Which statement best describes how a catalyst can speed up a chemical reaction?
The catalyst decreases the activation energy needed.
The catalyst increases the concentration of products.
The catalyst binds to enzymes to release substrates.
The catalyst increases the concentration of reactants.

The extracellular recording decreased or became smaller when the battery was placed between the voltmeter electrodes. This is because the battery introduced a potential difference that affected the electrical activity being recorded.


1. When the battery is placed between the voltmeter electrodes, it creates a closed circuit.
2. The battery has a specific potential difference or voltage, which can interfere with the electrical signals being recorded.
3. This interference causes a change in the extracellular recording, leading to a decrease in the recorded activity.

When the battery is inserted between the voltmeter electrodes, it completes a circuit and introduces a potential difference into the system. This potential difference affects the electrical activity being recorded in the extracellular space.

Normally, the extracellular recording measures the electrical signals from cells or tissues, such as action potentials or synaptic activity. These electrical signals are typically small in magnitude and require sensitive equipment like a voltmeter to detect.

However, when a battery is placed between the voltmeter electrodes, it adds an additional voltage to the system. This added voltage interferes with the electrical signals being recorded, causing a change in the extracellular recording. Depending on the magnitude and polarity of the battery's voltage, the extracellular recording may either decrease or increase. In this case, it decreased.

This interference occurs because the battery's potential difference affects the electrical potential across the extracellular space. This alters the resting membrane potential of the cells and modifies the way electrical signals propagate through the tissue.

As a result, the extracellular recording is no longer an accurate representation of the original electrical activity. To obtain accurate recordings, it is important to remove any external sources of electrical interference, such as batteries or other devices that can introduce a potential difference into the system.

To learn more about electrodes

https://brainly.com/question/33425596

#SPJ11

Explanation:

It prevents the cells of the body from using oxygen and when this happens the cells die. It is most harmful for the heart and the brain because they use a lot of oxygen.

Answer:

Cyanide prevents the cells of the body from using oxygen.

Explanation:

When this happens, the cells die. Cyanide is more harmful to the heart and brain than to other organs because the heart and brain use a lot of oxygen. Cyanide poisons the mitochondrial electron transport chain within cells and renders the body unable to derive energy (adenosine triphosphate-ATP) from oxygen. Specifically, it binds to the a3 portion (complex IV) of cytochrome oxidase and prevents cells from using oxygen, causing rapid death

The absence of a proper nucleus and membrane-bound organelles distinguishes prokaryotic cells from other types of cells. Endoplasmic reticulum, Golgi bodies, mitochondria, plastids, or membrane-bound vesicles are not present in prokaryotic cells.

It is possible for microorganisms to be bacteria, fungus, archaea, or protists. Virens and prions, which are typically categorized as non-living entities, are not considered to be microbes. Similar in size to prokaryotic cells are mitochondria and chloroplasts. Circular DNA is unique to both mitochondria and prokaryotic cells. A 70S type of ribosome can be found in chloroplasts, mitochondria, and bacteria.Prokaryotic cells lack the large number of membrane-enclosed organelles (such as mitochondria, lysosomes, and the Golgi apparatus) seen in eukaryotic cells, which also have a nucleus that is attached to a membrane.

To know more about prokaryotic cells, click here:

https://brainly.com/question/29771587

#SPJ4

The main difference between photosynthesis and cellular respiration is that photosynthesis is an anabolic process, where the synthesis of organic compounds occurs, storing energy whereas cellular respiration is a catabolic process, where the stored organic compounds are utilized, producing energy.

Answer: No the symptoms would have not been the same if the immune system would have worked properly.

Explanation:

Rheumatoid arthritis is caused when the immune system of the body produces the antibodies against the cells that lines the joints.

Due to this reason, the joints of the body develops pain, swelling, inflammation in it.

If there would have been properly functioning immune system in the body then this problem would not persist.

But if not treated on time can cause permanent damage of the joints.

Answer:

Rheumatoid arthritis is an autoimmune disorder. The immune system attacks the tissue between joints, causing the joints to distort, as seen in Model 1. The joints between bones have less cartilage, as shown in Model 2. People who do not have the disease do not have these symptoms, because their immune system does not treat healthy tissue as a threat.

Explanation:

the pattern of feature detectors firing in response to a stimulus creates the neural representation for representing what the stimulus is (e.g., a tree, a person, a ball, and so forth).

The pattern of feature detectors firing in response to a stimulus creates the neural representation of what the stimulus is. Feature detectors are specialized neurons in the sensory systems of the brain that respond to specific features or components of a stimulus, such as edges, shapes, colors, or movements.

When a stimulus is presented, different combinations and patterns of feature detectors in the brain become activated based on the specific characteristics of the stimulus.

The collective activity of these feature detectors forms a unique pattern of neural activation that represents the stimulus. This pattern encodes information about the stimulus's identity, allowing the brain to recognize and interpret it as a particular object or entity, such as a tree, a person, or a ball.

To learn more about neural representation here

https://brainly.com/question/28214962

#SPJ4

An extreme shortage of food with chronic hunger is termed as famine.

Several things, such as conflict, natural catastrophes, crop failure, population imbalance, pervasive poverty, an economic catastrophe, or government policies, can lead to a famine, which is characterized by a severe lack of food. Regional hunger, famine, epidemics, and increased mortality are frequently present alongside or after this occurrence. Famines have occurred at various points throughout history on every inhabited continent.

Famine is a widespread phenomenon where a large number of people in a nation or region lack access to sufficient food supply. Malnutrition, hunger, sickness, and high death rates are the results of famines. Conflict, forced migration, persistent poverty, food insecurity, natural catastrophes, and climate change are just a few of the many variables that can contribute to famine. Acute malnutrition deprives children of vital vitamins and minerals needed for healthy growth, leaving them vulnerable to illness, serious developmental delays, and even death. Millions of kids are taken out of school and put to labor in famine-like conditions, begging on the streets and sometimes only eating once a day.

We can learn more about famine here:

https://brainly.com/question/8177258#

#SPJ4

Answer: It supports the conclusion that they all originated from the same parent plant through cuttings.

Explanation: Samples called "cuttings" are taken from a plant and propagated in soil or water to create new identical plants. This lets someone keep the good characteristics of the parent plant.

Lagging strand synthesis overview

Instead of being formed as continuous duplex DNA, lagging strands are instead created as isolated, small DNA fragments known as "Okazaki fragments." In order to create an Okazaki fragment, a primer comprised of RNA-DNA needs to be produced by polymerase (Pol) -primase.

Mammals and the majority of species use bidirectional replication. To start and continue DNA synthesis, four fundamental elements are needed. Substrates, templates, primers, and enzymes are what they are.

The process of DNA replication is aided by a number of enzymes. By dissolving the hydrogen bonds that link the two strands of DNA together, these enzymes "unzip" DNA molecules. Then, each strand acts as a model for the construction of a fresh complementary strand. bases that are complementary adhere to one another (A-T and C-G).

Because they split double-stranded DNA into single strands, allowing each strand to be duplicated, DNA helicases are crucial for DNA replication.

To learn more about  DNA replication refer to:

https://brainly.com/question/14347138

#SPJ4

Answer:

The gene pool changes as natural selection works on a population

Explanation:

Nya, hope this helped :3

Answer:

If you are trying to measure the distance between 2 points on a piece of paper, multiple methods work well. There are three main types of horizontal or linear distance measurement. Direct Method. Optical Method.

Explanation:

hope this help '

dont pick me as the brainliest

Prior to 1926, goods from the west coast of Florida needed to travel by boat to the east coast for several reasons. Firstly, the infrastructure for road and rail transportation was not as developed as it is today, which made it difficult for goods to be transported overland. Additionally, the terrain of Florida, particularly in the central and southern parts of the state, was largely swampy and difficult to navigate by land.

Furthermore, the Panama Canal, which opened in 1914, made it easier and faster for ships to travel between the Atlantic and Pacific Oceans. This meant that many ships that had previously traveled around the southern tip of South America to get from one coast to the other began to use the canal instead. As a result, the east coast of the United States became a more important transportation hub for goods traveling between the two coasts, as ships could easily pass through the canal and then dock on the east coast to unload their cargo.

Finally, it's worth noting that in the early 20th century, the economy of Florida was primarily based on agriculture, particularly citrus farming. Citrus crops were typically grown on the east coast of the state, while the west coast was more sparsely populated and had fewer agricultural resources. As a result, it made sense for citrus and other agricultural goods to be transported by boat to the east coast, where they could be shipped to markets in other parts of the country.

To know more about east coast visit:-

https://brainly.com/question/30779708

#SPJ11

First Answer:

They both begin with similar events like chromosome replication.  However Mitosis involves only one division, while meiosis involves two divisions

Hope this helps a bit!

The structure that is most likely used for reproduction is the seed. So the correct option is A.

In the life cycle of a plant, the seed represents the embryonic stage. Seeds have three main parts. These are endosperm, embryo and seed coat.

The embryo is a very tiny plant and has a root and a stem and one or two leaves. The endosperm provides nutrition to the growing embryo. The nutrients are a combination of oil, starch and proteins.

Seeds are important features of a category of plants called spermatophytes. The word spermatophyte means seed-producing plants. These plants are divided into two categories.

Thus, the structure that is most likely used for reproduction is the seed.

Therefore the correct option is A.

Read more about seeds, here

https://brainly.com/question/15976369

#SPJ2

Answer:  

When discussing the concentration of a solute in a solution, there are several ways to express it. The choice of method depends on the specific requirements of the situation and the nature of the solute and solvent involved. Here are some common ways to express solute concentration:

Molarity (M): Molarity is one of the most frequently used units of concentration. It represents the number of moles of solute dissolved in one liter of solution. Molarity (M) is calculated by dividing the moles of solute by the volume of the solution in liters.

Molality (m): Molality is similar to molarity, but it expresses the concentration of the solute in terms of the number of moles of solute per kilogram of solvent. Molality (m) is calculated by dividing the moles of solute by the mass of the solvent in kilograms.

Mass percent (% m/m): Mass percent is a ratio of the mass of the solute to the total mass of the solution, expressed as a percentage. It is calculated by dividing the mass of the solute by the mass of the solution and multiplying by 100.

Volume percent (% v/v): Volume percent is similar to mass percent, but it represents the ratio of the volume of the solute to the total volume of the solution, expressed as a percentage. It is calculated by dividing the volume of the solute by the volume of the solution and multiplying by 100.

Parts per million (ppm) and parts per billion (ppb): These units are used when the solute concentration is extremely low. Parts per million represents the ratio of the number of moles of solute to one million moles of solution, while parts per billion represents the ratio of the number of moles of solute to one billion moles of solution.

Normality (N): Normality is a concentration unit that takes into account the chemical reactivity of the solute. It represents the number of equivalents of solute per liter of solution, where an equivalent is a measure of the solute's ability to undergo a chemical reaction.

It's important to note that these concentration units may vary depending on the field of study or specific application. Choosing the appropriate unit is crucial for accurate communication and analysis in the context of solute concentration.

Explanation:

Genetic inferences can be made on the basis of consistently observed phenotypic differences. This statement is true. Phenotypic differences can be observed between different individuals, and these differences may be due to genetic factors.

What is a phenotype?

A phenotype refers to the observable characteristics of an individual that arise as a result of the interaction between their genotype and the environment. It is the physical appearance of an individual. These observable characteristics may be used to infer information about the individual's genotype, which refers to their genetic makeup or genetic constitution.

The phenotype is affected by several factors, including genetics, environment, and interactions between the two. As a result, consistent phenotypic differences between individuals may be due to genetic differences.

In conclusion, genetic inferences can be made on the basis of consistently observed phenotypic differences. These differences can be used to infer information about the individual's genotype.

To know more about Phenotypic, visit:

https://brainly.com/question/28447708

#SPJ11

Answer: a

Explanation:

i did it

The teenager must have been vaccinated against the disease.

Vaccination is a process of obtaining prophylactic treatment against diseases.

The prophylactic treatments given during vaccinations are called vaccines. Vaccines are usually developed from the pathogen of diseases or their components.  

Vaccines prevent individuals from being infected with diseases they have been vaccinated against.

Chickenpox is an infectious disease. Thus, the only way that the teenager in question could have taken to not have contracted the disease is a vaccination against the disease.

More on vaccines can be found here: https://brainly.com/question/6683555

#SPJ1

which is not of any specific use because electrical energy, and the forms in which we store it, are commonly very low entropy systems.

The lower the destruction the more they "want" to energy dissipate and the harder it is to stop that propensity to turn into (ultimately) heat.

Electrical energy is a continuous flow of electrons that move within a conductor. To want to supply it in that form is energy as unrealistic as wanting to store wind. So to do it, you have to change the electricity into another form (chemical, for example, like batteries) and turn it back into electricity when you required it.

So we can conclude that  The basic difficulty is that energy electricity is a flow of energy that travels at almost the speed of light. That makes storage very hard.

Learn more about energy here: https://brainly.com/question/13881533

#SPJ1

Answer:

Explanation:

1) d

2) a

3) b

4) b

5) c

6) a

7) a

8) d

hope this helps

plz mark it as brainliest!!!!

Answer:

A- and

Explanation:
You are also going on Saturday. So it would be “and”.

Answer:

When the veins in leaves are irregularly distributed to form a channel, it is known as reticulate Venation. Plants with reticulate venation in their leaves are likely to have tap roots. Plants like carrot or rose have leaves with reticulate venation and tap roots.

Explanation:

hope it helps :D

Answer:

Explanation:

those plants that have parallel venation leaves have fibrous root system and the plant that have reticulate venation of leaves have tap root system.

The correct answer is C) association neurons inhibiting mitral cells or tufted cells.

Olfactory adaptation is the phenomenon by which the sense of smell adjusts to continuous stimulation by a particular odorant, resulting in a decreased perception of the odorant. This adaptation is thought to occur through a variety of mechanisms, but one of the most important involves the inhibition of mitral or tufted cells in the olfactory bulb by association neurons.

These association neurons, located in the granule cell layer of the olfactory bulb, receive input from both olfactory receptor neurons and mitral/tufted cells. When activated, they release inhibitory neurotransmitters that reduce the firing rate of mitral/tufted cells, thereby decreasing the transmission of information about the odorant to the brain. This leads to a reduced perception of the odorant and allows the olfactory system to adapt to continuous stimulation.

Learn more about tufted cells.

https://brainly.com/question/31732130

#SPJ4

The following which are sustainable farming techniques include the following below:

This is referred to as the practice which involves the cultivation of crops and rearing of livestock for different types of purposes.

Farming techniques involve different parameters such as the soil and the environment in which they are planted, For example tilling the soil frequently will increase the risk of erosion as the uppermost part of the soil are easily washed away by water, wind etc.

Sustainable farming practices include planting trees in between rows of crops as it shields the young plant from harsh conditions and ensures that its growth and development is at optimum.

Rotating crops each year rotating crops each year ensures that some plants supply certain types of nutrients which are used by subsequent ones.

Read more about Farming here https://brainly.com/question/14533586

#SPJ1

Unit 5 Lesson 4: Farming Land Use
Answer: I Just Took The Quick Check For: Farming Land Use Quick Check.
All The Answers are,
Which of the following are sustainable farming techniques? Select the two correct answers.

A. planting trees in between rows of crops
E. rotating crops each year
In which situation would hydroponics be most useful for sustainable farming?
C. a desert area with limited rainfall

Which issue does terrace farming help solve?
A. heavy rains washing away soil from mountainous farms
By The Way all the answer's switch around so since I said a and E
E might be B, or A might be C. so don't look at the letters just look at the words.
Anyways all these answers are correct 100% 3/3

The great plain citrin in terms of average temperature patterns, the region does have a distinct north-south gradient, with such a hotter south as well as a colder north.

Temperature seems to be inversely proportional to latitude (sort of), so as you increase latitude (move toward the equator), temperature decreases. This is why Oklahoma is typically closer to the sun than Minnesota.

The Great Plains soil groups have been related to rainfall as well as natural grass cover. Deep, black soils (mollisols) with such a lot of organic matter developed within a more humid region to taller, greater loads grass cover. Soils with much less moisture have been lighter, shallower, and contain less organic matter, whereas soils within the most arid regions could be thinner, lighter in colour, as well as contain less organic matter.

To know more about average temperature

https://brainly.com/question/12516501

#SPJ4

DNA replication occurs during the S phase and cell replication occurs during the interphase phase.

In interphase, there is a process of preparation and storage of energy by cells to carry out the division. During interphase, the cell nucleus (nucleus) and daughter cells (nucleolus) are visible. However, the chromosomes in the cell are not visible because they are still in the form of chromatin, which are fine threads composed of DNA, RNA, and protein molecules.

The interphase stage can be divided into three:

Learn more about interphase here https://brainly.com/question/14130118

#SPJ4

They can be categorized as Type III toxins because they disrupt cellular internal processes.

The "A" component is typically the "active" element, and the "B" component is typically the "binding" portion, which is why they are called AB toxins.

The toxic part of the organism is made up of an enzyme in the a section, and the B portion binds to host cell receptors.

A-b toxins, which are made up of the two polypeptide subunits known as a and b, make up the majority of exotoxins. While the a component has harmful effects on the cell, the b component works to bind or adhere to the host cell.

Because they consist of two parts, they are known as AB toxins. Enzymatic activity that affects intracellular targets is present in component A. The B component transports the A component through cell membranes into the cytoplasm by binding to extracellular receptors.

Learn more about a-b toxins to visit here;

https://brainly.com/question/29480781

#SPJ4

Answer:

c water storage

Explanation:

this is because it rains in grasslands more than savanas so plants in the savana need water storage while grassland plants don't