Circulatory system benchmark
Today Caylin, Natalie, and I will be taking you on an adventure through the circulatory systems of four separates animals being the Frog, Earthworm, Cat, and lastly the Human
|
Today Caylin, Natalie, and I will be taking you on an adventure through the circulatory systems of four separates animals being the Frog, Earthworm, Cat, and lastly the Human
|
The earthworm has a closed circulatory system and circulates blood exclusively through the vessels. The 3 main vessels are aortic arches, dorsal blood vessels, and central blood vessels. The aortic arches are responsible for pumping blood into the dorsal and ventral blood vessels. Now the dorsal blood vessels and the ventral blood vessels work in a tandem. With the dorsal blood vessels taking the blood towards the front end of the worm while the ventral takes it to the backside of the worm. Now some selective predators that have changed the earthworm are predators, changes in the weather, and the surrounding soil.
|
The frog has 3 chambers they have two atria and a single ventricle. The right atria receives deoxygenated blood from the blood vessels. The left atria receives the oxygenated blood for, the lungs and the skin of the frog. While the Ventricle contracts and blood for, the left atrium is sent into the carotid arteries taking blood to the head. Now changes of a frog have been due to being hunted down by predators and the changes in the surrounding weather.
|
Systems/ Features to be compared |
Earthworm (Lumbricus terrestris) |
Frog (Rana pipiens) |
Human (Homo sapien) |
Organism of choice: Cat (Felis cactus) |
Phylum |
Annelida |
Chordata |
Chordate |
Chordate |
Habitat |
They live in rainy forest areas. |
Urban areas: ponds, swamps, marshes |
All around the world. |
All around the world. |
External adaptations |
Had bristly hairs on each segment of its body that help it move through the soil. They have three main vessels to flow blood through the worm:
|
Strong hind legs to jump high They have three chambers:
|
Humans are constantly evolving and developing new features.
They have a four chambered heart:
|
Very well photoreceptors in eyes enabling them to see well in the dark. They have a network of arteries, veins, and a spleen.
|