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Fed [463]
3 years ago
9

The _______ system helps guard against infection, protect from UV radiation, and regulate body temperature? A. integumentary B.

immune C. circulatory D. endocrine
Biology
2 answers:
KiRa [710]3 years ago
6 0

Correct answer: A). Integumentary

The integumentary system composed of the hair, nails, skin, glands, and nerves. Its main function is to provide protection to the body against disease-causing infections such as bacteria and viruses and act as a barrier to harmful ultraviolet radiations, which are coming from the Sun.

It works in coordination with all the other system of the body in order to maintain internal body temperature which is essential for normal body functions. It also helps the body to eliminate waste products.

Hence the correct answer would be option A.


Molodets [167]3 years ago
5 0

The immune system helps guard against infection, protect from UV radiation, and regulate body temperature.

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Do you think smoking has negative effect on fetal development?
n200080 [17]

Smoking during pregnancy affects your and your baby's health before, during, and after your baby is born. The nicotine (the addictive substance in cigarettes), carbon monoxide, lead, arsenic, and numerous other poisons you inhale from a cigarette are carried through your bloodstream and go directly to your baby. Smoking while pregnant will:

<span>Lower the amount of oxygen available to you and your growing babyIncrease your baby's heart rate<span>Increase the chances of miscarriage and stillbirth</span>Increase the risk that your baby is born prematurely and/or born with low birth weightIncrease your baby's risk of developing respiratory problems</span>

The more cigarettes you smoke per day, the greater your baby's chances of developing these and other health problems. There is no "safe" level of smoking for your baby's health.

8 0
3 years ago
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State at least <br>5 importance of soil to agricultural​
andriy [413]

Answer:

Soil health is fundamental for a healthy food production. It provides essential nutrients, water, oxygen and support to the roots, all elements that favor the growth and development of plants for food production

Explanation:

3 0
2 years ago
Scientist are studying an 500g. Sample of a radioactive element. Which has an annual decay rate of 11%. How many grams of the sa
gtnhenbr [62]

Nothing

Explanation:

Mass of the sample = 500g

Decay rate per anum = 11%

Unknown:

Mass of sample remaining after 10yrs = ?

Solution:

  This is a simple percentages problem;

The radioactive sample loses \frac{11}{100 } x 500g of sample per year;

  this is a loss of 55g per year;

In 10years time, the sample would have lost 10 x 55g = 550g of element.

Since our sample is not up to 550g, then no amount of sample will remain after 10yrs.

learn more:

Radioactive decay brainly.com/question/10094982

#learnwithBrainly

6 0
3 years ago
Which layer of the epidermis has a high mitotic rate
TEA [102]
Alright bud the best answer to this question would be that the stratum basale or stratum germinativum which would be the bottom most part of the epidermis has the highest mitotic rate
7 0
3 years ago
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valentinak56 [21]

The right answer is polarity.

In chemistry, polarity is a characteristic describing the distribution of negative and positive charges in a dipole. The polarity of a bond or a molecule is due to the difference in electronegativity between the chemical elements that compose it, the differences in charge that it induces, and to their distribution in space. The more the charges are distributed asymmetrically, the more a bond or molecule will be polar, and conversely, if the charges are distributed in a completely symmetrical manner, it will be apolar, that is to say non-polar.

Polarity and its consequences (van der Waals forces, hydrogen bonding) affect a number of physical characteristics (surface tension, melting point, boiling point, solubility) or chemical (reactivity).

Many very common molecules are polar, such as sucrose, a common form of sugar. The sugars, in general, have many oxygen-hydrogen bonds (hydroxyl group -OH) and are generally very polar. Water is another example of a polar molecule, which allows polar molecules to be generally soluble in water. Two polar substances are very soluble between them as well as between two apolar molecules thanks to Van der Waals interactions.

5 0
3 years ago
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