Vertebrates Are Chordates, From The Subphylum Vertebrata

Animals fight for survival daily, and sometimes their lives depend on their ability to adapt with their surrounding environments. Natural Selection is the process in which individuals have certain traits that allow

Some of the adaptations may include claws, behaviors, and the ability to camouflage (Biology 460). Darwin realized there was a connection with the way an organism survives and their environment. Different adaptations affect an organism 's fitness and the type of environment (Biology 460). “The difference in rates of survival and reproduction is called survival of the fittest” (Biology 460). Organisms with characteristics that are suited for the environment have the ability to survive and reproduce. However, organisms that have characteristics that are not suited for the environment have a low survival rate and have a limited number of offspring (Biology 460). Natural selection relates to the lab because only certain colored bead bugs were able to survive. The bead bugs that had an adaptation of color were able to blend in. The bead bugs that had a color that stood out were often eaten first. The bead bugs that have a color adaptation on their side had a higher survival rate and were able to reproduce and have many offspring. The bead bugs that did not have a color adaptation stood out. They had a low survival rate and had little to no to offspring. If the clear bead bug is put in the environment then it will survive the longest, because it will be able to blend in with the colors in the habitat.

There are several major trends that developed in the vertebrate group that has allowed the transition from aquatic to terrestrial life. Some of these trends are improved respiration, protective body covering, and more efficient ways to reproduce. The adaptations that have allowed the transition from aquatic to terrestrial life are: Jaws, lungs, jointed vertebrate limbs, water tight skin, amniotic egg for reproduction. In birds and mammals another adaptation that has evolved is that they are endothermic meaning they generate internal heat.

specific environments. Possible examples include the mottled coloration of a fawn that allows it to

There are many definitions of success when it comes to the evolution of living organisms: number, diversity, size, distribution, longevity, evolutionary history, generalization, specialization, even usefulness to humans. Throughout history, groups or individual species, have faced many challenges on Earth. All animals have adapted differently to the constantly altering living conditions. Some have been immensely superior to others in their ability to survive and rule all forms of life. Their complexity varies, but because of their ability to adapt, it’s what has made these species successful. Adaptation is an evolutionary process that allows animals to become superior in a particular

The animals have to defend themselves since there are so many species. Some animals adapt by using their body parts. One of the animals there are echidnas. They mainly use their spines “as a defense mechanism.” The long hairs on the echidnas are used as their spines and are made out of the same material as fingernails. Many animals have to survive different ways, such as wombats. They are “nocturnal animals.” The wombats sleep all day and at night they go out to hunt for food.

Define evolution? A slow change of something into better form. The word evolution means change, and the process of evolution reflects this definition as it applies to populations of organisms. Biological populations are groups of individuals of the same species that are sub-divided from other populations by geography and are somewhat independent of other groups. Biological evolution, then, is a change in the characteristics of a biological population that occurs over the course of generations. The changes in populations that are considered evolutionary are those that are inherited via genes. Changes that may take place in populations due only to short-term changes in their environment are not

Final Thoughts: there are many other adaptations but i could only talk about a few out of many such as their teeth or their fur or eyesight under

Mesozoic vertebrates of Texas have received less attention than Paleozoic. In the early 1900s E. C. Case collected and reported amphibians and reptiles found in Triassic sediments along the eastern edge of the High Plains, and Sankar Chatterjee of Texas Tech University has also made important discoveries there. Notable are skeletons of phytosaurs. These aquatic reptiles, up to thirty feet in length, had elongated snouts armed with thick, sharply pointed teeth. Their habits were probably much like those of modern crocodiles. Some lightly armored forms were not unlike crocodiles in appearance, except for their long, hook-nosed snouts, but some armored types of phytosaurs may have looked almost like arthropods. Through work centered at the University of Texas at Austin, parts of the Trans-Pecos region have yielded important fossils of Cretaceous reptiles, among them enormous crocodiles and the largest known pterosaur. Much of Central Texas probably contains bones of Cretaceous vertebrates, but the land is so heavily vegetated that discoveries are few. However, remains of dinosaurs, plesiosaurs, and even primitive mammals have been found and are preserved at the University of Texas and Southern Methodist University. Fossil vertebrates, especially mammals, of the middle to late Tertiary and Pleistocene ages abound in Texas. Much of the fossil history of horses, camels, rhinoceroses, and other kinds of both living and

Non-historical definitions of adaptations are more useful for modern interpretations of adaptations. Gould and Vrba’s hypothesis finally addressed the origin of the adapation and claimed “an adaptation was a trait whose “historical genesis” was due to the same selective pressure as that which currently maintains the trait.” An adaptation which no longer had a selective pressure was named an

Specifically speaking of transitions from aquatic to terrestrial life, the major evolutionary trends involve developing survival instincts and functions to survive on land. Frogs are a perfect example. After going through a number of embryonic stages, a tadpole is created. Due to their specialized organs, muscular system, and nervous system, tadpoles are able to swim. As the larva matures and goes through metamorphosis, it becomes a frog capable of both swimming and hopping.

Examples of evolution and adaptation are present in every organism on Earth. Organisms adapt and change according to their surroundings. As their surroundings change, they change, or they die. These are the basic concepts of evolution. Organisms will adapt to survive and thrive, or they will die out. The species alive today as a result have evolved and have undergone much change from their ancestors. Invertebrate species are just some examples of this in action, but if one was to look at the specific species of invertebrates and analyze their adaptations and traits, the evidence of evolution would be quite surprising. An astounding example of this in action is a little insect known as the honey bee.

All animals have adapted in different ways, with different body parts which are attuned to that animal’s habitat. These body parts which are sensitive to different stimuli act as a filter which detect and respond to stimuli, and ignore others. These body receptors interpret and convert the type of energy, whether it is light, sound, or smell, and turn it into an electrical signal to be interpreted by the central nervous system. Each animal’s physical make up is attuned to provide the greatest survival

These two animals over time have evolved in a similar environment to support speed of movement and

The course in which different kinds of living organisms are thought to have developed from earlier forms during the history of the earth is defined as Evolution. Many time organisms evolve due to environmental changes. To better understand evolution this paper will review a diagram of an organism and explain how the organism has evolved physiologically to become suited to fit its environment.