More handpicked essays just for you.
What is the importance of photosynthesis
What is the importance of photosynthesis
Importance of photosynthesis Essay
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: What is the importance of photosynthesis
Diatoms are a unicellular phytoplankton that survives by floating in the ocean and are in the class Bacillariophyta. Diatoms are even the most common type of life in the ocean. This organism is similar to plants because of the photosynthetic qualities they posses. Diatoms use photosynthesis to absorb light, yet the pigment they possess is brown. Such aspects relate diatoms to brown algae. For this reason, scientists typically place them in the plant kingdom but others state today they are in the kingdom Protista. They are not restricted to aquatic environments, such organisms can be found all over the world even terrestrially in soil. It is estimated there are between 5,000 to 10,000 species of diatoms (Miklasv, 2010).
Diatoms have a unique characteristic. They live in an outer cell wall, or a frustrule made of silica. This frustrule is not just for the physical appearance, it provides protection and even structure. On the cell wall, there are spikes, spines and pores which allow diatoms to be classified into different classes, the centric (Centrobacillariophyceae) and the pennate (...
The Daphnia magna species in this experiment were kept and preserved in jars of suitable water that acted as small ponds. Each Daphnia Magna was transported individually using a wide-mouthed pipette to a depression slide. The stability of the Daphnia Magna on the slide was attained by using a drop of pond water that acted as a boundary of movement for the Daphnia on the depression slide, small pieces of cotton wool were also used to act as an extra boundary to stop the Daphnia Magna from swimming in circles in the pond drop it was placed in; the stability factor was important in counting the heart beat rate more accurately. The depression slide was then placed under the stereomicroscope, over a cooling chamber that was used to slow down the
ImageText BoxImageOne of the biggest threats to the environment of Ontario is the Gypsy Moth (Lymantria dispar dispar). The species itself is native to Europe and Asia. How this affects us is by weakening trees across Ontario and North America. The first time the gypsy moth was found in Ontario was 1969. The gypsy moth can be found in southern Canada (Ontario), New Brunswick, Nova Scotia and British Columbia. It is known to weaken trees and the caterpillar form live in trees and during most outbreaks its caterpillar feces would fall from the trees to the ground or even on top of humans. The average Gypsy Caterpillar can grow 5-6 centimeters long. With five pairs of blue spots and six pairs of bright red dots on their back. The female moth are white and can fly on the other hand, the male moth are brown and can also fly. The female have a 5cm wing span but male have a 2.5cm wing span. The gypsy moth usually lives in open forests and other forests and take up at least 20% of the space. The Gypsy moth are about 4cm long, tan coloured and can be located on tree trunks, furniture, and buildings. (OFAH Invading Species Awareness Program, 2012)
Throughout time, of course, marine biologists have created methods—or “techniques” (163)—that allow such a task to become more straightforward. The method which mainly comes to mind involves close observation of the organism, and noting as much of its minor and major characteristics while attempting to identify it. By recording such details as the organism’s symmetry, general shape, colors, external appearance, internal structure, and measurement, marine scientists can refer back to identification guides to figure out what specific classification their organism fits in, or whether they have the right taxonomy in mind or not (Mertz, Garrison and Baker 163-164). Upon confirming the organism’s identity with the noted characteristics, finding extra information about it becomes much easier
Daphnia, commonly known as water fleas, are tiny crustaceans which live in water. The diameter of adult female bodies is approximately 3-5 mm. The upper skeleton is transparent, making the internal organs visible. This allows the heart rate of the Daphnia to be calculated by observing them under a microscope.
In The Oresteia, Aeschylus encourages the importance of the male role in society over that of the female. The entire trilogy can be seen as a subtle assertion of the superiority of men over women. Yet, the women create the real interest in the plays. Their characters are the incentive that makes everything occur. The characters of Clytaemnestra, Cassandra, and the goddess Athena can demonstrate this.
Cyanobacteria are one of the largest and most important groups of bacteria on the earth. Often called ‘the blue-green algae’ Cyanobacteria is in fact, not an algae at all. Algae are eukaryotic, whereas cyanobacteria, is a bacteria, and is prokaryotic. The name algae is used to refer to any aquatic organisms capable of photosynthesis, so the term is considered general, though in this case, inaccurate. Being tiny and normally unicellular, cyanobacteria grow in large colonies, making them visible to the human eye, and often dominate aquatic habitats such as shorelines. Over their 3.5 billion year reign, Cyanobacteria have helped to successfully establish the earth’s atmosphere, making it possible for human life forms to thrive and some of the oldest known fossils in the world are cyanobacteria, earning it the title of one of the great survivors of all time.
There are many non-native invasive species that have invaded the Chesapeake Bay. One type of invasive species that has recently shown up in the Bay is Didymo. Didymo is an invasive diatom (a microscopic algae) that is native to fa...
The outer layer of a reef consists of living animals, or polyps, of coral. Single-celled algae called zooxanthellae live within the coral polyps, and a skeleton containing filamentous green algae surrounds them. The photosynthetic zooxanthellae and green algae transfer food energy directly to the coral polyps, while acquiring scarce nutrients from the coral. The numerous micro habitats of coral reefs and the high biological productivity support a great diversity of other life.
Coral reefs are the most biodiverse ecosystem on the planet. There are more than 25,000 known species of organisms and countless others that have yet to be identified (Helvarg, 2000). Reefs thrive on the shallow edge of tropical seas, most often on the eastern edge of continents along warm water currents that brush the coasts. Reefs cannot live in cold waters and are limited by ocean depth and available sunlight. Coral is the foundation of the reef community, providing a three-dimensional structure where thousands of species of vertebrates and invertebrates live and feed. Some species of coral are hard, while others soft. Some are branched, yet others are compact and rounded. Coral is made up of large communities of tiny jellyfish like polyps. These polyps absorb calcium from the sea water and secrete a hard limestone skeleton. At night the polyps extend sticky, stinging tentacles from their skeletons to capture and consume small floating organisms such as zooplankton. Every coral has a two-stage life cycle: the larva, and the polyp. The larval stage is free swimming, and the polyp is stationary. Ocean currents carry the larva from the stationary parent polyp to any hard, clean, silt-free surface where, if the conditions are perfect, the larva grows into a coral forming polyp, never to move again (Levin, 1999). One of the most valuable resources for coral polyps are algae. Some live on the coral skeletons, but one type in particular, zooxanthellae, lives inside the tissue of the polyps. Zooxanthellae makes up about half the weight of the fleshy polyps and are not only a valuable food resource, but they are responsible for the brilliant colors associated with coral. When coral looses these prec...
According to NOAA phytoplankton are microscopic organisms that continuously convert sunlight and nutrients into living tissue. Phytoplankton can be harmful to the bay because they at an uncontrollable rate causing harmful algae blooms when there is an abundance of nutrients. Phytoplankton also serve as the main food source for a larger but still microscopic organism named Zooplankton. Marine Bio.org did a study on zooplnkton revealing that they are very weak swimmers making them an easy food source for any larger organsim. Zooplanktons’ main purpose serves as the main food source for small fish and
Soft corals are grouped in the phylum Cnidaria, class Anthozoa, and order Alcyonacea. Their distinguishing characteristic is that their polyps always bear eight tentacles which are on both edges fringed by rows of pinnules (Fabricius and De’ath, 2002). The common name “soft coral” comes from the fact that they have no massive external skeleton as compared to the more commonly studied hard corals.
In the fairy tale, Caporushes, retold by Flora Annie, begins with a king that has been left with his three daughters because his wife had passed away. The story begins very similar to King Lear in that both kings respectively ask their daughters who loves him the most. In the case of Caporushes, his youngest daughter responds that she loves him as much as “fresh meat loves salt.” In both stories, the youngest daughter is perceived as the more cunning and clever of the three daughters. The beginning of the stories are also similar because once the king in Caporushes interprets that his daughter does not directly profess his love for him, he ruthlessly banishes her from his kingdom, just the same way Lear did to his youngest daughter, Cordelia.
Another would be that some species of the pennate diatoms are motile, meaning they are able to propel themselves in the water column. This helps them maintain a planktonic existence because they are able to stay at the top of the water column there there is more sunlight. Then there is the siliceous frustule, it is thought to have developed because it could help protect the diatom from grazers. Another thought for the siliceous frustule is that it could help capture light energy for photosynthesis, which would help them diatom because it needs photosynthesis to live. Those are some of the morphological adaptations that diatoms have evolved to help them maintain a planktonic existence.
The site of Abydos is an outstanding example of Egyptian religious practices and culture. The site has many examples that exhibit its importance as a center for cult practices and religious beliefs in ancient Egypt. Abydos was home to great concentrations of people but it influenced many more than those that actually lived there. Abydos was never a center for political power but for a large part of the dynastic period in Egypt is was a significant area for its funerary and religious practices. Perhaps the most interesting of those influences were those surrounding Egyptian belief about the afterlife.
When plants such as seaweeds or others that grow under water, their parts are supported on all sides by hydrostatic pressure. There is not much difference in the density between plant cells and their surrounding liquid environment. Aquatic plants do not require significant structural support; their cell walls only contain polysaccharides, c...