The purpose of mitosis is to replicate the cells. If the cells didn't go through mitosis, they would not replicate and we would not have any cells, which would cause us to die. T/F

Answer:

2) The same number of chromosomes and genes identical to those of the parent cell

Answer:

46,251 $

Explanation:

14,280,000,000,000÷308,745,538

take the total gdp and divide that by population size

Answer:

Glucose

Explanation:

Most life on Earth depends on photosynthesis. The process is carried out by plants, algae, and some types of bacteria, which capture energy from sunlight to produce oxygen (O2) and chemical energy stored in glucose (a sugar).

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Answer:

Dehydration

Explanation:

deficiency of water in the body. Vomiting, diarrhea, excessive sweating, burns, kidney failure, and use of diuretics may cause dehydration

Polarity is caused by electronegativity. Electronegativity is the ability of an atom to attract electrons and when in a molecule there is a region of low electronegativity and a region of high electronegativity we say that the molecule is polar.

Regulation of the kinase activity of the Cdc2 (CDK) and cyclin complex is achieved through a variety of mechanisms, including phosphorylation and dephosphorylation, the binding of inhibitor proteins, and the degradation of cyclin.

First, phosphorylation and dephosphorylation of Cdc2 (CDK) can regulate its activity. Phosphorylation of the complex by the protein kinase Wee1 inhibits its activity, while dephosphorylation by the phosphatase Cdc25 activates it.

Second, the binding of inhibitor proteins can also regulate the kinase activity of the Cdc2 (CDK) and cyclin complex. For example, the protein p27 can bind to the complex and prevent it from phosphorylating target proteins, thereby inhibiting its activity.

Finally, the degradation of cyclin can also regulate the kinase activity of the Cdc2 (CDK) and cyclin complex. The protein APC (anaphase promoting complex) targets cyclin for degradation, leading to the inactivation of the Cdc2 (CDK) and cyclin complex.

Overall, regulation of the kinase activity of the Cdc2 (CDK) and cyclin complex is achieved through a variety of mechanisms that work together to ensure proper progression through the cell division cycle.

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avoid thinking about the illness

In many cases, even after a consultation, patients become truly alarmed by the symptoms and thus delay taking recommended treatments and tests etc. to avoid thinking about the illness

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True. Haemophilus meningitis is a severe form of acute bacterial meningitis that was once a leading cause of meningitis in the United States, particularly in children under the age of five.

However, the introduction of the Haemophilus influenzae type b (Hib) vaccine in the 1980s has drastically reduced the incidence of Hib-related meningitis.

In fact, since the widespread use of the vaccine, Hib-related meningitis has become virtually unknown in the United States.

While other strains of bacteria can still cause meningitis, the Hib vaccine has been highly effective in preventing one of the most common and severe forms of bacterial meningitis.

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The axonal terminals are specialized to release the neurotransmitters of the presynaptic cell. The end bulb contains synaptic vesicles which are filled with a neurotransmitter substance.

The axon terminals, which also are intended for this function, diffuse across the synaptic from the presynaptic cell. The end bulb contains diffuse across the synaptic, filled with a neurotransmitter molecule.

By traveling across cells and attaching to receptor proteins on their intended recipients, neurotransmitters are able to interact. Each neurotransmitters attaches to a different receptor. For instance, catecholamine molecules attach to dopamine in the brain. When they link, they activate the target cells.

What type of neurotransmitter are they, out of the four types?

Every neurotransmitter in the mind and body serves a specific purpose. We shall focus on these six important receptors—glutamine, nicotinic receptors, dopamine, epinephrine, and serotonin—instead of the many minor and major ones.

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Answer:

a) 3' AGCATCCGA 5'

b) 5' GGCTTACGTA 3'

Explanation:

Based on complementary base pairing rules, T pairs with A, whereas C pairs with G.

In addition, because complementary strands run in complementary opposing directions, if the original sequence is in the 3' → 5' direction, our new strand is in the 5' → 3' direction, and the opposite for the original sequence that starts in the 5' → 3' direction.

According to my search:

Researchers hypothesize that all organisms on Earth today originated from a single cell that existed some 3.5 to 3.8 billion years ago.

some 700 million years ago, a single cell gave rise to the first animal, a multicellular organism that would eventually spawn the incredible complexity and diversity seen in animals today.

Answer:

Answer is the amount of water in a cup doesn't change.

Explanation:

"Equilibrium is achieved when the state of a reversible reaction of opposing forces cancel each other out. While in a state of equilibrium, the competing influences are balanced out. Imagine a cup with a hole in it being filled with water from a tap. The level of water in this cup would stay the same if the rate at which the water that flows inside is the same as the water that flows outside and thus, option C will be the correct answer."

"Equilibrium is defined as a state of balance or a stable situation where opposing forces cancel each other out and where no changes are occurring. An example of equilibrium is in economics when supply and demand are equal. An example of equilibrium is when you are calm and steady."

Retroviruses, such as HIV, are an exception to the central dogma as they reverse transcribe their RNA genome into DNA, challenging the flow of genetic information.

The central dogma of molecular biology describes the flow of genetic information from DNA to RNA to protein. While most viruses adhere to this central dogma, there are exceptions. The retrovirus is one such exception.

Retroviruses, like HIV, possess RNA as their genetic material, but they are unique in their ability to reverse transcribe their RNA genome into DNA. This DNA is then integrated into the host cell's genome, where it can be transcribed into RNA and translated into proteins.

This process involves the reverse transcriptase enzyme. Retroviruses essentially reverse the flow of information from RNA to DNA, challenging the central dogma.

In contrast, DNA viruses and RNA viruses generally follow the central dogma, with DNA viruses using DNA as their genetic material and RNA viruses using RNA to directly encode proteins without reverse transcription.

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Answer: yes

Explanation:

The main science concept discussed in the article "A Step-by-Step Guide to the Scientific Method" is the scientific method itself. The scientific method is a systematic and logical approach that scientists use to investigate and understand the natural world. It involves a series of steps, including making observations, asking questions, forming a hypothesis, conducting experiments, analyzing data, and drawing conclusions. The article likely provides a detailed explanation of each step and how they contribute to the overall scientific process.

Science is a systematic endeavor with scientific methods in developing and organizing knowledge as evidenced by explanations and predictions that are tested as human understanding of the universe and its world. These aspects are limited in order to produce definite formulations. Included in science are Physics, Biology, and Chemistry. While mathematics is not included in science because mathematics is considered as a provider of tools and frameworks used in the natural sciences. Thus, the fields of science included in Science are Physics, Biology, and Chemistry.

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Answer:

D

The cell is 80% water, and the cell's environment is 20% water.

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Explanation:

The cell is 80% water, and the cell's environment is 20% water.

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Answer:

A: Cool, Dark Nebula

Explanation:

Before a star is born, the matter that will become the star exists as a interstellar gas and dust.  The stars are formed as a result of the force of gravity compresses atoms in the interstellar gas. Then the fusion reaction begins. During this fusion reaction the temperature gets extremely high and all the material evolves into a hot bright star.

Answer:

The article revealed the fact that Black inventors have always played an active role in inventing new things in America. In the 18th and 19th centuries they were denied the right to patent their inventions because of their status as slaves. This has changed for the better in present times as many Black inventors are being granted patent rights.

Explanation:

The article, "America’s always had black inventors – even when the patent system explicitly excluded them", by Shontavia Johnson, explained the active role that Black Americans, both free and slaves played in inventing things in the United Slaves. The article explained that although the patent rights signed into the constitution in 1787 was written in a neutral tone, it did not change the fact that black inventors were actually denied patent rights.

This segregation affected people like Henry Boyd, Ned, Benjamin Montgomery among others. In recent times, this segregation has significantly been curbed as many Black inventors are now owners of patents. An example is Lonnie Johnson, inventor of the Water Gun and owner of more than 80 patents.

Answer: The article revealed the fact that Black inventors have always played an active role in inventing new things in America. In the 18th and 19th centuries they were denied the right to patent their inventions because of their status as slaves. This has changed for the better in present times as many Black inventors are being granted patent rights.

Explanation: To be Honest

Answer:

the moon is our natural satellite.

Answer:

As a biological stain, iodine is useful for studying plant cells because it stains starch blue-black and in animal tissue, it can help in the demonstration of nuclei and cell membranes

At the beginning of an immune response, most antibodies are IgM. However, as the response progresses, you see production switch predominantly to the class of antibodies called IgG.

IgG antibodies are smaller than IgM antibodies and can more easily diffuse into tissues. They are also the most abundant antibodies in the blood and can persist in the body for long periods of time, providing long-term immunity against specific pathogens.

Antibodies, also known as immunoglobulins (Ig), are proteins produced by B cells in response to the presence of foreign substances, such as bacteria or viruses, in the body. They are a key component of the immune system and play a crucial role in identifying and neutralizing these foreign substances, known as antigens.

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At the beginning of an immune response, most antibodies produced are IgM. However, as the response progresses, the production of antibodies predominantly switches to IgG.

Why is there a shift between IgM and IgG?

This shift occurs because IgG has a longer half-life and greater affinity for antigens compared to IgM. Antibodies are proteins produced by B cells in response to the presence of antigens. Antigens are substances that can stimulate the immune system to produce an immune response. The immune system recognizes antigens as foreign and produces antibodies that bind to them, providing immunity against future exposures.

What is class switching?
At the beginning of an immune response, most antibodies are IgM. As the response progresses, the production switches predominantly to the class of antibodies called IgG. This process is known as "class switching" or "isotype switching." It occurs when B cells, which produce antibodies, change the type of antibody they produce in response to an antigen, ultimately enhancing the effectiveness of the immune response.

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Explanation:

Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.

In the theory of natural selection, organisms produce more offspring than are able to survive in their environment. Those that are better physically equipped to survive, grow to maturity, and reproduce. ... Biologists have since observed numerous examples of natural selection influencing evolution.

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Answer:

40% increase

Explanation:

Percentage Increase Formula:

Percentage Increase=[(Final Value−Starting Value)/|Starting Value|] ×100%

To Calculate Percentage Increase:

   1) Subtract final value (later value) minus starting value (initial value)

  2) Divide that amount by the absolute value of the starting value (initial value)

  3) Multiply by 100 to get percent increase

Keep in mind: If the percentage is negative, it means there was a decrease and not an increase.

So for your problem,

[(420-300)/300]*100% = 40% increase