In sediments and waterlogged soil, dissolved O2 concentrations are so low that the microorganisms living there must rely on other sources of oxygen for respiration. Some bacteria can extract the oxygen in sulfate ions, reducing the sulfur in them to hydrogen sulfide gas and giving the sediments or soil a distinctive rotten-egg odor. What is the oxidation number of sulfur in these compounds
Answer:
SO₄²⁻ (+6)
H₂S (-2)
Explanation:
To determine the oxidation number of sulfur in a compound, we need to consider that the sum of the oxidation numbers of the elements present is equal to the charge of the compound.
Some bacteria can extract the oxygen in sulfate ions...
SO₄²⁻
1 × ON(S) + 4 × ON(O) = 2-
1 × ON(S) + 4 × -2 = 2-
ON(S): +6
...reducing the sulfur in them to hydrogen sulfide gas...
H₂S
2 × ON(H) + 1 × ON(S) = 0
2 × +1 + 1 × ON(S) = 0
ON(S): -2
what is codon, and what does it represent in protein synthesis?
Answer:
A codon is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or stop signal during protein synthesis. Each codon corresponds to a single amino acid (or stop signal), and the full set of codons is called the genetic code.
Explanation:
Hope you have a great day
The length of a DNA double helix increases by 0.34 nm (nanometres) for every pair of nucleotides. The total number of nucleotides in a human body cell is
[tex]1.2 \times {10}^{10} [/tex]
Calculate the total length of a double helix in a human body cell (answer to be given in meters)
Pls give me a quick answer
Wetlands and estuaries purify water and filter out...
A dead organisms
B salt
C pollution
D waste products
Answer:
C. Pollution
Explanation:
Wetlands and estuaries purify water and filter out pollutants.
HELP LIMITED TIME ASAP!!!!!!!!!!!!!!
Which greenhouse gas do humans release into the atmosphere the
most?
Select one:
1, Nitrogen
2, Water Vapor
3, Oxygen
4, Carbon Dioxide
Answer: Carbon dioxide
Explanation:Because,Carbon dioxide from the burning of fossil fuels is the largest single source of greenhouse gas emissions from human activities.
Some individuals in a bird species have brighter feathers than others. The bright-feathered birds more easily attract mates and reproduce more often. Eventually, the bright-feathered birds will
die out in the population
attract fewer mates for reproduction
lose their brighter feathers
become the dominant bird in the population
Brighter feathers, however, give male birds a reproductive advantage and assist them attract female birds for mating. Because of this, populations of birds with brighter plumage continue to exist despite having a higher risk of being eaten by a predator.
Which of the following statements best describes why some birds have colorful feathers?They are used to entice prospective partners. Birds may recognize their own species by using colors and patterns. Birds can camouflage themselves against predators by using different colors. When courting, colors are utilized to draw attention (ie: courtship displays).
Explain the reason(s) for some animals' vivid coloring using at least two instances.Some animals are colored for physical protection, and some frogs can change the color of their skin to regulate their body temperature. Pigments in the skin of some animals prevent sunburn.
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Answer: Its D- become the dominant bird in the population
Explanation: I got it right on the test
What and how long is an astronomical unit (AU)?
Answer: 93 million miles
Explanation:
:)
This system provides nutrients for cells in all tissues and organ systems.
A nervous
B. muscular
C. Digestive
D. respiratory
Answer:
the correct answer is option C. the digestive system
The system provides nutrients for cells in all tissues and organ systems is option C. Digestive as it breaks downs the food into simple forms used as nutrients.
The digestive system is an organ system that converts foods an organism eats into their simplest forms that are glucose makes carbohydrates, amino acids make up protein, and fatty acids make up fats.
The nutrients or simple forms of food are absorbed into the bloodstream from the small intestine. It begins at the mouth and ends at the anus.various digestive organs make the digestive system such as mouth, stomach, large and small intestine with the pancreas, bile duct, and liver.The circulatory system takes the absorbed nutrients to various organs and cells.Thus, the correct answer is - C. Digestive system.
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What is described: Blood type AB
pls help me i need to finish this biology test tonight
Answer:
The AB blood type is one that, according to the blood type classification, does not have Anti-A or Anti-B antigens in its cells, with which, in short, it is constituted as the only blood type that is a universal receptor in case you need a transfusion, since you can receive blood from people with blood type 0, A, B or the same AB.
Which term best describes the pattern of distribution for the human
population shown in the picture?
O A. Random
B. Sparse
C. Even
D. Clustered
Answer:
Its B. Sparse
Explanation:
i just took
Population is the number of species in the given area. The image shows sparse pattern of distribution for the humans, i.e., option B.
What is sparse pattern of distribution?A sparse population is the area where few people resides. In such a case, the area does not densely populated. Their temperatures is colder and have few buildings.
The image here as shown represents sparse pattern of population distribution.
Thus, the correct option is B.
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Which of these is an example of ACTIVE immunity?
A)vaccine
B)antitoxin
C)maternal antibody
D)monoclonal antibody
Answer:
example of active immunity is a)vaccine
work from home will have a future impact on urban sprawl?
Answer:
Yes, working from home will have a future impact on urban sprawl. Working from home reduces the need for people to commute to their workplace, which in turn reduces the demand for housing in urban areas. This can lead to a decrease in urban sprawl, as fewer people are commuting to urban areas and thus fewer people are in need of housing. Additionally, with fewer people commuting to urban areas, there will be less traffic congestion, leading to a reduction in air pollution.
Explanation:
Help me please ahhhhh OMG ahhhhh omggg please
Answer:
It’s ether B or C
Explanation:
please mark brainliest
Answer:
pretty sure its b
Explanation:
the dog learns that if it sits under the table they might drop food scraps and eat them.
¿Cuál célula es capaz de sobrevivir en
condiciones extremas? *
A) Eubacterias
B) Procariotas
D) Eucariotas
E) Arqueobacterias
Answer:
E.) Arqueobacterias
Explanation:
How do the locations where photosynthesis occurs differ in prokaryotes and eukaryotes?
Answer:
In eukaryotes, photosynthesis occurs in the chloroplasts of the cell. However, prokaryotes do not have membrane-bound organelles so they don't have chloroplasts. In prokaryotic cells, photosynthesis occurs in the infoldings of the cell membrane, which contain chlorophyll.
13. (a) Define area and state its SI units?
Answer:
Area is defined as the magnitude of product of length into breadth.
S. I unit is in m2Explanation:
A= L x B
PLEASE HELP WILL GIVE BRAINLIEST
Which reaction would be most changed if the plant did not have access to the sun?
a. None of the reactions would be affected
b. H reaction would stop
c. G reaction would stop
d. Both reactions would immediately be stopped
Answer:
d
Explanation:
photosynthesis requires energy from the sun to produce glucose and oxygen
Cell phones are widely used by people all over the world as a medium of communication. When a person makes a call from a cell phone, the cell phone emits electromagnetic waves that are intercepted by a nearby cell phone tower. The cell phone tower then connects the call to the phone of the person being called.
Which of the following processes enables a cell phone to receive communications from a cell phone tower?
A.
Electromagnetic waves diffract around the cell phone's antenna, which allows the waves to be detected by the internal circuits of the phone.
B.
Electromagnetic waves from the tower interfere with the radio waves emitted by the cell phone, producing electric currents in the internal circuits of the phone.
C.
Electromagnetic waves from the tower produce an electric current in the cell phone's internal circuit when intercepted by the phone's antenna.
D.
Electromagnetic waves from the tower are reflected by the cell phone, producing an electromagnetic field that is detected by the internal circuits of the phone.
R
Electromagnetic waves diffract around the cell phones antenna
Answer:
Electromagnetic waves from the tower produce an electric current in the cell phone's internal circuit when intercepted by the phone's antenna.
Explanation:
Study Island Answer
can someone answer this for me please
Answer:
The constants: 14 hours of light per day; food one time per day 5 oz; wheel for exercise; cage size
The independent variable: the temperature
The dependent variables: length and weight
Data to be collected: weight of mice; length of mice
A flaw in the experiment: the sample size is to small to be random; it doesn't specify a control group
Explanation:
The constants are the controlled variables. The scientist controls these items because a variable that remains unchanged prevents it from having any effect on the outcome.
The independent variable is the condition manipulated by the scientist to see its effects.
The dependent variables are the ones being measured or tested for in an experiment.
Randomization means every subject gets an equal chance at being in the control group. There are to few subjects. A control group would consist of elements that present exactly the same characteristics of the experimental group, except for the variable applied to the latter.
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Using electricity sparingly in your home is beneficial for the environment because it:
Select one:
1. increases the amount of greenhouse gases emitted into the
atmosphere.
2. increases the rate of plant growth
3. increases levels of oxygen in the atmosphere.
4. reduces the amount of greenhouse gases emitted into the
atmosphere.
Answer:
As you improve the energy efficiency of your home, you need less electricity and thus rely less on carbon-intensive power plants. This reduces your home’s demand from the plant, which in turn benefits the environment by reducing their carbon dioxide emissions.
4. reduces the amount of greenhouse gases emitted into the atmosphere.
i need help plz i’ll give you brainilest
definition for artificial language
Answer:
An artificial language is a language that has been created by humans, as opposed to a natural language, which is a language that has evolved naturally over time. Artificial languages are typically constructed to be used as a means of communication between humans, although they can also be used for other purposes, such as computer programming.
Explanation:
a car is travelling with a constant velocity of 65.0m/s. how far will it travel in 0.30 minutes?
a. 3.61 meters
b. 19.50 meters
C. 1170.0 meters
d. 216.67 meters
Answer:
B:19.50 meters
Explanation:
hope it helps!!
Answer:
answer is b 19.50 meters
5'-AUGGGUAACGGCGUG-3' is an mRNA sequence.
After translation, how many amino acids would this sequence contain in the protein?
Answer:
5 Amino acids
Explanation:
because each amino acid is made up of a codon (triplet base pairs code for one amino acid)
Thinking about the types of chemical
bonds, would you rather be in a relationship
that is more similar to an ionic bond or more
similar to a covalent bond? Explain your choice.
Ionic bonds are preferred as they are stronger than covalent bonds.
Why Ionic bonds are stronger than covalent bonds?Ionic bonds result in a stable composite when all of the electrons between the components are transferred. While two elements only share electrons to form a stable molecule in a covalent bond.
Electrostatic force and Van Der Waals force are the forces that keep ions together and covalently linked elements together, respectively.
Cations and anions are created as a result of the complete transfer of electrons in ionic connections. As a result, these ions are attracted to one another strongly by electrostatic forces.
The Van Der Waal's force that exists between two covalently bonded elements is weaker than the electrostatic force because covalently bonded components only share electrons.
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Discuss the possible theories
around water uptake in plants
Suggest the best and most
acceptable one..
and
Answer:
There are several theories around water uptake in plants, each with their own strengths and limitations.
One theory is that water is taken up by plants through osmosis, which is the movement of water from a region of high concentration to a region of low concentration. According to this theory, plants absorb water from the soil through their roots, and the water moves across the cell membrane into the plant cells by osmosis. This theory is supported by the fact that plants have a higher concentration of solutes inside their cells than in the soil, which creates a concentration gradient that drives the movement of water into the plant.
Another theory is that water is taken up by plants through transpiration, which is the loss of water vapor from the leaves of plants. According to this theory, plants absorb water through their roots and transport it to the leaves, where it is lost through the stomata (pores) on the surface of the leaves. This theory is supported by the fact that plants can lose significant amounts of water through transpiration, and that the rate of transpiration is influenced by factors such as humidity and temperature.
A third theory is that water is taken up by plants through capillary action, which is the movement of a liquid through a narrow tube or channel. According to this theory, plants absorb water from the soil through their roots and transport it to the rest of the plant through the xylem (water-conducting tissue) by capillary action. This theory is supported by the fact that the xylem of plants has a small diameter and a high surface tension, which allows it to transport water by capillary action.
Overall, the most acceptable theory around water uptake in plants is a combination of osmosis, transpiration, and capillary action. All three mechanisms play a role in the uptake and transport of water in plants, and it is likely that different mechanisms are more or less important depending on the specific plant and the environmental conditions.
Explanation:
Two objects are described below.
Thing 1: It has a mass measured by a pan balance.
Thing 2: It takes the shape of a container.
Which statement is true?
O Both objects are matter.
O Both objects are non-matter.
O The first object is matter, and the second object is non-matter.
The first object is non-matter, and the second object is matter.
Mass is measured by balance and weight is measured by balance.
Is mass measured by Pan balance?Two pans are located on either side of a lever in the pan balancing scale. To achieve balance and determine the weight of the other thing, weights are placed on one side of the object and on the other side. Typically, the mass is expressed in grammes or kilogrammes.
Because of its practicality and accuracy, comparative weighing is frequently used to compare two things' masses rather than their absolute values. When preparing reagents and stock solutions, a top pan balance is typically used for rough weighing because minor weight differences do not significantly affect the outcome of analysis.
Two pans are integrated into this particular laboratory scale on either side of a lever. It has two separate applications.
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When Thing 1: It has a mass measured by a pan balance. Thing 2: It takes the shape of a container. Then Both objects are matter statement is true.
What is Matter?Any substance with mass and which has volume is considered matter because it occupies space.
Properties of matter:Any characteristics that can be measured, such as an object's density, color, mass, volume, length, malleability, melting point, hardness, odor, temperature, and others, are considered to be part of its properties.Mass:A body's mass is an inherent quality. earlier before the discovery of the atom and particle physics, it was widely considered to be tied to the amount of matter in a physical body.To know more about Matter visit
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Civil engineers conducted a land survey in a hilly region, where roads were carved out between steep hillside slopes. Complete the passage to reveal the engineers’ safety recommendations for the area. The engineers noted that the area was prone to rockfalls and landslides. They proposed a plan to secure the rocky hillside slopes using . They also advised their team that if the slopes are not stabilized, could cause damaging mass movement without warning.
Mass wasting is movement of rock and soil down the hill. The rocky hillside slopes can be secured by slope reinforcement. if the slopes are not stabilized, landslide can cause damage.
What do you mean by mass wasting?Mass wasting is the movement of rock and soil down slope under the influence of gravity. Rock falls, slumps, and debris flows are all examples of mass wasting. Often lubricated by rainfall or agitated by seismic activity.
The most common types of mass wasting are slumps, rockslides, debris flows, and earthflow. Slumps are slow and short-distance downslope movements of semi-consolidated earth material on a curved or planar sliding surface.
The most destructive type of mass movement is a landslide, which occurs when rock and soil slide quickly down a steep slope. Some landslides may contain huge masses of rock, while others may contain only a small amount of rock and soil.
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Answer:
wire mesh and bolts, gravity
Explanation:
Civil engineers conducted a land survey in a hilly region, where roads were carved out between steep hillside slopes. Complete the passage to reveal the engineers’ safety recommendations for the area.
The engineers noted that the area was prone to rockfalls and landslides. They proposed a plan to secure the rocky hillside slopes using wire mesh and bolts.They also advised their team that if the slopes are not stabilized, Gravity. could cause damaging mass movement without warning.
traditional application of biotechnology
Numerous applications of biotechnology exist, including those in medicine, energy production, food processing, waste management, and many others.
Gene therapy, a method to correct genetic defects in an embryo or kid, is a valuable application of biotechnology in the medical industry. Other applications of biotechnology include the usage of various equipment like the ECG and EEG. Similar to energy generation, biomass production falls under the category of biotechnology. Biotechnology is used in enterprises to process food utilizing a variety of scientific methodologies, including engineering techniques. Modern biotech is the controlled manipulation of genes and live tissues to produce new tissue, as opposed to traditional biotech, which uses natural organisms to produce or modify food or other valuable goods for human use.
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Why is purification of water and nutrient salts so important in studies involving mineral nutrition using hydroponics?
Answer:
Hello!!!
Explanation:
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