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Nat2105 [25]
3 years ago
8

Antioxidants help prevent damage to our cells caused by oxygen molecules that are formed by normal metabolic processes. those mo

lecules are also known as
Biology
1 answer:
arsen [322]3 years ago
4 0
<span>These molecules are called free radicals. Free radicals have an unpaired electron which can damage our cells. Antioxidants prevent damage by pairing an electron with the unpaired electron, or by neutralizing the free radical module. Eating a balanced diet rich in fruits and vegetables can provide the antioxidants people need.</span>
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Help!!!! Can anyone answer this lab questions below about mitosis!!!!
Shtirlitz [24]

Answer:

Mitosis is a division of a eukaryotic cell in which the chromosomes are evenly distributed among the daughter cells.  

In multicellular organisms, both sexual and asexual reproduction is followed by cell division, which ensures the growth and development of the organism. In addition, cell division is necessary to replace dead cells and repair injuries. New cells are constantly being added and old ones are being destroyed. About a hundred thousand more cells are created every second, and of course the same number dies. The new cells start with the division of the source cell. The cells formed in this way are called daughter cells. Stem cells can gradually divide into all the different cells in the body through mitosis.

Most of the body's cells are constantly renewed by mitosis, but there are also so-called irreplaceable cells that are formed only once in a lifetime for the life of the organism and do not regenerate by mitosis.

4 0
2 years ago
in summer, what happens to the hurricane’s temperature, category, and speed as it travels across a body of water and then land?
IRISSAK [1]

I think it starts to get slower as soon as it starts traveling because then hurricanes wouldnt be as bad and would be long, and it could possible get worse as it travels across the water because it could be sucking up water so then it would get bigger and worse. The tempertaure will get colder because it will then start to pour and cause destruction and make it windy and very chilly.

6 0
3 years ago
Which of the following is an example of a weather event?
solong [7]

The correct answer is C. A windstorm blew down trees in the Boundary Waters Canoe Area in Minnesota on July 4, 1999.

Explanation:

A weather event refers to a specific phenomenon in weather that in most cases is not common but particular and specific, which is different to weather patterns, this includes specific hurricanes, abnormal rain patterns, etc. Considering this, the one that is an example of a weather event is "A windstorm blew down trees in the Boundary Waters Canoe Area in Minnesota on July 4, 1999" because this is a specific phenomenon rather than a pattern in weather as int the case of hurricane seasons or permanent weather conditions.

3 0
3 years ago
Assume that you have 1 mL of a solution of amylase (an enzyme) at a concentration of 15 mg protein/mL. Calculate the volume of d
lidiya [134]

Answer:

42,5 mL

Explanation:

We need to use the serial dilution formula beacuse we start with a stock concentrate solution and we need to prepare a new less concentrated one.

DF=\frac{Vi}{Vf}

<u>DF in the dilution factor, Vi is the initial volume and Vf is the final volume.</u>

The first step is to have the same measurment unit so we need to convert 345 µg to mg.

we know that 1 µg equals 0,001 g, hence:

345 µg = 0,345 mg

now the final volume is 0,345 mg  protein/ mL and the inital volume is 15mg protein/mL, both of them are in the same unit so we can use the formula

DF= \frac{15mg protein/mL}{0.345mg protein/mL}

DF= 43,5 mg protein/ mL

Now since the question said that we already have 1.0mL of the amylase stock solution we need to subtract that 1.0mL to the 43,5 mg protein/mL

43,5mL-1,0mL = 42,5 mL

So, we need 42,5 mL of diluting buffer if we want a final concentration of 345 µg protein/mL (0.345 mg protein/mL)

8 0
3 years ago
The name given to the mass of living material in an organism or population is... what?
Nesterboy [21]

Answer:

Biomass

Explanation:

It is the right answer according to biology.

5 0
2 years ago
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