Answer:
yes,maglev is only available in China and maglev transport systems are now operational in just three countries (Japan, South Korea and China).
Explanation:
Answer:
answer
Explanation:
Jenna is helping her family decide which water filtration technology they should install in their house. Which of these provides the correct reasoning for method Jenna and her family should choose?
A.reverse osmosis because it requires no filters, and removes all contaminants such as bacteria and chemicals
B.ultraviolet radiation because it requires no filters, and removes all contaminants such as bacteria and chemicals
C.ultraviolet radiation because it requires no energy, and removes all contaminants such as bacteria and chemicals
D.reverse osmosis because it requires low maintenance, and removes all contaminants such as bacteria and chemicals
Answer:
B
Explanation:
The water filtration technology they should install in their house is reverse osmosis because it requires low maintenance, and removes all contaminants such as bacteria and chemicals.
Reverse Osmosis Systems have a totally excessive effectiveness in doing away with bacteria (for example, Campylobacter, Salmonella, Shigella, E. coli); Reverse Osmosis Systems have a totally excessive effectiveness in doing away with viruses (for example, Enteric, Hepatitis A, Norovirus, Rotavirus).
How does reverse osmosis work ?Reverse osmosis works through shifting water via a semipermeable membrane to filter and flush away any contaminants. Reverse osmosis structures are quality appropriate for home use and offer a surprisingly green manner to purify your ingesting water at home.
Thus it is well explained.
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What is the name of length of time needed for us to pay back our oxygen debt?
O2 oxygen debt time may vary from individual to individual, but the average is 2 minutes for normal individuals.
What is O2 Oxygen Debt?Oxygen debt is a physiological phenomenon that occurs when someone consumes oxygen at a faster rate than it can be replaced, leading to an oxygen deficit that causes increased respiration as the body tries to replace used oxygen.
With this information, we can conclude that the time of o2 oxygen debt can vary from individual to individual, but the average is 2 minutes for normal individuals.
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Why is unlined landfill a point source pollution
PLEASE HELP
Answer:
Septic systems is the BEST example of a non-point source of water
pollution.
Explanation:
Residue from inappropriately oversaw building destinations, harvest and woods terrains, and disintegrating streambanks. Salt from water system practices and corrosive seepage from surrendered mines. Microbes and supplements from domesticated animals, pet squanders and broken septic frameworks. Residue from inappropriately oversaw building locales, harvest and woods grounds, and disintegrating streambanks.
In 5-7 sentences, briefly define evolution and natural selection, then analyze the differences between the two concepts.
Answer:
evolution is change over a period of time
Based on the data, what is the probability a randomly chosen cell will be observed undergoing cell division? You may use the calculator. A.15% A. 15% B.18% B. 18% C.30% C. 30% D.85% D. 85%
Answer:
A
Explanation:
The active state of cell division covers the prophase, metaphase, anaphase, and telophase. The total number of observed cells that were undergoing cell division can, thus, be calculated by adding the number of cells in each stage of the cell division.
Total number of cell in division = 20+4+2+4
= 30
Probability that a randomly chose cell will be undergoing cell division = number of cells in division/total number of cells
= 30/200
= 0.15 or 15%
The correct option is, therefore, A.
If a certain organism is a secondary consumer, what best explains its position in the food web?
X, because organism X feeds on producers
Y, because organism Y feeds on producers
X, because organism X feeds on a carnivore
Y, because organism Y feeds on a herbivore
Answer:
Y because organism y feed on herbivore
Explanation: using process of elimination this one makes sense and i got it right on the test.
Matthias Schleiden and Theodor Schwann looked at plant and animal cells. Schwann wrote the first part of what is known as the cell theory. Which statement did he write? A. All organisms are composed of one or more cells. All cells come from existing cells. B. All organisms are composed of one or more cells. The cell is the basic unit of life in all living things. C. All cells come from existing cells. The cell is the basic unit of life in all living things. D. All cells are microscopic in size. All cells come from existing cells.
Answer:
B. all organisms are composed of one or more cells. the cell is the basic unit of life in all living things.
Explanation:
This is the first part of the cell theory.^-^
During which era did the last tyrannosaurus live
Answer:
Cretaceous
rex live? T. rex lived about 66–68 million years ago during the Cretaceous Period in the western United States, including Montana and Wyoming.
Explanation:
Answer:
super man
Explanation:
super man
PLEASE I NEED HELP NOW!! this is from a Gizmo//Mutation and Selection, Compare the fitness to percentages to the insect colors. How does fitness relate to the color of the insects
how do the geocentric and heliocentric models of the solar system differs?
Answer:
The main difference is that the geocentric has the Earth at the center, and the heliocentric has the sun at the center.
Answer:
The geocentric has the Earth at the center while the heliocentric has the sun at the center.
Explanation:
:)
What is the starting point for an argument?
a
Counterclaim
b
Bridge
c
Claim
d
Support
Answer:
i think its c
Explanation:
Answer:
c
Explanation:
claim
What is the definition of malignant?
Answer:
Malignant cells can invade and destroy nearby tissue and spread to other parts of the body.
Answer:
(of a disease) very virulent or infectious. a
Explanation:
(of a disease) very virulent or infectious.
A cross between a white rooster and a black hen results in 100% blue offspring. When two of these
blue offspring are mated, the probable phenotypic ratio seen in their offspring would be
A) 1:1:2 B) 3:1 C) 1:2:1
D) 2:1:1
Answer:
c
Explanation:
they each contain a gene from their father, their mother, and themselves, since they are both blue there will be 2 blue genes, 1 black and 1 white
A cross between a white rooster and a black hen results in 100% blue offspring, so when two of these blue offspring are mated, the result is 1:2:1, which is option c, as 1 is white, 2 are blue, and 1 is black.
What is the significance of the genetic crossing?Due to incomplete dominance, genetic crossing occurs between two animals, such as one black hen and one white rooster, and the offspring are blue. When these two heterozygous blue birds cross, a total of four hens and roosters offspring are formed: 1 is black, 1 is white, and 2 are blue and this genetic crossing can also increase genetic diversity within a population due to meiosis.
Hence, a cross between a white rooster and a black hen results in 100% blue offspring, so when two of these blue offspring are mated, the result is 1:2:1, which is option c, as 1 is white, 2 are blue, and 1 is black.
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Fermentation is a process where
organic compounds are broken down in the presence of oxygen
most of the ATP is made in cellular respiration
sugars are created in photosynthesis
organic compounds are broken down in the absence of oxygen
Answer:
organic compounds are broken down in the absence of oxygen
Explanation
for example alcoholic fermentation done by Saccharomyces Cerevisae
C6H12O6-->2CO2+2C2H5OH
What do tissues working together form?
Organisms
Organ systems
Organs
Cells
Answer:
Groups of tissues working together form organs, which work together in systems. specialized cells, they can only do so much on their own. Tissues working together overcome this limitation to form organs. An organ is made up of different tissues working together to perform a specific task.
Explanation:
Hope this helps!
PLEASE HELP IM TIMED.
Both an electric motor and a generator spend an electromagnet inside of a permanent magnet. However, the input and output energies are different. Explain the differences.
Answer:
An electric motor converts electricity into mechanical energy, providing a power source for machinery. A generator does the opposite of this, converting mechanical energy into electricity.
Explanation:
A. How do the oxygen (O2) and carbon dioxide (CO2) levels change over time?
Answer: How does CO2 level affect oxygen production? increasing CO2 production increases oxygen production. ... Greater flow of oxygen corresponds to a higher rate of photosynthesis.
Explanation:
Oxygen ( O₂ ) and carbon dioxide ( CO₂ ) levels change over time ;
Due to man-made and natural processes
Natural processes such as Photosynthesis and the storage of carbon in the biosphere and hydrosphere. cause a varying change in the levels of CO₂ present in the atmosphere because during photosynthesis CO₂ is used by green plants while the amount of stored carbon in the hydrosphere affects the level of available carbon in the atmosphere in general.
Man-made processes which includes the burning of fossil fuels and the release of CFC's into the atmosphere through gas flaring also the indiscriminate burning of bushes contribute immensely to the levels of carbon found in the atmosphere.
Hence we can conclude that Oxygen ( O₂ ) and carbon dioxide ( CO₂ ) levels change over time ; Due to man made and natural processes
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How do animals add carbon dioxide to the atmosphere?
A. breathing
B. evaporation
C. cellular respiration
D. transpiration
equation of cellular respiration
C6H12O6+6O2--->6CO2+6H20
from this equation we can see that co2 is a product so the answer is C
Which statements best describe shared characteristics? Select two options.
a. Shared characteristics always exist in the common ancestor and in the modern organism
b. Shared characteristics never exist in the common ancestor or in the modern organism.
c. The more characteristics organisms share, the more closely related they are.
d. The fewer characteristics organisms share, the more closely related they are.
e. Shared characteristics can exist among organisms that belong to different species.
f. Shared characteristics only exist among organisms that belong to the same species.
Myosin is plentiful in muscle cells, but is not found at all in lens cells. Lens cells contain large amounts of crystallins, which are not found in muscle cells. Why do some proteins appear in one type of cell but not in another?
Matthias Schleiden and Theodor Schwann looked at plant and animal cells. Schwann wrote the first part of what is known as the cell theory. Which statement did he write?
A.
All organisms are composed of one or more cells. All cells come from existing cells.
B.
All organisms are composed of one or more cells. The cell is the basic unit of life in all living things.
C.
All cells come from existing cells. The cell is the basic unit of life in all living things.
D.
All cells are microscopic in size. All cells come from existing cells.
how does sequencing genes provide evidence for evolution
Answer:
how does sequencing Gene's brain function as an instrument for me and my
As the ability to sequence the nucleotides making up DNA has improved, it also has become possible to use genes to reconstruct the evolutionary history of organisms. Because of mutations, the sequence of nucleotides in a gene gradually changes over time.
which scenarios are examples of artificial selection?
A: breeding certain cows for increased milk production
B: farmers planting seeds from only most productive crops
C: bacteria becoming more resistant to human antibiotics
D: creating a new breed of dog that js hypoallergenic
Answer:
D
Explanation:
Science has altered it
how are the genetics of people and the corona different?
Answer:
biology
Explanation:
The deforestation of rainforests in South America is an example of what specific type of
threat to biodiversity?
Answer:
habit destruction
Explanation:
deforestation gets rid of homes to the animals.
Does the stratosphere have a high or low temperature also what is the temperature
Answer:
Explanation:
The stratosphere is the second-lowest layer of Earth’s atmosphere, starting at 10 kilometers above the surface. Unlike the troposphere, the temperature in the stratosphere increases with altitude. At the top, the temperature is around 32°F – almost 100 degrees higher than the bottom.
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Marshes, deltas, beaches, and barrier islands are created when sediment is dropped off by agents like waves, wind, and rivers. What process is responsible for the formation of these environments?
Weathering
Deposition
Erosion
Stratification
Answer:
Deposition
Explanation:
Deposition is the geological process by which material is added to a landform or land mass. Fluids such as wind and water, as well as sediment flowing via gravity, transport previously eroded sediment, which, at the loss of enough kinetic energy in the fluid, is deposited, building up layers of sediment.
What causes the atrioventricular valves to close during a heartbeat? a Pressure in the atria is higher than in the ventricles. b Pressure in the atria is lower than in the ventricles. c Pressure in the arteries is higher than in the ventricles. d Pressure in the arteries is lower than in the ventricles.
Answer:
The correct answer is - b Pressure in the atria is lower than in the ventricles.
Explanation:
The atrioventricular valves close when the pressure in the ventricles is more than the pressure in the atria. Which leads to the contraction of the papillary muscles to shut the leaflets of the valves,
When the ventricles relax, atrial pressure exceeds ventricular pressure, the AV valves are pushed open and blood flows into the ventricles. However, when the ventricles contract, ventricular pressure exceeds atrial pressure causing the AV valves to snap shut.
For separate ecosystems to be classified as the same type of biome they must
Answer: It should be C.
Explanation:
For separate ecosystems to be classified as the same type of biome, they must —
x have deciduous forests .
x be located along the equator .
√ have similar organisms and climates .
x be at least one hundred square meters in area.
For a biome to be of the same type they have to possess features such as
same organisms and climates.
A biome is a large area which is characterized by different features such
as vegetation, soil, climate, and wildlife. A biome being of the same type
must have the same features listed above.
There is the marine and grassland biomes which consists of the same
organisms and climatic conditions.
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How are the reactions of photosynthesis and Cellular respiration interconnected?
The reactions of photosynthesis and cellular respiration are interconnected, as the glucose produced by photosynthesis is consumed by animals in cellular respiration.
What is cellular respiration?Cellular respiration is a process of breaking down of food material into simpler forms in releasing energy.
Because oxygen and glucose are produced during photosynthesis from carbon dioxide and water, while water and carbon are produced during cellular respiration, the reactants of photosynthesis and cellular respiration are linked.
The ATP, which is energy transferred as a result of that process, results in the transmission of both water and carbon as byproducts.
Therefore, as the glucose created by sunlight is used by animals during cellular respiration, the reactions of photosynthesis and cellular respiration are interrelated.
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