Microorganisms that fix nitrogen in nitrogen fixation can obtain assimilative \(N\) for plants in a way that crops cannot. It is absorbed by bacteria from the atmosphere as a gas and released to the soil, mostly as ammonia.
The purpose of nitrogen-fixing bacteria is to provide plants with a crucial nutrient that they are unable to receive naturally from the air. The process by which nitrogen gas (\(N_{2}\)) from the environment is integrated into the tissue of specific plants is known as biological nitrogen fixation (BNF). Using soil microorganisms as a source of \(N\), only a small subset of plants can do so. Nitrogen fixers, nitrifying bacteria, and denitrifying bacteria, including Rhizobium, Nitrosomonas, Nitrobacter, Pseudomonas, and Thiobacillus, are among the organisms that participate in the nitrogen cycle. The majority of nitrogen fixation is done spontaneously by bacteria in the soil. In the soil, nitrogen is fixed and exchanged in several forms. Some bacteria adhere to root growth and form symbiotic relationships with plants that are advantageous to both the crop and the bacterium.
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The graph below describes two different organisms living in the same ecosystem.
Based on the information in the graph, which of the following describes the growth pattern of these two populations?
- Populations slowly increase and decrease based on food resources.
- When there are too many of one animal, the other animal takes over.
- Both populations grow too fast, then run out of food and bust.
- The populations reach a point of little to no change.
Why is NAD+ so important if the cell takes the anaerobic pathway, so glycolysis to fermentation? Does the atp made in glycolysis depend on the NAD+ conversion to NADH in the first step? I am confused on why NAD+ is so important to atp production
Answer:
NAD+ (nicotinamide adenine dinucleotide) is indeed crucial for ATP production, even in anaerobic pathways such as glycolysis followed by fermentation. Allow me to explain the significance of NAD+ and its role in ATP production.
During glycolysis, glucose is broken down into pyruvate, producing a small amount of ATP and NADH. The conversion of NAD+ to NADH occurs during the oxidation of certain molecules, including glucose, in the pathway. This conversion is essential because NADH carries high-energy electrons that can be used in subsequent steps to generate more ATP.
In aerobic respiration, NADH is further utilized in the electron transport chain (ETC) within the mitochondria. The ETC transfers electrons from NADH to oxygen, generating a significant amount of ATP through oxidative phosphorylation. However, in anaerobic conditions where oxygen is limited, like during fermentation, the ETC cannot function.
Here's where NAD+ becomes critical. In order to keep glycolysis running and continue generating ATP, the NADH produced during glycolysis must be converted back to NAD+. This allows glycolysis to continue producing ATP, even without the presence of oxygen. Without a mechanism to regenerate NAD+, glycolysis would halt due to a lack of NAD+, leading to a severe reduction in ATP production.
Fermentation pathways differ depending on the organism, but they all involve the regeneration of NAD+. For example, in lactic acid fermentation, pyruvate is converted into lactate, which involves the transfer of electrons from NADH to pyruvate, regenerating NAD+. Similarly, in alcoholic fermentation, pyruvate is converted into ethanol, again regenerating NAD+.
In summary, NAD+ is essential in anaerobic ATP production because it serves as a coenzyme that accepts electrons and facilitates the conversion of NADH back to NAD+. By regenerating NAD+, cells can sustain glycolysis and continue producing ATP, even in the absence of oxygen.
What type of water pollution can cause genetic mutations miscarriages, birth defects, and certain kinds of cancers?
A: Explosives
B: Sediment
C: Radiative material
D: Thermal
Radiative material can cause genetic mutations miscarriages, birth defects, and certain kinds of cancers. So, the correct option is (C).
What are Radiative materials?Radionuclides also called radioactive materials are defined as the class of chemicals where the nucleus of an atom is unstable which achieves stability through changes in the nucleus such as spontaneous fission, emission of alpha particles, or protonation of neutrons or reverse conversion.
Some examples are uranium and thorium, two radioactive elements that occur naturally in the Earth's crust. Over billions of years, these two elements slowly change forms and produce decay products such as radium and radon. These materials can cause cancer, genetic defects etc.
Radioactive Materials Radiation can damage the DNA in our cells where high doses of radiation can cause acute radiation syndrome (ARS) or cutaneous radiation injury (CRI). High doses of radiation can cause cancer in later life.
Thus, Radiative material can cause genetic mutations miscarriages, birth defects, and certain kinds of cancers. So, the correct option is (C).
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the formation of ocean currents is due mainly to the effects of ?
A:winds
B: mid-ocean ridges
C: the sun heating the surface water
this is a multiple choice question
Answer: Option A, Winds is correct
Explanation:
Ocean currents are caused by wind action. A horizontal movement of ocean water that is caused by wind occurs at or near the oceans surface.
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Which part of the brain is used to integrate incoming information and send it to the appropriate portion of the cerebrum?
Answer:
the Brarin that what it is
In which type of mixture can you see the individual components?
Answer:
heterogeneous mixture
Explanation:
A heterogeneous mixture is a mixture of two or more chemical substances (elements or compounds), where the different components can be visually distinguished and easily separated by physical means.
fill the attachment
1) A deficiency disease is caused by the absence of a food nutrient
2) Deficiency of vitamin D causes rickets
3) Deficiency of vitamin C can lead to a condition called scurvy.
4) Deficiency of iron leads to anemia
What are food nutrients?Carbohydrates has glucose as the small molecules and they give energy to the body. It can be gotten from rice.
Proteins have amino acids as the building blocks and they help to repair the worn out tissues. They can be found in legumes.
Fats are composed of fatty acids and they help in the insulation of the body. It can be obtained from margarine.
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A purebred pet results from which of the following types of mating?
Responses
two separate breeds bred through artificial selection, mating only individuals known to be free from disease
two of the same breed bred through artificial selection, mating only members of the same breed for many generations
two of the same breed bred through designer breeding, mating members of two separate breeds until their offspring begin to look alike
two separate breeds bred through selective breeding, mating only individuals who look very much alike
A purebred pet results from the following types of mating : two of same breed bred through artificial selection, mating only members of same breed for many generations.
What is meant by the term mating?In biology, mating is the pairing of organisms that are hermaphrodites or opposite sexes for the goal of sexual reproduction.
A purebred pet results from two of the same breed bred through artificial selection, mating only members of same breed for many generations.
This is known as inbreeding, which helps them to ensure that desirable traits are consistently passed down from one generation to the next. Purebred pets are often bred for specific physical and behavioral characteristics that are associated with the breed.
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Answer: The correct answer is two of the same breed bred through artificial selection, mating only members of the same breed for many generations
Explanation: This answer has been confirmed correct.
Purebred breeds are procreated by mating only members of the same breed for consecutive generations.
(HELP FAST) A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right as: 1, 2, 3, 4, and 5. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Perch, Frog, Pigeon, Rats, and Human. A text box below the branching tree diagram is labeled Derived Shared Characteristics. In the box it says from left to right Terrestrial during all stages, Jaws, Walking on two legs, Mammary glands and hair, and Four limbs.
Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram. Where in the branching tree would you most likely write "lives on land during all life stages"? Explain your answer.
"The derived shared characteristic 'Terrestrial during all stages' should be placed at the base of the tree diagram."
SupThe characteristic "Terrestrial during all stages" is a shared characteristic among all five species being compared in the branching tree diagram. This means that it is a characteristic that all of these species have in common, and therefore it is likely that it was present in their common ancestor.
Since the base of the tree represents the common ancestor of the species being compared, it makes sense to place this characteristic at the base of the tree. This also helps to show that this characteristic is a defining trait of the group of species being compared and that it has been present in their lineage since their common ancestor.
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A group of researchers transformed E. coli to express
dsRNA that matched a transcription factor, eaf-1. They
then fed these E. coli to C. elegans worms. When the
researchers examined the C. elegans, they found that
they had fewer offspring and were smaller individuals,
with similar characteristics to C. elegans in which eaf-1
had been knocked out.
The students suggested several hypotheses based on
these observations about how RNAi worked:
1. The dsRNA inhibited gene transcription.
2. The dsRNA inhibited mRNA processing.
3. The dsRNA inhibited translation of mRNA into protein.
4. The dsRNA inhibited protein folding.
Mark this and return
The researchers then performed a series of experiments
to determine which hypothesis was correct. The C.
elegans were found to be transcribing eaf-1 into mRNA,
but not producing eaf-1 protein. When the students
directly injected C. elegans with dsRNA and tracked
tagged mRNA, they found the mature mRNA was
degraded in the cytoplasm, and ribosomes were not
binding to it. Which hypothesis is supported by these
observations?
The hypothesis that is supported by these observations is that the dsRNA inhibited the translation of mRNA into protein (third option).
What does the experiment reveal about dsRNA?In this experiment, the C. elegans worms were transcribing eaf-1 into mRNA but not producing the eaf-1 protein. This phenomenon shows that dsRNA inhibited the translation of mRNA into protein related to the action of E. coli on the worms.
This also explains why the worms affected by this bacteria had fewer offspring and the offspring were smaller.
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Which of the following particles has a negative charge?
O A. Nucleus
O B. Electron
O C. Neutron
O D. Proton
mention four method of vegetative propagation
Methods of vegetative propagation include cutting, grafting, layering, division, sprouting, etc.
Vegetative propagation is a method of plant propagation that uses vegetative structures such as stems, roots and leaves to create new plants without the need for seeds. There are several methods of vegetative propagation, each suitable for different plant species and desired results. Here are some commonly used methods:
1. Cutting: This involves taking part of the stem or root of the mother plant and placing it in a suitable growing medium. Cuttings develop roots that eventually grow into new plants.
2. Layering: In this method, the plant's branches and stems are bent and partially buried in the ground. Roots develop from the buried part, and when they take root, they are separated from the mother plant and a new individual is formed.
3. Grafting: This technique involves joining the tissues of two different plants, the shoot (the plant of interest) and the rootstock (which provides the root system and support). Two plant tissues fuse and the shoot grows into a new plant with the desired plant characteristics.
4. Sprouting: Similar to grafting, sprouting involves attaching the shoots of the desired plant to a rootstock. New shoots develop from the shoots with the desired plant characteristics.
5. Tissue culture: This is a laboratory-based method of culturing plant cells or tissues in a nutrient-rich medium under controlled conditions. Cells divide and differentiate into whole plants and can be transferred to soil.
These vegetative propagation methods are widely used in horticulture and agriculture to propagate plants with desirable traits or to propagate plants that do not produce viable seeds.
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avier stepped on a splinter while walking barefoot. The splinter pierced deep into his foot and caused a great amount of pain. What is the appropriate pathway of pain sensation from the spinal cord into the brain
Answer:
Answered below
Explanation:
On piercing his foot, the pain receptors called nociceptors, found in the skin, are activated. Nociceptors exist at the nerve endings of the primary afferent neurons. Signals travel along the first order neurons which have cell bodies within the dorsal root ganglia of the spinal cord. In the dorsal root ganglia, the signals are taken up at the synapse with the second order neurons which have cell bodies in the nuclei of the cranial nerves within the brainstem. These neurons ascend cranially in the spinothalamic tract to the thalamus. The third order neurons lie within the ventral posterolateral nucleus of the thalamus. They terminate at the somatosensory cortex where the signals are being processed and returned as a sensation of pain.
how is sound recorded
Answer:
Sound is made up of waves in the form of vibrations in the air. Or you can use the signal to record the sound on magnetic tape. This works by a similar process of moving a magnet, but that magnet causes a magnetic tape to gain magnetization in patterns that represent the sound.
In a digital recording system, sound is stored and manipulated as a stream of discrete numbers, each number representing the air pressure at a particular time. The numbers are generated by a microphone connected to a circuit called an ANALOG TO DIGITAL CONVERTER, or ADC.
hope this helps
have a good day :)
Explanation:
Answer:
sound is made up of waves in the form of vibrations in the air, and can be detected by the human ear. Using magnets analoque technology takes sound waves and turns them into electrical pulses. When a metal conductor is moved inside the magnetic field an electric current is produced in that wire.
Explanation:
How do human diseases caused by bacteria and diseases caused by viruses react to antibiotics?
A. Neither responds to antibiotics
B. Both respond to antibiotics
C. Viral diseases respond to antibiotics; bacterial diseases don’t
D. Bacterial diseases respond to antibiotics; viral diseases don’t
Answer:
D. Bacterial diseases respond to antibiotics; viral diseases don’t.
Explanation:
Hope this helps!
nutrient deficiency symptoms of plans
Explanation:
it depends on Which nutrients the body lacks l.however,there are some general symptoms you might experience.they include l:pallor,fatigue, depression,weakness,trouble breathing,unusual food craving,hair loss, constipation,etc
what causes allopatric speciation
Answer:
Allopatric speciation occurs when reproductive isolation is a direct result of the geographical separation of two (or more) populations through a physical barrier, such as an ocean.
Explanation:
Thxs for comming
If you were to teach your friend about Sustainable Development Goals #13 Climate Action, how would you explain it?
Answer:
Please read below...
Explanation:
Sustainable Development Goal #13, known as Climate Action, is a global initiative aimed at addressing the urgent challenges posed by climate change. It recognizes that climate change is one of the most pressing issues of our time and calls for collective action to mitigate its impacts and build resilience to future changes.
Climate Action encompasses various strategies and measures designed to reduce greenhouse gas emissions, promote sustainable practices, and adapt to the effects of climate change. Here are some key points to explain this goal:
Urgency and Scope: Climate change is a global phenomenon affecting all nations, ecosystems, and sectors of society. It poses significant risks to the environment, human well-being, and economic stability. Climate Action emphasizes the urgency of addressing these challenges to safeguard our planet and future generations.
Mitigation: One essential aspect of Climate Action is reducing greenhouse gas emissions responsible for global warming. This involves transitioning to cleaner and more sustainable energy sources, increasing energy efficiency, adopting eco-friendly practices in industries, promoting sustainable transportation, and preserving forests that act as carbon sinks.
Adaptation: Another crucial aspect is building resilience and adapting to the impacts of climate change. This includes developing strategies to protect vulnerable communities, infrastructure, and ecosystems from rising sea levels, extreme weather events, water scarcity, and other climate-related risks. It involves planning resilient cities, improving disaster preparedness, and implementing sustainable agriculture practices.
International Cooperation: Climate change is a global challenge that requires collective action. The Climate Action goal emphasizes the importance of international cooperation, collaboration between governments, private sector engagement, and involvement of civil society to achieve meaningful impact. Initiatives like the Paris Agreement aim to unite nations in their efforts to combat climate change.
Co-benefits: Climate Action recognizes that addressing climate change can bring multiple benefits beyond environmental protection. It can create new employment opportunities, stimulate innovation and technological advancements, improve air quality and public health, enhance energy security, and foster sustainable economic growth.
By explaining these key points, you can help your friend understand the importance of Sustainable Development Goal #13 and how it aims to tackle climate change through collective efforts, sustainable practices, and resilience-building strategies.
10 POINS IM SUPOSED TO TURN THIS IN TODAY!!!
THIS IS THE ONLY ONE I NEED HELP ON PLZ HELP ME!!!
Answer:
glucose <disaccharides <starch<protein
Hope this helps!!
Do give me brainliest if it does!
Explain how diffusion restored homeostasis during the dialysis treatment.
During dialysis, diffusion facilitates the movement of waste products and excess fluids out of the blood, restoring homeostasis.
During dialysis treatment, diffusion plays a crucial role in restoring homeostasis. Homeostasis refers to the body's balanced state, where the levels of various substances are maintained within a narrow range. In the context of dialysis, diffusion refers to the movement of solutes across a semipermeable membrane.In hemodialysis, the patient's blood is circulated through a dialyzer, which contains a semipermeable membrane. On one side of the membrane, the patient's blood flows, while on the other side, a dialysate fluid flows. Due to a concentration gradient, solutes like urea, creatinine, and excess electrolytes in the blood diffuse across the membrane into the dialysate fluid.This diffusion process helps remove waste products and excess fluids from the blood, bringing it closer to the normal physiological range. By restoring the balance of solutes and maintaining proper fluid levels, diffusion in dialysis aids in restoring homeostasis and promoting the overall well-being of the patient.For more such questions on Dialysis:
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2. While gazing into an aquarium, you see bubbles coming from an aquatic plant . What are the bubbles
Answer:
oxygen bubbles
Explanation:
These bubbles are oxygen bubbles that are being produced by the aquatic plants at the bottom of the aquarium. As oxygen usually does it floats to the top of the water and back up into the atmosphere. This happens because of the photosynthesis process in which the plants soak up sunlight and carbon dioxide and uses it to produce and release oxygen. Since this process happens underwater for the aquatic plants the oxygen become bubbles and float up.
An atom that has 19 protons, 21 neutrons, and 18 electrons has a mass of ____? *
Answer:
19 - Potassium - K.
Explanation:
làm sao bảo quản để bánh không lên
Answer:
which language is this ?
this molecule is split into oxygen
protons, and electrons during light
dependent reactions is called?
Answer:
Oxygen and hydrogen ions are also formed from the splitting of water. To replace the electron in the reaction center, a molecule of water is split. This splitting releases an electron and results in the formation of oxygen (O2) and hydrogen ions (H+) in the thylakoid space.
A antibiotic that block protein synthesis and have broad spectrum
activities with relatively low toxicity is:
A. bacitracin
B. penicillin
C. vancomycin
D. erythromycin
E. levofloxacin
When a cold air mass replaces a warm air mass, it's called an)
front.
A. Stationary
B. Warm
C. Occluded
D. Cold
When a cold air mass replaces a warm air mass, it's called a Cold front (Option D).
What is a Cold front?A cold front is a limit between two masses of air (one mass that is cool and the other that is warm).
This cold front may be very unstable and thus may be associated with the presence of storms.
In mid-higher latitudes, cold fronts generally advance the Equator by pushing the warm air up.
In conclusion, when a cold air mass replaces a warm air mass, it's called a Cold front (Option D).
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Please help this is due today and I got stuck
Based on the bands of the gel electrophoresis;
Suspect C can be excused because he has only 4 out of 6 matches to sample B.Suspect D can be excused because he has only 4 out of 6 matches to sample B.Suspect E should be included because he has only 5 out of 6 matches to sample B.Suspect F should be included because he has only 5 out of 6 matches to sample B.What is gel electrophoresis?Gel electrophoresis is a molecular biology technique used to separate macromolecules such as DNA, RNA, and proteins.
Based on their size and charge, DNA fragments (or other macromolecules, such as RNA and proteins) are separated using the gel electrophoresis process.
In a technique, when a sample has similar bads to a control, the sample is usually identified as similar to the control.
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The morphogical characteristics of plant plantain...
Answer:
gbcghhhhbhhhhhhhhhhgffggh
can wolfs have medicine?
Answer:
Probably if it badly hurt then you would need it otherwise i think not.
OUTLINE the following stages of cellular respiration… 1.Glycolysis 2.Link reaction 3.krebs cycle 4.electron transport chain
The electron transport chain, the NADH and FADH2 produced in the earlier stages are used to generate a large amount of ATP. Overall, cellular respiration is a key process for producing energy that is used by cells to perform a variety of functions.
What is Cellular Respiration?
Cellular respiration is the process by which cells break down glucose and other molecules to produce energy in the form of ATP (adenosine triphosphate). This process occurs in three stages: glycolysis, the Krebs cycle, and the electron transport chain. In glycolysis, glucose is broken down into pyruvate, producing a small amount of ATP and NADH. The link reaction then converts pyruvate to acetyl-CoA, which enters the Krebs cycle. In the Krebs cycle, acetyl-CoA is further broken down, producing ATP, NADH, and FADH2.
Glycolysis: This is the first stage of cellular respiration, which occurs in the cytoplasm of cells.
Link Reaction: The link reaction is the second stage of cellular respiration and occurs in the mitochondria.
Krebs cycle: The Krebs cycle, also known as the citric acid cycle, is the third stage of cellular respiration and occurs in the mitochondrial matrix. It involves the breakdown of acetyl-CoA into carbon dioxide, producing ATP, NADH, and FADH2 in the process.
Electron transport chain: The electron transport chain is the final stage of cellular respiration and occurs in the inner mitochondrial membrane.
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