PLEASE HELP AM HAVING A MENTAL Breakdown!!!


What enzyme opens up in the DNA into two single strands ?

Answer: Fabricación de Cemento: en este proceso la piedra caliza es la base del cemento, y este se crea por la combustión de una mezcla de la piedra caliza y otros materiales, aportando la propiedad de dureza.

Espero que esto ayude

Answer:

get wheat that has the desired content (in this case high fiber content)

breed them

amongst the offsprings/ wheat produced, select the ones with highest fiber content

breed them

repeat this process for many generations

Explanation:

Artificial selection is a process of selective breeding where humans choose certain traits to breed for in plants or animals.

In the case of wheat, we could use artificial selection to develop a new breed of wheat with higher fiber content by selecting individual plants with the desired traits and breeding them together over several generations.

Below are the steps:

Identify wheat plants with higher fiber content: The first step would be to identify individual wheat plants that have naturally higher fiber content. This could be done by analyzing the fiber content of different varieties of wheat and selecting those with the highest fiber content.

Crossbreed the selected plants: Once we have identified wheat plants with high fiber content, we can crossbreed them to create a new hybrid variety. This involves taking the pollen from one plant and fertilizing the flowers of another plant with it. The resulting seeds will have a mix of genetic traits from both parent plants.

Select the desired traits in the hybrid plants: After the hybrid plants have grown, we would need to evaluate them for their fiber content. We would select the plants with the highest fiber content and use them as parents for the next generation of plants.

Repeat this process for several generations: The process of selective breeding would be repeated over several generations, with each generation being evaluated for fiber content and only the plants with the highest fiber content being used for breeding. This would increase the likelihood of producing a new wheat variety with consistently high fiber content.

Test and refine the new wheat variety: Once a new wheat variety with higher fiber content has been produced, it would need to be tested for its nutritional value, taste, and other characteristics. If the new variety meets the desired criteria, it could be released for commercial production.

In summary, artificial selection can be used to develop a new breed of wheat with higher fiber content by selectively breeding individual plants with high fiber content and repeating the process over several generations until a new variety with consistently high fiber content is produced.

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Answer: c

Explanation:

when  there is lack of moonlight its easy to see star light

During the new moon phase, constellations take on different shapes due to a lack of moonlight. So, the correct option is A.

Constellation is define as a group of stars that appears to form a pattern or picture, such as Orion the Great Hunter, Leo the Lion, or Taurus the Bull. Constellations are recognizable patterns that help people navigate the night sky where there are 88 official constellations.

The groups of stars which make an imaginary shape in the night sky are called constellations which are usually named after mythological characters, people, animals and object they resemble in shape. During the new moon phase, constellations take on different shapes due to a lack of moonlight which describes the relationship between the new moon phase and constellations.

Therefore, the correct option is A.

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Answer:

Divergent plate  

Explanation:

A semi ocean ridge is formed by the interaction of divergent boundaries. Around divergent plate boundaries, as additional sea floor is formed as the Earth's tectonic plates expand outward, half ridges form. Igneous material grows to the ocean bottom when the plates split, resulting in massive basalt volcanic activity.

Answer:

90 units........................

Answer:

I'd say B. Muscles make up about 40% of the body so the cell amount should be even.

Answer:

34

Explanation:

it's atomic number is the same as it's number if protons

Answer:

C) relative dating

Explanation:

I am sure you are clear. Thanks.

Answer:

Some cells are different shapes as they have different ways of attempting to pass through the immune system they are different sizes as some of them want to make sure that the white blood cells cannot swallow them as easily at that point antitoxins are released to break them down

Explanation:

Answer:

A,B,E

Explanation: usa testprep

When a population is introduced in an area, the genetic variation thus introduced will lead to marked evolution in the species.

The question is incomplete but I will help you the much I can. Let us recall that evolution is the sum total of all the gradual changes that occurs in an organism untill it arrives at its present form.

It should be know that when a population is introduced in an area, the genetic variation thus introduced will lead to marked evolution in the species.

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Answer:

I believe its primary succession

Explanation:

Answer: C

Primary Succession

Explanation:

I took the quiz.

Answer:

Transporte activo.

Explicación:

El transporte activo ocurre cuando una molécula se mueve de un área de menor concentración de sustancias a un área de mayor concentración. Los transportes activos utilizaron energía en forma de ATP para mover moléculas en contra del gradiente de concentración. Es lo opuesto al transporte pasivo en el que no se requiere energía para mover moléculas de una región a otra. La principal razón de que ocurra el transporte activo es que mueve moléculas en contra del flujo de difusión. En difusión, la molécula se mueve de un área de mayor concentración a un área de menor concentración.

Answer: Conviction based on the support of the physical fingerprint is a more reliable evidence over hair and fiber evidences.

Explanation:

Physical fingerprint has more value than hair and fiber evidences. As no two fingers can have exactly alike fingerprints belonging to the same person. The fingerprints of two identical twins cannot be alike but DNA evidence obtained from hair, fiber, or any other biological evidences can show similarity. Thus physical fingerprint have more value over DNA fingerprint it can directly related to a suspect to whom it belongs to depending upon the uniqueness of the minutiae characteristics.

Answer:

I think it's B

Explanation:

I hope this helped :)

Answer:

Mass extinctions happen because of climate change, asteroid impacts, massive volcanic eruptions or a combination of these causes. One famous mass extinction event is the one that lead to the extinction of dinosaurs, 65 million years ago.

Explanation:

Answer:

C. It filters out certain harmful rays from the Sun

Explanation:

A: the Sun is what provides light to Earth

B: decomposers break down dead plants and animals

So C: It filters out certain harmful rays from the Sun, is correct

Answer:

C. active site

Explanation:

Substrates bind to the enzyme at active site which is where the catalytic action happens.

Hope this helps, thank you :) !!

Answer:

In the "Mystery of the Buffalo boom" scientists first try to find the answer in the two most common things that can affect a population of animals.  Food and predators.

First, they studied the buffalos' food supply, grass. They found that there has not been an increase in it so that the number of buffalos multiplied.

Then they studied the predator's population, and they found that there was not a decrease in the number of them that could affect the buffalos increasing numbers.

As the two main things that controlled a population were not affected, they had to find other causes. The next thing that they studied were historical facts about buffalos and diseases. Scientists discovered that a virus that affected cows had impacted these animals too, which was the cause of a considerable decrease in the buffalo's population many years back.

Due to the drastic impact that the rinderpest had on cows, a vaccination plan was implemented. As the cows now were protected against this virus, the virus could not reproduce as it did, ending the spreading of this disease in cows. As a consequence, the buffalos were no longer infected, and their population grew thanks to the vaccination plan.

In conclusion, when the most common things that can affect a population are not the cause, we have to look into the past and find what has changed and how it impacted the animals. It is using logical thinking skills to determine what has changed and what that change made.

Explanation:

In the video "Mystery of the Buffalo boom" the ecologist Tony Sinclair found an abnormal buffalos' number in Tanzania. As the increase in the buffalos' population was something unusual, he knew that something had changed, but he did not know what. Sinclair, with other scientists, used their reasoning skills and thought that the two most logical things that can affect a population are food and predators. When they studied these two variables, they found out that they were not the problem. The next step was to look for past events that impacted buffalos. They found out that a virus, which directly affected cows but also buffalos, had been erased from the Earth thanks to a vaccination plan. As a result, the disease spreading between cows stopped, and as a consequence, it also stopped between buffalos.

We can see that everything is connected and that by using reasoning skills and logic, scientists could determine what happened.

Explanation:

90% sure its gonna be B lol

If the DNA sequences of two species are identical, this would indicate that they share a common ancestor. So, the correct option is B.

An ancestor is also called forefather, fore-elder, or a forebear. It is defined as the parent of the parent or predecessor. An ancestor is any person from whom one is descended living in law, a person from whom property is inherited.

Ancestry links genetics and society in fundamental ways, while it has cultural, religious or political significance, and can play an important role in shaping personal and public identity.

Homologous can occur when different species have similar anatomy that is shared due to ancestry or shared due to similar selective pressures.

Thus, if the DNA sequences of two species are identical, this would indicate that they share a common ancestor. So, the correct option is B.

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Answer:

Yes.

Explanation:

Yes, Leaving is analogous to emigration because in emigration the person leaves the country permanently and settles in another country for the job. There are many reasons of emigration of a person such as job opportunities in another country, warfare in the country etc. In emigration, the person leaves the country permanently and settles in another country to made his social status better in the society. There are good job opportunities that force people to leave their country.

Answer:

Genetics play a part in who you are by creating the way you look, or what your appearence looks. Behavior can be a different thing, some types of common behaviors or sicknesses do show up, but the way you act most of the time is your choice, not your genetics. Sometimes your genes can limit you to some things but if there is a certain way you want to behave, thats on you.

Explanation:

Answer:

Gold are formed in the

Part of the Gold exhibition. Gold may occur as deposits called lodes, or veins, in fractured rock. It may also be dispersed within Earth's crust. Most lode deposits form when heated fluids circulate through gold-bearing rocks, picking up gold and concentrating it in new locations in the crust.

Explanation:

Copper formed in the

Most nonrecycled supplies come from porphyry copper deposits (PCDs), which form when hot, metal-bearing fluids percolate up through Earth's crust. ... These fluids bubble up through the crust and collect in pores in the rock, where they sit, waiting for the final step that will allow them to form copper minerals.Jun 7, 2015

Answer: there are multiple

Explanation: but is it plants or animals your talking about

Answer:

enzymes are activated by molecules

Explanation:

enzymes can operate in a wide range of conditions

Answer:

enzymes are activated by molecules

Explanation:

Answer:

Beaches would shrink until they were no longer there because the sediment is pulled away from the shores by the tide and there would be no new rock sediment to replace the old rock sediment.