Long-day plants Slideshow Play

Long-term effects of human activities Slideshow Play

Look-alikes Slideshow Play

Louis Pasteur and Robert Koch – the fathers of microbiology Slideshow Play

Lung diseases caused by smoking Slideshow Play

Lungs of vertebrates Slideshow Play

Lysozyme Slideshow Play

Macro-elements; trace elements and ultra-trace elements Slideshow Play

Macro-evolution Slideshow Play

Macroelements in the cell Slideshow Play

Macromolecular crystals as gemstones Slideshow Play

Made and not made up of cells Slideshow Play

Magnesium Slideshow Play

Magnetic materials Slideshow Play

Magnetic metals Slideshow Play

Main stages of ecological succession Slideshow Play

Main uses of crude oil fractions Slideshow Play

Maize Slideshow Play

Major sources of energy Slideshow Play

Malaria – a serious infectious disease Slideshow Play

Male reproductive system Slideshow Play

Marble Slideshow Play

Mass spectrometry Slideshow Play

Matt surfaces Slideshow Play

Matter and its structure Slideshow Play

Meaning of the information Slideshow Play

Measures taken to prevent expansion of the ozone hole Slideshow Play

Measuring blood pressure Slideshow Play

Measuring mass and weight Slideshow Play

Measuring membrane potential Slideshow Play