The blood carries oxygen from the lungs of the respiratory system to the body’s cells, and take carbon dioxide from the cells to the lungs. The tissues from the circulatory system makes up the heart and blood vessels, which are part of the muscular system. Finally, the nervous system sends signals from the brain to the heart for it to pump blood throughout the body. By studying the circulatory system, and following the rules of the levels of organization, we know that the system is made up of organs, such as the heart and blood vessels. The organs are made up of tissues working together, such as the smooth/cardiac muscle tissues and blood.
The Kermode Bear The Kermode Bear is a different kind of black bear because it has a gene that normal black bears don’t have. This bear was mentioned in a book called Touching Spirit Bear. This particular bear is a subspecies of the black bear. It has dark nose pads, white or creamy fur, brown eyes, and nearly white claws. This kind of bear is quite rare and maybe about 100 exist near British Columbia.
The journey took 62 days, and spread over 745 miles. Why it Migrates It was shown that the Hammerhead shark mainly migrates when it is following food, such as the Mahi-Mahi. Life Cycle Hammerheads are on their own from the start of birth, so much so, that when they are born, they swim away from their mothers to avoid being eaten. The oldest Hammerhead shark ever recorded was 31 years old. Summary The Hammerhead shark is a very interesting creature, which we do not know much about.
However the expected lifespan of one is about 15 years. If the largemouth bass is in captivity, they usually get to be about 11 years old. (Boschung, et al., 2004) They usually prefer to live in shallow that is no deeper than three meters. Although sometimes you may find some of them living in the deeper part of the water. The largemouth bass have the ability to hide from their prey and provide protection against their predators through the process of abundant vegetation.
These were the most numerous among the Native when the first contact with the Europeans was made. Grouping divisions are based on language differences, as well as in survival methods and technological skills. The Inupiat and the Yupik, known as the real people, continue to hunt and gather in communities. They subsist on both sea and land resources. Even to this day their lives continue to evolve around the polar bear, caribou, fish, seal, whale, and walrus.
The skeletal system of the Northern Pintail has many advantages over some of the dabbling ducks the Pintail co-exist with. The bird has hollow bones all over its body to reduce weight, in return helping with flight. On the note of flight, the hinged wing bones are some of the least dense bones
Ecology and behaviour The southern right whale (Eubalaena australis) is a medium to large baleen whale, reaching a maximum length of 17.5m. Colour patterning is variable, ranging from black to grey-brown (Harcourt et al. 2012). Distinguishing features include a rotund body with no dorsal fin and callosities (caused by colonised cyamids, small crustaceans, on keratinised skin patches) on the head (Harcourt et al. 2012).
While most Cnidarians live in the water, I have chosen one that lives only in the larval stage underwater. It is called the Velella, also known as a Sail by Wind, and it tends to float atop the water instead. The velella is different from most cnidarians in the way that it floats. It is sometimes thought of as being a mini “portuguese man-of-war,” but this description is incorrect because the “man-of-war” is actually a colony of cnidarians while the velella is a single polyp. Like most cnidarians, it has radial symmetry, which means that no matter which way you cut it in half, when looking from the top, you should get two equal pieces.
It’s believed to have been between forty to seventy feet long and evolved from the Cretolamna appendiculate. They were only alive for the short period of 16 million to 1.6 million years ago, in the Cenozoic period. They lived in warm waters and most likely preyed upon whales. Megalodon teeth were found in Africa, Australia, Europe, Japan, India, and the North and South Americas. Based on its characteristics, the Megalodon and the Great White sharks are related, but are not direct descendents.