Answer:
Benedict's solution can be used to test for the presence of glucose in urine. ... When reducing sugars are mixed with Benedicts reagent and heated, a reduction reaction causes the Benedicts reagent to change color. The color varies from green to dark red (brick) or rusty-brown, depending on the amount of and type of sugar.
Explanation:
Enzymes are proteins that help increase the rate of chemical reactions inside cells. These proteins are composed of many simpler molecules called amino acids. Which of the following suggests that the shape of an enzyme determines enzyme function?
answer:
Enzymes are specific to a substrate
Enzymes can operate in a wide range of conditions
Enzymes are activated by neighboring molecules
Enzymes can be found in all life forms
Answer:
enzymes are activated by molecules
Explanation:
enzymes can operate in a wide range of conditions
Answer:
enzymes are activated by molecules
Explanation:
This is leaving an area of birth or activity for another area. Movement causes a change in
population. Leaving is analogous to emigration.
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.
Which of the following is a true statement? A. Both electric fields and electric forces maintain their strength at the distance increases. B. Both electric fields and electric forces increase in strength as the distance decreases. C. Electric fields don't change in strength with distance from a charge, but electric forces do. D. Electric forces stay the same as distance changes, but electric fields change.
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What process is occurring in the illustration?
a) classic ecosystem
b) climax community
c) primary succession
d) secondary succession
Answer:
I believe its primary succession
Explanation:
Answer: C
Primary Succession
Explanation:
I took the quiz.
Scientists are concerned about a decrease in global biodiversity due to extinctions of organisms now and in the future. Scientists know about a mass extinction that wiped out the dinosaurs in a very short time. Describe a possible cause of this mass extinction and two consequences that may give scientists cause for alarm about the possibility of future mass extinctions.
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:
Which type of tectonic plate interaction forms a mid ocean ridge?
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.
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Muscle cells make up about ____________ of your body mass.
A. a quarter
B. half
C. three quarters
Answer:
I'd say B. Muscles make up about 40% of the body so the cell amount should be even.
When you are rating evidence by its value, weigh the benefits of one good fingerprint versus hair and fiber evidence. Fully explain your answer
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.
If an atom has 34 protons, 23 neutrons, and 36 electrons, what would be it's atomic number?
Answer:
34
Explanation:
it's atomic number is the same as it's number if protons
Suppose 10,000 units of energy are available at the level of the grasses. What is the total number of energy units available by the time energy reaches a coyote that eats herbivores?
Answer:
90 units........................
what are the variables in carrying capacity
Do you think that genetics is the only force behind appearance and behavior? If not, what else impacts human development? How large a part does genetics play in who you are?
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:
Watch the seven minute video on the "Mystery of the Buffalo boom" on you tube. Write a reflection on how scientists used their reasoning skills to make a claim about causes of the "buffalo boom".
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.
determining the order of events and the relative age of rocks by examining the position of rocks in a sequence is called___.
A) absolute dating
B) radiometric dating
C) relative dating
D) radiocarbon dating
Answer:
C) relative dating
Which of the following best describes the relationship between the new moon phase
and constellations?
A During the new moon phase, constellations take on different shapes due to a lack
of moonlight
B During the new moon phase, constellations are on the same side of the earth as
the sun
с
During the new moon phase, constellations are easier to see due to a lack of
moonlight
D
During the new moon phase, constellations are easier to see due to increased
sunlight
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.
What are Constellations?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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List 5 pairs of organisms that rely on each other to survive the Everglades ecosystem.
Answer: there are multiple
Explanation: but is it plants or animals your talking about
Identify 3 characteristics that plants share with algae.
Explanation:
I am sure you are clear. Thanks.
Please help it is due at 12
Show how artificial selection could be used to develop a new breed of wheat with higher fiber content
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.
What would happen in case of wheat?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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Describe how deposits of gold and copper are formed.
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
Which of the following best represents the correct sequence of letters in Photosynthesis? *
A. 1
B. 2
C. 3
D. 4
Answer:
I think it's B
Explanation:
I hope this helped :)
if all living things contain dna why does each living thing look differently
Data for the antler size of the Texas longhorn is shown here. These were introduced from Europe to the United States several hundred years ago. Over that time, the population of longhorns has evolved. Which explanation(s) could apply to the scenario shown here? Select ALL that apply.
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.
What is Evolution?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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3. How does the atmosphere benefit life on Earth?
A. It provides light to Earth
B. It breaks down dead plants and animals.
C. It filters out certain harmful rays from the Sun
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
Cuando pasa una molécula de una zona de menor concentración de sustancias a una zona de mayor concentración, el transporte implicado es
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.
Sand for beaches comes from rocks in the area that are weathered down, and
their sediment is deposited in the area beaches. The beaches are then eroded,
and the sediment is moved away from the beaches. If rocks stopped weathering,
how would the beach change?
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.
Where do substrates bind to the enzyme?
A. substrate
B. activation energy
C. active site
Answer:
C. active site
Explanation:
Substrates bind to the enzyme at active site which is where the catalytic action happens.
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Why are cells of different shapes and sizes? Give suitable examples.
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:
If two species have similar DNA sequences, it would indicate that they
A. Have no evolutionary relationship
B. Share a common ancestor
C. Are not closely related
D. Will have similar fitness
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.
What is Ancestry?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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como entra la piedra caliza en la fabricación del vidrio y del cemento?
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