Match these terms and definitions. 1. the smallest complete unit of a compound or diatomic gas molecule 2. a new substance formed by the combination of two or more different atoms element 3. path of electrons around an atomic nucleus compound 4. a substance consisting of only one type of atom shell

1) molecule

2) compound

3) atomic number

4) element

the answer is b)3/8x+1

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.