The cell theory has been supported by a great deal of evidence over the
years. For example, scientists have been able to observe cells in living
organisms using microscopes. They have also been able to isolate and
study cells in the laboratory.
The diversity of life
The diversity of life is one of the most amazing things about biology. There
are millions of different species of living organisms on Earth, and each one
is unique.
The diversity of life can be classified into three main categories:
The diversity of organisms: This refers to the different types of
organisms that exist on Earth. There are millions of different species
of organisms, and each one has its own unique characteristics.
The diversity of genes: This refers to the different genes that exist in
living organisms. Genes are the units of heredity, and they determine
the characteristics of organisms.
The diversity of ecosystems: This refers to the different ecosystems
that exist on Earth. Ecosystems are the communities of organisms
that live in a particular area.