Sharks are extraordinary creatures they are also the fiercest predators of the sea, but they weren’t always that way. Sharks have evolved in many ways to become the animal that is know today. Sharks have grown jaws and teeth like scales. Sharks used to be very small and not intimidating at all. Sharks about 370 million years ago were “four feet long and their mouth’s were on the bottom of their heads.
For this experiment, we studied how planarian worms would grow after being segmented. To begin this experiment, we filled up petri dishes half-way with spring water, this is so the planarian worms would not dehydrate and die during the two weeks we were observing them. Next, the planarian worm was picked up from its container with a pipette and then placed in a separate petri dish with some water. This took some time and I ended up having to use a pick to get the planarian worm off the inside walls of the pipette. Once the worm was in the petri dish, a razor was used to cut the worm in half, creating a “head” and “tail” segment of the worm.
The Great Hammerhead Shark has many physical attributions that make the species unique to other sharks. Perhaps its most well-known anatomical feature, the flat and t-shaped cephalophoil, aids the Great Hammerhead in catching prey. Ampullae of Lorenzini on the hammer-shaped head sense hidden prey, which especially benefits the hunting of stingrays. The variations within the cephalophoils differentiate hammerheads from each other. In addition, wide-set eyes give The Great Hammerhead shark a greater, more enhanced range of sight.
Hammerhead Sharks protect themselves by swimming away from predators and attacking their predators. The Carnivores can outswim a sea creature and they will lose where the Hammerhead went. Even if another species can go as fast as a hammerhead shark, they will still escape. The hammerhead tries to stay away from where their predator was chasing them for some time and then returns if they need to. While swimming, they have very strong senses that can tell when something is getting near them.
How much do you really know about the hammerhead shark? Most people assume a shark is a shark, but there are many different types of sharks all with their own distinct qualities. However, the nine species of hammerhead sharks are easily identified by the unique shape of their head which resembles a hammer and is the origin of their name. Hammerheads are cold-blooded mammals that can grow up to 25 feet in length and weight as much as 1000 lbs.
Survival Behaviors of a Manatee... They have small eyes but they have a very good eyesight. The manatee has a strong a big tail to have speed in the water. Cannot live in cold waters, the water temperature has to be at least 68 degrees.
Goblin Shark By: Barrett Smith Have you ever seen a lightning fast mouth eat a fish. Well that is the goblin shark, a unique fish, tertiary consumer, and a predator of the deep. The goblin shark is all of those and more. The goblin shark has many characteristics that make it unique.
If a lake is cut from the ocean and has no large fish as predators (only dragonflies), then the sticklebacks will have a better chance at surviving and reproducing because the sticklebacks will be better adapted to the environment (presence/absence of a pelvic bone) and have little to no predators. The hypothesis was supported. Before the experiment started, background knowledge was collected to better the knowledge of the lakes. Bear Paw Lake is an enclosed lake, meaning no predators could get into the lake.
Introduction: Antagonistic behaviors are those conflict behaviors that include aggressive and submissive behaviors. Antagonistic behaviors tend to occur over territoriality. Every animal is looking for the most advantageous place to live and this results in having conflicts with other animals similar to their species and their needs. Animals fight for territory for many reason including: competition for food, to avoid interruptions while mating, survival and others. Fighting becomes a result from intrusion.
The Effect of Exercise on the Cell Continuity of Betta Splendens Keerthana Arjuna Joe Gibson George Washington High School Abstract The objective of ted this experiment was to observe how exercise would affect the cell continuity of betta splendens’ muscle cells. To conduct this experiment, three fish were put under three different amounts of exercise for fourteen days. After fourteen days, the fish were euthanized and tissue samples were obtained. The tissue samples were stained with acid fuchsin.
The Cambrian explosion was a relatively short evolutionary event which occurred approximately 543 million years ago during the Cambrian period. The Cambrian explosion It is referred to as an explosion because it was during the Cambrian period where there was a mass increase of many different multicellular eukaryotic organisms. Fox Douglas, author of What Sparked the Cambrian Explosion, described the Cambrian explosion as an “evolutionary burst 540 million years ago that filled the seas with an astonishing diversity of animals”. This evolutionary event is believed to have caused the development of an immense amount of many different species whom developed below the water surface. It was during the Cambrian explosion where all but one of the