concepts of zoology

  Overview A stroke occurs when the blood supply to part of your brain is interrupted or reduced, preventing brain tissue from getting oxygen and nutrients. Brain cells begin to die in minutes. A stroke is a medical emergency, and prompt treatment is crucial. Early action can reduce brain damage and other complications. The good news is that many fewer Americans die of stroke now than in the past. Effective treatments can also help prevent disability from stroke. Symptoms If you or someone you're with may be having a stroke, pay particular attention to the time the symptoms began. Some treatment options are most effective when given soon after a stroke begins. Signs and symptoms of stroke include: Trouble speaking and understanding what others are saying.  You may experience confusion, slur your words or have difficulty understanding speech. Paralysis or numbness of the face, arm or leg.  You may develop sudden numbness, weakness or paralysis in your face, arm or leg. Thi...

   Functions of Emotions Hyisung Hwang and David Matsumoto Emotions play a crucial role in our lives because they have important functions. This module describes those functions, dividing the discussion into three areas: the intrapersonal, the interpersonal, and the social and cultural functions of emotions. The section on the intrapersonal functions of emotion describes the roles that emotions play within each of us individually; the section on the interpersonal functions of emotion describes the meanings of emotions to our relationships with others; and the section on the social and cultural functions of emotion describes the roles and meanings that emotions have to the maintenance and effective functioning of our societies and cultures at large. All in all we will see that emotions are a crucially important aspect of our psychological composition, having meaning and function to each of us individually, to our relationships with others in groups, and to our societies as a wh...

INTRODUCTION Open pop-up dialog box Sickle cell anemia is one of a group of disorders known as sickle cell disease. Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body. Normally, the flexible, round red blood cells move easily through blood vessels. In sickle cell anemia, the red blood cells are shaped like sickles or crescent moons. These rigid, sticky cells can get stuck in small blood vessels, which can slow or block blood flow and oxygen to parts of the body. There's no cure for most people with sickle cell anemia. But treatments can relieve pain and help prevent complications associated with the disea   Symptoms Signs and symptoms of sickle cell anemia usually appear around 5 months of age. They vary from person to person and change over time. Signs and symptoms can include: Anemia.  Sickle cells break apart easily and die, leaving you with too few red blood cells. Red bl...

  Introduction to Zoology Zoology is the branch of biology concerned with the study animals and animal kingdom. It is also known as animal biology. The study of zoology includes the interaction of animal kingdom in their ecosystems such as classification, habits, structure,  embryology, distribution, evolution, and extinct species. Zoology is the division of biology that deals with the animal kingdom. It is the scientific study related to the entire species of the  animal kingdom. An ancient Greek philosopher, Aristotle, was a first-person to broadly classify the living things in the 4th century BC. Firstly he divided living things into animals and plants and then continued with his further classifications. Later the words like biology, botany, and zoology came into existence. The study of zoology includes animals physiology,  their behavior, and their interaction with other species in their environment. It is a huge course that includes the distr...