Annelids: I learned that the phylum Annelids can consist of many creatures such as earthworms, leeches, and scale worms can adapt to a variety of environments. Annelids’ bodies are divided into segments which are seen as rings by the naked eye. They have muscles which help them move by contracting their longitudinal and circular muscles. When Annelids take in food, the food particles travel through one end of the body and are excreted out the other side. The video enhanced my understanding about
the mesenchymal cells will no long replicate within. Certain mesenchymal cells will offset into osteoblasts, which line up around the surface of a spicule (bony matrix) and secrete osteoid increasing its size. Once trapped within the bone matrix osteoid transform into osteocyte that occupies a chamber called a lacuna. As this growth continues the spicules become trabeculae. With the continuing growth, trabeculae become interconnected and woven bone is then formed. This network of trabeculae can also
cavity or a series of branching chambers, through which water circulates during filter feeding. o No tissue or organs. One of the classes in this phylum is Class Hexactinellida. The general characteristic of this class are the spicules composed of silica and six rayed, spicules often fused into an intricate lattice, cup or vase shaped, sycon... ... middle of paper ... ...eviana. 5. Domain: Eukaryota Kingdom: Animalia Phylum: Nematoda Phylum Nematoda are the roundworms which is one of the most
Bermuda and the Bahamas to the coasts of the central and south America. It is referred to as a frogfish because of its similar characteristics compared to those of a frog. The Frogfish has really thick skin and highly modified scales called dermal spicules. It is round and short, generally growing up to 11cm. Since one of their main purposes is to prey for food, they rarely use their fins to swim and instead, they have fins that act as feet which help them walk across the ocean. It has very small eyes
Compact bone matrix has concentric lamellae, which resemble the layers of an onion and surround a haversian canal. The layers are connected by canaliculi. Spongy bone contains spicules (rods or spines) and trabeculae (thin plates). Marrow is contained within the medullary cavity and is a soft tissue. Skull bones and much of the clavicle are flat bones produced by intramembranous ossification, a process by which a membrane of soft
Weather is always on the run and changing. Some factors includes heat, air pressure, wind and moisture. Sometimes weather can change and that can change your days plans. If it's hot, you might want to go swimming; but if it's raining you might want to stay inside. Earth get a constant stream of energy and heat from the sun. Earth also gives out energy, it's a process that also cools the planet down. The Earth is tilted, which means that the sun creates differences in the global distribution, that's
As time progresses, animals have become bigger and display more of a complex body. In some cases, this is not always true. The Poriferas and Cnidarians do not have a difficult structure like the Platyhelminthes. The body structures can determine a lot about how these animals survive in their environment, and it is important that their structure can manage their distribution of gases, and obtain food and waste. These facts and information will show proof of the many characteristics and bodily functions
The liver converts the excessive fructose into fat after using up the needed amount of carbohydrates from sugar and the excessive fat is stored in liver, body cells, and pushed out into the blood, which causes a fatty or dysfunctional liver, obesity and related diseases, and high blood pressure along with cardiovascular diseases such as heart attack and stroke (Cohen; Goldwert). Generally, dietary fat has been believed to be the culprit for causing obesity. In the 1980s, scientists blamed dietary
oldest Cambrian strata and that the strata actually dated from the Precambrian era. Several thousand specimens have since been collected in the Ediacara Hills. All the fossils collected were soft-bodied animals and their tissues were strengthened by spicules-needles of calcium carbonate that functioned as their support. The Ediacaran organisms were marine animals, some crawled, some were attached to the sea floor and others would swim or just freely float. Their impressions were molded in the moving
Life consists of many different eras and stages where life developed and evolved. In fact, life as we know would not exist if we had not evolved over many time epochs. Through numerous mass extinctions, life has persevered. While life progressed in all the different eras, the most important ones were the Paleozoic and Cambrian Eras. 541 million years ago, the most important revolutionary event in the history of life occurred. This event, later named the Cambrian Explosion, began in the Paleozoic
Asexual and Sexual Reproduction in Soft Corals The battle between sexual and asexual reproduction is a competition that has been ongoing for millions of years. Somewhere along the way due to its higher level of genetic variation, sexual reproduction was able to overcome the two fold advantage of asexual reproduction, and now dominates reproduction in organisms. However, some types of organisms such as worms and corals have acquired the ability to reproduce both sexually and asexually. The
Retinitis pigmentosa is a genetic disorder that causes blindness in the people that are affected by it. I chose retinitis pigmentosa because my grandmother has this genetic disorder. The disorder is very costly on those who have it. The disorder has robbed my grandmother of the life she wanted. She is no longer able to do the things she once was. She is legally blind, cannot drive, and has trouble getting around crowded areas. Retinitis pigmentosa was discovered by Doctor Donders in 1857. Retinitis
The agglutinated tests formed by the xenophyophores are usually consisted of foreign particles, which included various mineral grains, spicule fragments from the sponges, as well as the radiolarian and foraminiferan tests (Hayward et al., n.d.). As reported by Hayward et al. (n.d.), the ability of xenophyophores to grow into large size (ranging from few mm to 20cm) is largely due to the
chromosphere is hotter than the photosphere and can range anywhere from 6,273 degrees Kelvin to 20,273 degrees Kelvin. At these high temperatures hydrogen emits a reddish color, which can clearly be seen in a prominence. The chromosphere contains spicules, which are flame like extensions of the chromosphere into the corona. The corona has a milky white glow during ... ... middle of paper ... ... the speed of light! The sun has many mysteries that we still can not yet explain but it is still fascinating
INTRODUCTION Sea cucumbers from class of Holothuroidea are a group of echinoderms that include about 1,250 known living species. It is a unique creature due to the existence of endoskeleton or internal skeleton that consists of tiny ossicles or spicules, small particles of calcium carbonate embedded in the body wall. Mostly of them are indeed shaped like soft-bodied cucumbers. Generally, sea cucumbers can grow to the lengths of between 4 to 12 inches but there are also few species that are smaller
Coral reefs are one of the main sources of oxygen on the planet, and they produce half of the oxygen in the whole world. Corals are photosynthesizing organisms, meaning they use sunlight to convert carbon dioxide and water into glucose and oxygen. Without coral reefs, oxygen would be limited and humans could not survive on this planet for very long. Coral reefs are always found underwater, and they primarily thrive in areas near the equator. They require temperatures between 20 and 28 degrees Celsius
INTRODUCTION: The term “breast cancer” refers to a malignant tumor that has developed from cells in the breast. Usually breast cancer either begins in the cells of the lobules, which are the milk-producing glands, or the ducts, the passages that drain milk from the lobules to the nipple. Less commonly, breast cancer can begin in the stromal tissues, which include the fatty and fibrous connective tissues of the breast. In India, 144,937 women were newly detected with breast cancer and 70,218 women