LO
After heavy exercise, due to the accumulation of which substance we get muscle cramps?

a) Malaic acid
(b) Fumaric acid
(0) Lipoic acid
(d) Lactic acid

Endosymbiosis is the theory that mitochondria and chloroplasts originated as independent bacterial cells that were engulfed by another cell and began functioning as organelles within that cell.

Answer: B

The correct answer is Tuberculosis,  a bacterial infection caused by Koch's bacillus(Mycobacterium tuberculosis)

Answer:

Explanation:

During the decomposition about plant matter, organic nitrogen is once again converted to inorganic ammonium and released into the soil. The process that converts organic N to ammonium is called mineralization and plays a significant role in the management of nitrogen.

Answer:

Decomposition

Explanation:

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Independent Assortment cells develop, they individually split apart. Gregor Mendel discovered independent gene assemblages and their existence in 1865 while doing genetic research on pea plants.

independent assortment from segregation  Segregation is the random separation of two genes for a particular characteristic from the parent into sex cells. An independent assortment is when one trait is inherited without affecting the inheritance of another trait.

Parts of chromatids switch positions between homologous chromosomes during the prophase I process known as crossing over. Independent assortment is the process in which sister chromatids are randomly shifted into during metaphase Ii and anaphase.

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The unemployment benefits that Susan received in 2022 are reported as income on her tax return for that year. If she meets certain requirements, she may be able to claim a deduction for the amount repaid in the same year.

However, the $1,500 that Susan repaid in 2022 may be deductible as an adjustment to income on her tax return. In order to claim this deduction, Susan will need to meet certain eligibility requirements and must have received the unemployment benefits in the same tax year that she is claiming the deduction.

To summarize, Susan will need to report the $8,500 unemployment benefits she received in 2022 as income on her tax return for that year. If she meets the eligibility requirements, she may be able to claim a deduction for the $1,500 that she repaid in the same year. The unemployment benefits that Susan received in 2022 are reported as income on her tax return. If she meets certain requirements, she may be able to claim a deduction for the amount repaid in the same year.

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The concept of ions and ionic bonding can be demonstrated by performing experiments that involve the transfer of electrons between atoms.

In an investigation, the concept of ions and ionic bonding can be demonstrated. Ionic bonding refers to the bond between anions (negatively charged) and cations (positively charged).Ions are charged particles that are created when an atom loses or gains electrons. Atoms that have more electrons than protons are negatively charged, while atoms that have fewer electrons than protons are positively charged.

The concept of ions and ionic bonding can be demonstrated by performing experiments that involve the transfer of electrons between atoms. For example, the investigation can involve dissolving an ionic compound in water and observing the resulting solution.To demonstrate the concept of ions and ionic bonding in this investigation, the following steps can be followed:1. Dissolve an ionic compound, such as sodium chloride, in water.2. Observe the reaction between the ionic compound and water.3. The ionic compound breaks up into cations and anions when it dissolves in water.4. The positively charged cations are attracted to the negatively charged oxygen atoms in the water molecules, while the negatively charged anions are attracted to the positively charged hydrogen atoms in the water molecules.5.

The cations and anions form an ionic bond with the water molecules, resulting in an ion-dipole interaction.6. The resulting solution is conductive because the ions are free to move around and carry electric charge.

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Option c. increased stability in temperatures is not a consequence of climate change.

Climate change is expected to have numerous consequences, but increased stability in temperatures is not one of them. Climate change is characterized by shifts in global climate patterns, leading to various impacts on ecosystems and the environment.

Long-term changes in temperature, precipitation patterns, wind patterns, and other facets of the Earth's climate system are referred to as "climate change." The burning of fossil fuels, deforestation, and industrial operations that emit greenhouse gases into the atmosphere are the main causes of it. In addition to having an adverse effect on agriculture, water resources, human health, and economic systems, climate change also poses serious hazards to human societies.

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Answer:

We sense temperature in our environment through specialised nerve cells that project into the outer layers of the skin. These nerve cells are activated by high temperatures and capsaicin, the substance that makes chilli peppers hot. In response to a stimulus like heat or capsaicin, proteins on the surface of nerve cells called ion channels open up a channel that lets charged ions flow into the cell, setting off a nerve impulse. The impulse travels along sensory neurones to the spinal cord and then up to the brain, where it is interpreted as heat.

Answer:

it's not possible to exert more force on an object than it can exert back

Answer: Force pairs don't cancel because they act on different objects. Forces can cancel only if they act on the same object.

Answer:

Ammonia and nitrate

Explanation:

An emergency water filter pouch makes a safe drink out of dirty water by removing harmful contaminants through a process called filtration.

Filtration is the process of removing solid particles from a liquid by passing the liquid through a filter material. The filter material in an emergency water filter pouch is designed to remove bacteria, viruses, and other harmful contaminants from the water. This helps to make the water safe to drink and can reduce the risk of waterborne illnesses such as cholera.

In addition to filtration, the pouch may also contain chemical agents such as chlorine or iodine, which can help to kill any remaining bacteria and further improve the safety of the water.

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'Elaborate courtship displays to attract mates of the appropriate species is one way that behavioral isolation using visual signals keeps sympatric species separate.

The meaning of separation between sympatric species is associated with the restrictions of gene flow between individuals of the same population that live in a given area together.

Therefore, with this data, we can see that the meaning of the separation between sympatric species is related to the process of speciation due to behavioral issues associated with the restrain in the gene flow.

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The population after 40 years will be 400,000 animals, and the population after 65 years will be approximately 336,000 animals.

To determine the population after a certain time period, we can use the formula for exponential decay;

N(t) = N0 × \((1/2)^{(t/T)}\)

Where;

N(t) is the population at time t

N0 is the initial population

t is the time elapsed

T is the half-life of the population

Given;

N0 = 1.6 million

T = 20 years

Let's calculate the population after 40 years;

N(40) = 1.6 million × \(1/2^{(65/20)}\)

= 1.6 million × (1/2)²

= 1.6 million × (1/4)

= 400,000

Therefore, the population after 40 years will be 400,000 animals.

Now, let's calculate the population after 65 years;

N(65) = 1.6 million × \((1/2)^{(65/20)}\)

= 1.6 million × \((1/2)^{(13/4)}\)

≈ 1.6 million × 0.210

≈ 336,000

Therefore, the population after 65 years will be approximately 336,000 animals.

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The lowest temperature at which a material will spontaneously ignite and continue burning in a normal atmosphere is known as the autoignition temperature.

This temperature varies depending on the material and can range from a few hundred degrees Celsius to over 1000 degrees Celsius. The autoignition temperature is an important factor to consider in industries where flammable materials are present, such as oil and gas, chemical, and manufacturing plants. In these industries, it is important to ensure that the materials are stored, transported, and handled safely to prevent any accidental fires or explosions. Engineers and safety professionals use the autoignition temperature to design equipment and systems that can withstand high temperatures and prevent any potential ignition sources. Furthermore, workers in these industries must be trained on the proper handling of flammable materials to minimize the risk of accidents.

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Answer: varies

Explanation: It would make for a different type of flower reproduction.

Answer:

Succession

Explanation:

The biologists were attempting to imitate succession.

Succession refers to a gradual change to the structure and species composition of a community over a period of time.

A newly colonized environment such as a bare rock forms a community is said to be in primary succession. Thereafter, the structure and composition of the community keep changing until a relatively stable community, otherwise known as climax community, is established.

Secondary succession happens when a disturbed community tries to regain its original dynamics in terms of species composition and structure. A climax community is often less diverse than a community that is still in active succession.

Hence, the biologists were attempting to imitate succession by burning/disturning a relatively stable, less diverse climax community of grassland in order to realize a more diverse community that will undergo secondary succession.

Answer:

Succession

Explanation:

The missense mutation refers to the replacement in a single base that provockes the addition of a different amino acid to the building protein, reducing its function. This is a missense mutation. It does not cause a frameshift. An adenine from the original sequence is replaced by a cytosine. The mutated codon, instead of coding for Trp, codes for Gly, causing a reduction in the protein's function.

In point mutations a single nucleotide changes. This affected unit can change to another nucleotide, can be removed, or can be added.

Point mutation affects single base pair.

There are three types of points mutations

• silent mutations

• missense mutation

• nonsense mutation.

In missense mutations, one nucleotide is replaced by another nucleotide. This replacement causes a change in the mRNA codon, which codes for a different amino acid.

This change affects the protein by decreasing its original function.

The exposed situation is an example of a missense mutation because a single nucleotide changes and the resulting codon codes for another amino acid.

An adenine -A- in the original strand is replaced by a cytosine -C-.

Normal DNA Sequence: CGG  CGG  ACC  CCA   TTC

                            mRNA: GCC  GCC  UGG  GGU  AAG

                  Amino Acids:  Ala     Ala     Trp    Gly    Lys

Mutated DNA Sequence: CGG   CGG   CCC   CCA   TTC

                              mRNA: GCC  GCC    GGG   GGU  AAG

                    Amino Acids:  Ala     Ala     Gly    Gly    Lys

This is a point mutation. Especifically, it is a missense mutation because the change of the single base caused a change in the codon, and this new codon codes for a different amino acid.

The adenine was replaced by the cytosine.

This mutation did not caused a frameshift, because a frameshift involves the addition or deletion of bases. In this case, a base was replaced by another base.

Since this missense mutation caused a change in the amino acid sequence, it might cause a reduction in the protein's function.

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Answer:

There are 89 calories in 1 medium Red Delicious Apple.✨

Explanation:

How many calories are in a whole red apple?

89 Calories

Fat 0.3 g

Carbs 21.2 g

Fiber 3.5 g

Protein 0.4 g

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Answer:

False

Explanation:

Vaccines mimic infections mediating a primary immune response that leads to a secondary immune response when the body is confronted with the real infectious agent.

Answer: Exponential

Explanation:

The main requirement for the population of a species to grow is food. When there is food, a organisms that are born will be able to live longer because food will be able to sustain them.

This is what happened with humans during the Neolithic Revolution when we began farming.

The general trend is that the more food that is available, the higher the population growth. When these butterflies arrived and found no competition for food, their population would increase in the highest way possible which is exponentially because there would be plenty of food to go around.

Answer:

Exponential growth

Explanation:

Without any competition for food or space, the butterfly species likely experienced exponential growth.

The lack of competition would have allowed the population to flourish, as they would have excess amounts of resources, food, space, and other limiting factors.

So, they most likely exhibited exponential growth.

Answer:

Running, a natural extension of walking, involves increased velocities, joint range of motion, forces, muscle activity, joint moments, and joint powers as compared with walking.

Answer:

because nutrients cannot be stored in the soil for a long time  

Explanation:

In rainforests, high temperatures and humid conditions lead to the rapid decomposition of the organic matter in the soils, which releases nutrients rapidly. However, rainforest soils are poor in nutrients due to rains that wash dead organic material from them. Moreover, rainwater is filtered naturally into the ground, thereby extracting (leaching) nutrients off the surface.

The phenotypic ratio of the hybrid guinea pig is 3:1 (3 black and 1 white).

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The molecular weight of the rubredoxin protein is 1,400 g/mol (2 significant figures).

To determine the molecular weight of the protein, we need to use the following steps:

Determine the molar mass of iron (Fe): 55.85 g/mol

Calculate the mass of iron in the rubredoxin protein: 4.0% of the total mass

Let's assume a total mass of 100 g for simplicity. Then, the mass of Fe would be 4.0 g.

Convert the mass of iron to moles: divide by the molar mass of Fe

moles of Fe = 4.0 g / 55.85 g/mol = 0.0715 mol

Since there is one Fe atom per protein molecule, the number of moles of the protein is also 0.0715 mol.

Finally, we can calculate the molecular weight of the protein by dividing the mass of the protein by the number of moles:

molecular weight = 100 g / 0.0715 mol = 1,400 g/mol

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Answer:

Emergent plants begin to grow at the edges of the pond. These are plants that have their roots in and under the water and part of their body above the water.