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What are the main differences between meiosis and mitosis?

Both mitosis and meiosis are processes of dividing a diploid cell, however there are a number of key differences. Mitosis results in two genetically identical, diploid, daughter cells and takes place during ...
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Answered by Kara E. • Biology tutor
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Describe how the human body can prevent the entry of organisms that cause disease. Include physical barriers and chemical defences in your answer.

Physical barriers: skin to prevent entry of organisms into the bloodstream cilia lining the nasal passages / bronchi to prevent entry to lungs / remove mucus scabs to prevent entry of microorganisms into the...
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Answered by Khadija M. • Biology tutor
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Which of the basic life processes is described here? The ability of multicellular organisms to regulate their internal environment so that it stays optimum for cellular survival.

Homeostasis
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Answered by Alice M. • Biology tutor
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Explain the diffusion process of gas exchange in the lung during respiration

Oxygen and carbon dioxide, dissolved in water, are exchanged by diffusion in the lungs. Blood travelling to the lungs is deoxygenated and instead of oxygen, carbon dioxide is bound to the red blood cells. Th...
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Answered by Calum R. • Biology tutor
13927 Views

What are the stages of mitosis?

Prophase - everything in the cell duplicates, and the chromosomes condense Metaphase - chromosomes align in the middle of the cell and spindle fibres attach to the centromere (part holding the two sister chr...
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Answered by Anya M. • Biology tutor
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