Human Biology Essays, Research Papers & Term Papers (418) essays
Human Biology essays:
DNA - The Thread of Life
... spells' out instructions for making the basic building blocks of life. DNA carries the bodies genetic code, controls the development of an embryo, is capable of duplicating itself, and is able to repair damage to itself. DNA can be manipulated to change all kinds of things. All DNA molecules ...
Human Biology
... negative feedback mechanism. The hormones synthesised by the adenohypophysis include growth hormone, (GH), thyroid stimulating hormone, (TSH), adrenocorticotrophic hormone, (ACTH), prolactin, (PRL), and gonadotrophic hormones, (FSH and LH). Growth hormone or GH promotes the growth of ...
Sperm Travel Essay - A brief essay about the journey of a sperm, the glands and hormones involved in reproduction, and how a baby is born.
... hormones are controlled by a negative feedback system. If testosterone levels are high, the production of FSH and LH are reduced. If testosterone levels are low, FSH and LH production is increased. In females the same FSH and LH hormones are produced, except in females FSH starts the development of ...
Fetal Development
... nucleus of the egg and fuses with it. Now the egg has all the genetic material that it needs to make a new human being. It now begins to move down into the uterus ... Physiology October 1, 2001 Mr. Going � Fetal development starts with the process of fertilization. It starts when the female ...
A reflection paper on cloning (anti side)
... of time. In my humble opinion, in spite of the amazing potential of the technology of cloning humans, I do not believe it could give me the freedom I need. Instead of making life simple and slow, cloning complicates things. I see the cloning of humans ...
This is what exactly goes on in your brain when you are in a funny situation or under stress...
... pituitary gland at the base of the brain. There it triggers the release of ACTH . This second hormone travels in the blood to the adrenal glands, which sit on top of each kidney, and instructs them to release a third hormone, cortisol. Together the hormones rally the body systems ...
What makes up the cardiovascular system, and describe the components.How the cardiovascular system works and the effect of exercise on the cardiovascualr system
... level. Haemoglobin is important in the blood because it acts as a fuel for your body, Haemoglobin is a very complex molecule of iron protein that is found in red blood cells. When red blood cells fill the air sacs of ...
List the enzymes needed for the digestion of carbohydrates
... of glucose units. The units must be broken apart in the process of digestion. Starch es consist of two kinds of molecules, amylose and amylopectin. Amylose is made of glucose units that join to form linear chains. Short chains of ...
The Biology of Depression
... hormones have been linked to important roles in regulating moods and emotions. Some of the neurotransmitters involved in the development of depression are serotonin, which transmits messages across synapses, dopamine which is associated with emotion based behaviors, gamma-aminobutyric acid ...
How Humans Affect the Environment
... of coal. 3.Pollution control - limiting pollution to reduce problems like global warming and acid rain. 4.Recycling - used to reduce the amount of waste produced as part of resource conservation. From burning wood for warmth to solar powered muffin warmers, humans ...