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Scorpion4ik [409]
3 years ago
6

you notice a sign in a parking structure that says "Warning: This area contains chemicals known to the state of California to ca

use cancer and birth defects or other reproductive harm". How can these harmful chemicals affect your DNA?
Biology
2 answers:
Brrunno [24]3 years ago
4 0
They can enter your blood stream (via breathing/ingesting) and once in your bloodstream they can enter cells and mutate your dna, which can cause cancer/birth defects/ reproductive harm
Arisa [49]3 years ago
4 0

Answer:

High-dose chemicals can damage DNA causing genotoxicity, which is defined as damage to DNA or genes. And this can be aggravated since many chemicals have had little toxicological evaluation.

Explanation:

The cancers are caused by mutations in the DNA throughout the life of a person, in such a way that obeying the causative factors, in this case the chemicals, they leave a mutational pattern in the genome of each tumor. There is an interesting biomarker called TGx-DDI, which is based on some genes that are expressed in a cell subjected to the stress produced by the chemical compound. These genes reflect the way in which different pathways can provide information on how cells respond to the chemical.

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What factor would result in an increased mortality in a population due to increased competition for water?
inn [45]
Mortality, or death rate is a measure of the number of deaths in a particular population, scaled to the size of that population, per unit of the time. In this case a factor that would result to an increased mortality rate in a population due to increased competition of water will be the density-dependent factor. 
5 0
2 years ago
Question 4 .Which process is a physical change?
ohaa [14]

Explanation:

Which process is a physical change?

c. melting ice

If you break a piece of glass, the shape of the glass changes, but the properties in the fragments remain the same. Which of the following has occurred?

d. a physical change

A substance made up of two or more elements that have been chemically combined is called

c. a compound

Of the three ordinary states of matter, gas is the only state that

c. is highly compressible

In which state of matter do the particles have the most energy?

b. gas

Elements in group 18 called Noble Gases are highly reactive because they have 1 valence electron.

false

Atomic mass is the sum of

b. protons and neutrons

The current model of the atom is known as

a. Rutherford's model

Most elements on the periodic table are

d. metals

Which is not a quality of a non-metal?

a. shiny

Hope this helps.

3 0
2 years ago
1. Why do you think the geocentric model was popular for<br> so long?
zhannawk [14.2K]
Answer:

Because humans couldn’t see outside of earth. Gailieo Galilei used his telescope to prove this was wrong ultimately.

More:

it was debunked till the 16th century. Scientists observations and knowledge had advanced too far for the geocentric model to explain them.
I looked like the sun was moving from earth but it really earth thats moving around the sun. The parallax is effect helped explain this.
3 0
3 years ago
Could somebody please help me?
guajiro [1.7K]

Answer:

4

Explanation:

5 0
2 years ago
What is the sugar found in DNA that makes up the sugar-phosphate backbone of the double helix?
Georgia [21]

Answer:

deoxyribose

Explanation:

A phosphate backbone is the portion of the DNA double helix that provides structural support to the molecule. DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.

I hope that this helped you ;)

8 0
3 years ago
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