Answer:
El propósito de la separación de poderes es evitar la concentración de poder sin control y proporcionar frenos y contrapesos, en los que los poderes de una rama del gobierno están limitados por los poderes de otra rama, para prevenir abusos de poder y evitar la autocracia.
Explanation:
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A team of researchers is studying the distance between ribosomes attached to the rough ER in a type of cancer cell. The researchers are writing a grant to provide support for a microscope to use to study this. They need to purchase a microscope with a very high magnification to observe the distance between individual ribosomes in a cross section of a cancer cell. Based on the information given, what type of microscope would you suggest
Answer:
The correct answer is - Electron microscope.
Explanation:
The electron microscope is one microscope among all other types of microscope that has the ability to get high magnification and resolution levels, That helps in look and study things right down to each individual atom.
The light microscope is not able to show direct structures of the cell components such as cell membrane, ribosomes, ER, and other organelles. To see them we need to achieve the high magnification power that is provided by an electron microscope.
Samuel has a block of modeling clay, three heavy blocks, and a hot plate covered by a tray as shown. How could he use these items to model the process of an existing rock becoming a metamorphic rock, according to the rock cycle, and to model the flow of energy that drives this process?
Answer:
Block of modeling clay is placed under three heavy blocks, and a hot plate covered by a tray.
Explanation:
Block of modeling clay is placed under three heavy blocks, and a hot plate covered by a tray is used for forming a metamorphic rock. Metamorphic rocks are formed when the rocks are placed to high heat, high pressure, hot mineral-rich fluids or combination of all these three factors. Conditions like these are found deep within the Earth so by placing block of modeling clay is placed under three heavy blocks, and a hot plate covered by a tray formed metamorphic rock.
Which is one factor that adds to the greenhouse effect
Answer:
The gases that contribute most to the Earth's greenhouse effect are: water vapour, carbon dioxide, nitrous oxide, methane and ozone. The contribution that a greenhouse gas makes to the greenhouse effect depends on the amount of it that it is the atmosphere and how much heat that particular gas absorbs and re-radiates.
Explanation:
Answer:
An increase in gases in the atmosphere that absorb heat
Explanation:
Greenhouse gases such as CO2, can trap heat and alter our climate and to some extent cause the greenhouse effect.
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Two haploid daughter cells are produced during what phase
Answer:
The phase in which two haploid daughter cells are produced is telophase.
Explanation:
Viruses can't replicate without a host cell.
A. True
B. False
Answer:
True
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Explanation:
Viruses cannot reproduce by themselves, they must have a living host cell in order to multiply.
Create an argument to help inform your community about the impacts of sprawl on wetland ecosystems and ways to protect wetlands from further decline. Use evidence and scientific reasoning to support your response.
Answer:
Negative impact.
Explanation:
There is a negative impacts of sprawl on wetland ecosystems because it destroys the habitat of thousands of organisms. Making laws to restrict housing in a wetlands and avoiding making houses on the wetland are the ways to protect wetlands from further decline. Human activities is the main factor that causes harm to wetland ecosystem so sprawl has adverse impact on wetland ecosystem.
Mutations of the DNA are only passed on to future generations if the change occurred in a –
A. sperm or egg cell.
B. cancerous liver cell.
C. brain cell.
D. mutated skin cell.
Answer:
A. sperm or egg cell............
How is respiration and combustion similar
A. Both produce water and oxygen
B. Both produce fuel and oxygen
C. Both use carbon dioxide and water to produce fuel
D. Both use oxygen and fuel to produce carbon dioxide and water
Answer:
Both Respiration and Burning uses oxygen. Both Respiration and Burning produces energy. Both Respiration and Burning gives out carbon dioxide as the end product. The overall chemical reactions of both Respiration and Burning are the same.
Answer:
D
Explanation:
Both Respiration and Burning uses oxygen. Both Respiration and Burning produces energy. Both Respiration and Burning gives out carbon dioxide as the end product. The overall chemical reactions of both Respiration and Burning are the same.
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7.10(A) Increased human populations can lead to the depletion of locally available
resources within communities. Compared to other communities, which of these locally
available resources is most likely to be depleted in desert communities?
A. Mineral
B. Oxygen
C. Gasoline
D. Water
Answer:water
Explanation:
In comparison with other communities, the locally available resource which is most likely to be depleted in desert communities is: D. water.
What is a desert?A desert can be defined as an extremely dry area of land that is characterized by sparse vegetation, especially due to very low rainfall and precipitation.
Generally, the amount of water available for plants and other living organisms in all deserts is usually very little (low).
In conclusion, we can infer and logically deduce that water is the locally available resource which is most likely to be depleted in desert communities.
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tại sao lại có sấm sét
Khi hai đám mây tích điện trái dấu lại gần nhau, hiệu điện thế giữa chúng có thể lên tới hàng triệu vôn. Giữa hai đám mây có hiện tượng phóng tia lửa điện và ta trông thấy một tia chớp. Vài giây sau ta mới nghe thấy tiếng nổ, đó là sấm (do vận tốc ánh sáng nhanh hơn vận tốc của tiếng động nên ta trông thấy tia chớp trước). Khi đám mây dông tích điện đi gần mặt đất tới những khu vực trống trải, gặp một vật có độ cao như cây cối, người cầm cuốc xẻng… thì sẽ có hiện tượng phóng tia lửa điện giữa đám mây và mặt đất. Đó là hiện tượng sấm sét.
what are the causes of cancer????
Answer:
Explanation:
Cancer is caused by changes (mutations) to the DNA within cells. The DNA inside a cell is packaged into a large number of individual genes, each of which contains a set of instructions telling the cell what functions to perform, as well as how to grow and divide
A(n) ________________________is all of the individuals of one species that live together in one place at one time.
A population is all of the individuals of one species that live together in one place at one time.
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If the parent has 8 chromosomes
and reproduces asexually, how
many chromosomes will the
offspring have?
A. 4
B. 8
C. 16
Answer:
B. 8 chromosomes
Explanation:
If the parent has 8 chromosomes and reproduces asexually, then the offspring will also have 8 chromosomes.
The reason is that the offsprings will be the exact clones of their parents, in asexual reproduction.
The offsprings also have the exact and same number of chromosomes of their parents. So, option (B) is the answer.
B.8
They will have the same chromosomes, and will also have the exact same chromosome number that the parent had.
So, in this situation, the offspring will also have 8 chromosomes.
Which of the types of cells in T. adhaerens contain cilia? (Choose all that apply)
gland cells
cylinder cells
fiber cells
cover cells
Answer:
Its Gland cells, Cylinder cells, and Cover cells
Explanation:
Cells like Gland cells, Cylinder cells, and Cover cells contains cilia in T. adhaerens.
What is T.adhaerens?Trichoplax adhaerens is one of the three named species in the phylum Placozoa. They have two cellular layers: the top epitheloid layer is made of ciliated (cover cells) flattened toward the outside of the organism, and the bottom layer is made up of cylinder cells that possess cilia used in locomotion, and gland cells that lack cilia.
Moreover, trichoplax generally has a thinly flattened, plate-like body in cross-section around half a millimetre, occasionally up to two or three millimetres. The body is usually only about 25 µm thick.
Therefore, these colorlessly gray organisms are so thin they are transparent when illuminated from behind, and in most cases are barely visible to the eye.
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Why could a loss of chlorophyll limit cellular respiration in plants?
A. there would be too much oxygen to produce.
B. there would be less glucose produce for respiration.
C. there would be too much carbon dioxide produced.
D. there would be more ATP molecules produce.
Answer:
the answer is option B as chlorophyll is used to.mske glucose whivh is later utilized in respiration
Whats the summary Galapagos finch evolution
Answer:
Darwin's finches are a classic example of an adaptive radiation. Their common ancestor arrived on the Galapagos about two million years ago. During the time that has passed the Darwin's finches have evolved into 15 recognized species differing in body size, beak shape, song and feeding behavior.
What is the term for the phenomenon of current produced by light striking a piece of reflective material?
Answer:
specular reflection
Explanation:
specular reflection is defined as light reflected from a smooth surface at a definite angle
Question 9 of 10
What could a human living now and a horse living thousands of years ago
have in common?
A. They need the same amount of energy to survive.
B. They have the exact same DNA.
C. They are made of some of the same matter.
O D. They both get their energy directly from the sun.
SUBMIT
Answer:
they're made of some of the same matter
WHAT WOULD HAPPEN IF WE STOPPED
MONITORING HOW MUCH NON-
RENEWABLE RESOURCES WE USE
Science
If we don't track the usage of important non-renewable resources, the certain non-renewable recourse would cease to exist.
This could affect the world tremendously, and everyone could die, as well.
Pacemakers maintain the heartbeat in people who suffer from certain defects. The function of an artificial pacemaker is to send electrical impulses that will contract the heart muscles and regulate the pumping of the heart. Which condition could be corrected by a pacemaker?
slow heart rhythm (bradycardia)
Explanation:
when a persons heart beat is not normal is typically let's say 60-100 beats per minute that means the blood is not pumped properly throughout the body. so the pacemaker works as an heart machine to keep your heart beating.
Question 6 of 10
Which type of protein controls what moves into and out of cells?
A. Fibrous
B. Complex
C. Membrane
D. Enzyme
SUBMIT
What is the smallest taxonomic group that contains organisms of different species?
genus
order
family
domain
Select ALL of the molecules that are
produced in cellular respiration and are reactants in photosynthesis.
Answer:
6Carbon Dioxide (CO2) + 6Water (H2O) + energy
Explanation:
The products for cellular respiration are the same as the reactants in photosynthesis. Each process is dependent upon the other. The results/products of cellular respiration are 6 carbon dioxide molecules and 6 water molecules along with the releasing of energy. In photosynthesis energy is absorbed in cellular respiration energy is a byproduct.
How is a job in fish and wildlife management different from one in forestry?
Answer:
The wildlife manager's job is to maintain the number of animals in a habitat at or below the habitat's carrying capacity so that no damage is done to the animals or to their habitat. In a sense, a wildlife manager's task is similar to a rancher's.
Explanation:
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Homologous structures are structures found in one species that have the same basic anatomical structure and embryonic origin as those found
In another species. If homologous structures are found on organisms of two different species, the species are related, even if only distantly.
Which of the following structures are homologous and illustrate evidence of an evolutionary relationship?
OA
a wasp's wing and a dolphin's flipper
OB
a bird's wing and a butterfly's wing
Ос.
a whale's flipper and a cat's leg
OD.
a catfish's fin and a bee's antenna
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Answer:
Yhyn
Explanation:
Yh
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Cancer cells do not respond to signals
that regulate what process?
A. transcription
B. cell cycle
c. metabolism
Answer: Cell cycle, B
Cancer cells do not respond to the signals that regulate the process of cell cycle. The correct option is B.
What signals do cancer cells respond?Cancer cells do not respond to signals that regulate the cell cycle. The cell cycle is the process by which cells grow, divide, and create new cells. Normally, cells are tightly regulated by signals that tell them when to start and stop the cell cycle.
However, cancer cells have mutations that allow them to ignore these signals and continue dividing uncontrollably. This leads to the formation of tumors and the spread of cancer throughout the body.
Cancer cells often ignore signals that regulate the cell cycle, leading to uncontrolled growth and division, which ultimately contributes to the formation of tumors.
Therefore, the correct option is B.
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how does the digestive system help the body maintain homeostasis? if it doesn't function correctly how does it affect the body?
Answer:
The bacterial flora in the intestines are essential to homeostasis in the body. They not only break down food so the nutrients can be absorbed, they produce vitamins like biotin and vitamin K and guard against harmful bacteria that enter the system
Explanation:
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what specific actions or events affect climate change in the sahara desert
Answer:
In the future, the Sahara and Sahelian regions could experience more rainfall than today as a result of climate change. Wetter periods, termed African humid periods, occurred in the past and witnessed a mesic landscape in place of today’s hyperarid and semiarid environment. Such large past changes raise the question of whether the near future might hold in store similar environmental transformations, particularly in view of the growing human-induced climate, land-use, and land-cover changes. In the last decades, geoengineering initiatives (in the form of active re-greening projects of the Sahara and Sahel) have been proposed and could have significant effects on the climate of the region. Here, we synthesize the literature on past and projected changes in the hydroclimate of the Sahelian-Saharan region and the associated feedbacks. We further address the current state of knowledge concerning Saharan and Sahelian afforestation projects and their consequences. Our review underscores the importance of vegetation in land-atmosphere-ocean feedback processes and the far-field impacts of northern African ecosystem changes.
Explanation:
Fun facts:
In the future, the Sahara and Sahelian regions could experience more rainfall than today as a result of climate change. Wetter periods, termed African humid periods, occurred in the past and witnessed a mesic landscape in place of today's hyperarid and semiarid environment.
Where in a data table should units of measurement be shown?
Answer:
In a data table, units of measurement should be indicated in the headings of the columns where the data values are listed. This shows that the indicated unit applies to all the data values listed in the column.
Answer
In a data table the units of measurement should be shown in the heading of columns that list the data value.
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