Notes

energy
a resource is the stock of something that have the value of purpose . as the nee country become more and more industrialise they will need more and more energy.
food
the health is affecter how much food do you eat a day government 2000-2400 a day but 1.3billion people
follow undernourishment of food eating .
water
as the population will grow more people face water shortage.

by 2037 the population of the uk will rise up to 73 million people the demand of the food will increase in the fact the uk import the 40 percent of the uk total food consumer increase

all most 50 percent of the water are use in other thing to clean up because they are very important 50 percent of the following of energy depead on the 12 percent of the demist energy use
the different energy source have change in 25 years


esting for Traits Unrelated to Disease


1 Much of what we currently know about the ramifications of genetic self-knowledge comes from testing for diseases. Once disease genes were identified, it became much easier to make a molecular or cytogenetic diagnosis for many genetic conditions. Diagnostic testing supplies the technical ability to test presymptomatic, at-risk individuals and/or carriers to determine whether they will develop a specific condition. This sort of testing is a particularly attractive choice for individuals who are at risk for diseases that have available preventative measures or treatments, as well as people who might carry genes that have significant reproductive recurrence risks. Indeed, thanks to advances in single-cell diagnostics and fertilization technology, embryos can now be created in vitro; then, only those embryos that are not affected by a specific genetic illness can be selected an



2 According to a Danish study, contraceptives that use hormones, including birth control pills and intrauterine devices (IUDs), slightly increase the risk of breast cancer. But the importance of the increase is unique to each woman and depends on many factors, including: her age. her general healthd implanted in a woman's uterus. This process is referred to as preimplantation genetic diagnosis.


3 The Process of Implantation of Embryos in Primates. Implantation is a process in which a developing embryo, moving as a blastocyst through a uterus, makes contact with the uterine wall and remains attached to it until birth. ... If the zygote implants in any area besides the uterus, the result is an ectopic pregnancy.21 Mar 2013There are different methods of contraception, including: long-acting reversible contraception, such as the implant or intra uterine device (IUD) hormonal contraception, such the pill or the Depo Provera injection. barrier methods, such as condoms

4 The pituitary gland produces FSH which causes the development of a follicle in the ovary.
As the egg develops inside the follicle, the follicle produces the hormone oestrogen.
The oestrogen causes growth and repair of the lining of the uterus wall. Oestrogen inhibits FSH.
When oestrogen rises to a high enough level it causes a surge in LH from the pituitary which causes ovulation where an egg is released from the follicle (Day 14 of the cycle).
The follicle becomes the corpus luteum and this produces oestrogen and progesterone which inhibit FSH and LH production by the pituitary. This is an example of negative feedback.
Progesterone maintains the uterus lining (the thickness of the uterus wall).
If the egg has not been fertilised, the corpus luteum dies and progesterone levels drop. This causes menstruation, where the uterus lining breaks down - this is known as having a period.
Hormone
Gland
Role
FSH (follicle stimulating hormone)
Pituitary gland
Causes an egg to mature in an ovary. Stimulates the ovaries to release oestrogen.
Oestrogen
Ovaries
Stops FSH being produced (so that only one egg matures in a cycle). Repairs, thickens and maintains the uterus lining. Stimulates the pituitary gland to release LH.
LH (luteinising hormone)
Pituitary gland
Triggers ovulation (the release of a mature egg).
Progesterone
Ovaries
Maintains the lining of the uterus during the latter part of the menstrual cycle and during pregnancy.
If a woman becomes pregnant, the placenta produces progesterone. This maintains the lining of the uterus during pregnancy and means that menstruation does not happen.












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