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How is thermoregulation achieved

When it is too cold the hypothalamus in the brain detects it is too cold it sends nerve impulses or electrical signals through the nervous system to targeted areas:erector muscles (don't laugh): are constric...
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Answered by Vikram M. • Biology tutor
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How does the reflex arc work?

first something must occur, a change in the external environment (and more rarely within the body). This is known as a stimulus.This stimulus will be picked up or "recepted" by a receptor.The recep...
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Answered by Vikram M. • Biology tutor
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How does the human respiratory system work?

When you breath in, the intercostal muscles and diaphragm contract. This causes the diaphragm to flatten and the ribs to move apart which increases the size of the chest cavity. The larger volume now means t...
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Answered by Natasha C. • Biology tutor
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Name the 4 different stages of Mitosis?

1- Prophase2- Metaphase3- Anaphase4- Telophase
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Answered by Jonny M. • Biology tutor
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What are the comon features of an animal cell and what are there functions?

Cytoplasm: A jelly-like material that contains dissolved nutrients and salts and structures called organelles. It is where many of the chemical reactions happen.Nucleus: Contains genetic material, including ...
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Answered by Emily A. • Biology tutor
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