Scientific research about the nitrogen cycle and water quality is most
valuable to human populations with:
A
few sources of electricity.
B. few sources of fresh water.
C. large coastal populations.
D. large amounts of farmland.
Answers
Scientific research on the nitrogen cycle and water quality is most valuable to human populations with large coastal populations, as they heavily rely on coastal resources for various purposes. The correct option is C.
Large coastal populations are particularly dependent on the health of marine ecosystems, including water quality. The nitrogen cycle plays a crucial role in maintaining water quality, especially in coastal areas where nitrogen runoff from agricultural activities, sewage discharge, and atmospheric deposition can significantly impact marine environments.
Excessive nitrogen inputs into coastal waters can lead to harmful algal blooms, hypoxia (low oxygen levels), and eutrophication, all of which can have detrimental effects on marine biodiversity, fisheries, and human health. Research on the nitrogen cycle helps to understand the sources, pathways, and impacts of nitrogen pollution, allowing for the development of effective management strategies to mitigate its adverse effects.
Furthermore, large coastal populations often rely heavily on coastal resources for drinking water, recreation, tourism, and economic activities such as fishing and aquaculture. Therefore, maintaining water quality in coastal areas is essential for safeguarding public health, sustaining livelihoods, and preserving the overall well-being of coastal communities.
In conclusion, scientific research on the nitrogen cycle and water quality is most valuable to human populations with large coastal populations due to the significant ecological, economic, and societal implications of nitrogen pollution in coastal environments.
Scientific research on the nitrogen cycle and water quality is most valuable to human populations with:
C. large coastal populations.
Question:-
Scientific research about the nitrogen cycle and water quality is most
valuable to human populations with:
A. few sources of electricity.
B. few sources of fresh water.
C. large coastal populations.
D. large amounts of farmland.
Related Questions
. Which organelle is the site of photosyn
thesis?
A. chloroplast
B. mitochondria
C. nucleus
D. ribosome
Answers
Answer:
a) chloroplast
Explanation:
Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in Cenozoic deposits, but they are generally dissolved or recrystallized in older deposits.
TRUE or FALSE
Answers
Answer:
The above statement is true.
Explanation:
The shells of aragonite are affected by various ongoing earth dynamic processes, such as physical and chemical weathering and erosion of the rock layers that contain these fossils, chemical reactions between fossils and acid water dissolving the materials of the shells.
The older Paleozoic and Mesozoic rocks have undergone significant changes with increasing time due to the effects of events such as tectonism, volcanism, erosion and so on. So the fossils present in these rocks were affected and were altered. But the rocks of the Cenozoic era are of recent age, about 65-60 million years old. During this era, massive deposition of sediments has taken place throughout the globe which provides a suitable condition for the preservation of fossils like aragonite shells. So these fossils found in these deposits are not much altered.
red flowered snapdragons are crossed with white flowered snapdragons, producing all pink snapdragons in the F1 generation. what would you expect if you crossed pink with pink? 3/4, 1/4, 1/2 red, 3/4,/1/2,/1/4 pink,1/2, 3/4, 1/4 white
Answers
Answer:
1/4 Red
1/2 Pink
1/4 White
Explanation:
Well what you have there is an incomplete dominance situation, where both alleles for the trait are expressed in the off spring but come out blended.
The problem says that F1 generation are all pink, so that would mean that all are heterozygous for he trait.
Let R = Red ; and W = white.
RW and RW
R W
R RR RW
W RW WW
Based on this, we know now that the cross would result in:
1/4 Red
1/2 Pink
1/4 White
Species can vary in several ways. Which of the following is one of Darwin's ideas that was accepted by most scientists of his time due to the large number of fossils being discovered at that time?
A. Species vary around the world.
B. Species have specific adaptations to their local environment.
C. Species that live in seawater can also live on mountains.
D. Species change over long periods of time.
Answers
Answer:
B. Species change over long periods of time
Explanation:
Darwin was a revolutionary scientist in the field of biology and evolution. He managed to notice that the animals are changing over time, and that one species can become much different over time because of the changes in its environment. The theory of Darwin was that the species change in accordance to their environment, thus they develop advantageous traits so that they can be more competitive. As there were lot of fossils found in this period of time, so there was a lot to compare with, great deal of scientists accepted Darwin's theory, though they had lot of criticism for some other theories of his.
Answer:
D. Species change over long periods of time.
Which is not a problem associated with the increased use of nuclear energy?
major hazards involved in nuclear waste disposal
the possibility of a serious nuclear accident
the cost of building safe nuclear facilities
too many nuclear explosions in reactors
Answers
I think the answer is too many nuclear explosions in reactors . (D) Nuclear energy is made this way, how can it be a problem?
A, B, and C are for sure problems with an increase in use of nuclear energy.
I hope this helps! :)
Answer: The cost of building safe nuclear facilities .
Explanation:
The nuclear energy is the harnessed in a nuclear power plant. In which the continuous nuclear fusion and fission reactions over a heavy metal takes place in controlled conditions of a nuclear reactor. The radiations and thermal energy produced in the reaction can be harmful for the surrounding environment. The leakage of radiations can be harmful as they can cause explosion in air and deadly mutation in living beings. The waste generated after the process is radioactive in nature which can also cause mutations. Although the nuclear energy is an alternate source of energy but it can be hazardous for the surrounding environment.
Among the options given, The cost of building safe nuclear facilities . is not a problem associated with the use of nuclear energy. As the generation of nuclear energy as the financial crises can be overcome but the loss of lives and environmental disasters caused by the nuclear radiations cannot be overcome.
_ is a product of the first stage of photosynthesis.
ATP
Glucose
Carbon dioxide
Water
Answers
Answer:
ATP
Explanation:
ATP is a product of the first stage of photosynthesis.
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25. What does Meiosis create? Haploids or Diploid? Somatic cells or gametes?
Answers
Meiosis creates haploid gametes.
Haploid means that the cells contain only half of the genetic material in a human cell.
Gametes are cells that are used in reproduction.
Hope this helps!!
During meiosis haploid cells, meaning cells that have one set of chromosomes(n), are created. These gametes come together during fertilization and create a 2n zygote(fertilized egg).
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1) scientists can insert a gene into a bacterium. How does this biotechnology help individuals with diabetes?
A) a person with diabetes can regulate insulin production by eating products that contain the special bacterium and the new gene.
B) The bacterium itself can be used as a treatment for a person with diabetes because it can deliver the genes for human insulin to that person’s cells.
C) the insertation of a gene into a bacterium allows scientists to modify the gene that regulates insulin production. the new gene for human insulin can then be reinserted into someone who has diabetes.
D) When the bacterium reproduces, it passes the gene for human insulin to its offspring. The offspring form a colony of bacteria that contain the gene for human insulin, which can then be used to produce insulin for a person with diabetes.
Answers
Answer:
D. When the bacterium reproduces, it passes the gene for human insulin to its offspring. The offspring form a colony of bacteria that contain the gene for human insulin, which can then be used to produce insulin for a person with diabetes.
Explanation:
When the bacterium reproduces, it passes the gene for human insulin to its offspring colony. The offspring colony form a colony of bacteria which contain the gene for human insulin, that can then be used to produce insulin for a person with diabetes. Scientists can insert a gene into a bacterium this biotechnology help individuals with diabetes.Thus, the correct option is D.
What is the function of insulin in the body?The pancreas acknowledge by producing insulin that allows glucose to enter the body's cells to provide energy. After eating when insulin levels are high excess glucose is stored in the liver in the form of glycogen.
Recombinant DNA is a technology scientists developed which made it possible to insert a human gene into the genetic material of a common bacterium.
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which is a kingdom?
Protista
Chordata
Prokarya
Mammalia
Answers
Answer:
Protista
Explanation:
cuz it is
An ecosystem is like a machine that cycles matter by using
Answers
An ecosystem is like a machine that cycles matter by using:
captured energy.
hope this helps!
Historically, greatest threats to human health came from
Answers
Answer:
The answer would be pathogenic organisms!
Hope this helps!
Historically, greatest threats to human health came from pathogenic organisms.
How have pathogens been dangerous to humans ?Historically, the greatest threats to human health came from pathogenic organisms, such as bacteria, viruses, parasites, and fungi. These organisms can cause a wide range of diseases, including:
In the past, pathogenic organisms were the leading cause of death in humans. However, thanks to advances in medicine and public health, the death rate from these diseases has declined significantly. However, pathogenic organisms still pose a significant threat to human health, especially in developing countries.
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1. Key Concept List the
major biomes, and give one
characteristic feature of each.
Answers
Tundra - Low biotic diversity
Grassland -
Forest - High Humidity
Taiga - Short wet summers and long cold winters
Tropical Rainforest - Poor soil
Temperate Deciduous Forest - Rich Soil
Rainforest - high annual rainfall
Alpine Tundra - No trees because of high elevation
Temperate Forest - moderate precipitation
Biodiversity is crucial to the continued evolution of life on Earth for several key reasons:
1. Genetic Diversity: Biodiversity encompasses the genetic variation within species. This genetic diversity is the raw material for evolution, allowing species to adapt to changing environmental conditions. Without a wide range of genetic traits, species may not be able to survive in the face of environmental stressors such as climate change, diseases, or habitat loss.
2. Species Interactions: The variety of species within an ecosystem contributes to a complex web of interactions, including predation, competition, pollination, and symbiosis. These interactions can drive natural selection and lead to the evolution of new traits and species. The loss of biodiversity can simplify these interactions, potentially slowing down or altering the course of evolution.
3. Ecosystem Resilience and Functioning: Biodiversity contributes to the resilience of ecosystems, enabling them to withstand shocks and stresses. A diverse ecosystem can recover more quickly from disturbances and maintain functioning, which in turn supports the continued evolution of its component species.
4. Adaptation and Speciation: A diverse gene pool and a variety of species increase the chances of adaptation to new or changing environments. This can lead to speciation, where new species evolve to fill ecological niches. The more diverse the pool of organisms, the greater the potential for new species to arise.
5. Ecosystem Services: Biodiversity provides essential ecosystem services, such as pollination, water purification, and nutrient cycling, which are vital for the survival of many species, including humans. The continued evolution of life depends on these services, which are underpinned by a rich tapestry of biodiversity.
6. Biological Innovations: Biodiversity is a source of biological innovations that can inspire human innovations in fields such as medicine, agriculture, and technology. These innovations can, in turn, influence the trajectory of evolution by altering the selective pressures on organisms.
7. Cultural and Aesthetic Value: Biodiversity enriches human life culturally and aesthetically, influencing the way societies value and protect nature. This cultural connection can translate into conservation efforts that preserve evolutionary processes.
In summary, biodiversity is not just a measure of the health of ecosystems but also a driver of evolutionary change. It provides the necessary conditions for natural selection to operate, ensuring that life on Earth continues to evolve and adapt to an ever-changing world. The conservation of biodiversity is therefore essential for the continued evolution of life in all its forms.
An experiment was done to determine if grass will grow taller if it is water weekly than grass that is not watered. What is the dependent variable
Answers
Answer: the height of the grass
Explanation: The height of the grass is dependent on the amount of water (the independent variable).
The dependent variable in the experiment is the grass height.
Explanation:In the given experiment, the dependent variable is the grass height. The experiment aims to determine if grass will grow taller when watered weekly compared to grass that is not watered. The dependent variable is the variable that is being measured or observed in the experiment, which is the height of the grass in this case.
During a natural disaster, part of a plant was damaged. If the plant can no longer grow, and produce new root cells, which part of the plant likely suffered damage?
A. Phloem
B. Xylem
C. Apical meristem
D. Root cap
Answers
Answer: c
Explanation:
the meristem is where the growth occurs.
The correct option is (c) Apical meristem
What is meristem?
Meristem is where growth takes placeWhat do you mean by natural disaster?
A natural disaster is characterized by the abnormal intensity of a natural event (flood, mudslide, earthquake, avalanche, drought) when the usual measures to prevent this damage could not prevent its occurrence or could not be taken.A natural disaster causes fatalities or property damage and leaves behind millions of dollars in economic damage.Learn more about Natural disaster below
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Volume is a three dimensional space and is measured using A) single units B) squared units C) cubed units D) Linear units
Answers
Answer:
C) cubed units
Explanation:
Volume, accounting for length, width, and height, is measured using cubed units. The standard unit is the cubic meter (m³), and a commonly used unit is the liter (L), equivalent to a cubic decimeter (dm³). Understanding of dimensions is vital for dimensional analysis.
Explanation:Volume is a measure of the amount of space that an object occupies or that is enclosed within a container. So, when we measure volume, it needs to account for all three dimensions: length, width, and height. Therefore, volume is measured using C) cubed units.
For instance, the standard International System of Units (SI unit) of volume is a cubic meter (m³). This is based on the base unit of length and is the volume that would be occupied by a cube with edges of precisely one meter in length. The more commonly used unit for everyday quantities of volume is the liter (L), which is equivalent to one cubic decimeter (dm³).
Understanding how dimensions relate to the units we use to measure physical quantities is a crucial part of dimensional analysis. This process ensures the mathematical relationships and conversions between different units are valid.
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Which of these is a benefit of fish farming?
Answers
It should be B. If not B, then do A next
The answer choice that describes a benefit of fish farming is: B. It eases the demand on commercial fisheries
Fish farming provides an alternative source of seafood, which can help to reduce pressure on wild fish populations that are being overfished by commercial fisheries. This can help to conserve fish stocks and ensure the long-term sustainability of fisheries.
The other answer choices are not benefits of fish farming:
A. It depletes fish populations can happen with poor management practices in fish farming.
C. It poses a risk of disease for wild stocks is a potential drawback of fish farming if not done properly.
D. It pollutes natural bodies of water can also be a drawback depending on the way fish farms manage waste products.
complete question:
Which of these is a benefit of fish farming?
A. It depletes fish populations.
B. It eases the demand on commercial fisheries.
C. It poses a risk of disease for wild stocks.
D. It pollutes natural bodies of water.
During the diumal cycle insolation peaks ______.
A. each December
B. each June
C. each day at midnight
D. each day at noon
Answers
Answer:
D. each day at noon
Explanation:
During the diumal cycle, insolation peaks each day at noon.
Which structure helps animal cells maintain their shape?
Answers
Hello There!
The answer to this is called a "cytoskeleton"
A cytoskeleton is a series of intercellular proteins that help a cell with its shape, movement, division and the organelle movement.
which of the following is on one end of all charged tRNA molecules?
A. A DNA strand
B. An amino acid
C. A protein
D. A stop codon
Answers
Answer:
B. Amino Acid
Explanation:
An amino acids on one end of all charged tRNA molecules. Thus the correct option is A.
What is tRNA?
Transfer RNA (tRNA) is a small RNA molecule which plays a key role in protein synthesis. Transfer RNA serves as a link (or adaptor) between the messenger RNA (mRNA) molecule and the growing chain of amino acids that make up a protein.
One end of the tRNA matches the genetic code in a three nucleotide sequence called the anticodon. The anticodon forms three complementary base pairs with a codon in mRNA during protein biosynthesis.
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What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences
Answers
What two factors does carrying capacity compare?
population size and resource use
population growth and resource availability
resource use and time
population size and time
Answers
Answer:
last one
Explanation:
Answer:
Population size and time
Explanation:
Edg
In which ways are Mercury and Venus similar?
Answers
Answer:
They both are small and rocky
Explanation:
Just answered it
Answer:
They both small and rocky
Explanation:
What occurs during metaphase 1 of meiosis?
Answers
Answer:
The pairs of chromosomes become arranged on the metaphase plate.
Explanation:
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Answer:
Explanation:
This stage is characterised by the arrangement of homologous chromosomes at the equator of the cell and the formation of micro tubules(spindle and fibres) attached to the centomere of each homologous chromsomes.
What would happen if a membrane protein were unable to blind to a signal molecule
Answers
Answer:
Messages would not be sent to the inside of the cell
Explanation:
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Which of the plant-like protists are multicellular ?
Answers
Multicellular plant-like protists include seaweed and kelp, which perform photosynthesis like plants but do not have true stems, roots, or leaves. Kelp can grow exceptionally large and forms underwater forests, serving an essential role in marine ecosystems.
Explanation:Among the plant-like protists, the ones that are multicellular include seaweed and kelp. These organisms are akin to plants in that they also contain chlorophyll and perform photosynthesis to create their own food. However, they differ from plants as they do not have true stems, roots, or leaves and lack cellular specialization or differentiation into tissues.
Examples of multicellular, plant-like protists are seaweed, kelp, and other forms of green, red, and brown algae. Kelp is particularly noteworthy because it can grow over 100 meters long and forms vast underwater 'forests.' Although most protists are microscopic and unicellular, these multicellular protists display the enormous diversity in size and form that exists within the protist kingdom.
The scientific method can best be described as a plan or set of
A:procedures
B:theories
C:experiments
D:hypotheses
Answers
The scientific method can best be described as a plan or set of procedures.
The answer to this question would be D:Hypothesis! The Scientific Method is a very well thought of way to try new things in science experiments, I highly recommend using it when doing science experiments!
I hope that this answer helps!
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What is one benefit of a non renewable resource, such as natural gas?
A. Generates large amounts of electricity
B. Less expensive
C. Produces pollution
D. Will run out eventually
Answers
B. Less expensive.
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an organism has the following traits multicellular cant photosynthesize has a skull. wht kingdom does this organism most likely belong too?
Answers
Answer:
Animalia
Explanation:
Make sure it says multicellularIf it says unicellular its archaea
apex
According to the given characters, this type of organisms ,most likely to belong Animalia.
What defines kingdom Animalia?Kingdom Animalia constitutes all animals. Amongst the five kingdoms, the largest kingdom is the animal kingdom. Animals are multicellular eukaryotes. However, like plants, they do not possess chlorophyll or a cell wall.
Characteristics of members of kingdom Animalia are:
They are multicellular organisms which do not possess chlorophyll.
Photosynthesis is absent as they are heterotrophs. Skull is protective encase which protect the brain is present.
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5. Which nutrient is changed by bacteria into different forms?
Through
80%
A water
of Chemicals in
om
B carbon
c nitrogen
act and Technology
Doxygen
y Systems II
Answers
Answer:
C. nitrogen
Explanation:
Nitrogen is changed by bacteria into different forms.
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Refer to the figure showing a pedigree of a family affected by a sex-linked recessive disorder. If a female is a carrier for a sex-linked recessive disorder, is it possible for her sons to be unaffected by the disorder? Choose the best answer and explanation.
A. Yes, this is possible. Males receive an X chromosome from their mother. If their mother is a carrier, a male has a 50 percent chance of being affected by the disease and a 50 percent chance of being unaffected.
B. No, this isn't possible. If a mother is a carrier of an X-linked recessive disorder, her sons will be affected by the disease and her daughters will be carriers of the disease.
C. No, this isn't possible. X-linked recessive disorders can't "skip" generations like other genetic disorders.
D. Yes, this is possible. Males receive an X chromosome from their mother. If their mother is a carrier, the mutated X chromosome won't be passed on to sons and so they'll be unaffected.
Answers
Answer:
A
Explanation:
Answer:
The correct answer is option A.
Explanation:
If a particular woman is a carrier (XhXH) for a sex-linked disease that means she has one copy of the recessive gene on X-chromosome(Xh) and one copy of the dominant gene on X- chromosome (XH).
For a male offspring of a carrier mother to not get affected by a sex-linked disorder there are 50 percent chances if his father is not affected. In this case, Male offspring receive an X chromosome only from mother. So it could be Xh or XH so this offspring has a 50% chance of being affected or unaffected.
Thus, the correct answer is option A.