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Animals and plants have features (adaptations) that allow them to survive in the conditions in which they normally live. Describe how animals and plants are adapted to survive in dry conditions such as deserts. For each adaptation that you give, describ

Species that live in desert habitats, where water is scarce, have adaptations to conserve water and cope with the sandy terrain. A good example is the cactus which has thin spines intead of leaves, this redu...
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Answered by Lorna W. • Biology tutor
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How do fish ventilate their gills?

Unlike mammals fish have water as their gas exchange medium instead of air. Fish use gills for gas exchange, gills are specialised flaps of tissue which have the following features to allow efficient gas exc...
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Answered by Meg H. • Biology tutor
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What are the main differences between mitosis and meiosis?

Mitosis Human cells have 23 pairs of chromosomes (diploid - 2 copies of each chromosomes). This is a form of cell devision which makes an exact replica of the cell that is dividing. The cell grows and the DN...
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Answered by Jun Yu C. • Biology tutor
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Explain the cardiac cycle

basic anatomy of the heart: chambers, valves, structural difference between right and left side of the heart pulmonary vs. systemic circulation blood flow through the heart
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Answered by Umamah T. • Biology tutor
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Use your knowledge of natural selection to suggest how the peacock's tail has evolved.

Mutation Competition Females are attracted to the tail Reproduce with males with an extravagant tail Offspring pass on the characteristic of an extravagant tail Offspring inherit the gene for producing an ex...
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Answered by Nathan F. • Biology tutor
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