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How do white blood cells protect the body?

White blood cells in the body can attack pathogens, which are micro-organisms which cause disease. The white blood cells can ingest the pathogen, produce antibodies which destroy a particular pathogen, or pr...
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Answered by Eleanor M. • Biology tutor
12596 Views

Which verbs are formed like 'gustar'?

The words 'encantar' - to love, 'faltar' - to be lacking something, 'interesar' - to be interesting to, 'aburrir' - to bore, 'fascinar' - to be fascinating to, 'bastar' - to be sufficient to, 'molestar' - to...
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Answered by Elle M. • Spanish tutor
4069 Views

How do I form a comparative adjective?

In English we add 'er' at the end of the word to form a comparative (i.e. pretty -> prettier, shallow -> shallower). In Latin you add 'ior' at the end for the masculine and feminine forms, or 'ius' for...
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Answered by Elle M. • Latin tutor
3963 Views

What are polymers and why are they useful?

Polymers are large molecules made from lots of repeating units called monomers. Plastic bags, waterproof coatings on clothes and wound dressings can all be made from polymers!
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Answered by Eleanor M. • Chemistry tutor
6671 Views

What is the difference between an alkene and an alkane?

Both alkanes and alkenes are hydrocarbons, which means they only contain carbon and hydrogen atoms. Alkanes are saturated hydrocarbons, which means each carbon atom is bonded to four other atoms and there ar...
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Answered by Eleanor M. • Chemistry tutor
13928 Views