please help me i will mark brainliest if the answer is right i need to do this extremely soon ​

DNA replication is a truly amazing biological phenomenon. Consider the countless number of times that your cells divide to make you who you are—not just during development, but even now, as a fully mature adult. Then consider that every time a human cell divides and its DNA replicates, it has to copy and transmit the same sequence of 3 billion nucleotides to its daughter cells. Finally, consider the fact that in life (literally), nothing is perfect. While most DNA replicates with fairly high fidelity, mistakes do happen, with polymerase enzymes sometimes inserting the wrong nucleotide or too many or too few nucleotides into a sequence. Fortunately, most of these mistakes are fixed through various DNA repair processes. Repair enzymes recognize structural imperfections between improperly paired nucleotides, cutting out the wrong ones and putting the right ones in their place. But some replication errors make it past these mechanisms, thus becoming permanent mutations. These altered nucleotide sequences can then be passed down from one cellular generation to the next, and if they occur in cells that give rise to gametes, they can even be transmitted to subsequent organismal generations. Moreover, when the genes for the DNA repair enzymes themselves become mutated, mistakes begin accumulating at a much higher rate. In eukaryotes, such mutations can lead to cancer.

Answer:

The correct answer is - genetic drift takes place due to disaster in favor of a green wing patch.

Explanation:

In this given scenario there is disaster happened that wiped out 50% of a population of birds in which half had green wings and the rest half had blue wing birds before the catastrophe.

Due to this sudden catastrophe, the genetic drift occurred and also reduced the population to half and the ratio of both types of birds changed and favored the green wings as they are better adapted for the new conditions.

Answer:

Water is important in chemical weathering because most substances dissolve in water.

The process of dissolving breaks up the minerals in the rock into small pieces. The small pieces mix with water to form.  

Acids are also agents of chemical weathering and cause more chemical weathering than pure water does.

Answer:

Water

Explanation:

Just because.

Actually, most substances dissolve in water, and it dissolves more substances than any other liquid.

.

Answer:

An organism's DNA affects how it looks, how it behaves, and its physiology. So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation. Without modification, growth could not occur. i hope this help

Explanation:

Answer:

C and D

Explanation:

That's what USA Test Prep said                                                                                                                                                                                                        

Ciliates and fungi diverged more recently than ciliates and flagellates and  Ciliates are more closely related to animals than they are to flagellates shows hypothetical model of the  relationships between groups of organisms.

Hypothetical modeling involves the design and analysis of basic hypothetical systems to represent complicated social phenomena for the purpose of understanding those social phenomena.

Hypothetical modeling is contrasted with both computer simulation and lab experiments to emphasize its key characteristics.

In analogy with laboratory experiments, hypothetical models can be viewed of as scientific representations that aim to isolate, hypothetically, the working of causal mechanisms or capacities from disrupting influences.

Ciliates and fungi diverged more recently than ciliates and flagellates and  Ciliates are more closely related to animals than they are to flagellates shows hypothetical model of the  relationships between groups of organisms.

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Answer:

D. Haploid - 4

Explanation:

Hope this helps

Answer:

WELL here's what it does to your body... (please read all of it...thank u)  

Let's start with what is cancer? Cancer is an uncontrolled growth of abnormal cells in the body. Cancer is caused by a mutation in DNA cells. The DNA inside a cell is packed into a large number of individual genes. Those genes in the cell, each contains a set of instructions telling the cells what types of functions to perform as well as how to grow and divide into more cells. Kind of like a little increased cell factory like system. Errors in the 'instructions' can cause the cell to stop its normal work and functionality and allow a cell to become cancerous.  

Soo... gene mutations can instruct healthy cells to allow and naturalize excessive growth or rapid growth in cells to divide. So then all the new cells are infected and mutated. It can also fail to stop unhealthy rapid growth. Basically, cancer cells lose control in the factory and basically keep on spreading and growing an unhealthy amount till it gets deadly. Just kidding but basically thats what it means. AND gene mutations also make "mistakes" when they try to fix DNA errors. Which then are lead to turn into cancerous cells.  

Now, what causes gene mutation? Gene mutation can be caused by one of many reasons. Two of the main reasons is being born fresh out your mommas womb. You could be born with a genetic gene mutation you most likely inherited from your parents. OR it could be caused by the enviroment you live in. Causes such as smoking, radiation, obesity, harmones, etc. and a lack of exercise.  However, cells contain a mechanism that recognizes when a mistake occurs and repairs the mistake. But occasionally, a mistake is missed... which therefore results in a cell becoming cancerous.

MEANING:

Cancer is bad for your body. periodt.

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Hope you learned something!!!

GL :)

Answer:

Grass, Option B

Explanation:

If the beetle population increased then they would be eating more grass, which would negatively impact the ecosystem because you need everything stabilized in the environment.

Answer:

B. grass

Hope it helps

Please mark me as the brainliest

Thank you

Answer:

a _|_ y. is the correct answer.

Answer:

2

Explanation:

I can't really understand what it is but my best guess would be too

Answer:

where is the statement (i will just give you some info coz i dont know what to answer <3)

Explanation:

We have rocks from the Moon (brought back), meteorites, and rocks that we know came from Mars. We can then use radioactive age dating in order to date the ages of the surfaces (when the rocks first formed, i.e. when the lava cooled and crystallized). We also have meteorites from asteroids and can date them, too.

Answer:

C

Explanation:

C states that the surviving species exploite a newly available niche. When an animal migrates is trying to find food or more livable conditions. C is true because migrating usually occurs when animals want to find other new places to fit their circumstances or living conditions.

This is an example that states how the surviving species exploit a newly available niche (Option C).

In biology, the term niche refers to the match between the features of a given species and particular environmental conditions.

In conclusion, this is an example that states how the surviving species exploit a newly available niche (Option C).

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Answer:

Bony Fish

Explanation:

i got it right on my test!

Answer:

Bony fish

Explanation:

I got it right on edge

Answer:

A protist is a eukaryote that isn't an animal, plant, or fungus.

Answer:

a single celled organisms of the kingdom Protista, such as a protzoan or simple alg.

Answer:

false

Explanation:

please mark brainliest

Answer:

cell, tissue, organ, organ system, organism

Explanation:

a group of cell make tissue.....

Answer:

The medulla of our brain is the control center of our heart rate. It either slows or speeds the heart beats per minute.

Explanation:

Answer:

Hydrogen

Explanation:

2 between A-T and 3 between G-C

Answer:

A germline mutation occurs in a sperm cell or an egg cell and is passed directly from a parent to a child at the time of conception.

Explanation:

Answer:

c

Explanation:

Answer:

A

Explanation:

it changes colors to its enviorment

to hide away from predators

and be invisible for prey

mark b r a i n l i e s t

if u would be so k i n d

Answer:

Educate to change consumption and lifestyles.

Invent new water conservation technologies.

Recycle wastewater.

Improve irrigation and agricultural practices.

Appropriately price water.

Develop energy- efficient desalination plants.

Improve water catchment and harvesting.

Explanation:

Answer:

True

Explanation:

This is because a chemical equation is the equation where chemical reactions are represented with symbols involving both reactants and products.

The reactants are written on the left hand side and products are written on the right hand side. Symbols are use to represent the chemical elements involved in the reaction. Solid, liquid and aqueous are also use as indicator whether the reactions are in that form.

Answer:

Eukaryotic in nature. They are higher classes of Eukaryotic organisms

Answer: first one muscular, 2 exoskeleton

Explanation:

Answer:

Vague, but I think you are talking about duplication or mitosis

Explanation:

Mitosis is duplicating DNA to make two geneticly identical daugher cells

Duplications is just unwinding the DNA to make a second copy