1. Charless Darwin
2. William Harvey
3. Karl von Frisch
4. Carolus Linnaeus
Karl von Frisch
1. Sericin
2. Collagen
3. Mucin
4. Myosin
Sericin
1. Two jointed
2. Three jointed
3. Four jointed
4. Unjointed
Two jointed
1. Resinous substance
2. Alkaloid
3. Mucoid substance
4. Juice acidic in nature
Resinous substance
1. Planaria, Tubularia, Plumularia and radiolarians
2. Starfish, jellyfish, cuttle fish and dog fish
3. Millipede, crab, Scorpion, cockroach and tick
4. Leech, locust, leucosolenia and lobster
Millipede, crab, Scorpion, cockroach and tick
1. A larva floats passively on the surface of water
2. Each egg contains air spaces
3. Respiratory trumpets in pupa are long and narrow
4. Respiratory siphons in the larva are very short
Respiratory trumpets in pupa are long and narrow
1. Larbrum, epipharynx and hypopharynx
2. Labial groove and hypopharynx
3. Right and left mandibles
4. Labella and pseudotrachea
Labial groove and hypopharynx
1. Absence of spiracles
2. Presence of piercing and sucking mouth parts
3. Absence of pectin
4. Absence of respiratory siphon
Absence of respiratory siphon
1. Lapping up sugar crystals
2. Chewing sugar crystals and ingesting
3. Dissolving sugar in saliva and sucking it
4. Sucking sugar grain through pseudotrabeculae
Dissolving sugar in saliva and sucking it
1. Incubation
2. Instar
3. Stadium
4. Ecdysis
Stadium