Mitosis and the cell cycle lesson for AQA GCSE Biology 4.1.2.1 and 4.1.2.2. Chromosomes, cell cycle diagrams, worksheets and full answers. This is a complete lesson on chromosomes, mitosis and the ...

Menstrual cycle and puberty hormones lesson for AQA GCSE Biology 4.5.3.4: FSH, LH, oestrogen, progesterone, HT hormone graphs, worksheets and answers. This is a complete lesson on hormones in human ...

Nitrogen is essential for life. It's needed to build proteins, DNA and many other components of cells. Although nitrogen gas makes up almost 80% of Earth's atmosphere, most organisms cannot use it ...

When working with drug candidates, chemists sometimes like to replace a carbon atom in a ring of atoms with a nitrogen atom. This is because the switch can significantly alter the molecule’s ...

The "relentless" cycle of pupils in England failing and then resitting their GCSEs in maths and English is "simply not working", a leading education union has said. The Association of School and ...

Amid all the advances in modern medicine, much of the science behind a woman's menstrual cycle remains mysterious, so a team at Hudson Institute of Medical Research is aiming to change that. Professor ...

For decades, Jon Zehr was haunted by an organism he knew was there — but couldn’t see. It all started in the ‘90s on a research boat in the middle of the ocean. Zehr was an oceanographer studying ...

A federal judge has banned Alabama from executing a death row inmate by nitrogen hypoxia, reversing a previous opinion and concluding that the controversial and relatively new execution method is ...

Concerns about living in a “post-truth” society – where evidence struggles to compete with misinformation, ideology and emotion – are now familiar. From vaccine hesitancy to climate change denial, ...

Climate change is not only warming the planet and disrupting rainfall, it is also quietly rewiring the way nitrogen moves through the world’s croplands, forests, and grasslands. This hidden shift in ...

A comprehensive review published in Nitrogen Cycling highlights significant advances in understanding the soil nitrogen cycle, emphasizing the critical role of microbial processes and innovative ...