Animals - the vertebrates

Medical applications of genetic engineering

Cancer

Human immunity

Plants

Agriculture - the conservation of biodiversity

Individual actions for nature conservation

Global actions for environmental protection

Restoration of the natural environment

How plants escaped from a reserve

Passive and active ecosystem conservation

Methods for flood prevention

Causes of floods

Transport systems and infrastructure

The kitchen

Room

The kitchen and bathroom

Nature as a living organism

Human activities and the transformation of ecosystems

Secondary succession in milk

Changes in biodiversity and productivity during succession

Why ecosystems change

Main stages of ecological succession

Effects of introducing new species into a biocoenosis

Secondary succession

Primary succession

Ecological succession

Balance of matter and energy in the environment

Equilibrium in the environment

Calcium carbonate cycle