The varitions of animal tissues according to the structure and functions. Some parts of an animal are very hard while others are soft or...

The variations of plant tissues according to the structure and functions. Some parts of a plant are very hard while others are soft or...

Explore the levels of organization of body of living beings. In 1665A.D. Robert Hooke has observed a section of a cork bark by a...

Examine the organizational patterns of the bodies of living organisms. Number of biologcal activities are occured in the body of...

Scientists use scientific naming system There are millions of organisms living on earth. Each one has different names in various...