1. Plantigrade
2. Digitigrade
3. Unguligrade
4. Hopping

1. 7
2. 12
3. 5
4. 4

1. 65%
2. 18%
3. 10%
4. 3%

1. An organ
2. An organism
3. A Tissue
4. A Cell

1. Molecular biology
2. Physiology
3. Biochemistry
4. Atomic biology

1. Population
2. Community
3. Biome
4. Habitat

1. 6
2. 16
3. 26
4. 15

1. Biodiversity
2. Phyletic lineage
3. Connecting link
4. Evolutionary line