The Asteroidea class, also known as the sea stars, has many common characteristics. Firstly, all sea stars have flat, star-shaped bodies as well as a central disc with radiating arms/rays protruding out. Typically, seastars has five arms but certain species can have up to fifty arms! The size of the sea stars is not consistent through the different species therefore varies from one centimeter to three feet. The skeletal system is a key aspect for the survival of a sea stars. Sea stars have bilateral symmetry. The skeleton is made up of ossicles which helps make for flexibility yet firm enough to hold together. Their flexibility enables them to catch prey easily and sufficiently. The spine and pedicellariae is small and movable. On the upper …show more content…
They are found in almost every marine habitat whether it be in tidal pools or in the sea. They are usually found on the seafloor which is why the suckers are very important. They can stick to the ground and move along it easily. They also can adhere firmly to their prey and capture them. Their sensors help them stay alert for prey or predators. Their suctions help them survive extreme changes in environment like crashing waves or tidal waves. Their digestive system allows them to eat many different types of prey or smaller animals. The ambulacral grooves help to open shells enabling sea stars to digest …show more content…
Anjali- (genus) Asterias: They can be found near North America on either coast, usually on rocky sea bottoms. There amount of arms vary from five to forty and the size of the sea star usually ranges from ten to twenty centimeters. The lower surface is flatter than the aboral surface. The ossicles has an irregular arrangement and the mouth is in the center of the oral surface. It has a very unique water vascular system which has a ring around its mouth.
Anjali- (species) Asterias forbesi: Asterias forbesi usually have five arms which are around six centimeters. Their sizes ranges around fifteen centimeters. Majority sexually reproduce by producing larvae.They can sense their prey through chemoreception. They are mainly found on the east coast of North America. There are many rows of tube feet and the grooves run down the center of each arm on the oral surface. Their madreporite, usually pink, is their filter for water.
Sasha - (genus) Choriaster: The genus, Choriaster, only has one species, so all of it’s characteristics are the same as it’s one
Even though they are closely related to crustaceans, their bodies are particularly similar to crab and other sea creature with shells. The isopods have three distinct regions such as the head, thorax and abdomen (CISEO). Their characteristic as for what they look like is their claws attached to their abdomen. Also, they have a pair of antennae, simply small eyes and seven pairs of appendages connected to their segmented thoracic region.
With the back spines pointing directly upward and the pelvic spine pointing out at a perpendicular angle make it difficult for a predatory fish that catches a stickleback to swallow the stickleback. This added benefit allows the fish
Originally found in the Atlantic Ocean, the sea lampreys where first discovered in Lake Michigan in 1936. The sea lampreys can be described as jawless parasites with mouths similar to suction disks. They also have very sharp teeth which they us to attach themselves to fish in the water, allowing them to feed on their blood and body fluid for various hours or even weeks. This usually causes visible injures to the bigger fishes and kill smaller fishes. These sea lampreys contribute to the decline in the population of white fish in the great lakes.
The Striped Pyjama Squid compact and rounded appearance has inspired other people to commonly refer to it as the striped dumpling squid. It lives in sand and mud habitats of shallow coastal waters from southern Great Barrier Reef to central South Australia.
Food sources come from their nearby area of water. It attacks it’s prey by dislodging it by pushing rocks over to the bottom. Usually hunts at night time or the evening. Prey is mollusks, crayfish, minnows, insects, worms, small fish, zooplankton, but Walleyes, Allegheny River Pikes, and Gulls are the main predators of the Drum
The three sloth are vertebrates. The Three-Toed Sloth has one adaptation which is that it is so sedentary, or still and lazy, that an algae grows on its fur, making a camouflage for the sloth to hide itself with. Their hind legs are incredibly weak, but their front arms are so strong, that sloths pull themselves along the ground.
and it 's sides have spikes. Females can be from 18-19 inches from head to tail, while the males can be 14-15 inches. It’s ectothermic so that means that it can create it own body heat. The Horseshoe
Some have many colors that are in sripes or patterns that are beatifull. The queen has a mostly yellow color with a bluish tint in it the bright colors of an angel fish are very bright and beatifull and if you ever see one mabe you will be able to identify it The goblin shark In april 2015 fisher men hauled an net aboard the boat off the coast of Key West florida catching millions of shrimp but not just that, a
Topic: Great White Sharks Specific Purpose: To inform the audience about great white sharks. Thesis Statement: I am going to tell you about its habitat, its behavior, and some common misconceptions about them. Introduction: “Out there is a Perfect Engine, an Eating Machine that is a miracle of evolution – it swims and eats and makes little baby sharks, that’s all.” This is a quote from a movie you’ve probably seen called Jaws.
Australian Giant Cuttlefish are in the following taxons, being ordered largest to smallest, Animalia, Mollusca, Cephalopoda, Sepioloida,Sepiidae,Sepia, lastly Apama. Their scientific name is, Sepia apama coming from their genus and species. Sepia apama is found about 100 meters under water around the southern coasts of Australia and Tanzania, in the seagrass beds of these coastal waters. Sepia apama typically eat small like crabs organisms called, crustaceans, and small fish. Sepia apama has predators in its own environment and hides from predators in an unusual way.
These fish can be aggressive when being hunted for 3. The inside of the fish is hunted for food in parts of Africa I. As studied doing research there are many different species of fish but some are rarely known among the US culture
The organism that I have chosen is the Sea Wasp, which is a species of Box Jellyfish (Cubozoa). The Sea Wasp is classified by eight different groups within its taxonomy, which are the: domain, kingdom, phylum, class, order, family, genus, and species. The Domain of this specific organism is Eukarya, the kingdom of the organism is Animalia, the phylum of the organism is Cnidaria, the class of the organism is the Cubozoa, the order of the organism is the Chirodropida, the family of the organism is Chirodropidae, the genus of the organism is Chironex, the species name is C. fleckeri, the Scientific name of the organism is Chironex Fleckeri, and the common name of the organism is the Sea Wasp (“Chironex fleckeri Marine Stinger, Sea Wasp”). The
For the first few years of their lives they just float at sea. They are omnivores when they are young. They feed on plankton, jellyfish, crabs and, other invertebrates. As they began growing they become strictly herbivores. Where their diet strictly is seagrass and algae.
Tiger Salamander – Native Species Description: Tiger salamanders can be brown, to greenish or gray in color. They usually have brilliant yellow stripes or dots, or brown splotches over the length of their bodies, while some may have no markings at all. Range: They are found throughout most of the United States, the southern part of Canada, and eastern Mexico. Habitat: They prefer to live in deep burrows that are near ponds, lakes, or slow-moving streams.
Within the first group, Haplochrominae, there are two subgroups. Both subgroups require different environments which is something that you should consider when setting up the tank. The first one, known as Haps, consists of open water and sand dwelling species. The second subgroup is known as mbuna, which means “rockdwellers”. The Mbuna fish are smaller, and both sexes are often brightly colored, though in some species the females may be brownish overall.