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What are chromosomes?

Chromosomes are thread-like structures that are found in the nucleus of the cell. They contain many genes which are sections of DNA that code for a particular protein. These proteins will give an individu...

Answered by Emma C. • Biology tutor

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Describe how different environmental factors affect the direction of growth of roots and shoots making reference to plant hormones

Shoots grow upwards towards light and away from gravity, while roots grow downwards towards moisture and with gravity. Plants produce an uneven distribution the hormone auxin causing unequal growth rates ...

Answered by Paul I. • Biology tutor

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What was the greatest threat to Britain's position as a world power in the years 1874-1901?

OVERSEAS COMPETITION - Russia (1874-1885) - balance of power in Balkans and Med., threatening India and British trade dominance in China Germany (1885-1905) - threatened British colonial dominance i...

Answered by Athavan B. • History tutor

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discuss the strengths and weaknesses of Kant's Deontological ethics, how well does it work as a theory?

Outline very briefly who Kant was, he was a german philosopher who argued that morality was a matter of absolute rules, rules that admit no exceptions and appeal not to religious considerations but reason...

Answered by Ciaran R. • Philosophy and Ethics tutor

43424 Views

A person touches a hot pan by accident and their hand automatically moves away. What type of response is this? Describe how the structures involved cause the response. (5 marks)

Reflex action/reflex arc/reflex (allow "involuntary") The stimulus (heat) is detected by temperature receptors in the skin. This causes impulses to travel along a sensory neurone to the spinal c...

Answered by Ariel R. • Science tutor

48354 Views