porifera essay

Porifera This phylum consists of animals such as sponges Characteristics Symmetry Asymmetrical- No symmetry is shown in the body shape Number of tissue layers developing from embryo They do not contain tissue layers but do have specialized cells. A sponge’s body consist of three layers. Inner layer- circulates water within the body cavity Outer layer- protective layer, pores close to block off harmful substances that may approach Jelly like substance found between the inner and outer layer

Animal Phylum Evolution In this research paper, I’m going to be discussing the evolution of animals and how things have changed to make them more complex throughout history. I’m going to discuss what types of phyla there are and how their body systems work. First, I’m going to discuss is the phyla Protists. Some protists are autotrophs, a photosynthetic group of phyla referred to as the algae. Some protists are heterotrophs. Heterotrophs get their energy by consuming other organisms. Protists

today. While some invertebrates look alike, they are not closely related. Meanwhile, other organisms that don’t resemble each other, turned out to be close relatives. Examples of invertebrates in order of complexity are Porifera, Cnidarian, Echinoderm, Molluscs, Anthropods, Porifera which is also Sponges are among the simplest of animals. Sponges have only reproductive, feeding, and skeleton-building cells. They live on or attach to surfaces. Cnidarians are animals who lack complex organs. They

Question One: If an alien race landed on Earth and hunted humans, we would need many different protection methods. The five methods I think would benefit humans the most in an alien invasion would be: venom, speed, webbed feet, strong claws, and strong jaws. Venom would be very important for my protection because I would rather kill the aliens, instead of avoiding them. In order to inject venom into the aliens, humans would need to have sharper teeth. I would sneak up on an alien and bite them. This

organisation: cells, tissues, organs and organ systems. These range from being the most simple to the most complex. The cellular level of organisation includes cells, which are the smallest functioning units of an organism, performing a specific function. Porifera are diverse and composed of a loose aggregation of cells. The cell layers of these sponges are not considered to be ‘true’ tissues as there is no basement membrane or intercellular connections – the cells are relatively unspecialised. Sponges are

1) Discuss the basic body plan for organisms in phylum porifera. In your answer, be sure to also explain why sponges are considered multicellular organisms even though they do not have any tissues. You should also describe the key cell types that the sponges might possess, and explain the various modes of sponge reproduction. If poriferans possess any organs, you should also describe these organs and how they function. Finally, your answer should also include a discussion of the various taxonomic

In the single origin of neurons, comb jellies are said to the oldest in the clade coming before Porifera, Placozoa, jelly and bilateria (Bucher 2015). In the process of evolution the sponges and Placozoa lost their ability to send rapid signals and their neurons. The loss of their nervous system is still uncertain, however there could be an environmental

Comparison between Non-Cephalized Phylum Porifera and Phylum Cnidaria Kenneth Ng, A0125933E, Group A05 In the Animalia kingdom, many different phylum emerged over a long period of time due to evolution. Each phylum exhibit different characteristics which the multicellular animals have developed to adapt to the environment for survival. Examples are such as developing the ability to move from water to land and from land to water, apart from being sessile. There are also developmental structures of

impressive 97% of all animal species on Earth, surpassing its counterpart, vertebrates, by nearly 33 times in terms of population. The 7 divisions that form this queer, yet powerful union are known as phyla, and include the orders Coelenterata, Annelida, Porifera, Echinodermata, Mollusca, Arthropoda, and Platyhelminthes. While all invertebrate species share some common characteristics and behaviors, each is unique and different to its own extent. Furthermore, invertebrate paleontologists have concluded through

Glistening water, beautiful coral composed of your friendly neighbourhood porifera, but what lays beyond the cliff of coral into deep, dark waters? PhD student, Erika Raymond, and her PhD advisor, Edith Widder sent the Eye-of-the-Sea to the Bahamas to observe the unknown waters. A variety of other scientists came up with their own understandings of deep-sea life and how they differ from the creatures above the waters. One of the characteristics that caught the attention of scientists were the animals’