Chordate

According to Yamamoto and Vernier (2011), dopamine is without a doubt one of the oldest neurotransmitters acting on the central nervous system. The researchers suggest that the emergence of dopaminergic systems most likely predates the divergence of chordates during evolution, and the neurotransmitter’s common ancestry is suggested by commonalities among different species that express the same enzymes, vesicle transporters, degradation enzymes, and receptors. Since dopamine is a precursor for…

have a bilateral symmetry, a segmented body, and segmented muscles, the notochord acts like an anchor to support the animal’s large body muscles. Chordates have four appendages in the shapes of legs, arms, wings or fins. Their internal skeleton has muscles attached that allow for a greater range of movement and the development of the body size. Chordates that lack bones have muscles that work against the notochord for…

During this lab observations of the external and internal structures of seastars were examined through dissection. Most notably, seastars are creatures that are deuterostomes. First of all, deuterostomes are organisms within Echinodermata and Chordate phylum that developed anus first. The egg for echinoderms have a little quantity of yolk that allows the egg to divide in its first and second cleavage stage into four equal blastomeres; this is also known as holoblastic cleavage. Although, if the…

Basic Information: The Stenotomus chrysops, commonly known as Scup, are a heavily fished saltwater species. Despite their lean and flakey bone-filled flesh, the scup has been a part of the North American east coast diet since colonial times. In fact, the population of the scup was fished to the edge in the 1990s- but fully recovered its numbers 30-fold by 2009 thanks to seasonal restrictions. Like all other life forms on the planet, the scup is more than a fresh catch at the local fish market.…

John Fitzgerald Kennedy or JFK was born on may 26, 1917 in Brooklyn, MA; He was known as a hero. JFK went to two schools he attended Canterbury parochial school for one year and the Chordate School for four years. People admired Kennedy's personality more than his achievements. Kennedy was often sick during his childhood and often read. He soon went to Princeton, University but had to quite due to his sickness. After a while he got well and went to Harvard. He traveled in Europe and observed the…

My group did our dissections on the Frog, they belong to the Chordate phylum because of its endoskeleton, and their nerve cord that runs along the spinal cord and connects to their brains. This means that they have a central and peripheral nervous system. Back to their brains, they’re divided into three parts, the fore-brain, mid-brain and hind-brain. The fore-brain controls the frogs sense of smell (the Olfactory lobe), along with the cerebral hemispheres, and diencephalon. The mid-brain…

The Velociraptor was a speedy, meat-eating, dinosaur that was typically six-feet long, two-feet tall, and around 45 pounds. The Velociraptor is also known as one of the most bird-like dinosaurs of its time. This dinosaur likely roamed the Earth from 86 to 70 million years ago towards the end of the Cretaceous Period. In 1924, Henry Fairfield Osborn, then President of the Museum of Natural History, coined the name “Velociraptor” because of its ability to run and run fast, as well as its…

There are different types of animals that live in trees and we usually think about birds and squirrels, we don’t often think about sloths. Bradypus variegatus is known as the three toes sloth. Bradypus variegatus can be found between the eastern Honduras to the northern region of Argentina. (Redford and Eisenberg 50). The three toed sloth are slow moving animals. They weigh between 2.35kg to 4kg for an adult, and an immature sloth weigh less than one pound. Bradypus variegatus body length can…

Scinta Animal Research May 19, 2015 Snowy Owl Hi, I’m strigiform! Actually, that’s my scientific name for snowy owl, so I’m actually Larisa the Owl! I know you want to know ALL about me, so I’ll gladly fill you in on snowy owls! My phylum name is chordate. My mom could be at least 6.5 pounds and my dad could also be at least 5.5 pounds. My parents could be 25-27 inches tall. The older I get my fur will get whiter and I will have some black dots on me but it all will disappear. My habitat…

a rodent not a mammal people often get confused by its name they think it's in the kangaroo family. The kangaroo rat can jump up to nine feet, higher than any olympic high jumpers can jump that high. The kangaroo rat is in the animal kingdom and chordate phylum. The kangaroo rat has many predators for example bobcats, snakes, badgers, and your cat and dog as well. Kangaroo rats tend to live in underground burrows which is most of the time by a tree or bush. The kangaroo rat has pouche on their…