answer The nitrogen cycle involves three major steps: nitrogen fixation, nitrification, and denitrification.
Answer:
Overview: The nitrogen cycle involves three major steps: nitrogen fixation, nitrification, and denitrification. It is a cycle within the biosphere which involves the atmosphere, hydrosphere, and lithosphere. ... Neither plants or animals can obtain nitrogen directly from the atmosphere.
Mike has a problem with his testosterone. He is unable to produce enough.
Which will most likely be affected by his inability to produce testosterone? Select two options.
urine production
sperm production
producing fluid to help sperm move
appearance of secondary sex characteristics
egg production
egg movement to the uterus
Answer:
B and D
Explanation:
Answer:
b,d
Explanation:
Which enzyme activate vitamin K in the liver and blocked by which drug?
Answer:
menadione
Explanation:
Vitamin K is a fat soluble vitamin that exists in two natural forms: phytonadione (K1: fye toe" na dye' one) which is derived from plant sources and menadione (K2: men" a dye’ one) which is derived from bacterial sources. Vitamin K is a cofactor in the photosynthetic electron-transport system in green plants, which are the major dietary source of vitamin K for humans. High levels of vitamin K1 are found in leafy green vegetables while vitamin K2 is found in meat, milk and butter. In humans, vitamin K is an essential cofactor in the gamma-carboxylation of glutamate residues of several clotting factors and anticoagulant proteins. Hope this helps!
When does translation of mRNA begin in prokaryotic cells?
Answer:
during initiation
Explanation:
when an initiator tRNA anticodon recognizes a start codon on mRNA bound to a small ribsomal submit.
Choose one of the water management concerns listed below and give an example of where this is happening. Please cite your source and change the heading of your post to show which concern you are discussing. Make sure to also show how this impacts the water cycle.
a. withdrawing large quantities from streams, lakes, and aquifers.
b. increasing runoff by clearing vegetation from the land.
c. altering weather patterns by clearing vegetation.
d. increasing flooding by disturbing natural flood controls.
Answer:
Water Withdrawal: it has happened in some lakes in Minnesota
Explanation:
The water cycle is influenced by seasonal-climatic fluctuations and human activity. Water withdrawal is one of the human activities that most seriously affect the amount of water in lakes and aquifers by reducing water storage, thereby altering the flow in streams, lakes and wetlands. Concerning this situation, the state of Minnesota incorporated 1- the use of a US database (State Water Use Database, SWUD) with useful water use information on withdrawals and consumptive uses and 2- an index based on the sum of permitted water withdrawal from surface and groundwater. This index estimates the use of water as a percent of the surface water runoff to define and predict the vulnerability of lakes, using data from 54 stream gages recorded from 1988-2007. The catchment scores are scaled from 0 to 100 depending on the percent of runoff used.
What do these two changes have in common? snowflakes forming in a cloud and cellular respiration
Answer:
The product of both reaction is water.
Explanation:
Both snowflakes forming in a cloud and cellular respiration have similarity of water means both releases or produce water in the end of the process. The snowflakes is made of water molecules which is present in solid state while on the other hand, when glucose is broken down in the presence of oxygen during the process of respiration, it produces carbondioxide gas and water so the product of both reaction is water.
Which image shows both potential and kinetic energy?
NEED HELP ASAP
The maximum number of organisms of a particular species that can be supported by an environment is called
a logistic growth
b exponential growth
c carrying capacity
d population density
Answer:
its C, carrying capacity
Explanation:
I don't know I'm smart I guess lol
Carrying capacity is the maximum number of species an environment can support. Therefore, option "C" is correct.
What is carrying capacity?Carrying capacity is the average number of the particular species that a be supported by a partial habitat is known as carrying capacity. The importance of the carrying capacity is that it helps in the determination of the size of the population that can be tolerated and supported by a particular environment.
The limiting factors of the area of habitat are water, availability of food, and space. The ways to increase the carrying capacity of the are the elimination of the competitor and decrease in the number of predators.
Carrying capacity helps in identification of the how much habitat can support species.
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Which provide evidence for the general theory of relativity? Check all that apply
gravitational lensing
the constancy of the speed of light
the curvature of space-time
changes in Mercury's orbital path
O gravitational redshift
Answer:
Gravitational redshift
Explanation:
Gravitational redshift, changes in a planet's orbital path, gravitational lensing provides concrete evidence for the general theory of relativity. Hope this is helpful and the answer you were looking for!
Answer:
1 4 5
Explanation:
A student is investigating mitosis by examining detailed pictures of the process the student wants to observe the formation of the nuclear envelope.the student should focus on pictures of which phase of mitosis
telophase
,prophase
,metaphase
,anaphase
Answer:prophase
Explanation:
Telophase, the fifth and final stage of mitosis, occurs when a parent cell's replicated genetic material is split into two identical daughter cells.
What is mitosis?Mitosis is a stage of the cell cycle during which replicated chromosomes are separated into two new nuclei. Mitosis results in the formation of genetically identical cells with the same number of chromosomes. As a result, mitosis exists as also referred to as equational division. Mitosis is the division of a single cell into two identical daughter cells (cell division). Mitosis is a nuclear division process that occurs in eukaryotic cells when a parent cell divides to produce two identical daughter cells. Mitosis is the separation of the duplicated genetic material carried in the nucleus during cell division.To learn more about mitosis, refer to:
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Question 10 of 25
The development of cars has been good in some ways and bad in others. The
car has allowed for better transportation but it is also responsible for a great
deal of pollution. Which activity helps solve the pollution problem through the
use of new technology?
A. Encouraging people to walk more
B. Encouraging people to ride a bus
ОО ОО
C. Building cars that give off less pollution
D. Building fewer cars
SUB
what do you think the seed need to make it start to grow
How are the endoplasmic reticulum and Golgi apparatus
similar?
Both contain their own kind of DNA.
O Both are made up of membranes consisting of a lipid bilayer.
O Both are involved in producing chemical energy for the cell.
O Both are found only in plant cells and not in animal cells.
Answer:
Both are made up of membranes consisting of a lipid bilayer.
Explanation:
A cell can be defined as the structural, fundamental, biological and functional unit of life. Cells are found in all living organisms because they are the basic unit of life.
Generally, cells have the ability to independently replicate themselves. These cells can be compared to the kind of structures found in a business or factory, where you have different workers performing different functions.
In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles.
Golgi apparatus is like a packaging unit because it prepares the protein for export by chemically tagging them.
Also, the endoplasmic reticulum is like an assembly line because it is where the ribosomes perform their tasks.
Hence, the endoplasmic reticulum and Golgi apparatus are similar because both are made up of membranes consisting of a lipid bilayer.
how might the biotic and abiotic features change during different seasons?
Answer:
The biotic and abiotic features change during different seasons through various factors.
Explanation:
Biotic and abiotic factors are referred to as the living and non living components of the ecosystem respectively. An example of biotic factor include plants, animals and an example of abiotic factors are water, sunlight etc.
The biotic and abiotic features change during different seasons through various factors. Biotic factors in dry season for example will lead to a decrease in abiotic factors such as rainfall and increase in abiotic factors such as sunlight while leading to a decrease in biotic factors such as plants and animals through the lack of water vital for them.
Biotic factors in wet season for example will lead to a increase in abiotic factors such as rainfall and decrease in abiotic factors such as sunlight while leading to a increase in biotic factors such as plants and animals.
Which class of protozoa shows nuclear dimorphism:
Answer:
Protozoan Tetrahymena
hope it helps!
Protozoa are eukaryotic organisms that are single-celled and free-living. Paramecium and Tetrahymena are the members of the ciliated class of Protozoan showing nuclear dimorphism.
What are Protozoa?Protozoans has been defined as unicellular eukaryote that is either parasitic or free-living. Ciliate is one of the classes of Protozoans that are characterized by the presence of cilia on the outer surface of the body.
The genus Paramecium and Tetrahymena of ciliated Protozoans show nuclear dimorphism as they have two different types of nuclei in their cell. One of the nuclei is somatic and the other is germline.
This property of nuclear dimorphism is seen in the lower organism like the Protozoans that needs a micronucleus for reproduction and the other macronucleus for the functioning and regulating of the cell. This property of the Protozoans makes them different from the other eukaryotes that possess only a single nucleus in their cell.
Therefore, the ciliated class of Protozoans shows nuclear dimorphism.
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Identify the statement that is true about Charles Darwin's theory of evolution by natural selection. Choose one: A. In each new generation, those that survive and those that don't are determined randomly. B. Organisms that are able to survive and reproduce pass on characteristics to their offspring. C. Populations of organisms continuously increase over time. D. As environments change, individual organisms choose to change to better suit the new environment.
Answer: Option B.
Organisms that are able to survive and reproduce pass on characteristics to their offspring
Explanation:
Charles Darwin theory of natural selection states that organisms possesses heritable traits that they developed and are able to survive, reproduce and adapt to their environment and they pass those traits to their generations. It is a differential survival mechanism.organisms that are able to survive and reproduce pass on the heritable characteristics to their offsprings and produce more organisms.
The statement that is true about Charles Darwin's theory of evolution by natural selection is option "B" which is Organisms that are able to survive and reproduce pass on characteristics to their offspring.
What is Charles Darwin's theory of evolution?Charles Darwin's theory of evolution is also known as darwin's theory.
It is said that evolution occurs by natural selection. Individuals in a species show divergence in physical features. This divergence is because of dissimilarities in their genes.
Thus, option "B" is Organisms that are able to survive and reproduce pass on characteristics to their offspring.
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Erwin Chargaff's work on the composition of nucleic acids began in 1944. His findings, which later became known as
Chargaff's rules, detail the specific pairings that occur in double-stranded DNA molecules.
According to one of Chargaff's rules, a section of DNA molecule that contains 50 base pairs and has 15 adenine
bases must also contain
a- 15 guanine bases
b- 15 cytosine bases
c- 15 thymine bases
d- 15 uracil bases
Answer:I think 15 cytosine based
Which organisms fix nitrogen into forms like ammonia?
Answer:
Bacteria
Explanation:
Which part of an experimental procedure would be written on the x-axis of a graph?
Answer:
The x-axis of your graph represents the independent variable, while the y-axis of your graph represents the dependent variable.
Explanation:
HI EVERYONE ^_^
Why the ureolytic bacteria produce CaCO3?
Answer:
Ureolytic bacteria hydrolyze urea to generate ATP by the efflux of ammonium ions through ATP-synthase, producing carbonate. In the presence of calcium ions in excess, calcium carbonate will precipitate.
Which statements describe the energy in a food web? Select three options.
Answer:
The most energy is in the beginning of the food web, and a portion of that is passed on, and a portion of THAT is passed on, and it keeps getting passed on until it reaches a predator on the top
Explanation:
Answer:
energy is in the beginning of the food web
3.We anticipate our recombinant DHFR protein to be functional for use in future research applications. However, if you had been able to test functionality and found that your recombinant GST-DHFR-His protein was not functional, what would you propose is one potential issue you would investigate to troubleshoot further. In other words, what is one thing that could have gone wrong to result in non- functional protein from the method used and results obtained this semester
Answer:
In the given case, the protein would have required to go through the process of post-translational modification, however, the mentioned protein would have been cultured in the prokaryotic system, the process of post-translational modification would have failed to take place. This step would be essential for the functionality of the protein. Thus, there is a need to culture it within the eukaryotic system.
The covalent and generally the enzymatic modification of proteins post its biosynthesis is termed as post-translational modification.
Explain in detail how to decide the number of replications in a simulation study. Use fixed-sample-size and sequential procedures as examples. Describe the pros and cons of these two procedures
Explanation:
Fixed sample size:
In this fixed sample size the data is studied and checked in order to find a relationship. The benefits it is easy to produce, and with it less reliable outcomes can be given.
Sequential procedures:
→Sequential procedures helps while we are collecting the data.
→At an interim analysis, data collection can be stopped whenever the results are convincing enough to conclude an effect is present.
→Or otherwise the more data can be collected, or if needed the study can be terminated whenever it is extremely unlikely the predicted effect will be observed if data collection would be continued.
→In this two or more blocks of different sizes are prepared for testing.
→Pros being it provides better results and is less time taking, as we can stop once the relation is seen, con being it is difficult to perform.
Biology is the study of nonliving things.
Answer:
False
Explanation:
Because Biology is the study of living organisms.
Which trait is unique to birds?
Flight
Wings
Endothermic
Feathers
Imagine an animal cell lost half of its mitochondria. Explain how the cell would be different.
YOU WILL GET 100 POINTS.
Answer:
Without mitochondria (singular, mitochondrion), higher animals would likely not exist because their cells would only be able to obtain energy from anaerobic respiration (in the absence of oxygen), a process much less efficient than aerobic respiration. ...
Explanation:
Mitochondria are rod-shaped organelles that can be considered the power generators of the cell, converting oxygen and nutrients into adenosine triphosphate (ATP). ATP is the chemical energy "currency" of the cell that powers the cell's metabolic activities. This process is called aerobic respiration and is the reason animals breathe oxygen. Without mitochondria (singular, mitochondrion), higher animals would likely not exist because their cells would only be able to obtain energy from anaerobic respiration (in the absence of oxygen), a process much less efficient than aerobic respiration. In fact, mitochondria enable cells to produce 15 times more ATP than they could otherwise, and complex animals, like humans, need large amounts of energy in order to survive.
mitochondrion is different from most other organelles because it has its own circular DNA (similar to the DNA of prokaryotes) and reproduces independently of the cell in which it is found; an apparent case of endosymbiosis. Scientists hypothesize that millions of years ago small, free-living prokaryotes were engulfed, but not consumed, by larger prokaryotes, perhaps because they were able to resist the digestive enzymes of the host organism. The two organisms developed a symbiotic relationship over time, the larger organism providing the smaller with ample nutrients and the smaller organism providing ATP molecules to the larger one. Eventually, according to this view, the larger organism developed into the eukaryotic cell and the smaller organism into the mitochondrion.
in most animal species, mitochondria appear to be primarily inherited through the maternal lineage, though some recent evidence suggests that in rare instances mitochondria may also be inherited via a paternal route. Typically, a sperm carries mitochondria in its tail as an energy source for its long journey to the egg. When the sperm attaches to the egg during fertilization, the tail falls off. Consequently, the only mitochondria the new organism usually gets are from the egg its mother provided. Therefore, unlike nuclear DNA, mitochondrial DNA doesn't get shuffled every generation, so it is presumed to change at a slower rate, which is useful for the study of human evolution. Mitochondrial DNA is also used in forensic science as a tool for identifying corpses or body parts, and has been implicated in a number of genetic diseases, such as Alzheimer's disease and diabetes.
i hope this is helpful
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What role does the brain play when it comes to our senses?
Which two statements explain how the uneven heating of Earth's surface
affects Earth's weather patterns?
A. Warm air continuously leaves the poles and moves toward the
oceans.
B. Warm air rises and cool air sinks, forming a convection current
C. Warm air moves away from the equator toward cooler regions.
D. Warm air flows from the northern hemisphere to the southern
hemisphere.
Explanation:
I think it is b because when warm air rises it always affects the earths weather pattetn
Hair analysis may be used to determine all of the following except.
O an assessment of nutritional deficiencies
O a history of the use of drugs and other toxins
where the hair originated, human or other animal
O presence of heavy metals
O hair analysis is helpful to determine all of the above
Hair analysis may be used to determine all of the following except the presence of heavy metals. Thus, option C is correct.
What is metal?A metal has been defined as a material that has to be prepared freshly and polished and fractured that shows that a lustrous look or appearance and it conducts the electricity as well as heat well relatively. The main nature of metal has that they are totally malleable and ductile and these are the properties of matter which is due to metallic bond which lies in between the atoms or the molecules present in the metal.
There are several properties of metal and these properties are the metals have high point of melting, and the metals are good conductor of electricity, as well as they are good conductors of heat also. The metals consist high density and they are malleable and ductile in the nature.
The main nature of metal has that they are totally malleable and ductile and these are the properties of matter which is due to metallic bond which lies in between the atoms or the molecules present in the metal.The metals consist high density and they are malleable and ductile in the nature.
Therefore, Hair analysis may be used to determine all of the following except the presence of heavy metals. Thus, option C is correct.
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The lesson question for this lab is “What is the effect of the type of food available on the frequency of different types of bird beaks?” The the lab procedure you just studied should help you address this question. Will it? Explain.
Answer:
Yes, this lab will address the lesson question.
The procedure shows two different food situations—three foods and two foods.
However, the initial populations of birds are the same.
Therefore, in the end, you can compare generation three for each food situation and measure the effect of the food change.
Which habit would have the least variation in its salinity
Answer:
Mangrove forest
Explanation:
Mangrove forest exist only in high saline environment. Lake is a closed type body of water so it is expected with the least variation of salinity.