testicles made special reproductive cells called sperm. Once these cells were made‚ they would wait to be released from the testicles. Sometimes‚ they would wait so long that they dissolved. Other times‚ they would be released from the testicles‚ make a journey through the male reproductive system‚ and leave the male’s body. When the sperm leave the penis‚ it is called ejaculation. On the day in question‚ it just so happened that the sperm got to be released from the body. First‚ the
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1.|This structure protects and regulates the temperature of the testes| A)|Dartos muscle| B)|Cremaster muscle| C)|Tunica albuginea| D)|Scrotum| E)|Tunica vaginalis| Ans:|D| |Link to: 25.1 The scrotum| 2.|This structure is the site of sperm production.| A)|Vas deferens| B)|Seminiferous tubules| C)|Albuginea| D)|Epididymis| E)|Raphe| Ans:|B| |Link to: 25.1 The scrotum| 3.|How many seminiferous tubules are found in the lobules?| A)|1-3| B)|50-100| C)|200-300| D)|500 or
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EGGS Eggs are laid by females of many different species‚ including birds‚ reptiles‚ amphibians‚ and fish‚ and have been eaten by mankind for thousands of years.[1] Bird and reptile eggs consist of a protective eggshell‚ albumen (egg white)‚ and vitellus (egg yolk)‚ contained within various thin membranes. Popular choices for egg consumption are chicken‚ duck‚ quail‚ roe‚ and caviar‚ but the egg most often consumed by humans is the chicken egg‚ by a wide margin. Egg yolks and whole eggs store
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The Great Sperm Race This documentary retraces the journey of conception scaled up to human size‚ from the sperm production to the fertilization of the egg. There are over 250 million human sperm cells in the testicles waiting for the muscle contractions to expel them through the urethra (ejaculation)‚ but only a few thousands will enter the fallopian tubes‚ and only one will get to fertilize the egg in the woman’s body. In the documentary‚ Dr. Allan Pacey compares the excursion of sperm as a war
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Understand the causes of infection Outcome 1 1. Identify the differences between Bacteria‚ Viruses‚ Fungi and Parasites A. Bacteria. A bacterium is a living thing made up of a single cell (unlike fungi that are multi celled). They are not plants or animals. Because they are single celled they very small‚ however they have a fast multiplication rate which leads to normally millions of them together. B. Viruses. Viruses are small (too small to be seen under a light microscope)‚ and infectious‚ they
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DEFINITION OF EGGS A structure which the females of certain animal species lay as a means of reproduction‚ it contains a fertilized zygote and nutrition in the form of yolk for the developing offspring. Sometimes it contains other substances (e.g.‚ the white of a hen ’s egg)‚ sometimes surrounded by a protective outer shell. Animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes especially the thin-shelled reproductive body laid by female
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Eggs are laid by female animals of many different species‚ including birds‚ reptiles‚ amphibians‚ and fish‚ and have been eaten by humans for thousands of years.[1] Bird and reptile eggs consist of a protective eggshell‚ albumen (egg white)‚ and vitellus (egg yolk)‚ contained within various thin membranes. Popular choices for egg consumption are chicken‚ duck‚ quail‚ roe‚ and caviar‚ but the egg most often consumed by humans is the chicken egg. Bird eggs have been valuable foodstuffs since prehistory
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PLEASE BE ADVISED that you cannot directly quote this document and pass it along as your own work-that would be plagiarism. However‚ you may use this to help you formulate your own response! Read the scenario and answer the questions following it. Jill and Joe have been in a relationship for four months. Their time together mostly revolves around sports and enjoying time with friends. They are very much attracted to each other and have had an active sex life from the first month of their relationship
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Sperm Sexing In Cattle Sperm sexing is an area of bovine reproduction technology which is utilised to improve and increase farm productivity by taking advantage of the difference in the value of males and females in the dairy and beef industry. It is a useful and accurate application in which the desired X- or Y- bearing chromosome is sorted and stored in a straw for later use. Selection of the desired sex is a potential determining factor to increase the genetic progress and farmer profitability
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EXPLORING THE EGG CELL By: Christina Vu SNC2D3 Mr.Ram FUNCTION OF THE EGG CELL: The egg cell is the female gamete used for sexual reproduction. The egg cell is responsible for providing half of the genetic material required for reproduction. When the egg cell joins with the sperm cell.... The egg cell is large and bulky structure which allows the sperm cell to get in easily. WHAT ORGANELLES DOES AN EGG CELL HAVE AND THEIR FUNCTION? Mitochondria: Produces energy for the cell by a process
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