Answer:
Explanation:
We can organize all the carbon on earth into five main pools, listed in order of the size of the pool:
Lithosphere (Earth's crust). This consists of fossil fuels and sedimentary rock deposits, such as limestone, dolomite, and chalk. ...
Oceans. ...
Soil organic matter. ...
Atmosphere. ...
Biosphere.
The fifth most common pool where carbon is stored apart from the earth's crust, ocean, soils, and atmosphere is the living biosphere especially the plants.
where is carbon stored in environment ?Most essential element to all living things on earth is carbon which are present every where like in plants and animals, surface and marine.
It regulate global climate including temperature and determine the features of rain water.
The main source of storage of carbon are atmosphere where carbon dioxide and shorter-lived methane CH4 are stored.
In biosphere carbon is present in all living organisms in various forms where as in cryosphere the plants of tundra and arctic regions have the carbon storage.
Pedosphere store organic carbon and the remaining of dead plants & animals where as lithosphere have many of the rocks of the earth’s crust which contain carbon.
Finally hydrosphere have the oceans contain that have dissolved CO2 as well as marine.
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1. What are 2 ways that agriculture can negatively impact our environment?
Enter your answer
Answer:
Some of the environmental issues that are related to agriculture are climate change, deforestation, dead zones, genetic engineering, irrigation problems, pollutants, soil degradation, and waste.
Explanation:
what specialized structure would you expect to find in a cell adapted to produce energy
Answer: Mitochondria
Explanation:
Mitochondria are oval shaped cell organelles bounded by a double membrane, and serve as a site of respiration or where energy is released from simple sugars like glucose.
Thus, the ability to produce energy makes mitochondria the power house of the cell
mitochondria are known as the power house of cell
In general, what is true about places at higher altitudes?
They have cooler temperatures than places at lower altitudes.
They have warmer temperatures than places at lower altitudes.
They have the same temperatures as places at lower altitudes.
They have less predictable temperatures than places at lower altitudes.
Answer:
A
Explanation:
In general, places at higher altitudes are cooler than those at lower altitudes due to the thinner atmosphere and less heat absorption from the sun.
Explanation:In general, places at higher altitudes have cooler temperatures than places at lower altitudes. This is because the atmosphere becomes thinner with increasing altitude, causing less heat to be absorbed from the sun. Thus, high-altitude locations like mountain tops are colder compared to low-lying areas such as sea level regions. One familiar example is Mount Everest, the highest peak in the world, which is perpetually covered in snow due to the extremely cold temperatures at its high altitude.
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What are the two factors that
affect an object's kinetic energy?
An object's kinetic energy is influenced by its mass and velocity. The kinetic energy of an object is determined by the equation KE = 1/2 mv^2, implying that larger objects moving at faster speeds have more kinetic energy.
Explanation:The two factors that affect an object's kinetic energy are its mass and its velocity. Kinetic energy is defined as the energy of an object in motion. The equation to calculate kinetic energy is KE = 1/2 mv^2 where m is the mass of the object and v is its velocity. Based on this equation, it's clear that an object with a larger mass or a higher velocity will have more kinetic energy. For instance, a heavy truck moving at a high speed has more kinetic energy than a small car moving at a slow speed.
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Which of the following scenarios would provide the best evidence that human traits are a result of lifestyle choices?
A.
Matt had been naturally right-handed since birth. In high school, he decided to start throwing left-handed after reading that there was a shortage of left-handed pitchers in the major leagues. Matt is now left-handed.
B.
Lisa and Anita are identical twin sisters. Lisa went grew up in New York; Anita grew up in Florida. Both sisters used to catch cold easily, but now, Lisa does not. Both sisters used to sunburn easily, but now, Anita does not.
C.
Tanya's mother has blonde hair. Tanya's father has black hair. Tanya's hair is brown.
D.
Arnold's parents and grandparents all have heart disease. Although Arnold has always exercised, avoided unhealthy foods, and followed doctor's instructions, he also has heart disease.
Where did the pollution from acid rain and the factory eventually end up?
O air
O groundwater
lakes
rivers
Acid rain is mostly brought on by air pollution. There are numerous distinct compounds created during the burning of any fuel source. The pollution from acid rain and the factory eventually end up in groundwater.
What is the effect of acid rain?Acid rain is rain that is more acidic than usual because it contains significant amounts of nitric and sulfuric acids.
When specific pollutants, like sulfur dioxide and nitrogen oxides, are released into the atmosphere, they react with oxygen, water, and other chemicals to generate these acids.
Although it can happen in a natural setting, acid rain is mostly brought on by human activity like the burning of fossil fuels (such coal and oil) and the usage of specific industrial processes.
Therefore, option B groundwater is correct.
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According to Darwin's theory of natural selection
Answer:individuals who survive are the ones best adapted for their environment.
Explanation:
Answer:
qsa
Explanation:
What is the purpose of meiosis? How does the cell do the following: reduce the chromosome number in half and create genetically different cells?
Answer:
2 cells meet and the number of chromosomes becomes equivalent to the somatic cell.
Explanation:
In meiosis crossing over occurs and the number of chromosomes divided or remain half as compared to a somatic cell which is called Haploid (n). When two haploid cell meets than diploid (2n) cell formed which further transforms into a zygote. So, the purpose of meiosis is the cross over which creates genetic variation among individuals and reduced the number of chromosomes into the half. Because if the number of chromosomes remains the same as (2n) and (2n) meets and becomes 4n. Which is the wrong pattern so nature keeps this balance in a unique manner that (n) and (n) meets and form (2n).
Which of the following characteristics is characteristic of type 2 transitional B lymphocytes?
Answer:
thymus gland
Maturity of T and B Cells. The T Cell: T-cells mature in the thymus gland or in the lymph nodes. Since the thymus is only 10-15% functional in the adult, the lymph nodes take on greater importance in the maturation process.
Explanation:
1. Normal cells and cancer cells differ in several
ways. This illustration shows some examples of
visible changes in cancer cells.
Multinucleated
Which of these accurately describes a difference
between cancer cells and normal cells?
O A. Cancer cells divide less frequently.
B. Cancer cells lack the ordered
arrangement of normal cells.
Multipolar
mitosis
Cancer cells have a consistent size
and shape.
Arreste
mitosis
O
D. Cancer cell nuclei are always small
and rounded in shape.
Answer: cancer cells lack the orders arrangement of normal cells
Explanation:
The accurate difference between cancer cells and normal cells is that cancer cells lack the ordered arrangement of normal cells.
The accurate difference between cancer cells and normal cells is that cancer cells lack the ordered arrangement of normal cells (option B). Normal cells typically have a specific arrangement and organization, whereas cancer cells can appear disorganized and scattered. This can be seen in the illustration, where the cancer cells are multinucleated and have multipolar mitosis.
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Which phrase describes the relative age of a rock?
1.uses the law of superposition to determine which rock is older or younger
2.can determine the age based on location of a rock within the same layer
3.requires only one rock to determine the age
4.can provide the exact age of a rock
Answer:
1, if you know that a rock was deposited after the one you are attempting age then you know that the "deeper" one is older.
Explanation:
The relative age of a rock is described by using the law of superposition, which helps determine the older or younger status of rock layers without providing an exact age.
Explanation:The phrase that describes the relative age of a rock is: uses the law of superposition to determine which rock is older or younger. This method of relative dating is essential in determining the chronological sequence of rock layers. By observing rock strata, geologists apply the law of superposition which stipulates that in undisturbed layers of sedimentary rocks, the oldest layer is at the bottom, with successively younger layers stacked above it. Thus, the relative ages of rocks and fossils can be discerned based on their positions within these layers.
Use of low temperatures as a method of control is a microbicidal method.
True
False
Answer:
False.
Explanation:
Sterilization technique is a method in which low temperatures is used for controlling of microorganisms growth which causes infection in food materials, while in microbicidal method, compounds are used to decrease the growth of harmful microorganisms in a substances which causes infection. Wood tar is the example of microbicidal compound.
I just need help understanding the question a bit more
Answer:
D
Explanation:
So basically genes are made of DNA molecules. DNA molecules are the building blocks of genes.... if you think about legos for a second the building blocks of legos would be plastic right? because without plastic you don't have legos which is same here... genes are legos and DNA molecules are the plastic that make them (if you get my analogy).
So genes are the information carriers because they carry information on how to make a certain protein or express certain characteristics. Gene directs the cell to make certain proteins and proteins are the key players that are involved in many cellular process because they carry out major functions hence, the protein determine the function of cell because without protein the cell would have no function
Identify the two layers that surround the sun's innermost layer. Select the two correct answers.
A: photosphere
B: radiative zone
C: convection zone
D: chromosphere
Answer:
B- radiative zine and c- convection zone
Explanation:
The two layers that surround the sun's innermost layer is radiative zone and convection zone. The correct option is B and C.
What are Sun's different layers?The sun has seven layers: three inner layers and four outer layers. The core, radiative zone, and convection zone are the inner layers, while the photosphere, chromosphere, transition region, and corona are the outer layers.
The atmosphere is composed primarily of three layers: the core, the radiative zone, and the convective zone. These are the Sun's internal components.
The Core, Radiative Zone, and Convection Zone are the inner layers. The Photosphere, Chromosphere, Transition Region, and Corona are the outer layers.
The photosphere is the Sun's visible surface. Since the Sun is a massive ball of plasma, it lacks a distinct, solid surface like Earth.
Thus, the correct option is B and C.
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Which of the following you is a characteristic of all minerals
Answer:
All minerals are solid. All minerals form crystals.
Which is an example of a scientific hypothesis?
1 How will climate change affect forests and plants on dry land?
2 In horizontal rock layers, the oldest layer is at the bottom.
3 The outer layer of Earth is divided into “plates” that move across Earth's surface.
4 If salt is added to water, then the water will take longer to freeze because the salt causes more heat in the
mixture.
Answer:
number 4
Explanation:
it is the only scientific statement/hypothesis.
D. If salt is added to water, then the water will take longer to freeze because the salt causes more heat in the mixture.
How is it possible that over 20 million living organisms on the planet are made up of only 5 types of nucleotide based arranged in long chains?
Answer/Explanation:
The DNA in all living organisms is made up of 4 bases, adenine, thymine, guanine, cytosine. The RNA replaces thymine with uracil, making 5 types of nucleotide. The number of nucleotide pairs in a genome can range from half a million up to 100,000 million - meaning there are an exponential number of combinations of these 4 bases.
Imagine an organism exists that has only 2 nucleotides (this is over 200,000x smaller than even the smallest bacterial genome). If we allow any nucleotide at each of the 2 positions, then we have 4x4 (4²) or 16 possible combinations of sequences. For a nucleotide length of 4, the total number of possible combinations are 4⁴ or 256.
Since we are dealing with many millions of nucleotides, there are essentially infinite combinations of nucleotides, giving rise to the variation that produces over 20 million organisms on the planet.
You played hard in Pe today and didn’t get a chance to rehydrate after class. You fell tired and sluggish. How does your body regulate your dehydration? List five body systems that interact with the situation
Answer:
Respiratory systemNervous systemCirculatory systemIntegumentary systemEndocrine systemExplanation:
During excessive hard work or sports, the respiratory system acts to provide sufficient oxygen for energy supply (ATP) - a process takes place in mitochondria. At the very beginning, the respiratory system is active. If the person doesn't intake sufficient water, he will feel tired because of heavy breathing that increases body temperature and affects metabolic reactions. A supply of water would help decrease the respiration need and so support other systems.
The nervous system (hypothalamus) regulates the body temperature which is necessary for metabolic reactions taking place within the body, i.e. homeostasis. During and after exercise, the water intake was not sufficient, this means that the hypothalamus would work to maintain the temperature as well as other metabolic mechanisms. In the case of less water intake, the nervous system would be in stress.
The circulatory system acts to transport blood and oxygen to all parts of the body. During sports activities, the oxygen supply would be high to maintain energy supply. This takes place with the combined action of the circulatory system and respiratory system. For optimal functioning, the circulatory system needs fluids (water) intake because sufficient water is already lost during sports.
The integumentary system is the system that directly protects the body from damages including dehydration. Therefore, in this case, it will be highly active.
The endocrine system consists of glands that produce hormones to control body metabolism. The body metabolism, as mentioned before, is driven through water availability. The reduced water in the body would also put the endocrine system under pressure.
Renal, endocrine, cardiovascular, integumentary, and nervous systems regulate hydration, adjusting urine output, hormone release, blood pressure, sweating, and thirst.
When your body is dehydrated, several physiological mechanisms work together to regulate hydration levels and maintain homeostasis. Here are five body systems involved in this process:
1.Renal system (Urinary system):The kidneys play a crucial role in regulating water balance by adjusting the volume and concentration of urine produced. When dehydrated, the kidneys conserve water by reducing urine output, reabsorbing more water back into the bloodstream.
2.Endocrine system:Hormones such as antidiuretic hormone (ADH) and aldosterone are released by the pituitary gland and adrenal glands, respectively, in response to dehydration. ADH increases water reabsorption in the kidneys, while aldosterone promotes sodium reabsorption, leading to water retention.
3.Cardiovascular system:Dehydration can lead to decreased blood volume and increased blood osmolality. The cardiovascular system responds by increasing heart rate and constricting blood vessels to maintain blood pressure and ensure adequate perfusion to vital organs.
4.Integumentary system:The skin helps regulate body temperature through sweating. Dehydration can impair the body's ability to sweat efficiently, leading to decreased heat dissipation and potential overheating.
5. Nervous system:Dehydration can affect cognitive function and mood. The brain detects changes in hydration status and triggers thirst sensations to encourage fluid intake. Additionally, dehydration-induced fatigue and sluggishness can impact motor coordination and reaction times.
These body systems work in concert to detect and respond to dehydration, helping to restore fluid balance and maintain optimal physiological function.
Complete the sentence to explain how body parts move.
When muscles contract and relax, the muscles move the
attached to them. This results in movement of
Answer:
probably bones
Explanation:
Answer:
When muscles contract and relax, the muscles move the attached to them. This results in the movement of bones.
Explanation:
Skeletal muscles are the part of the muscular system, which are attached to the bones via tendons. The contractions or relaxation of muscles is primarily caused due to skeletal muscles. These muscles cause the mechanical movement of the body parts. These tendons are present at many joints of the body allowing muscle movement, which eventually causes bone movement.
Thus, all the vertebrates move by the action of bones. Tendons play a crucial role in the attachment of bone to the muscles. These muscles when contract or relax, cause the movement of the bones. These muscles work in antagonism, such that when one muscle flexes, the other one relaxes.
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Wind and moving water provide _______ energy.
a. chemical
b. thermal
c. electromagnetic
d. mechanical
Answer:
d
Explanation:
mechinal energy is energy made from movement, since they go through turbines to make energy its mechincal
Carbon dioxide is captured and converted into organic compounds such as sugars, in the ____?
- Calvin cycle
- Krebs cycle
-Electron transport chain
- mitochondria
Answer: Calvin cycle
Explanation: Calvin cycle is a cyclic pathway in which carbon dioxide is assimilated. The process of photosynthesis is divided into two: The light reactions and carbon fixation reactions. In light reactions, chlorophyll and other light absorbing pigments absorb light from the sun and conserve it as ATP and NADPH. In carbon fixation reactions, carbon dioxide reduced to sugars in a cyclic pathway driven by ATP and NADPH. This pathway is known as the Calvin cycle.
A chromosomal disorder occurs when a person’s cells do not have the correct number of chromosomes. How can you use a karyotype to diagnose a disease?
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When gametes combine to form a zygote, the chromosomes number of the zygote is now referred to as
The chromosome number of a zygote formed when gametes combine is referred to as diploid, having two sets of chromosomes, one from each parent. Human zygotes have a total of 46 chromosomes. Errors in chromosome numbers can lead to aneuploidy conditions such as monosomy and trisomy.
Explanation:When gametes combine to form a zygote, the chromosome number of the zygote is referred to as diploid. A zygote is formed when a sperm cell and an egg cell, both of which are haploid with a single set of chromosomes, fuse during fertilization. The resulting zygote contains two sets of chromosomes, with one set coming from each parent, making it diploid. A human zygote, for example, contains two sets of 23 chromosomes, for a total of 46 chromosomes (23 pairs). The zygote then undergoes numerous divisions through the process of mitosis to develop into a multicellular organism.
Additionally, it is important to note that errors in the number of chromosomes, such as the ones caused by a diploid gamete joining with a haploid gamete can lead to aneuploidy. Common examples include conditions such as monosomy and trisomy, where individuals have either one less or one extra chromosome, respectively. Trisomy of chromosome 21, for instance, results in Down Syndrome, a condition characterized by a set of physical and developmental traits.
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the galapagos tortoise are biodiverse. tortoises in a more barren area have a flat shell and long neck to help grasp the sparse vegetation. tortoises that live in a more vegetated island, have more round shell and shorter necks. this is an example of
Final answer:
The diverse shell shapes and neck lengths of Galápagos tortoises represent examples of adaptive evolution and natural selection, with differences suited to their specific island environments.
Explanation:
The differences in shell shape and neck length of the Galápagos tortoises are excellent examples of adaptive evolution. Tortoises with saddle-shaped shells and longer necks are adapted to islands with sparse vegetation, where they need to reach higher to grasp food. Conversely, tortoises with dome-shaped shells and shorter necks are adapted to islands with more abundant ground vegetation, where there's less need to reach high. These variations in physical traits are consistent with Charles Darwin's observations and underscore the concept of natural selection, where environmental pressures influence which traits become more common in a population over time.
If 48 g of magnesium reacts with oxygen gas, how many grams of magnesium oxide will be
formed according to the following equation?
2 Mg + O2 → 2 Mgo
79.391 grams of MgO is formed when 48 gms of magnesium reacts with oxygen gas.
Explanation:
Balanced equation to show the production of MgO from Mg and oxygen.
2 Mg + O2 → 2 Mgo
From the equation it can be concluded that 2 moles of Mg is required for the formation of 2 moles of MgO.
now, the given weight of Mg is 48 grams
atomic weight of Mg= 24.3 gram/mole
We can calculate the number of moles in 48 grams of Mg by applying the following formula:
number of moles= mass of the substance or element given÷ mass of the one mole of the element.
Putting the values in the above equation
n= 48÷24.3
= 1.97 moles of Mg
Applying the stoichiometry it can be found that
2 moles of Mg gave 2 moles of MgO
1.97 moles of Mg gave x moles of MgO.
Solving for x
2÷2=1.97÷x
x= 1.97
Thus 1.97 moles of MgO is formed, to know the weight in grams we can use the formula used above as
mass = n × atomic mass
= 1.97 × 40.30 grams/mole
= 79.391 grams of MgO is formed.
Using stoichiometry, 48 grams of magnesium will react with oxygen to form 79.602 grams of magnesium oxide.
Explanation:To determine how many grams of magnesium oxide (MgO) will be formed when 48 grams of magnesium (Mg) reacts with oxygen (O2), we will use the stoichiometry of the balanced chemical equation:
2 Mg + O2 → 2 MgO
First, we need to calculate the molar mass of magnesium and magnesium oxide:
Molar mass of Mg = 24.305 g/molMolar mass of MgO = 24.305 (Mg) + 16.00 (O) = 40.305 g/molNow, using the stoichiometry of the reaction:
Determine how many moles of Mg are in 48 grams: moles of Mg = 48 g / 24.305 g/mol = 1.975 mol.According to the balanced equation, 2 moles of Mg produce 2 moles of MgO, so 1.975 mol of Mg will produce 1.975 mol of MgO.Finally, convert moles of MgO to grams: mass of MgO = 1.975 mol * 40.305 g/mol = 79.602 g of MgO.Therefore, 48 grams of magnesium will produce 79.602 grams of magnesium oxide.
The pigments for light collection in photosynthesis are located in the:
The process in which the DNA from one type of cell causes an inheritable change in a second type of cell is called
Answer:
bacteriophages
Explanation:
Which statements explain what the fossil record indicates? Check all hay that apply
Answer:
Earth is 4.5 billion years old.
Many organisms have become extinct.
Mass extinctions have occurred several times on Earth.
Explanation:
Which of the following is an example of water transferring from the atmosphere to the cryosphere?
A.
Rain falls on the Earth's surface and seeps into the ground, forming a groundwater reservoir.
B.
An iceberg floats into warm waters and melts.
C.
A riverbed dries up during a severe heat wave and drought.
D.
Snow falls on a glacier and is gradually compacted into ice over many years.
Just did it its D
Answer:
Snow falls on a glacier and is gradually compacted into ice over many years.
Explanation:
Option D is correct because it directly related to the phenomenon of transferring water from the atmosphere to the cryosphere. The cryosphere is the frozen part of Earth that mainly represent Antarctica and the Arctic. Therefore, snow falling on the glacier and continuous compacting over the years represent the transferring of water from the atmosphere to the cryosphere.
One the other hand, A, B, and C are incorrect options. A describes a phenomenon in which atmospheric water restore groundwater storage via seepage. B represents a situation where frozen water (cryosphere) melts and form surface water (oceanic water.) C is a condition where evaporation causes drying of a river resulting in drought.
Answer:
Snow falls on a glacier and is gradually compacted into ice over many years.
Explanation:
The cryosphere describes all of the solid water on Earth's surface, including glaciers, icebergs, snowpack, and ice. The atmosphere is the layer of gases that surrounds the Earth. Water very often transfers between the atmosphere and cryosphere. When snow falls on a glacier and is gradually compacted into ice over many years water from the atmosphere is becoming a part of the cryosphere.
The topmost zone near the shore of a lake or pond is the living are food for other creatures such as turtles, snakes, and ducks
zone. The species
A. Olimnetic
B. Profundal
C. littoral
D. none of the above
Answer:
littoral zone
Explanation:
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