Answer:
Step-by-step explanation:
Here are four general characteristics of Phylum Arthropoda:
Jointed appendages: Arthropods have jointed appendages that allow them to move freely. These appendages can be used for a variety of purposes, such as walking, swimming, feeding, and defense.
Exoskeleton: Arthropods have a hard exoskeleton made of chitin. The exoskeleton protects the arthropod's body and provides support for the muscles.
Segmented body: Arthropods have a segmented body. This means that their body is divided into a series of rings, or segments. Each segment can move independently of the others.
Bilateral symmetry: Arthropods have bilateral symmetry, which means that their body can be divided into two equal halves along a longitudinal plane.
In addition to these four general characteristics, arthropods also share a number of other features, such as:
Open circulatory system: Arthropods have an open circulatory system, which means that their blood flows freely through their body cavity.
Malpighian tubules: Arthropods have Malpighian tubules, which are excretory organs that remove waste products from the blood.
Compound eyes: Many arthropods have compound eyes, which are made up of many tiny lenses called ommatidia. Compound eyes allow arthropods to have a wide field of vision.
Arthropods are the most diverse phylum of animals, with over 1 million known species. They are found in all habitats, from the deep ocean to the highest mountains. Arthropods play an important role in many ecosystems, and they are also important to humans as food sources and as pests.
I hope this helps!