HELP ASAP!!!! 20 POINTS!!!

Situation: A scientist collected the data below in relation the the reproduction of the cells in a science experiment.

Part A: Explain the type of growth that is shown in this experiment.

Part B: What stage of the cell cycle would you expect most of the cells to be in? Explain.

Overexpression of growth factors or the absence of suppressor proteins can lead to rapid cell division.

The study of the cell cycle focuses on the apparatus that regulates the timing and frequency of DNA duplication and cell division during the mitotic (M) phase, the cell divides its duplicate DNA and cytoplasm to make two new cells. M phase involves two distinct division-linked processes such as mitosis and cytokinesis. A cell cycle is a series of events that takes place in a cell as it fattens and divides. A cell spends most of its time in what is called interphase, and through this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and concluded its division.

So we can conclude that the division cycle of most cells comprises four  processes such as cell growth and DNA replication.

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Answer: It is a wire

Explanation:

The frequency of a wave if the velocity is 436.1 m/s and the

wavelength is 17.1 meters is 25.5Hz

What is frequency ?

The quantity of waves that pass a set location in a predetermined period of time is known as frequency. Therefore, if a wave passes through in half a second, the frequency is 2 per second. The frequency is 100 times per hour if it takes 1/100 of an hour.

The temporal rate of change observed in oscillatory and periodic phenomena, such as mechanical vibrations, audio signals (sound), radio waves, and light, is specified by the frequency, an essential parameter in science and engineering.

v = f λ

v = velocity of the wave

f = frequency

λ = wavelength

f = v/ λ =  436.1/17.1 = 25.5 Hz

The frequency of a wave if the velocity is 436.1 m/s and the

wavelength is 17.1 meters is 25.5Hz

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Answer:

E: Requires oxygen

Explanation:

During respiration, glucose reacts with oxygen to form energy stored as ATP which can later be used by the cell.

Following the Hardy-Weinberg equilibrium theory, in a population of six million people, 1,080,000 individuals are healthy and carriers (heterozygous) for the trait.

The Hardy-Weinberg equilibrium is a theory that states that populations in equilibrium get the same allelic and genotypic frequencies generation after generation.

These populations do not evolve. No evolutive forces are acting on them.

Assuming a diallelic gene, frequencies are

Allelic frequencies

Genotypic frequencies

In a population in equilibrium,

We will consider these equations to solve the problem.

Because we have the frequency of the homozygous recessive genotype, we can get the allelic frequency.

Now, by clearing the equation p + q = 1, we can get the dominant allele frequency. And then, the frequency of the homozygous dominant genotype.

Finally, we can get the frequency of the heterozygous genotype

The number of individuals with each phenotype in the population is,

In a population of six million people, 1,080,000 individuals are healthy and carriers (heterozygous) for the trait.

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A chemical agent that makes holes in the inner membrane of the mitochondria would stop the movement of electrons down the electron transport chain.

This is referred to as a subatomic particle and it has a negative charge. It is involved in a chemical reaction when it is either gained, lost or shared thereby forming different types of bonds.

A chemical agent that makes holes in the inner membrane of the mitochondria would stop the movement of electrons down the electron transport chain because of the loss of energy which occurs when  this is done thereby making option A the correct choice.

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Infections with the Dirofilaria worm result in the disease known as dirofilariasis. One type, known as "heartworm disease" in dogs, is brought on by D. immitis.

If a dose is missed, the majority of monthly heartworm medications provide at minimum 15 days of protection. This implies that even if you are just a week two late, your pet is probably still protected at that period and won't likely contract the infection.

Heartworms can occasionally be contracted after already being bitten by an anopheles mosquitoes. However, because humans are not heartworms' natural hosts, the larvae typically move to the arteries and lungs where they die before maturing into adult worms.

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The variations in the traits of fox population made them survive more in the cold climate.

What are variations?

What are adaptations?

Adaptation is the feature of an organism's behavior or physical makeup that enhances the organism's capacity for survival in its environment.

Therefore, variations leads to adaptation of organisms which increases their survival rate. Also the genetic variations are passed on to next generations.

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Fertilizers maximize crop yield and increase plant production so, it is used by the farmers in the field.

Fertilizers are the food for plants which provide nutrients to the plants for growth.  These are the chemical substances which is applied to the crops to increase their yields and production.  It can be of natural or synthetic origin which is applied to soil or to plant tissues to supply plant nutrients.

There are three types of fertilizers which provide the growth to the plants.

1. Nitrogen

2. Phosphorus

3. Potassium

These fertilizers can be used in the field

Thus, fertilizers maximize crop yield and increase plant production so, it is used by the farmers in the field.

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Only a small amount of the energy stored in food is available to the next organism in a food chain as a result of losses to the environment because 90% of energy is lost in the environment as heat.

A food chain is described as a linear network of links in a food web starting from producer organisms and ending at an apex predator species, detritivores, or decomposer species.

A food chain also shows how organisms are related to each other by the food they eat.

We know that energy is passed up the food chain from one trophic level to the next but only about 10 percent of the total energy stored in organisms at one trophic level is actually transferred to organisms at the next trophic level. The reason for this is that he rest of the energy is used for metabolic processes or lost to the environment as heat

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The value of the equation illustrated as a+b-2c take 3a+2b-4c is 2c - b.

An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenario. It is vital to note that an equation is a mathematical statement which is made up of two expressions that are connected by an equal sign.

Based on the information, from a+b-2c we are to take away a+2b-4c.

This will be illustrated this:

(a + b - 2c) - (a+2b-4c)

Collect like terms

a + b - 2c - a - 2b + 4c

a - a + b - 2b - 2c + 4c

-b + 2c

= 2c - b

The value is 2c - b.

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Complete question

From a+b-2c take away a+2b-4c

A group of snakes that is unable to cross a river and is separated from a group of snakes on the opposite side is an example of the geographic isolation process (Option B).

The geographic isolation process refers to all types of geographic barriers such as rivers that limit the gene flow between individuals of the same species.

Therefore, with this data, we can see that the geographic isolation process is associated with a limited gene flow in a population due to geographic barriers between individuals.

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Based on the given symptoms by the patient who is a 35-year- old male who is complaining of mild-grade fever and a persistent, productive cough that at times appears to have blood, he is most likely suffering from rheumatoid arthritis

This refers to the medical condition that a person can have which can cause them to have pain, swelling, and stiffness in joints as also Fever, fatigue or tiredness, and general body weakness.

Hence, we can see that the patient who complains of these symptoms has said that he has lost weight in the past 6 months and often wakes up drenched in sweat and had recently traveled to India on business, and he should immediately be put on medication and further tests.

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Answer:

E.g. E. coli—20 min, so in an hour 1 cell would turn into 8.

Given that 60 billion cells are produced in a day in the human body, the number of cells that will be produced in an hour can be calculated by dividing the number of cells by the number of hours in a day. There would be approximately 2.5 billion cells produced in one hour.

The human body regularly replaces its own cells. Every day, roughly 330 billion cells, or 1% of all our cells are replaced. The equivalent of a new you will have been replenished in 80 to 100 days with 30 trillion.

Each second approximately one million cells of the body die which means 1.2 kg of the cells are destroyed each day. All the cells in the body have a definite lifespan after which they are replenished.

The dead cells of the body are engulfed in a process called phagocytosis and are transferred to the lysosomes where they are degraded.

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Answer:

If the Sun disappeared or the Earth were flung out of its orbit the travel alone through interstellar space, then I think a small population of humans could survive (although we might need some advance warning).

While the surface of the Earth would freeze and become uninhabitable pretty quickly, there is enough internal heat in the core (left over from the formation of the Earth and generated by radioactive decay) that it would remain warm underground for billions of years. A small population (a few hundred people, maybe) could live in a suitably modified deep mine. With either nuclear power or geothermal power, they could power life support systems and grow food hydroponically. There are enough suitable deep mines for several of those survivor colonies.

Explanation:

Answer:

B. The reactions don't require light to be carried out.

Explanation:

Dark reaction is a light-independent process. This reaction occurs in the stroma of the chloroplast where it utilizes the products of the light reaction. Since this is not directly dependent on light, it is called as the dark reaction.

Answer:

B that other person was just had a  

weird answer

Explanation:

Answer: B, a seed coat

Explanation:

A steroid hormone approaches its target cell, therefore the hormone will enter the nucleus and is what will happen first which is therefore denoted as option A.

This is referred to as a chemical messenger which is released directly into the bloodstream and is responsible for the control of certain metabolic reactions occurring in the cell and  an example is steroid hormone such as androgens.

In a situation whereby a steroid hormone approaches its target cell, it first passes through the plasma membrane before it then becomes adhered to the receptors which are present in the nucleus or cytoplasm.

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That oxygen helps your body to release chemical energy that is stored in sugars and other carbon based molecules. The energy is released to produce ATP. This process of using oxygen to produce ATP by breaking down carbon-based molecules molecules is called cellular respiration.

In Science, cellular respiration can be defined as a series of metabolic chemical reactions that typically occur in both prokaryotic and eukaryotic cells within living organisms, in order to produce energy in the form of adenosine triphosphate (ATP).

Generally speaking, the first step of cellular respiration is a biological and chemical process that is referred to as glycolysis.

In conclusion, we can reasonably infer and logically deduce that all living organisms such as humans, animals, eukaryotes, etc., breathe in oxygen and exhale carbon dioxide in order to survive, which occurs through a process that is referred to as cellular respiration.

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The elements are located in certain groups and families based on their Similar chemical behavior because they have the same number of valence electrons and similar chemical properties.

Hope this helps :)

Answer:

Poor quality produce

Explanation:

Because synthetic fertilizers are man-made,It has higher levels of Nitrogen and phosphorus which causes weak bones, increased diseases of heart and stroke tendency,hence poor quality products when compared with natural fertilizers

According to the diagram the number of No. of Carbon atoms is 9, the number of oxygen atom is 2, the number of hydrogen atom is 9 and the number of nitrogen atom is 0.

The molecule which can be made by the carbon , hydrogen as well as nitrogen atom can be referred as organic molecule.

A complex molecule known as an organic was predominantly bonded carbon atoms joined to other atoms of the same element and/or additional carbon atoms. Each and every living creature on Earth is made up of organic components. Atoms that are bound together form molecules.

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Answer:

My best guess is "The hemoglobin gene contains a mutation".

Explanation:

Sorry, I'm not an expert so bear with me!

One more common hemoglobin-related mutation is sickle-cell anemia. It occurs when the amino acid in hemoglobin is substituted from glutamate to valine. It is considered a mutation and is a direct swap from one specific amino acid (glutamate) to a different amino acid (valine) in the same position in the hemoglobin. So, considering that our example (sickle-cell anemia) fits the criteria of swapping one amino acid for another in the hemoglobin, is a mutation, and is passed down genetically (meaning that the hemoglobin gene would need to carry the mutation) it does look a bit like it fits your parameters!

Thus, as I understand it the hemoglobin gene carrying a mutation would make sense as the most likely cause of the amino acid variation.

Again, this is based on 10 minutes of googling. I hope this helps, but apologies if I'm incorrect!! Good luck :)

Answer: no

Explanation:

because binding of lactase to the repressor protein  always the RNA polymerase to bind to promoter thus the structural genes could the production of enzyme lactase however if lactase doesnt bind the active repressor protein binds to the operator hindering the rna polymerase from binding on the promoter so there will be no genes for lactase production transcribed

The socioeconomic impacts of flooding are decreased purchasing and production power.

This is referred to as the process in which water overflows and submerges the land which is usually dry. It leads to different types of negative consequences such as disruption of the ecosystem etc.

This occurrence leads to the displacement of people from their homes as a result of the place not being conducive enough for living due to the presence of water and other types of organisms in the home and can be prevented by providing appropriate drainage channels.

It leads to erosion in agriculture and the crops are destroyed which will lead to it decreasing production power. The purchasing power is also reduced as it threatens the livelihood of a vast majority of the affected individual.

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Pyruvate from glycolysis gets delivered to the mitochondria if oxygen is available. The mitochondrial matrix, which is a region inside the cells, is where the pyruvate is transferred across membranes.

Three compartments are defined by the mitochondria's inner and outer membranes; each has a unique function and associated protein parts. The mitochondrial matrix is the final space, enclosed by the inner membrane.

There are numerous uses for the mitochondrial matrix. The citric acid cycle is carried out there. This is a critical phase in the production of ATP, an energy molecule used in cell respiration. It has a component known as a nucleoid that houses the mitochondrial DNA.

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Answer:

They are basic functional unit of life

When a neuron is not processing information It is negatively charged.

The correct option is A.

Signals are sent and received by neurons, often referred to as nerve cells, from your brain. Although they share many characteristics with other cell types, neurons are physically and functionally distinct. Neurons are able to communicate electrical and chemical messages to other cells via specialised extensions known as axons.

The bulk of neurons in vertebrates are found in the central nervous system, however some are found in peripheral ganglia and many neurones are found in sensory organs like the retina and ear.

Three basic components make up a neuron: a cell body, two extensions known as an axon, as well as a dendrite (3). The nucleus (2), which regulates the functions of the cell and houses its genetic material, is located inside the cell body. The axon resembles a tail and carries signals out of the cell.

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The complete question is -

When a neuron is not processing information:

A- It is negatively charged

B- It has no charge

C- It is positively charged

D- It is sometimes positively charged, sometimes negatively charged