Discusses the characteristics of plants, describes how they are classified, and examines the parts of the plant.

There are hundreds of thousands of plant species on Earth, from liverworts less than an inch tall to giant redwood trees that reach hundreds of feet into the sk

Introduces plant reproduction, discussing how plants grow and develop and what influences the growth, and describes their role in ecosystems.

Distinguished by their highly developed mental faculties and their capacity for reason, humans are often said to reign sovereign in the animal kingdom. With the

Formalizing study of the natural world may seem like a daunting task considering the sheer breadth and variety of living things that inhabit the planet. From th