Biology, asked by Anonymous, 9 months ago

1. Why do we get goose bumps? 2.Why our nose bleeds?​

Answers

Answered by Anonymous
1

Answer:

he body hair of all mammals automatically stands up when cold, creating a fluffy layer of warmth. When we're cold, the muscles around the hair follicles contract – a reflex left over from when our ancestors had long body hair. But since we don't have much body hair, all we see are the goose bumps on our skin.

Explanation:

Bleeding from only one nostril is the most common symptom of a nosebleed. Usually a nosebleed from both nostrils is due to a heavy flow from one nostril; the blood has just backed up and overflown into the other. If blood drips down the back oThe most common causes of nosebleeds are dryness (often caused by indoor heat in the winter) and nose picking. These 2 things work together — nose picking occurs more often when mucus in the nose is dry and crusty. Other, less common, causes include injuries, colds, allergies, or cocaine use.f the throat into the stomach you may spit up or vomit blood.

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