DOGS

By: Kim.

1. All living things are made from the basic chemical ingredients.

-Dogs like other organisms are made up of what we call DNA. -DNA is what makes the dog have a certain eye color and be a certain size.-There are lots of different breeds of dogs because not all their DNA is lined up the same.

Adenine Thymine Cytosine Guanine

What DNA is made up of:

2. Living things are composed of cells. Cells are the basic structural units of life.

-Dogs of course like every other living thing are made up of cells.-Cells form the tissues and the muscle. Then the tissue goes and forms the organs which dogs need to survive. Ex. Heart , Lungs , Intestines.

3. Living things require water, and a source of energy.

-Dogs need to water to stay hydrated , it helps regulate their body temperature, and it helps their digestive system work properly.-The food they eat is usually very high in protein to help build muscles.

4. Living things have the ability to reproduce.

-Dogs can reproduce.-Female dogs have heat cycles. This means they can only be bred about three times a year.-The amount of puppies per litter depends on the type and size of the dog.

5. Living things all have a life span and will die.

-The life span of a dog depends on what species they are.-Often dogs do not live out their full life span because of disease and sickness.-There are lots of diseases that dogs can catch that are very contagious.

• Distemper, which affects the respiratory and the nervous system. • Parvo, affects the bowels. • Hepatitis, which like in humans affects the liver.

6. Living things respond to their surroundings.

-How dogs demonstrate homeostasis depends on the breed.-For example , Golden retrievers. In the fall they start growing a coat of very long and shaggy hair , this is too protect them from the cold in winter. Than when spring comes around they shed their hair so they can be comfortable in the warm weather of summer.-Dogs also pant when they are hot , and are trying to regulate their body temperature.

7. Living things have the ability to move.

-Dogs have the ability to run very fast , and tire slowly.-The amount of exercise a dog needs to stay healthy , depends on the breed of dog.-Dogs are amount used as hunting dogs , or tracking dogs so they are designed to move.

8. Living things have the ability to repair injuries.

-Dogs often lick their wounds to speed up healing.-But they can get Lick granuloma from excessive licking.-Many cultures believe that a dogs saliva has healing abilities, but this is just because oral wounds heal faster than skin outside the mouth.

9. Living things can undergo change over time.

-Adaption's are modifications that make an organism suited to its way of life.-Dogs grow long hair when its cold , and shed it when the weather gets warmer.-Dogs also have toe pads to protect their feet from rough surfaces.-Some dogs also have water repellent fur for swimming.-Each breed of dog was intentionally bred for some purpose or task.

http://voices.yahoo.com/10-dog-diseases-common-all-dog-breeds-5787772.html

http://en.wikipedia.org/wiki/Dog

http://wiki.answers.com/Q/What_adaptations_do_Dogs_have_that_keep_them_cool

http://wiki.answers.com/Q/What_are_some_unique_characteristics_of_dogs

http://answers.yahoo.com/question/index?qid=20080310160255AAxSTq4

http://www.examiner.com/article/dog-breeds-unique-traits-and-fun-trivia