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Ostrovityanka [42]
3 years ago
12

Explain the two reasons why DNA changes

Biology
2 answers:
andreyandreev [35.5K]3 years ago
8 0
Reason number one DNA mutations. Sunlight ciggerate smoke and radiation can be causes as well
finlep [7]3 years ago
3 0

Answer:

1.) Mutation or outside effect

2.) The DNA copies itself

Explanation:

1.) Mutations can occur when a body is exposed to high amounts of radiation or other harmful chemicals, thus changing the DNA.

2.) In order for our bodies to grow, cells must divide and make new cells. Each time a cell makes new cells, the DNA has to copy itself for the new cell. This process is called “replication.”

hope this helped!

let me know in the comments if this was right and/or wrong!

(p.s) mark me as brainliest if you feel my answer was good enough :))

~connor

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Kim knows that today’s lab investigation will involve heating liquids over an open flame. Which apparel choice would indicate th
omeli [17]

Answer:

Apron, gloves, closed toe shoes, goggles. Kim should also tie long hair back if she has it and should roll long sleeves up.

Explanation:

Aprons, closed toe shoes, and goggles will prevent any of the liquid being heated from burning and harming her skin or eyes.

Gloves are needed to protect her hands from heat and the liquid as well.

Long hair should be tied back to prevent it from being burned or harmed from the liquid, and long sleeves need to be rolled up to prevent them from being caught on fire or dragging into the liquid.

6 0
4 years ago
Read 2 more answers
An engineer is developing a new prosthetic leg to help patients who have lost limbs to walk. The engineer is focused on making t
Karo-lina-s [1.5K]

Answer:

the engineer needs to consider alternatives for all of the areas of the design process that are considered costs

Explanation:

In order to accomplish this, the engineer needs to consider alternatives for all of the areas of the design process that are considered costs. This includes materials, marketing, manufacturing, etc. Many times the material that is being used alone can skyrocket the cost of making a specific product. Therefore changing to a new material may lack some of the wanted benefits but will reduce the overall cost. Manufacturing techniques can also drastically reduce costs by simplifying the process you save on electricity costs and worker wages, while still outputting the same amount of product, which in term reduces the overall costs of the item.

8 0
3 years ago
Which scenario would result in a population growth of zero?
Sergio039 [100]

Answer:

D

Explanation:

i took the test hopefully its right

3 0
3 years ago
A man with type AB blood is married to a women with type O blood. They have two natural children and one adopted child. The chil
Jobisdone [24]

Answer:

<em>The child with the blood type O will be adopted. </em>

Explanation:

A punnet square can be described as a diagram which is made to depict the outcomes of a cross.

To determine the possible blood groups of the children with parents having AB and O blood group, lets make a punnet square:

        O          O

A    AO      AO

B    BO      BO

The punnet square shows that the children produced will have 50 percent chance of having A blood group and a 50 percent chance of having a B blood group. Hence, we can tell that the child with O blood group is adopted.

5 0
3 years ago
Which type of tooth is mainly responsible for mechanical digestion​
Ne4ueva [31]
The molars are responsible for masticating the most, otherwise known as mechanical digestion.
4 0
3 years ago
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