9th - Carbon cycle, Water cycle - game

http://www.neok12.com/diagram/Carbon-Cycle-01.htm

http://www.neok12.com/diagram/Water-Cycle-01.htm

Tricks to remember Phylum's and Classes...

See the letters in bold they stand for phylum and class respectively...

They are in their  increasing order of complexity to help you remember things accordingly. for e.g. You can remember, upto which phylum animals are diploblastic, where does triploblastic start...

Phylum:
Po Can you PLease give NAAN to ME

NOTE: Since 'A' comes side by side it will replace each other while you are reading... So that all phylum's come in a proper sequence... So, 'AN( Annelida)' comes before 'A' (Arthropoda)'


Class
PARAM in my CLASS is a VERTEBRATE.

Some links for 10th Biology - Revsion

Though links are provided here... It is better that you rely on the NCERT textbook, W/S we have in the school and what teachers discuss in the class.

http://cbseportal.com/exam/class-x/biology/REV.-QUESTIONS-BIO-CLASS-X-HEREDITY-AND-EVOLUTION

http://extragrades.com/cbse/class-x/science/chapter-9-heredity-and-evolution/

http://cbse4.blogspot.in/2012/07/solved-assignment-heredity-and.html

http://www.kshitij-school.com/CBSE-Board/Important-questions/Class-X/Science/Heredity-and-Evolution-1.aspx

Why do we fall ill - Discussion on Symptom Vs Sign

Here are some more facts to help you differentiate between the two.

1. Signs are what a doctor sees, symptoms are what a patient experiences.
2. While signs are the physical manifestation of injury, illness or disease, symptoms can be described as what a patient experience about the injury, illness or disease.
3. Signs are objective. Symptoms on the other hand are subjective

You can go to the following links for more information:

http://wiki.answers.com/Q/What_is_the_difference_between_signs_and_symptoms
http://www.differencebetween.net/science/health/difference-between-signs-and-symptoms/
http://firstaid.about.com/od/symptoms/f/09_The_difference_between_signs_and_symptoms.html