Ultimately, the American lobster has a bilaterally symmetrical nervous system. There are ganglia on each segment of the body, each made up of a paired hemi-ganglia. The ganglia of neighboring segments are linked by connectives, while the hemi-ganglia are connected by commissures. Overall, the structure of this nervous system appears as a ladder-like chain consisting of a brain, two connectives, and a ventral nerve cord. Because lobsters lack a cerebral cortex, they rely on this complex nervous system to translate pain impulses into the sensation of pain
The kingdom Animalia has a broad variety of members, such as the earthworm, the lion, and the jellyfish, who belong to different classes and are, therefore, placed all over the spectrum regarding complexity. By comparing the various body systems of these classes, it can be concluded that the Mammalia class is the most advanced. The earthworm, which is a member of the Clitellata class, is very primitive in regards to its respiratory system. The earthworm does not have a specialized system for respiration, but rather relies on diffusion to absorb oxygen. It does so by keeping its outer layer of skin moist so the oxygen can pass through easily.
Interesting Facts about the Naked Mole Rat The naked mole rat is one of the most interesting animals and even though many will find it looking awkward and ugly, however they are quite fascinating. Although known as the naked mole rat, it is neither a rat nor is it a mole. It is more closely associated to guinea pigs and porcupines as compared to rats and moles. They are called naked because they have close to no hair on their bodies and therefore appear to be naked considering other animals have fur. The little hair they have is in the form of whiskers and little hairs on their tails and in between their toes which helps them to feel their way underground and sense their environment.
The anterior end of the earthworm, frogs, and fetal frog is the head. The forelegs of the frog and fetal pig are also considered a part of the anterior end. The posterior end of the earthworm is its tail while the hind legs are considered a part of the posterior end of the frog and fetal pig. - The purpose of pining these specific part of the organism to the dissecting tray is to allow the organism’s body to stay in place during the process of dissection. It also provides a clearer view when observing the organism internal
Pygmy goats tend to be kept as pets primarily, though also work well as milk producers and working animals. The pygmy goat is quite hardy, an asset in a wide variety of settings, and can adapt to just about every climate. These goats are pretty much just wacky animals, they like jumping on random surfaces and usually have a good amount of energy. They also need companions, which means if you buy one, you need to buy a second one. Altogether, the pygmy goat makes a great pet.
The teeth of a frog are also suited to what the frog eats. The teeth help the frog hold on to the prey to stop the prey from escaping. The respiratory system of an earthworm matches it habitat because the worm breathes through its skin. This is important because the air dissolves on the mucus of their skin so the whole worm needs to dry out for the worm to suffocate instead of just the mouth. The frog breathes through its skin and also has small lungs so the frog can breathe in water and on land.
The ironic lesson that is learned from reading The Metamorphosis is that Gregor Samsa experiences a metamorphosis in the bodily sense only; theoretically Gregor had always been a bug and becoming one bodily has no consequence on his pleasure of life. After understanding that he is no longer human, Gregor 's thought developments experience no alteration. Out of all the things Gregor could revolution into, he alterations into a creature. One cannot help but draw counterparts between the Gregor 's life and an insect 's life. Most bugs, especially ants and bees, have some sort of labor force that deliver for the rest of the group.
They are even similar to their cousin, the skunks, that spray a “musk” from two glands under their tail. However the “musk” doesn’t stink, in fact it smells sweet! River otters live in a very broad range dwelling in most parts of the United States and Canada, or pretty much anywhere there is a body water, hence its name. The river otter spends most of its life in the water and doesn’t go on land very often,
White Cloud Mountain Minnow, Tanichthys albonubes: Good for Small Unheated Aquariums and Large Bowls White cloud mountain minnows prefer lower temperatures than most tropical fish and for this reason they are often kept in unheated aquaria. Their natural temperatures are 64-71F. They are very small fish, staying under two inches in length. However, they do school so is important to provide enough space for at least a couple of fish, preferably more. Fortunately their small size means that two or three can be kept comfortably in a 2 or 3 gallon aquarium.
Muskrat Informative Essay Introduction There are a lot of animals in the world, some of them live on land, some live in the sky, some of them live in the water. The animal I will be talking about is the muskrat. The muskrat lives in aquatic areas like wetlands or ponds. They are important to the wetland environment because they eat vegetation and undergrowth in the water. Even though many farmers do not like the muskrat it is still important to our environment.