Dec 31, 2010
Posted by rozaini at 8:11 PM
Dec 28, 2010
Posted by rozaini at 12:22 AM
Dec 26, 2010
Time management is a set of principles, practices, skills, tools, and systems working together to help you get more value out of your time with the aim of improving the quality of your life.
Posted by rozaini at 11:54 PM
Dec 25, 2010
- Mnemonics can be used wherever possible. don't give it up totally.
- Sometimes writing the first letters of names & amp; reading them in a nonsensical & amp; funny way can help.
- Write down the points, after reading the answers; draw pictures like parts of the plant, body parts, nerves etc. to connect to the point.,
- Write the number of points you have to learn for an answer & amp; arrange them in a sequence easy for you to remember.
- When learning objective type answers you can request a family member to ask the qns. This may look funny but mothers are a wonderful support in this.
- Divide your portions & amp; learn thoroughly before going to the next one
- Don't accumulate too much of study material.
- Prepare a time table & amp; follow it sincerely.
- Keep your goal in mind & amp; work towards it.
Like what you are doing at present.
Best of luck.
Understand what you are learning and have confidence.
Posted by rozaini at 1:11 AM
Dec 23, 2010
Posted by rozaini at 9:37 PM
Dec 22, 2010
Dec 18, 2010
Posted by rozaini at 7:09 PM
Dec 17, 2010
Immunity among teenagers (15 years and below) vaccinated with HPV is very high even after five and a half years. Free HPV vaccination programme carried out by the government for teenage students was an initiative to prevent cervical cancer. HPV is a common virus that is passed on through genital contact, most often during sex and most sexually active people will get HPV at some time in their lives, though most will never even know it and is most common among people in their late teens and early 20s. Malaysian women were at a high risk of HPV which can led to cervical cancer due to their smoking habits, diet and family history.
According to the World Health Organisation (WHO) 80 percent of women who have reached 50 years would have been affected by HPV and almost 20 percent of them would have reached a chronic stage, resulting in cervical cancer. The government would be spending RM150 million to vaccinate about 300,000 teenagers throughout the country.
Posted by rozaini at 12:57 AM
Dec 12, 2010
- You, your partner, or someone important to you have a heightened awareness of subtleties in your environment, whether it's sight, sound, touch, taste, or smell.
- You can become stressed out and upset when overwhelmed and may find it necessary to get away, maybe into a darkened room, to seek solitude, relief and comfort.
- You are very creative.
- You are very conscientious, hard working, and meticulous, but may become uncomfortable and less efficient or productive when being watched or scrutinised.
- You feel compelled to file and organise things and thoughts, also enjoy simplicity and may become overwhelmed or even immobilised by chaos, clutter, or stress.
- You are very uncomfortable when feeling things are getting out of your control.
- You get a sense of comfort and well being when around a lake, river, stream, the ocean, or even a fountain.
- You may experience mood swings, sometimes occurring almost instantly and can also be affected by other people's moods, emotions and problems.
- You have a deep, rich, inner life, are very spiritual, and may also have vivid dreams.
- You are very intuitive and you feel that you can usually sense if someone isn't telling the truth or if something else is wrong.
- You get concerned and think or worry about many things, and have also been told "you take things too personally."
- You have had the experience of "cutting people out" of your life.
- You were considered quiet, introverted, timid, or shy as a child.
Posted by rozaini at 11:02 PM
Dec 11, 2010
- in the STPM if students write in italic the scientific names, you'll get 0 mark
- students must underline separately; don't underline the whole thing
Example of a correct scientific names :
Homo sapiens for human
Oryza sativa for paddy
Nephelium lappaceum for rambutan
Order : Primates
Family : Hominidae
Genus : Homo
Species : sapiens
Posted by rozaini at 10:11 PM
Dec 6, 2010
The length from your wrist to your elbow is the same as the length of your foot.
Your heart beats 101,000 times a day. During your lifetime it will beat about 3 billion times and pump about 400 million litres (800 million pints) of blood.
It is impossible to lick your elbow. Well, for almost everyone… but a few can.
Your mouth produces 1 litre (1.8 pints) of saliva a day.
The human head contains 22 bones. More on the head and brains
On average, you breathe 23,000 times a day.
Breathing generates about 0.6g of CO2 every minute.
On average, people can hold their breath for about one minute. The world record is 21 minutes 29 seconds, by David Merlini.
On average, you speak almost 5,000 words a day – although almost 80% of speaking is self-talk (talking to yourself).
Over the last 150 years the average height of people in industrialised nations increased by 10 cm (4 in).
In the 19th century, American men were the tallest in the world, averaging 1,71 metres (5’6″). Today, the average height for American men is 1,763 m (5 feet 9-and-half inches), compared to 1,815 m (5’10″) for Swedes, and 1,843 m (5’11″) for the Dutch, the tallest Caucasians.
The tallest nation in the world is the Watusis of Burundi: 1.98 m (6 feet 6 inches) tall.
If the amount of water in your body is reduced by just 1%, you’ll feel thirsty.
It is impossible to sneeze and keep one’s eyes open at the same time.
55% of people yawn within 5 minutes of seeing someone else yawn.
A person can live without food for about a month, but only about a week without water.
You’ll drink about 75,000 litres (20,000 gallons) of water in your lifetime.
After a certain period of growth, hair becomes dormant. That means that it is attached to the hair follicle until replaced by new hair.
Hair on the head grows for between two and six years before being replaced. In the case of baldness, the dormant hair was not replaced with new hair.
Men loose about 40 hairs a day. Women loose about 70 hairs a day.
In the Middle Ages the length from the tip of the middle finger to the elbow was called an ell.
A person remains conscious for eight seconds after being decapitated.
The first successful human sex change took place in 1950 when Danish doctor Christian Hamburger operated on New Yorker George Jorgensen, who became Christine Jorgensen.
The muscle that lets your eye blink is the fastest muscle in your body. It allows you to blink 5 times a second.
On average, you blink 15 000 times a day. Women blink twice as much as men.
A typical athlete’s heart churns out 25 to 30 litres (up to 8 gallons) of blood per minute.
Unless food is mixed with saliva you cannot taste it.
The liver is the largest of the body’s internal organs. The skin is the body’s largest organ.
On average a hiccup lasts 5 minutes.
Fingernails grow nearly 4 times faster than toenails.
Your middle fingernail grows the fastest.
Your finger nails grow at 1 nanometre per second (0.000 000 001 m/s). Your hair grows at 4 nanometres per second (0.000 000 004 m/s).
It takes about 3 months for the transplanted hair to start growing again.
About 13% of people are left-handed. Up from 11% in the past.
In 1900, a person could expect to live to be 47. Today, the average life expectancy for men and women in developed countries is longer than 70 years.
A newborn baby’s head accounts for one-quarter of its weight.
King Henry I, who ruled in the England in the 12th century, standardised the yard as the distance from the thumb of his outstretched arm to his nose.
The bones in your body are not white – they range in colour from beige to light brown. The bones you see in museums are white because they have been boiled and cleaned.
Our eyes are always the same size from birth.
Every person has a unique tongue print.
If all your DNA is stretched out, it would reach to the moon 6,000 times.
Approximately two-thirds of a person’s body weight is water. Blood is 92% water. The brain is 75% water and muscles are 75% water.
The coloured part of the eye is called the iris. Behind the iris is the soft, rubbery lens which focuses the light on to a layer, called the retina, in the back of the eye. The retina contains about 125 million rods and 7 million cones. The rods pick up shades of grey and help us see in dim light. The cones work best in bright light to pick up colors.
We actually do not see with our eyes – we see with our brains. The eyes basically are the cameras of the brain.
Posted by rozaini at 11:17 PM
Can be divided into 2 groups :
i) hormones that control the changes in the ovaries - FSH and LH
ii) hormones that control the changes in the uterus - oestrogen and progesterone
secreted by - anterior pituitary gland
stimulates the development in the ovary
secreted by - anterior pituitary gland
stimulates ovulation, the development of corpus luteum
promotes the secretion of progesterone
secreted by - follicle cells of the ovary
stimulates further growth of the follicles
promotes the repair of endometrium from 12th day of the menstrual cycle, it has positive feedback action on the secretion of FSH and LH
secreted by - corpus luteum
stimulates the endometrium to become thick, folded & highly vascular (enriched with blood vessels) for the implantation of an embryo
inhibits the secretion of FSH & LH to prevent the development of Graafian follicles & ovulation
Posted by rozaini at 4:28 PM
Nov 2, 2010
Oct 31, 2010
1. Room is in a complete mess. Books and papers are laid everywhere because the study table is too small to contain the pile of paper that you were just referring to earlier on.
Posted by rozaini at 12:05 AM
Oct 24, 2010
Posted by rozaini at 11:14 PM
Oct 23, 2010
Set 1 http://www.scribd.com/doc/39957974
Set 2 http://www.scribd.com/doc/39958141
Set 3 http://www.scribd.com/doc/39958321
Posted by rozaini at 11:35 PM
Oct 10, 2010
Trial Bio Kedah
http://www.scribd.com/doc/39050365 (Paper 1)
http://www.scribd.com/doc/39050452 (Paper 2)
http://www.scribd.com/doc/39050510 (Mark scheme)
Trial Bio Pahang
http://www.scribd.com/doc/39050697 (Paper 1)
http://www.scribd.com/doc/39050836 (Paper 2)
http://www.scribd.com/doc/39050889 (Mark scheme P1)
http://www.scribd.com/doc/39050942 (Mark scheme P2)
Posted by rozaini at 11:16 PM
Sep 28, 2010
EXAM HINT - Candidates often confuse the greenhouse effect with ozone depletion. Although they have some common causes, their mechanisms and effects are very different.
Posted by rozaini at 12:21 AM
Sep 27, 2010
http://www.scribd.com/doc/38240173 (Paper 2)
http://www.scribd.com/doc/38240411 (Mark scheme P2)
http://www.scribd.com/doc/38240303 (Paper 3)
http://www.scribd.com/doc/38240565 (Mark scheme P3)
http://www.scribd.com/doc/38240731 (Paper 1)
http://www.scribd.com/doc/38240866 (Ans P1)
http://www.scribd.com/doc/38241167 (Paper 2 structure)
http://www.scribd.com/doc/38241008 (Marking scheme P2(1))
http://www.scribd.com/doc/38241332 (Paper 2 essay)
http://www.scribd.com/doc/38241420 (Marking scheme P2(2))
http://www.scribd.com/doc/38241605 (Paper 3Q1)
http://www.scribd.com/doc/38241725 (Marking scheme P3Q1)
http://www.scribd.com/doc/38241830 (Paper 3Q2)
http://www.scribd.com/doc/38241928 (Marking scheme P3Q2)
http://www.scribd.com/doc/38360129 (Paper 2)
http://www.scribd.com/doc/38360214 (Marking scheme P2)
http://www.scribd.com/doc/38360326 (Paper 3)
http://www.scribd.com/doc/38360414 (Marking scheme P3)
http://www.scribd.com/doc/36512821/Trial-Bio-SPM-SBP-2010 (P1, P2 and P3)
http://www.scribd.com/doc/39051156 (Paper 1)
http://www.scribd.com/doc/39051340 (Paper 2)
http://www.scribd.com/doc/39051611 (Mark scheme P2)
http://www.scribd.com/doc/39051446 (Paper 3)
http://www.scribd.com/doc/39051664 (Mark scheme P3)
http://www.scribd.com/doc/40008596 (Paper 1)
http://www.scribd.com/doc/40008663 (Ans P1)
http://www.scribd.com/doc/40008785 (Paper 2)
http://www.scribd.com/doc/40008861 (Ans P2)
http://www.scribd.com/doc/40008952 (Paper 3)
http://www.scribd.com/doc/40009044 (Ans P3)
http://www.scribd.com/doc/40159172 (Paper 2)
http://www.scribd.com/doc/40159327 (Paper 3)
Posted by rozaini at 11:55 PM
Sep 17, 2010
Posted by rozaini at 11:00 AM
Sep 15, 2010
It is essential that the physical and chemical processes of the body are controlled. Homeostasis is the maintenance of a stable internal environment by the regulation of these processes within acceptable limits. Organisms receive oxygen, food, water, salts and warmth from the environment and return carbon dioxide and other wastes to it. Due to homeostasis, mammals and birds have a measure of independence from the external environment, whilst still existing in equilibrium with it.
Regulation of blood concentration
The insulin-glucagon control mechanism is illustrated in Fig 2.
Increasing oestrogen and progesterone concentrations inhibit any further release of LH by negative feedback.
Regulation of the birth process
back into a lower level by negative feedback, since the mechanical stimulation of the uterine wall is no longer present.
Regulation of body temperature
Posted by rozaini at 11:21 PM