Mollusca

The purpose of this investigation is to test the effect of differing pH levels on the heart rate of bivalve mollusks. Mollusca can be classified by their soft bodies, “head” and “foot” regions. They also generally have hard exoskeletons that cover their bodies. This is the case with snails and, of course, clams. Bivalve mollusks have a hard outer shell and soft insides. Their hearts are located towards the center of the umbo, which extends from the terminal end of the valve. The umbo is also the

Question: Do Molluscs Show An Immune Response? The molluscs comprises of the large phylum of invertebrates known as Mollusca. They are the largest marine phylum and make up approximately 23% of all marine organisms. According to Tripp (1960), molluscs possess a very effective immune system. This immune system is extremely important as it has an immediate defense against infections and microorganisms that invade its body. There are three cellular reactions that are used during internal defense in

The Columbia River Limpet, otherwise known as the Short-faced Lanx, is endangered due to human causes. This species is endangered due to population fragmentation and isolation, dam-building, and many other human causes. In addition, habitat loss is one of the biggest problems because this organism has such specific habitat requirements. This species lives in a freshwater ecosystem and now, large populations can only be found in 4 streams. On the other hand, these human-induced problems can be remedied

Blue ringed octopus. It also has a scientific name Hapalochlaena Lunulata. In Latin that means, “Soft skinned thing with little moons”. This octopus belongs to the phylum Mollusca, class Cephalopoda, genus Hapalochlaena, family Octopodidae, kingdom Animalia and order Octopoda. With at least 50,000 living species, the phylum Mollusca is one the most diverse groups of animals. This octopus is in a class that also includes squid, cuttlefish and nautilus. The blue ringed octopus is normally a light brown

has been adopted by many researchers and animal enthusiasts has been that chameleons change color due to the expansion of small pigment-filled sacs called chromatophores. This mechanism/technic is seen in various animals such as those within the Mollusca phylum (e.g. squid, cuttlefish, octopi). This research experiment gives rise to the truth as to how

I have been fascinated by the intelligence and resourcefulness shown by octopi for the past few weeks since I went scuba diving. The main purpose of this trip was to be able to learn more about octopi in their natural habitat, as I had been given an assignment regarding the morality of consuming octopi. I was given the opportunity to fully observe the complexity of octopi in their natural habitat. I realized these animals' capabilities people fear these almost harmless animals? In the past, I truly

I think the most extraordinary organism is the Clione limacina, commonly referred to as the “Sea Angel”. The Sea Angel is in the domain Eukarya. Clione limacina is in the kingdom Animalia (Clione limacina). The phylum of the sea angel is Mollusca (Clione limacina). Gastropoda is the class of the Clione limacina (Clione limacina). The Sea Angel does not have a ranked order; it is unranked and fits in the clade Heterobranchia, Euthyneura, Euopisthobranchia, and Gymnosomata (Clione limacina). The superfamily

*[[Cyprea tigris]] *[[Dirona albolineata]] *[[Janthina communis]] ' 'Anatomy and Appearance ' ' ' 'Behaviour and Diet ' ' Diet The class Gastropoda has a diverse diet, but all species feed using some variation of radula, the feeding organ. The majority of species belonging to Gastropoda are herbivorous (Integrated Principles of Zoology, 2014). The primordial feeding behaviour involved grazing of algae from hard surfaces. The original, primitive form of radula called the rhipidoglossan is still

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

Structure of macroinvertebrates communities may change with seasons because most environmental factors change with seasons. This process can directly influence water quality parameters such as Dissolved oxygen, turbidity, conductivity, temperature, nutrients, and pH. (McCulloch, 2009).These parameters appears to have direct influence on the macroinvertebrate life cycles (Sporka et al. 2006). In other words physical and chemical parameters of a catchment will ultimately determine what breed