METAMORPHOSIS It is the change in growth and
- Slides: 31
METAMORPHOSIS It is the change in growth and development of an insect undergoes during its life cycle from birth to maturity
There are four basic types of metamorphosis in insects. • No metamorphosis • Gradual metamorphosis (Paurometabola) • Incomplete metamorphosis ( hemimetaboa) • Complete metamorphosis
Ametabola (No metamorphosis) e. g. Silver fish
Life stages Egg young one adult
It is most primitive type of metamorphosis. The hatching insect resembles the adult in all respects except for the size.
Hemimetabola (Incomplete metamorphosis) e. g. Dragonfly, damselfly and mayfly
Life stages Egg naiad adult
The young ones are aquatic and are called naiads They are different from adults They breath by means of tracheal gills The lower lip is called mask, which is hinged and provided with hooks for capturing prey Their habit and habitat vary. After final moult, the insects have fully developed wings suited for aerial life
Paurometabola (Gradual metamorphosis) e. g. Cockroach
Life stages Egg nymph adult
The young ones are called nymphs They are terrestrial They resemble the adults in general body form Their compound eyes and mouth parts are similar to that of adults
Both nymphs and adults share the same habitat They lack wings and external genitalia Wing buds externally appear in later instars The genitalia development is gradual Later instar nymphs closely resemble the adult with successive moults
Holometabola (Complete metamorphosis) e. g. Butterfly and moth
larva pupa Egg adult
Majority of insects undergo complete metamorphosis Larva of butterfly is called caterpillar Larva differs greatly in form from adult. Compound eyes are absent in larva Lateral ocelli or stemmata are the visual organs.
Their mouth parts and food habit differ from adults Wing bud development is internal When the larval growth is completed, it is followed by a period of in activity (prepupa) and transforms into pupa In the pupal stage, the larval tissues disintegrate and adult organs are built up
Hypermetamorphosis Blister beetle
Triangulin Pupa Grub Life stages Egg adult
Common in hemi and holometabolous insects More than one larval stage is common
- Complete vs incomplete metamorphosis
- What is plant growth analysis
- Ground tissue
- Primary growth and secondary growth in plants
- Chapter 35 plant structure growth and development
- Carothers equation
- Geometric growth vs exponential growth
- Neoclassical growth theory vs. endogenous growth theory
- Difference between organic and inorganic growth
- The metamorphosis symbols
- Complete and incomplete metamorphosis
- Incomplete metamorphosis frog
- Complete vs incomplete metamorphosis
- What is physical change and chemical change
- Absolute change and relative change formula
- Whats the difference between a chemical and physical change
- Supply and demand curve shifts
- Examples of physical vs chemical changes
- Rocks change due to temperature and pressure change
- Physical change vs chemical change venn diagram
- Second order change
- Hình ảnh bộ gõ cơ thể búng tay
- Bổ thể
- Tỉ lệ cơ thể trẻ em
- Gấu đi như thế nào
- Chụp tư thế worms-breton
- Chúa yêu trần thế alleluia
- Môn thể thao bắt đầu bằng chữ đua
- Thế nào là hệ số cao nhất
- Các châu lục và đại dương trên thế giới
- Công của trọng lực