SUBJECT
Science
21
Mathematics
10
Fishes
8
Classification
7
Identification
7
Mammals
7
Study and teaching
7
Technology
7
Birds
6
Trematoda
6
Botany
5
Chemistry
5
Insects
5
Parasites
5
Study and teaching (Higher)
5
Ferns
4
Anatomy
3
Angiosperms
3
Aquatic habitats
3
Bamboo
3
Biological diversity conservation
3
Calculus
3
Coastal ecology
3
Coastal zone management
3
Computer-assisted instruction
3
Diseases and pests
3
Elementary mathematics. Arithmetic
3
Endangered ecosystems
3
English
3
English language
3
Filipino
3
Filipino language
3
Palms
3
Plants
3
Platyhelminthes
3
Shells
3
Trees
3
Amaranthaceae
2
Computer literacy
2
Dictionaries
2
Differential equations, Partial
2
Disasters
2
Ecology
2
Education
2
Electric fields
2
Environmentalism
2
Eruption, 1991
2
Facial Expression
2
Government policy
2
Hearing
2
Gehiago ...