The kingdom Animalia has a broad variety of members, such as the earthworm, the lion, and the jellyfish, who belong to different classes and are, therefore, placed all over the spectrum regarding complexity. By comparing the various body systems of these classes, it can be concluded that the Mammalia class is the most advanced.
The earthworm, which is a member of the Clitellata class, is very primitive in regards to its respiratory system. The earthworm does not have a specialized system for respiration, but rather relies on diffusion to absorb oxygen. It does so by keeping its outer layer of skin moist so the oxygen can pass through easily. The jellyfish, a member of the Scyphozoa class, acts similarly and absorbs oxygen easily through its skin. This method, used by both the earthworms and jellyfish, gets oxygen into the body but isn’t always the most efficient way. The lion, a mammal, has a more advanced way of respiration and has an entire
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The lion has internal, sexual reproduction where the male injects sperm into the female in order to fertilize her eggs. This system helps the lions reproduce the best they can in their natural environments and allows the mother to protect her children while they are developing inside her.The earthworm is a hermaphrodite, which means that it contains both male and female reproductive organs. However, two mates are typically required in order to produce offspring. The two earthworms line up next to each other and exchange sperm, and then a cocoon slides off of each one to envelop the eggs and the new sperm. Jellyfish have external reproduction, where they release the egg and the sperm into the water to meet each other. As they mature the fertilized eggs reproduce asexually by cloning themselves. The methods used by the earthworms and jellyfish both offer an opportunity for predators to eat the offspring before they can
Riversleigh Fossil Site, Australia Geological History Riversleigh covers an area of approximately 80 square kilometres and is located 250 km north-west of Mt Isa. Riversleigh is Australia’s most famous fossil site and fossils were first discovered in the area in 1901. The fossils document the evolution and changes of Australia's terrestrial fauna and ecosystems.
Along with growth and survival, reproduction is one of the primary things that organisms do. Reproduction is the process by which new organisms are produced from existing organisms (Barlow, 2014). Reproduction is not only important for the survival of an individual but the survival of every population
The organism (earthworm, frogs, or fetal pig) should be taken from a preserving chemical as it prevents the organism’s organs from rotting. 2. Lay the organism (earthworm, frogs, or fetal pig) on a dissection tray with its ventral side up. Garbage bag is sometimes required to prevent any internal fluids from splashing onto the surface. 3.
Organelles as organism is from The Lives of a cell authored by Lewis Thomas. Thomas uses a unique writing style that is very recognizable and different from the others. This helps us to appreciate our diversity as human beings demonstrated by our abilities to write differently. As a reader one is able to form an image of who Thomas is by how he expresses his feelings and attitudes. When this text was written a lot of people, mostly scientists, thought and had knowledge of different things than they do now.
Females invest more and make few large, expensive eggs. For example, when a male honeybee reaches his climax, he explodes, his genitals ripped from his body with a loud snap. In Chapter 2 of the expense is damnable, almost all individuals of C. Elegans are female hermaphrodites, and a small minority, around one in a thousand, are certain true males, Based on XO sex alles (Hermaphrodites have XX) this would conclude that when self-inseminated, a common worm would lay birth to 300 eggs. In Chapter 3 Fruits of knowledge, this chapter shows the main importance of what are the important female roles when it comes to sexual reproduction. Females in many other species insist on trading sex for food, but in this situation, in species where females swap sex for food, loose females typically eat better and have more offspring.
It is green, with seven white stripes. The Tobacco Hornworm has a red horn on its behind. It has multiple small orange spots on its side, known are spiracles, which is what the insect breathes out of. During what is known as the Tobacco Hornworms “wandering phase” the presence of the insect’s aorta, or its heart, is located at the back of the insect and is seen pumping blood. Why is this organism studied?
That includes the fish, zooplankton, worms, shellfish and bacteria. As
After the food particles travel down the digestive tract, the waste gets released through the anus, which is “located on the ventral surface of the terminal appendage. The first and second pairs of legs are used in the organisms' filter feeding, ensuring that particles too large to handle are kept out while the other sets of legs create the stream of water rushing into the organism,” (Daphnia). 8. Describe the type of nervous
He states that these are the animals that have the babies and keep the population going. Many animals do not survive their childhood and die before
Since these animals are semi-aquatic and spend most of their time near water or swimming in it, they have quite tough and waterproof skin to accommodate this lifestyle. There are also some other adaptations this animal has for swimming, such as the ability to hold their breath underwater for up to 5 minutes at time, and their eyes, ears, and nostrils are all located near the top of their head so they can stay submerged and almost completely hidden in the water, much like a hippo does. They are very
There is only one cell which is able to survive in total of four cell which then develops into a female gametophyte. The pollination occurs in female gametophyte. Fertilization occurs after successful pollination in which one sperm cell will meet with the egg and will make a diploid embryo which will be surrounded by seed coat of tissue from the parent
The mechanical philosophy of the Scientific Revolution was a contrasting philosophy of nature to Aristotelianism. This is due to the fact that mechanical philosophies held that nature acts like a machine rather than, as Aristotle believed, a living organism. However, mechanical philosophy did not wholly reject the ancient beliefs, due to the fact that seventeenth century philosophies were based off of an ancient mechanism. This ancient mechanism argued that there existed imperceptible particles.
Swimming, looking harmless. Then it’s too late your hurt. You get out of the ocean wounded by what seems to be a jellyfish. “Why!” you scream.
Centipedes have a system of breathing, they breath with tubes ranges from the spiracles throughout the body. They have the extrudable external gills between most of their legs which enlarge breathing surface of the animal like in other animals living in water. Centipedes appear smooth and shiny. Centipedes have hairs all over the body which are sensitive to touch and vibrations, this hair helps them to sense their environments. Reproduction and life cycle of the
The fertilization may be internal or external. It depends on organism and its environment in which that animal live. In external fertilization many invertebrates simply release their gametes into water in which they live and allow them to fertilize (e.g. sponges and corals), while in some other invertebrates utilize internal fertilization to transfer sperm