ARACHNIDS
Bilal, Aamna, and Fatima
WHAT ARE ARACHNIDS?
Arachnids are invertebrates.
● They are multicellular
● They are heterotrophic
● Examples include: spiders,Scorpions and ticks
The Body of an ARACHNID
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Body divided into 2 parts cephalothorax (head) and abdomen
Have 4 pairs of legs
They don’t have wings or antennae
They have simple eyes known as ocelli
How do arachnids perform the 7 characteristics of life?
Movemement: Uniform
Reproduction
Sensitivity: Ocelli
Growth: shedding (molting)
Respiration: Certain organs
Excretion: Malpighian tubes
Nutrition: Heterotrophic
What defines an arachnid?
Even though these organisms
look different they still have
many things in common that
make them Arachnids such as:
Exoskeleton
Segmented
body
Jointed
legs
That's all folks!
Any Questions?