Arthropods!
Guzman - PAP Bio - 7. Juan Torres
Objective.
Students meticulously study the arthropods provided to learn more about the external structure of the organism.
Arthropod (Arthropoda)
Arthropods are invertebrate organisms that have an exoskeleton, a segmented body, and jointed appendages. Arthropods belong to the kingdom animalia and the phylum arthopoda. Arthropods are usually know to have jointed limbs and cuticles. Arthropods are the most diverse organisms on the planet, meaning that the types of niches vary greatly, which means that there is not just one niche that is the responsibility of arthropods. Arthropods have many adaptations that improve their chance of survival. These adaptations include:
- The hard chitin exoskeleton of arthropods prevent them from drying out and gives limbs a place to attach.
- The open circulatory system of arthropods allow for nutrients to go directly to the tissue.
- Each segment of an arthropod has its own function/purpose.
- The cephalic shield is the fusion of segments that provides better defense for the body.
Habitat
Arthropods are very diversified in their distribution. Arthropods are known to live in the deep sea, coastal warters, terrestrial habitats, forests, freshwater rivers and streams, deserts and grasslands.
Predators!
The predators of arthropods vary drastically from bearded sakis to humans themselves.
Prey!
Arthropods are known to eat a variety of different food, such as plants, leaves, and organisms. Arthropods are usually classified as shredders, fungal feeders, predators, and herbivores.
Skeletal system of the Crayfish and the Grasshopper!
The skeletal system of the crayfish has many parts to it, but its main roles are to protect the body, provide support for the body, and help in movement of the body.
The skeletal system of the grasshopper includes many parts to it, such as the foregut, midgut, and hindgut. The primary function of the skeletal system in the grasshopper is to protect, support, and move.
The Skeletal system of the crayfish!
The skeletal system of the crayfish has many parts to it, but its main roles are to protect the body, provide support for the body, and help in movement of the body.
Skeletal System of the Grasshopper!
The skeletal system of the grasshopper includes many parts to it, such as the foregut, midgut, and hindgut. The primary function of the skeletal system in the grasshopper is to protect, support, and move.
Crayfish!
The crayfish depicted in the picture is one of the arthropods we studied in class and answered questions on. The external parts of the crayfish include the dorsal and ventral side, the antennae, the legs, the abdomen, th eyes, and the exoskeleton.
Me and the grasshopper
In this picture, I am holding the grasshopper, one of the arthropods that we had to observe.
Grasshopper!
This grasshopper is one of the arthropods we had to carefully observe. External parts of the grasshopper include the legs, the antennae, the wings, the mouth parts, the abdomen, the eyes, and the exoskeleton.
Test your knowledge of arthropods by taking this quiz!
FUN FACTS!
- The ancestral arthropods were the first land animals.
- The oldest arthropod to have lived on land is the Pneumodesmus newmani.
- Arthropods have segmented bodies.
- Arthropods have an exoskeleton.
- Arthropods evolved about 500 million years ago!
LISTEN TO THIS FUNNY SONG ABOUT ARTHROPODS!
"Baby, You're an Arthropod!" Song about insects, crustaceans, arachnids & more by Lucas Miller