BIOLOJOY

1. The human body is made up of a head, neck, torso, two arms and two legs. The average height of an adult human is about 5 to 6 feet tall. The human body is made to stand erect, walk on two feet, use the arms to carry and lift, and has opposable thumbs (able to grasp).
2. The adult body is made up of: 100 trillion cells, 206 bones, 600 muscles, and 22 internal organs.

3.  There are many systems in the human body: Circulatory System (heart, blood, vessels) Respiratory System (nose, trachea, lungs) Immune System (many types of protein, cells, organs, tissues) Skeletal System (bones) Excretory System (lungs, large intestine, kidneys) Urinary System (bladder, kidneys) Muscular System (muscles) Endocrine System (glands) Digestive System (mouth, esophogus, stomach, intestines) Nervous System (brain, spinal cord, nerves) Reproductive System (male and female reproductive organs)

4. Every square inch of the human body has about 19 million skin cells.

5. Every hour about 1 billion cells in the human body must be replaced.

6. The average human head has about 100,000 hairs.

7. The circulatory system of arteries, veins, and capillaries is about 60,000 miles long.

8. The heart beats more than 2.5 billion times in an average lifetime.

9. There are about 9,000 taste buds on the surface of the tongue, in the throat, and on the roof of the mouth.

10.  The strongest muscle in the body is the tongue.

11. The human heart creates enough pressure when it pumps out to the body to squirt blood 30 feet.

12. You blink over 10,000,000 times a year.

13. The human brain weighs about 3 pounds.

14. It takes about 20 seconds for a red blood cell to circle the whole body.
15. Only 10% of the population are left handed.

16.  One fourth of the bones in your body are in your feet.

17. Children tend to grow faster in the spring.

18. The most sensitive finger on the human hand is the index finger.

19. More men are color-blind than women.

20. More people have brown eyes than any other color.

Animal Behavior

Animal Behavior is the scientific study of the wild and wonderful ways in which animals interact with each other, with other living beings, and with the environment. It explores how animals relate to their physical environment as well as to other organisms, and includes topics such as how animals find and defend resources, avoid predators, choose mates, reproduce, and care for their young.

Behaviors exist on a continuum from being to a large extent contingent on genetic factors (i.e., instinctive), to others which are mostly acquired through experience. Instinctive components are those that are exhibited without the benefit of, or need for, prior experience. They come to the fore when, for instance, newly hatched, inexperienced individuals of a particular species of spider construct their webs with little variation, despite the lack of a tutor. Learned behaviors are those that are acquired through interactions with the surrounding world.

Nature vs. Nurture describes a debate about the degree to which individual differences in physical and behavioral traits are the product of an individual's innate qualities ("nature") versus those shaped by personal experiences ("nurture"). This dichotomy aims to delineate how much of the human (psychological) make-up is the result of environmental influences and how much is a result of phylogenetic heritage. In today's view there are multiple problems with phrasing the issue in this either-or form. Most significant of all, as the two are NOT mutually exclusive concepts. It is now clear that in every instance both influences play significant roles as all development represents a complex interaction between inherited factors and environmental conditions.