<span>Acute exposure to radioactive substances.
Acute exposure is radiation exposure that occurs in a short time period. It can be an exposure that occurs once in your lifetime. This might be that one foot x ray you had because you may have broken your foot. Acute exposure can also be exposures that occur more than once, but very infrequently and for short periods of time. This might be dental x rays you get every few years.</span>
The greater the energy, the larger the frequency and the shorter the wavelength. Given the relationship between wavelength and frequency; the higher the frequency, the shorter the wavelength it follows that short wavelength are more energetic than long wavelength.
The skin acts as a barrier for protecting the body from the harmful things such as sun rays, moisture, cold.
<u>Explanation:</u>
Skin plays an important role in regulating body temperature. It helps to prevent harmful substances enter into our body, and does not allow to loss water in our body. Its form the barrier that prevents harmful substances and microorganisms enter in our body.
Our skin is the protecting layers and against loss of water and blood from our body. Its help us to maintain the constant body temperature. The important role of the skin us to protect our body from the ultraviolet rays.
<h3><u>Answer;</u></h3>
It was developed by many scientists over many decades.
<h3><u>
Explanation;</u></h3>
- DNA is a type of nucleic acid that contains two long, twisted strands, known as double helix, that contain complementary genetic information.
- A gene is a segment of DNA that is passed down from parents to children and confers a trait to the offspring.
- The traits an organism displays are ultimately determined by the genes it inherited from its parents, known as genotype.
- Our understanding of DNA and inherited traits has changed over time since it has been continuously developed by many scientists over may decades.