forms; then succeed to Sypris stage which settle down and metamorphose; then adult stage Ichthyoplankton- collective term for fish eggs and larvae Spawning and hatching usually are tied to temperature and food (phytoplankton) cycles Biological Pump: CO_2 sinks to bottom of the ocean to get pereserved there Major species of algal bloom: diatoms‚ dinoflagellates‚ coccolithophores‚ etc. blooms are unsteady phenomenon Bloom definition: cell #’s >10^6mL^-1 chlorophyll a concentration
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Rules of attraction: Biological and evolutionary reasons of mate choice ABSTRACT Within the past decade we have witnessed a series of new developments and an enormously growing interest in the understanding of human behaviour‚ especially when it comes to the basic principles of human mate choice. Mate preference is something which is often considered a very individual choice and appears to be influenced by cultural and economic norms. However‚ on the basis of numerous research works‚ it is
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The Biological Importance of Water In Living Organisms Water is the most important molecule in cells‚ the whole organisms and on earth‚ this is due to it’s unique physical and chemical properties. ” A water molecule‚ because of its shape‚ is a polar molecule. That is‚ it has one side that is positively charged and one side that is negatively charged”(1). A water molecule is made up of two hydrogen atoms and one oxygen atom and the bonds between these atoms are single covalent bonds. Fig 1. The
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What biological‚ psychological and social facts underlie Addiction ? Clinical health psychology can be defined as the study of psychological and behavioral processes in health and illnesses. In other words health psychology is a branch of study that examines the interrelationship between biology‚ social factors and behaviour. A health psychologist is interested to know more about the person with the disease‚ to understand the educational or socioeconomic background‚ the behaviour that may influence
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are the effects. To understand someone‚ we must pay attention to not only the psychological experiences of an individual‚ but also their biology. The Biological foundation of Psychology involves the electrical and chemical processes in the nervous system that cause us to feel‚ have fears‚ and develop thoughts. There are many biological factors that can influence psychological functioning. From the neuron to the different parts of the nervous system‚ each can impact mental processes
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reproductive technology (ART) have opened up the world to a vast array of possibilities. Scientists have developed the ability to retrieve and preserve individual gametes and embryos by way of cryopreservation‚ a technique that involves preserving biological materials at very low temperatures outside the body for years. . This field of in vitro fertilization (IVF)‚ worth $2 billion annually in the United States‚ has forced us to think about human tissue in ways never before thought possible. These
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Diffusion across Biological Membranes: A simulation Introduction Diffusion is the process by which collisions between molecules cause to spread apart. This movement is described as movement from an area of greater concentration to an area of lower concentration. Hence‚ diffusion continues until the molecules are equally distributed. This is to ensure that molecules have reached a state of equilibrium. Diffusion occurs spontaneously‚ no energy is involved. In cells‚ Diffusion occurs through
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Biological Warfare: Could Smallpox Become the Next Biological Weapon? Desmond J. Falls American Military University Abstract This Paper is a study on biological weapons. It will touch on how and why they are manufactured. There is an emphasis on smallpox and whether it could be used as a weapon of mass destruction by terrorist in the near future. A brief history on smallpox and how it was previously used as a biological weapon will be detailed‚ along with facts from the World Health Organization
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The biological approach asserts that something in our biology is the fundamental cause of dysfunctional behaviour which could be a genetic cause or a malfunction of brain structures. Although it is seen as the most common explanation for schizophrenia due to the use of drug therapy‚ it would be deterministic and reductionist to explain schizophrenia only with the biological approach since there are other numerous factors such as the ones related to the cognitive explanation or other environmental
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Essay 10: The Biological Basis of Memory How does the brain form and retain memories? This question has fascinated people from all walks of life from time immemorial. Although scientists have discovered a tremendous amount about brain function over the past century‚ the biological basis of memory largely remains a mystery. Part of the problem‚ however‚ is the nature of the question itself. This leads to a more basic question: what does the term memory really mean? In the scientific realm
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