100 million animals every year suffer and die in cruel chemical‚ drug‚ food and cosmetic tests‚ biology lessons‚ medical training exercises‚ and curiosity-driven medical experiments Define and explain animal testing. Is there a need for medical research to be carried out using animal experimentation or are there alternatives to using animals in medical research? What is Animal Testing? Animal testing can also known as animal experimentation or it is also known animal research. Animal
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Animal Cell Organelles & Their Functions 1. Nucleus - The nucleus generally contains the genetic material for the cell. Because it contains the DNA and chromosomes‚ which affect the proteins that determine the activities of the cell‚ the nucleus can be considered to be the cell’s control centre. 2. Cytoplasm - The cytoplasm contains primarily water and protein material. This is where the other cell organelles reside‚ and where most of the cellular activities take place. 3. Cell Membrane - The
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Plant/Animal Comparison On this planet‚ there are many types of organisms. Many of these are plants and animals. Organisms must have certain essential systems in order to survive. However‚ how these systems uphold their structure between plants and animals is very diverse—even different animals have different structural systems‚ varying on the species quite greatly. Structural Systems The structural system of an animal is made of bones‚ quite commonly. It also may be made of cartilage‚ the material
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ANIMAL CELL MODEL PROJECT THIS IS AN INDIVIDUAL PROJECT. You will construct a 3D model of an animal cell. Your model may be edible or made from craft materials. Please do not spend a lot of money on your project. If you can’t find craft supplies in 324/325 then you will have to purchase those supplies. For those who will be using Styrofoam‚ I don’t have any of the large Styrofoam balls so you definitely will have to purchase those. Go to a dollar store first; Dollar Tree does have a craft section
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an essay on the following topic: "Discuss cultural differences as they exist in American and Vietnamese culture and suggest some ways to overcome them." CONTENT The difference of culture impacts so much to the way to living‚ the way of thinking and the way of doing business. America and Vietnam have a big difference in culture‚ religion and business. However‚ we live in a world where it is called flat world‚ where there is no restriction between countries. It requires us to integrate in order to
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Almost all plants have roots that grow into the soil to help support its life. Roots are used by the plants to take nutrients and water out of the soil and send it through the plant. They also stabilize the plant. The root is made up multiple parts starting at the bottom with the root cap‚ then the zone of cell division next is the zone of cell elongation‚ and at the top of the root is the zone of differentiation. To figure out what section of the root has the highest number of cells in mitosis we
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Submitted: JULY 22‚ 2013 Exercise No. 4 Plant and Animal Tissues I. Objectives: Plant Tissues a. Illustrate‚ describe‚ and differentiate the various types of tissues characteristic of vascular plants b. Illustrate and describe how tissues are organized in the regions of the plant organ c. Recognize variations of each of the different tissues in different organs Animal Tissues a. Illustrate‚ describe‚ and differentiate the different types of animal tissues b. Illustrate and describe
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In the early half of the 1800s‚ T. Schwann and M.J. Schleiden introduced the cell theory; the theory that individual cells make up all tissues.1 However‚ due to the lack of staining techniques at the time‚ not much was known about nervous tissue and many scientists wondered if it even conformed to the same rules followed by all the other cells in the body. Two major theories were proposed regarding the nervous system: the reticular theory by Josef van Gerlach‚ and the neuron doctrine theory.1 Eventually
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A Plant cell is complex and difficult to understand. A Plant cell is comparable to a party at a mansion. Each organelle which makes up the cell of a Plant is comparable to an aspect of a party. The membrane in a Plant cell separates the cell from the environment and regulates the molecule passage in and out of the cell. The bouncer is considered the membrane of the party. The bouncers have a list and‚ only allow certain people into the party‚ separating who is inside the party from who is
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transportation of water in plants. A.1 (1) Higher plants possess xylem which is associated with the transport of water. (2) Water absorbed by the root from the soil is transported to stem‚ branches‚ leaves and flowers. (3) The main structural components of the xylem responsible for the transport of water are tracheids and vessels. (4) As the root cells are directly in contact with soil‚they take up ions.due to this‚ a difference is created between concentration of these ions between the root and the soil
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