Why do we get ill when we get stressed?

Answers

Answer 1
Answer: When your body is stressed you are constantly in the fight or flight mode. Your heart beat is higher, blood pressure is up and constant alertness is given full attention to your bodies defenses. Ther are a lot of flowing hormones to be able to use all of your strenght and more to survive. When this continues for long periods of time you dont sleep, eat and think properly and your body's immune system is weakened and you get sick easier.

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Early organisms in the precambrian era converted ______ to oxygen.

Answers

Answer:

Early organisms in the precambrian era converted ___Carbon dioxide__ to oxygen.

Explanation:

THE PRECAMBRIAN ERA:

The word Precambrian means before the Cambrian period. Before the formation of oldest rock with having fossils in them this term was used to the whole period of earth's history.

This era gone through number of important changes. One important change is that atmosphere of this era is deprived of Oxygen. All other content of the atmosphere is same as component of air present today but with little water vapours. Early organisms in the precambrian era converts carbon dioxide into oxygen. This oxygen was very less and begins to combine chemically with iron and other elements. This produces great mineral deposits around the world. This is the era from where aerobic respiration organisms start their life cycles.

Carbon dioxide to oxygen.
This was the start of the evolution of photosynthesis, where carbon dioxide is broken down to its constituents, and the carbon is used for the synthesis of glucose to be stored in the organism as energy storage.

Hope this helps! :)

What do geologists use to determine a rock layers absolute age

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I believe the answer is radiometric dating.

Which type of muscle is used primarily for voluntary actions?a. skeletal
b. smooth
c. cardiac
d. both
b. and
c.

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The skeletal muscle is used, so A.

what primary location in the digestive tract do enzymes act to break the bonds between disaccharides so they may be transported for cell use as monosaccharides?

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In the digestive tract, mouth is the primary location where enzymes act to break the bonds between disaccharides into monosaccharides.

What is a digestive tract?

It consists of the gastrointestinal tract along with the accessory organs which are present in digestion process . It involves the breakdown of complex food into smaller components which can be easily assimilated and absorbed by the body.

The digestion process has 3 phases: cephalic phase , gastric phase and intestinal phase.Cephalic phase begins with secretion of gastric juices  from gastric glands in response  to sight and smell of food.It involves chewing and chemical breakdown of food  by the action of digestive enzymes ,saliva in the mouth contain enzymes like lipase  and amylase which are secreted by the salivary and serous glands present on the tongue.

Learn more about digestive tract,here:

brainly.com/question/28163067

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Answer:

Mouth.

Explanation:

Mouth contain saliva.Saliva have enzyme salivary amylase (ptyline) which breakdown disaccharides(starch) into Monoscchrides .About 30% disaccharides(starch ) digeation occur in mouth.

The school has 800 students with 20 students on the gymnastic team and 10 students on the chess team (including 3 students who are on both teams). How many students in the school are not members of either the gymnastic team or the chess team?

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so first you add both gym and chess members then you minus to tht total amount of students: chess+gym=10+20=30   total students= 800 since the question asks how many people did not participate in either gym or chess so u minus: 800- 30 = 770 
so the answer will be 770 did not participate in both gym and chess
this question seems like its too easy so i might have got it wrong.. but would't you just subtract 20 and 10 from 800 to get 770?

Which system most likely interact and cause the severity of infections to vary?

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The answer is an immune and endocrine system.

Immune and endocrine system are connected in a complex way. Hormones are specific modulators of immune cell and are able to affect their activation and function. The severity of infection depends on their interaction. For example, testosterone can suppress the immune system. In the case of infection, the body is more susceptible to infection. This can partially explain the fact that autoimmune diseases are more common among the women than men.