Answer:
hardiness.
Explanation:
When some exhibit the properties or say characteristics of endurance to unfavourable or difficult situation and circumstances the term to used for such person is known as or it is called hardiness.
Looking at the question we can see that Tim 'enjoys challenges' and also Tim ' feels capable of responding effectively no matter what the situation'. These two attributes are the signs of hardiness. Tim has the courage to face unfavourable situations or condition unlike his sister Ashley that react oppositely to family stress situations.
A is the answer
Brainlist
Endocrine system - deals with hormones and other chemicals through the blood plasma
Bright light inhibits our feelings of sleepiness by influencing the production of melatonin.
Melatonin is a hormone that your brain produces in response to darkness. It helps with the temporal arrangement of your time rhythms (24-hour internal clock) and with sleep. Being exposed to light at night will block internal hormone production. Analysis suggests that internal hormone plays different necessary roles within the body on the far side sleep.
Bright light within the evening, two hours before hour, can cause you to feel asleep and go to sleep later. If you've got bother falling asleep, dim the lights two hours before you would like to travel to sleep. If you get asleep too early within the evening, move into a well-lit space to feel additional awake.
To learn more about Melatonin here
brainly.com/question/6580182
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Virus and bacteria are the suedes that cause it
