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Carbon dioxide is a greenhouse gas that is produced through the burning of fossil fuels such as coal, oil and gas. Increased demands for electricity, heating and cars etc. means that more fossil fuels are...

Short answer: Dead and/or inactive pathogens. Explanation (also to a further question: "How does this prevent infection later?") : Pathogens are microorganisms...

Detect surounding stimuli. Convert that information to impulses and send to the brain.  

We inherit two copies of a gene called alleles, one from each parent. The alleles we inherit from our parents can either be dominant or recessive. A dominant allele requires just one copy of the allele to...

Mitosis is a form of asexual reproduction in plants. A parent cell splits into 2 identical daughter cells. There are 46 Chromosomes in each cell and each chromosome is copied exactly, using chromatids to ...