PHYLUM ARTHROPODA
There are over one million species of Arthropds and they make up 75% of all of the world's organisms. Arthropods have variety in habitats because differents species live in air, water, and land. Arthropods have an exokeleton fromed of chitin and proteins. They have segmented bodies and different patterns of segment fusion that make up various parts of the body. The phylum takes its name from its jointed appendages.
There are over one million species of Arthropds and they make up 75% of all of the world's organisms. Arthropods have variety in habitats because differents species live in air, water, and land. Arthropods have an exokeleton fromed of chitin and proteins. They have segmented bodies and different patterns of segment fusion that make up various parts of the body. The phylum takes its name from its jointed appendages.
PAGURUS BERINGANUS (Bering Hermit) The Bering Hermit has an open circulatory system. This circulatory system is composed of vessels that pump the Bering Hermit's blood into the body cavities. The main body, where the organs are, is where the open circulatory system is active. However, the Bering Hermit does not have a heart
LATRODECTUS MACTANS (Southern Black Widow)
Has an open circulatory system that contains a heart. The organs of the Southern Black Widow are surrounded by blood. The nutrients and gasses needed are diffused into organ cells. Wastes are diffused back into the blood and then taken to the trachea for excretion
Has an open circulatory system that contains a heart. The organs of the Southern Black Widow are surrounded by blood. The nutrients and gasses needed are diffused into organ cells. Wastes are diffused back into the blood and then taken to the trachea for excretion
HESPEROTETTIX SPECIOSUS (Grass- Green Grasshopper)
The Grass- Green Grasshopper has an open circulatory system. The blood is known as hemolyph because circulation takes place in the open cavity of the grasshoppper which is called the hemocoel. Tubular hearts pump hemolyph into the hemocoel where the exchanging of materials take place. The hemocoel is divided into chambers known as sinuses. Special contractions of the body muscles eventually bring the hemolymph back to the dorsal sinus which surrounds the hearts
The Grass- Green Grasshopper has an open circulatory system. The blood is known as hemolyph because circulation takes place in the open cavity of the grasshoppper which is called the hemocoel. Tubular hearts pump hemolyph into the hemocoel where the exchanging of materials take place. The hemocoel is divided into chambers known as sinuses. Special contractions of the body muscles eventually bring the hemolymph back to the dorsal sinus which surrounds the hearts