Characteristics of Arthropods
- Segmented bodies
- Exoskeleton made of chitin
- Jointed appendages
- Bilateral symmetry
- Open circulatory system
- Well-developed nervous system
Classification of Arthropods
Arthropods are classified into four main subphyla:
- Trilobitomorpha
- Chelicerata
- Mandibulata
- Crustacea
Importance of Arthropods
Arthropods play crucial roles in ecosystems, including pollination, decomposition, and serving as a food source for other animals. They also have economic importance as pests and as a source of food and materials for humans.
Common Arthropods
Some common examples of arthropods include:
- Insects: such as ants, bees, butterflies, and beetles
- Arachnids: such as spiders, scorpions, and ticks
- Crustaceans: such as crabs, lobsters, and shrimp
- Myriapods: such as centipedes and millipedes
Study Tips
- Use diagrams to understand the anatomy of arthropods.
- Observe arthropods in their natural habitats or in a controlled environment, such as a terrarium or aquarium.
- Research the ecological and economic roles of arthropods.
- Review the classification and diversity of arthropods to understand their evolutionary history.
[Arthropods] Related Worksheets and Study Guides:
.◂Science Worksheets and Study Guides Eighth Grade. Fossils
Study Guide
Fossils 
Activity Lesson
Fossils Worksheet/Answer key
Fossils Worksheet/Answer key
Fossils Worksheet/Answer key
Fossils Worksheet/Answer key
Fossils Vocabulary/Answer key
Fossils Vocabulary/Answer key
Fossils
Activity LessonWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
Earth/Space Science: Students will use scientific skills and processes to explain the chemical and physical interactions (i.e., natural forces and cycles, transfer of energy) of the environment, Earth, and the universe that occur over time.
Earth History: Recognize and explain that fossils found in layers of sedimentary rock provide evidence of changing life forms.
Recognize how different types of fossils are formed, such as petrified remains, imprints, molds and casts.
Recognize and explain that the fossil record of plants and animals describes changes in life forms over time.