Biology

1. Botany

1.1. a plant sprout

1.2. parts of a plant

1.2.1. root

1.2.2. stem

1.2.3. bud

1.2.4. petal

1.3. foliage

2. Microbiology

2.1. a cell

2.2. a red blood vessel

2.3. absorption

2.4. amino acid

2.5. enzyme

2.6. protein

2.7. nutrient

2.8. sickle cell trait

3. Ecology

3.1. fossil fuels

3.2. soil

3.3. habitat

4. verbs

4.1. digest

4.2. evolve

4.3. yawn

4.4. snore

4.5. mate

4.6. eliminate disease

4.7. forage

4.8. hatch

5. Anatomy

5.1. liver

5.2. kidneys

5.3. limb

5.4. stomach

5.5. whiskers

5.6. hooves

5.7. lungs

6. Zoology

6.1. feline mammals

6.2. species diversity

6.3. cattle

6.4. flock

6.5. arthropods

6.5.1. insect

6.5.1.1. cockroach

6.5.1.2. moth

6.5.2. centipede

6.5.3. mite

6.6. depending on what they eat

6.6.1. herbivore (plants)

6.6.2. carnivore (meat)

6.6.3. omnivore (both)

6.6.4. prey

6.6.5. predator

6.7. depending on body temperature

6.7.1. ectotherm (cold-blooded)

6.7.2. endotherm

6.8. courtship

6.9. breeding

6.10. nesting

6.11. habitat

7. Diseases

7.1. flu

7.2. plague /pleɪɡ/

7.3. cancer /ˈkæn.sər/

7.4. paralysis /pəˈræl.ə.sɪs/

7.5. chickenpox

8. adjectives

8.1. endemic

8.2. extinct

8.3. endangered

8.4. humid (moist) climate

8.5. venomous.