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irinina [24]
3 years ago
11

Explain how x-rays cause damage to human cells.

Biology
1 answer:
sergiy2304 [10]3 years ago
7 0

When the human body (its cells) is exposed to radiation (X rays and gamma rays), electrons are emitted from atoms and molecules. ... ・These radicals react immediately with surrounding atoms, causing abnormal chemical reactions (or, minor damage to localized areas of cells).

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Two frog populations (same species) living in two neighboring lakes sing slightly different courtship songs. Increased irrigatio
dedylja [7]

Answer:

C. The songs will become more similar to each other.

Explanation:

To answer this question, first, you need to remember that both populations belong to the same species, so they can mate because there is no reproductive barrier. The only limiting physical factor impeding individuals of both groups to cross was the piece of land before the land got wetter. So once populations got together, individuals can easily mate.

One population´s males exhibit a courtship song that slightly differs from the one of the other group. This difference has a genetic basis. But females hardly notice the difference. All of them prefer loud frogs to quieter frogs, independently of the population to which they belong.

So when the two populations get together, individuals get mixed. Females do not recognize males of their group, and during the breeding season, all females will mate the most with louder males of any of the population. So females from population A might mate with males from population B, and females from population B might mate with males from population A. So after mating season, there is also a genetic mixture between populations.

The new generations will carry elements of both genotypes. So males´ songs will be even more similar to each other. Songs will become more similar to each other because individuals of both populations are mixed and mated, and their genes intercrossed, producing new individuals with genes of both populations.

8 0
3 years ago
Scientists were. about whether dolphins could be used as therapy animals
kupik [55]

Answer:

i would say they were skeptical

Explanation:

nobody really knows how test are going to work out, no one knows how intelligent marine life is at first. Im sure a lot of scientist doubted the idea of them being therapy animals

8 0
3 years ago
Which of the following is NOT true about storage body fat? A. Storage body fat acts as an insulator to the body. B. Storage body
finlep [7]

B. Storage body fat helps increase the effects of aging.

Explanation:

Fats are organic compounds that are insoluble in water and tend to solidify at room temperature.

Fats are essentially produced in animal body.

These are one of three macro-nutrients required in the body.

Adipose tissue which are also known as padding tissue function as a store house of fat.

They serve as cushion and protect the internal organs from shock or injury.

Fats are storehouse of energy and provide much more energy than the carbohydrates could.

They insulate the body and prevent the loss of heat in cold weathers.

4 0
3 years ago
Read 2 more answers
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B
Mrrafil [7]
I think it’s C
Sorry if it is wrong
3 0
3 years ago
Read 2 more answers
Two factors that determine the rate of stream erosion
marissa [1.9K]
Factors that determine the rate of stream erosion-

➡️ Rainfall (more rain more erosion). ✔️

➡️water velocity ✔️

➡️shape, size and depth of channel ✔️

➡️stream capacity to transport eroded material, and the nature of the material being transported✔️

➡️Gradient (Steepness or slope) ✔️

➡️Discharge (Amount of water carried at a given time) ✔️

➡️Load (The materials carried by a stream)
Rainfall (more rain more erosion). ✔️

➡️Slope (the steeper the slope the faster the water will flow) ✔️

➡️Geology (if the bedrock is a soft silt it will erode faster than granite).✔️



7 0
3 years ago
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