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What adaptations do animals have to help them survive in specific environments?

Animals living in harsh environments may have adaptations to help them survive. For example, animals living in hot conditions, like camels, have many features to help them survive. Camels have humps which ca...
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Answered by Rachael Y. • Biology tutor
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How do vaccines cause immunisation to disease?

Vaccines contain an inactive form of a pathogen, or dead pathogen, and are injected into the body to give immunity to that pathogen. The inactive pathogen acts as an antigen, stimulating an immune response, ...
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Answered by Rachael Y. • Biology tutor
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What are the 3 main variables within a scientific experiment?

• The independent variable is what you change throughout the experiment. Some examples of this may be temperature, pH, light levels or time. • The dependent variable is what is being measured. This is expect...
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Answered by Rachael Y. • Chemistry tutor
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What is apocapation?

There is a certain group of adjectives in Spanish which need to be shortened- only in front of MASCULINE SINGULAR NOUNS. This is called apocapation. The adjectives are: -Uno (un hermano) -Primero (el primer ...
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Answered by Annie D. • Spanish tutor
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Explain how a profit can be earned in the short run but not the long run in a perfectly competitive market.

This is a fairly common a) question on Economics HL paper one. It is a 10 mark question, so a maximum of 20 minutes should be spent on it in order to leave time for question b). It concerns the workings of t...
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Answered by William G. • Economics tutor
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