passerida

This section contains 23 articles.

1. Bulbul
2. Cardinalidae
3. Bunting
4. Finch
5. Icterid
6. Lark
7. Mockingbird
8. New World warbler
9. Old World flycatcher
   1. European robin
   2. Common nightingale
10. Ploceidae
11. Old World sparrow
    1. House sparrow
12. Starling
    1. Common myna
    2. Common starling
13. Sunbird
14. Swallow
15. Tit
16. Thrush
    1. American robin
17. Wren

Tyranni

This section contains 3 articles.

1. Antbird
2. Ovenbird (family)
3. Tyrant flycatcher

Pelecaniformes

This section contains 5 articles.

1. Cormorant
2. Darter
3. Frigatebird
4. Pelican
5. Sulidae

Phoenicopteriformes

This section contains 1 article.

1. Flamingo

Piciformes

This section contains 3 articles.

1. Honeyguide
2. Toucan
3. Woodpecker

Procellariiformes

This section contains 2 articles.

1. Procellariiformes
2. Albatross

Psittaciformes

This section contains 4 articles.

1. Parrot
2. Ara
3. Budgerigar
4. Cockatoo

Ratites

This section contains 6 articles.

1. Cassowary
2. Emu
3. Kiwi
4. Moa
5. Common ostrich
6. Rhea

Sphenisciformes

This section contains 1 article.

1. Penguin

Strigiformes

This section contains 3 articles.

1. Owl
   1. Eurasian eagle-owl
   2. Barn owl

Tinamiformes

This section contains 1 article.

1. Tinamou

Trogoniformes

This section contains 2 articles.

1. Trogon
2. Resplendent quetzal

1. Mammal ( Level 3)
2. Aardvark
3. Armadillo
4. Hyrax
5. Pangolin
6. Sirenia

Bats

This section contains 5 articles.

1. Bat
2. Megabat
3. Microbat
4. Pteropus
5. Vampire bat

Carnivora

This section contains 36 articles.

1. Carnivora
2. Bear
   1. Brown bear
   2. Giant panda
   3. Polar bear
3. Canidae
   1. Dog ( Level 3)
      1. Dingo
   2. Coyote
   3. Fox
   4. Jackal
   5. Wolf
4. Felidae
   1. Cat ( Level 3)
   2. Cheetah
   3. Cougar
   4. Jaguar
   5. Leopard
   6. Lion
   7. Lynx
   8. Smilodon
   9. Snow leopard
   10. Tiger
5. Hyena
6. Mongoose
7. Mustelidae
   1. European badger
   2. Honey badger
   3. Marten
   4. Otter
   5. Sea otter
   6. Stoat
   7. Weasel
   8. Wolverine
8. Procyonidae
9. Skunk

Cetaceans

This section contains 8 articles.

1. Cetacea
2. Whale
3. Blue whale
4. Dolphin
5. Humpback whale
6. Orca
7. Porpoise
8. Sperm whale

Erinaceids

This section contains 1 article.

1. Hedgehog

Artiodactyla

This section contains 38 articles.

1. Artiodactyl
2. Ruminant
3. Alpaca
4. Bovidae
   1. African buffalo
   2. American bison
   3. Antelope
   4. Aurochs
   5. Capra
   6. Cattle ( Level 3)
   7. Gazelle
   8. Gaur
   9. Goat
   10. Impala
   11. Muskox
   12. Sheep ( Level 3)
   13. Water buffalo
   14. Wildebeest
   15. European bison
   16. Yak
5. Camel
   1. Bactrian camel
   2. Dromedary
6. Deer
   1. Elk
   2. Moose
   3. Red deer
   4. Reindeer
7. Llama
8. Giraffe
9. Guanaco
10. Hippopotamus
11. Peccary
12. Pronghorn
13. Sus (genus)
    1. Pig ( Level 3)
    2. Wild boar
14. Vicuña

Lagomorphs

This section contains 3 articles.

1. Lagomorpha
2. Hare
3. Rabbit

Marsupials

This section contains 8 articles.

1. Marsupial
2. Diprotodontia
   1. Kangaroo
   2. Koala
3. Dasyuromorphia
   1. Tasmanian devil
4. Opossum
5. Peramelemorphia

Monotremes

This section contains 3 articles.

1. Monotreme
2. Echidna
3. Platypus

Perissodactyla

This section contains 7 articles.

1. Perissodactyla
2. Donkey
3. Equidae
4. Horse ( Level 3)
5. Rhinoceros
6. Tapir
7. Zebra

Pilosa

This section contains 2 articles.

1. Anteater
2. Sloth

Pinnipeds

This section contains 4 articles.

1. Pinniped
2. Eared seal
3. Earless seal
4. Walrus

Primates

This section contains 22 articles.

1. Primate ( Level 3)
2. Monkey
3. Ape
   1. Pan (genus)
      1. Chimpanzee
      2. Bonobo
   2. Gibbon
   3. Gorilla
   4. Orangutan
   5. Human ( Level 1)
4. New World monkey
   1. Capuchin monkey
   2. Spider monkey
5. Old World monkey
   1. Baboon
   2. Macaque
   3. Rhesus macaque
6. Strepsirrhini
   1. Slow loris
   2. Galago
   3. Lemur
7. Tarsier

Proboscidea

This section contains 3 articles.

1. Proboscidea
2. Elephant
3. Mammoth

Rodents

This section contains 15 articles.

1. Rodent ( Level 3)
2. Capybara
3. Nutria
4. Beaver
5. Dormouse
6. Guinea pig
7. Hamster
8. Marmot
9. Mouse
10. Muridae
11. Muskrat
12. Porcupine
13. Rat
    1. Brown rat
14. Squirrel

Soricomorpha

This section contains 2 articles.

1. Shrew
   1. Mole (animal)

Cats

This section contains 2 articles.

1. Siamese cat
2. Domestic short-haired cat

Cattle

This section contains 3 articles.

1. American Brahman
2. Hereford cattle
3. Holstein Friesian

Dogs

This section contains 7 articles.

1. Gun dog
2. Herding dog
3. Hound
4. Livestock guardian dog
5. Mastiff
6. Spitz
7. Terrier

Horses

This section contains 5 articles.

1. Arabian horse
2. Andalusian horse
3. Friesian horse
4. Thoroughbred
5. Pony

Hybrids

This section contains 1 article.

1. Mule

Sheep

This section contains 1 article.

1. Merino

Green algae

This section contains 3 articles.

1. Green algae
2. Charophyta
3. Chlorophyta

Bryophytes

This section contains 5 articles.

1. Bryophyte
2. Hornwort
3. Marchantiophyta
4. Moss
   1. Sphagnum

Pteridophytes

This section contains 4 articles.

1. Pteridophyte
2. Fern
   1. Equisetum
3. Lycophyte

Gymnosperms

This section contains 13 articles.

1. Gymnosperm
2. Cycad
3. Ginkgo biloba

Pinophyta (conifers) (10 articles)

1. Conifer
2. Cedrus
3. Cupressus
4. Douglas fir
5. Fir
6. Juniper
7. Pine
8. Podocarpus
9. Sequoioideae
10. Spruce

1. Monocotyledon

Alismatales

This section contains 3 articles.

1. Araceae
   1. Anthurium
   2. Philodendron

Arecales

This section contains 1 article.

1. Arecaceae

Asparagales

This section contains 10 articles.

1. Agave
2. Aloe
3. Amaryllis
4. Gladiolus
5. Iridaceae
   1. Iris
6. Lily of the valley
7. Narcissus
8. Orchid
9. Yucca

Commelinales

This section contains 1 article.

1. Pontederia crassipes

Liliales

This section contains 5 articles.

1. Alstroemeria
2. Colchicum
3. Liliaceae
   1. Lilium
   2. Tulip

Pandanales

This section contains 1 article.

1. 1. Pandanus

Poales

This section contains 9 articles.

1. Bromeliaceae
   1. Puya
   2. Spanish moss
2. Cyperaceae
3. Juncus
4. Poaceae
   1. Bamboo
   2. Sugarcane
5. Typha

Zingiberales

This section contains 2 articles.

1. Canna
2. Heliconia

1. Eudicots
2. Magnoliids

Apiales

This section contains 2 articles.

1. Apiaceae
2. Hedera

Asterales

This section contains 11 articles.

1. Asteraceae
   1. Bellis perennis
   2. Chrysanthemum
   3. Cirsium
   4. Dahlia
   5. Solidago
   6. Helianthus
   7. Sonchus
   8. Tagetes
   9. Taraxacum
2. Campanulaceae

Brassicales

This section contains 2 articles.

1. Arabidopsis thaliana
2. Tropaeolum

Caryophyllales

This section contains 1 article.

1. Cactus

Cornales

This section contains 1 article.

1. Cornus

Cucurbitales

This section contains 1 article.

1. Cucurbitaceae

Ericales

This section contains 8 articles.

1. Diospyros
2. Ericaceae
   1. Rhododendron
      1. Azalea
3. Theaceae
   1. Camellia
4. Impatiens
5. Primulaceae

Fabales

This section contains 2 articles.

1. Fabaceae
   1. Mimosa

Fagales

This section contains 5 articles.

1. Alder
2. Beech
3. Birch
4. Hickory
5. Oak

Gentianales

This section contains 3 articles.

1. Apocynaceae
2. Gardenia
3. Rubiaceae

Lamiales

This section contains 6 articles.

1. Lamiaceae
2. Oleaceae
   1. Fraxinus
3. Salvia
4. Sesame
5. Verbena

Malpighiales

This section contains 6 articles.

1. Euphorbiaceae
2. Flax
3. Hypericum
4. Poinsettia
5. Viola
6. Willow

Malvales

This section contains 2 articles.

1. Malvaceae
   1. Adansonia

Myrtales

This section contains 4 articles.

1. Henna
2. Melastomataceae
3. Myrtaceae
   1. Eucalyptus

Proteales

This section contains 3 articles.

1. Proteaceae
2. Nelumbo
3. Platanus

Rosales

This section contains 6 articles.

1. Cannabis
2. Elm
3. Moraceae
   1. Ficus sycomorus
4. Rosaceae
   1. Rose

Sapindales

This section contains 2 articles.

1. Mahogany
2. Maple

Solanales

This section contains 1 article.

1. Convolvulaceae

Culinary fruits

This section contains 38 articles.

1. Apple
2. Apricot
3. Avocado
4. Banana
5. Blackberry
6. Blackcurrant
7. Blueberry
8. Cherry
9. Citrus
   1. Grapefruit
   2. Kumquat
   3. Lemon
   4. Lime
   5. Orange
   6. Mandarin orange
10. Fig
11. Cranberry
12. Date palm
13. Durian
14. Grape
15. Guava
16. Jackfruit
17. Kiwifruit
18. Lychee
19. Mango
20. Morus
21. Cucumis melo
22. Olive
23. Papaya
24. Peach
25. Pear
26. Pineapple
27. Plum
28. Pomegranate
29. Raspberry
30. Strawberry
31. Tamarind
32. Watermelon

Botanical fruits used as culinary vegetables

This section contains 12 articles.

1. Bell pepper
2. Breadfruit
3. Chili pepper
4. Cooking banana
5. Cucumber
6. Cucurbita
   1. Pumpkin
   2. Zucchini
7. Eggplant
8. Green bean
9. Okra
10. Tomato

Grains

This section contains 10 articles.

1. Barley
2. Maize ( Level 3)
3. Millet
4. Oat
5. Rice ( Level 3)
   1. Oryza sativa
6. Rye
7. Sorghum
8. Wheat ( Level 3)
   1. Common wheat

Pseudocereals

This section contains 3 articles.

1. Amaranth
2. Buckwheat
3. Quinoa

Nuts

This section contains 8 articles.

1. Almond
2. Brazil nut
3. Cashew
4. Chestnut
5. Hazelnut
6. Macadamia
7. Pecan
8. Walnut

Pulses

This section contains 9 articles.

1. Bean
   1. Vicia faba
   2. Lima bean
   3. Soybean ( Level 3)
   4. Phaseolus vulgaris
2. Chickpea
3. Lentil
4. Pea
5. Peanut

Leafy vegetables

This section contains 9 articles.

1. Eruca vesicaria
2. Cabbage
3. Chard
4. Chinese cabbage
5. Collard (plant)
6. Kale
7. Lettuce
8. Rapeseed
9. Spinach

Root vegetables

This section contains 15 articles.

1. Arrowroot
2. Beetroot
3. Carrot
4. Cassava
5. Daikon
6. Onion
7. Parsnip
8. Potato ( Level 3)
9. Radish
10. Rutabaga
11. Sugar beet
12. Sweet potato
13. Taro
14. Turnip
15. Yam

Other vegetables

This section contains 9 articles.

1. Artichoke
2. Asparagus
3. Broccoli
4. Cauliflower
5. Celery
6. Chicory
7. Coconut
8. Kohlrabi
9. Leek

Herbs and spices

This section contains 20 articles.

1. Anise
2. Basil
3. Black pepper
4. Cardamom
5. Cinnamon
6. Clove
7. Cumin
8. Fennel
9. Garlic
10. Ginger
11. Ginseng
12. Horseradish
13. Lavandula
14. Liquorice
15. Mentha
16. Nutmeg
17. Parsley
18. Saffron
19. Thyme
20. Vanilla

1. Fungus ( Level 3)
2. Mushroom
3. Yeast
   1. Saccharomyces cerevisiae
4. Ascomycota
5. Basidiomycota
6. Zygomycota

Edible fungi

This section contains 6 articles.

1. Agaricus
2. Boletus edulis
3. Chanterelle
4. Pleurotus ostreatus
5. Shiitake
6. Truffle

Poisonous fungi

This section contains 2 articles.

1. Amanita muscaria
2. Amanita phalloides

1. Eukaryote ( Level 3)
2. Plankton
3. Protist
4. Paramecium
5. Prokaryote
   1. Archaea ( Level 3)
   2. Bacteria ( Level 3)
      1. Cyanobacteria
      2. Escherichia coli
      3. Salmonella
      4. Staphylococcus aureus
6. Rhizaria
7. Excavata
   1. Euglenozoa
8. Algae ( Level 3)
   1. Red algae
   2. Seaweed
9. Chromalveolata
   1. Stramenopile
      1. Brown algae
         1. Kelp
      2. Diatom
   2. Haptophyte
   3. Cryptomonad
   4. Alveolate
      1. Dinoflagellate
10. Lichen
11. Amoebozoa
12. Slime mold

1. Health ( Level 3)
   1. Mental health ( Level 3)
2. Nutrition ( Level 3)
   1. Diet
   2. Dietary supplement
   3. Food group
   4. Hunger
   5. Malnutrition
   6. Vitamin
3. Hygiene ( Level 3)
   1. Bathing
   2. Feminine hygiene
   3. Oral hygiene
   4. Shaving
4. Physical fitness
   1. Body mass index
   2. Exercise ( Level 3)
   3. Obesity ( Level 3)
   4. Weight loss
5. Ageing ( Level 3)
6. Breastfeeding
7. Fertilisation
   1. Infertility
8. Occupational safety and health
9. Stress (biology)