1. Sponges are in the phylum Porifera. This group is now known to be polyphyletic, and all sponges belong to either phylum Calcarea or phylum Silicea. They are the simplest animals and lack true tissues.…
Iris has been studying an invasive population of snails. This particular snail has no local predators, so the population grows wildly. She has observed that the population follows an exponential rate of growth for fifteen years.…
A land turtle navigates through a dry patch of ground toward a slanted highway embankment full of oat beards and foxtails. Resolute and unswerving, the turtle fights its way up the slope to the highway and begins to cross the hot pavement. A speeding car swerves onto the shoulder to avoid the turtle. Moments later, a truck purposefully clips the shell of the turtle, sending it spinning to the side of the highway, landing on its back. Eventually, the turtle rights itself, crawls down the embankment, and continues on its way.…
a. A chiton is a marine mollusk in the class Polyplacophora. It has a flattened, oval shaped body with a shell of eight overlapping plates. They are usually found clinging onto rocks near water, this way they can obtain their food. Chitons eat algae, diatoms, and sometimes they will also eat bacteria. Chitons have separate sexes. The male chiton releases his sperm cells into the water, and the female chiton releases her cells individually. As a result, fertilization is external.…
24) Animals in the phyla Acoelomorpha are small flat worms less than 5 mm in length.…
In "The Chambered Nautilus" by Oliver Wendell the snail in the shell is growing up just like man does, birth to death. Many relate more to this animal than most people realize. A man grows out of clothes, socks, and shoes, much like they gradually grow out of the chambers of their shell. They move through the chambers of their shell after they have grown and are no longer comfortable in the space that now seems so small. Men like snails grow uncomfortable in their own shells. A man begins to like different things in life in separate stages of growth. As a child, they play with toys, eat, and sleep pretty much the whole day, as they grow up they begin to take responsibility for their own actions, going to school, and realizing there is more to life than just minor activities.…
The Odontodactylus Scyllarus, more colloquially referred to as the peacock mantis shrimp, gets its name from its bright peacock-like coloration, its shrimp-like size, and its mantis-like body structure. The mantis shrimp belongs to the kingdom Animalia, the phylum Arthropoda, the subphylum Crustacea, the class Malacostraca, the order Stomatopoda, the family Odontodactylidae, and the genus Odontodactylus (Wikipedia). This species, the Odontodactylus Scyllarus, belongs to a group of 400 other types of mantis shrimp whose lineage can be traced back using phylogenies 500 million years (Guenther). Typically, the size of a peacock mantis shrimp ranges from three to eighteen inches in length (Wikipedia). Because they live in sub-tropical and tropical…
Parasites – A parasite is a tiny organism that lives in or on a host (body) which they use in order to feed. Parasites can cause severe illnesses, there are 3 main types of parasites: protozoa, helminths, and ectoparasites.…
“Shells” by Cynthia Rylant is a realistic short story about a fourteen-year-old boy named Michael who learns to live life with his aunt after his parents die. In the beginning, Michael dislikes living with his aunt Esther because of how he still wants to be at his own house. Soon, he buys a hermit crab and aunt Esther tries to take interest in it to show that she cares about him. In the end, Michael is finally able to come out his own shell. In this story I want to show you how it is possible that Sluggo,the hermit crab,represents Michael.…
A 240-million-year-old reptile with a skeletal precursor of a shell has been revealed as the grandfather of all turtles. Scientists have given it the moniker Pappochelys, meaning 'grandfather turtle,' in honor of its newly found position at the forefront of the turtles' evolutionary lineage.…
Snails aren’t the fastest thing known on Earth when they move. In this hyperbole, Harper Lee describing how slow Tim Johnson is progressing. Scout compared Tim Johnson and a snail because of the snails are moving so slow like how Tim is progressing his information slowly.…
8. Others say the creature may be a type of seal, salamander, giant eel, or marine slug.…
All of the wildlife in the Everglades is totally dependent on the cycling of water. One example of this dependence is the feeding relationship between the snail kite (an endangered bird species), and the apple snail (a freshwater mollusk the size of a golf ball) (Talley). The apple snails reproduce during the rainy season. When water levels are at their highest, they lay thousands of tiny pink eggs on the stalks of marsh grasses. As the water recedes, the snail kites fly all over the Everglades looking for them. Once they find them, they swoop down and use their specialized beaks to pluck the tender snails from their shells. The water cycle and the lives of apple snails and snail kites are intertwined. Snail kites depend on the successful reproduction of apple snails, which is, in turn, affected by the amount of rainfall. Only recently have scientists been able to observe how close this relationship is. When humans drained large areas of the Everglades and converted them to agricultural lands, the population of apple snails decreased sharply. This had a dramatic effect on the snail kite population. In 2003, only 1600 snail kites remained in Florida, the bird 's only U.S. habitat (Smith). The relationship among humans, snail kites, and apple snails illustrates the delicate balance of nature in an ecosystem. When humans alter the water cycle, they directly affect the food chain.…
All snails have a different speed. So our answerer can be wrong or right. It mostly depends on the snail/snails. We tested three snails to see how far they go in one minute. We did use some tools like a ruler, a pen, a timer and a piece of paper. Each snail had a different measurement. We used the ruler to see how far they went. We also used the timer to count and we used the pen and paper to write how far they…
Scientists also discovered that there is a memory aspect to it which the snail tends to remember, Aplysia snails have few but large neurons, in fact, the biggest in the world. Researchers wanted to learn more about their memories so they…