an increase in the frequency of beneficial mutations in a population over many generations is called .

Organelles in the domain of Archaea do not have membranes surrounding them, in contrast to those in the domain Eukarya. So, the correct option is C.

The realm of single-celled organisms is called Archaea. These microbes are prokaryotes because they lack cell nuclei. The term "archaebacteria," which was used to describe archaea when they were first categorised as bacteria, is no longer in common usage.

Single-celled microorganisms known as archaea lack membrane-bound organelles and a cell nucleus. Archaea, like other living things, have a semi-rigid cell wall which shields them from their surroundings. Organelles in the domain of Archaea do not have membranes surrounding them, in contrast to those in the domain Eukarya.

Therefore, the correct option is C.

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The guiding region of the sgrna is twenty nucleotides long.

The length of the most widely utilised gRNA is approximately 100 base pairs. Any genomic region that is complementary to that sequence can be targeted by the CRISPR Cas9 system by changing the 20 base pairs near the 5' end of the gRNA.

A guide sequence domain, or gRNA in our study, is intended to be present at the 5′ end of sgRNA and to be complementary to the target sequence.

CRISPR-Cas9 locates and accurately chops target protospacer DNA by following the guidance of a 20 nucleotide RNA (gRNA), 3 base pairs upstream of a PAM (Protospacer Adjacent Motif).

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Answer:

i think this is the answer i also need to do this for my homework so i need to know if its correct

Explanation:

As the temperature increases the water starts to evaporate once the water evaporates there will be less water in lakes, rivers, and more. The more the temperature increases the more water evaporates so after it evaporates the aquatic ecosystem change to land ecosystem overtime. and may also cause fossils to  be in land ecosystems such as in mountains and more

Answer:

The answer is 50%

Explanation:

Tt. Tt

Tt. Tt

Answer:

A

Explanation:

You will always be going uphill which shows a negative acceleration, the other choices have changes of speed or going downhill.

A graph with horizontal axis time (seconds) and vertical axis position (meters) shows a negative acceleration.

Acceleration is a type of vector quantity and has both magnitude and direction;  these are the second derivative of position with respect to time and it is first derivative of velocity.

The change in the velocity of an object called as acceleration where the Velocity is a vector quantity with both magnitude and direction.

Acceleration can also be defined as a change in the direction or speed. for example, driving a car and pressing the accelerator makes the car go faster.

Acceleration(a)= final velocity(v) –initial velocity(u) time(t), If the velocity at the beginning was ‘u′, and the increased to velocity, ‘v′,  after "t"  time .

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Answer:

1.) RNA polymerase find promotor

2.) RNA polymerase unwinds strand

3.) RNA polymerase adds new nucleotides

4.) RNA polymerase reaches termination site

5.) Transcript is released

The correct order is 1. RNA polymerase unwinds the strand, 2. RNA polymerase finds promoter, 3. RNA polymerase adds new nucleotides, 4. The transcript is released, 5. RNA polymerase reaches the termination site.

The process of transcription involves the synthesis of RNA from a DNA template.

RNA polymerase unwinds strand: RNA polymerase recognizes the DNA strand that needs to be transcribed and unwinds the double helix, separating the two DNA strands.

RNA polymerase finds promoter: RNA polymerase searches for and binds to a specific DNA sequence called the promoter, which marks the starting point for transcription.

RNA polymerase adds new nucleotides: Once bound to the promoter, RNA polymerase begins moving along the DNA strand, reading the template strand and adding complementary RNA nucleotides. This process is known as elongation.

The transcript is released: As RNA polymerase moves along the DNA template, it continues adding nucleotides to the growing RNA molecule. Eventually, it reaches a termination site on the DNA, signaling the end of the gene or region being transcribed. At this point, the RNA polymerase releases the completed RNA transcript.

RNA polymerase reaches the termination site: The termination site is a specific DNA sequence that signals the end of transcription. Once RNA polymerase reaches this site, it detaches from the DNA template, and the RNA transcript is released.

Thus, the correct order is 1. RNA polymerase unwinds the strand, 2. RNA polymerase finds promoter, 3. RNA polymerase adds new nucleotides, 4. The transcript is released, 5. RNA polymerase reaches the termination site.

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Normally, pancreatic enzymes assist the intestines in breaking down food. In a child with cystic fibrosis, the pancreatic duct is blocked by mucus, making it impossible for these natural enzymes to reach the gut.

Undigested lipids and proteins result in fatty stools in the absence of pancreatic enzymes. Normal stools should result from pancreatic enzyme therapy; fatty stools are produced when therapy is not adhered to. Bloody stools, pee with glucose, or bloody urine are not signs of noncompliance. Steatorrhea indicates that your stools contain too much fat (poop). It is a sign of malabsorption of fat. This indicates that your digestive system is having difficulty metabolising and absorbing lipids. Your organs could be impacted by this issue, one or more.

The complete question is:

At a previous visit, the parents of an infant with cystic fibrosis received instruction in the administration ofpancrelipase. At a follow-up visit, which finding in the infant suggests that the parents require more teachingabout administering the pancreatic enzymes?

a)Normal stools

b)Fatty stools

c)Bloody stools

d)Liquid stools

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Answer:

i would say 6 but it might not be right

Explanation:

Answer:

All of the above

Explanation:

hope this helps

Logistics growth is a type of population growth pattern rises slowly at first, then increases rapidly, and ultimately slows down and levels off.

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Answer:

The smooth ER is responsible for making lipids.

Explanation:

Ribosomes synthesize proteins.

The rough ER plays a significant role in synthesizing proteins

The Golgi Apparatus prepares lipids and proteins for use.

There are four types of gametes that will be produced by individuals of AABbcc genotype. The two possible combinations for A are AA and Aa, the two possible combinations for B are BB and Bb, and the two possible combinations for c are cc and c. This gives us a total of 2 x 2 x 2 = 4 different gametes.

There are four types of gametes that will be produced by individuals of AABbcc genotype because there are two possible combinations for each gene, which when multiplied together gives us four different gametes.

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The word vulva, which meaning covering, is used to describe the outside of the female reproductive system. The vulva, which is situated between the legs, protects the access to the vagina and other internal reproductive organs.

The uterus, fallopian tubes, ovaries, and the vagina are a woman's internal reproductive organs.

The muscular, hollow tube known as the vagina connects the uterus to the vaginal opening. The muscular walls of the vagina allow it to expand and contract. The vagina can handle objects as narrow as a tampon and as broad as a newborn because to its flexibility. Mucous membranes line the muscle walls of the vagina, insulating and moistening it.

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Answer:

Genotype of woman - AO

Genotype of man - BO

Explanation:

O is recessive so if A or B is present, it will mask the O and the blood type will be either A or B

Answer:

process of moving molecules across a cellular membrane through the use of cellular energy

Explanation:

The part of the digestive system that starts the breakdown of proteins is the stomach.

The correct answer choice is "stomach"

The stomach is a muscular, hollow organ responsible for holding and mixing food with gastric juices. These gastric juices, primarily composed of hydrochloric acid and the enzyme pepsin, are secreted by the stomach lining.

Pepsin is crucial for initiating protein digestion, as it breaks down proteins into smaller polypeptides. This process allows for easier absorption in the small intestine, where further digestion and absorption of nutrients take place.

The esophagus, large intestine, and small intestine are involved in the digestion process as well, but they do not primarily contribute to the breakdown of proteins.

The esophagus transports food to the stomach, while the small intestine is mainly responsible for absorbing nutrients, including amino acids from broken-down proteins. The large intestine absorbs water and electrolytes, but it does not have a significant role in protein digestion.

Therefore, "stomach " is the correct choice.

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During the Miller-Urey Experiment, each of the atoms such as carbon (C), nitrogen (N), and oxygen(O) comes from water (H₂O), methane (CH₄), ammonia (NH₃), and hydrogen (H₂).

The Miller-Urey experiment is a famous experiment under simulated conditions that are thought at the time (1952) to be present in the atmosphere of the early, prebiotic Earth, in order to test the hypothesis of the chemical origin of life under the given set of conditions.

The experiment used water (H₂O), methane (CH₄), ammonia (NH₃), hydrogen (H₂), and an electric arc that contributed the atoms such as carbon (C), nitrogen (N), and oxygen (O).

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Motor proteins are responsible for the movement of cilia and flagella, which are made up of microtubules that are arranged in a 9+2 pattern around a central pair of microtubules called the axoneme.

Source of energy in motor proteins:

The motor proteins, dynein, and kinesin use ATP to move along the microtubules, causing the cilia and flagella to bend and generate movement. Muscle activity is also dependent upon motor proteins, specifically myosin, which uses ATP to generate force and move along actin filaments. Centrioles and the mitotic spindle are also involved in cell division and the formation of the spindle fibers, which are made up of microtubules and are responsible for separating the chromosomes during mitosis.

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Answer:

°Change in the Habitat

°Change in Climate

°Change in the structure of water sources

Increase in Pollution

°Change in temperature

Explanation:

Change in habitat is the change in the local environment conditions in which organisms lives. It may occur naturally or due to human actions. Though, it can affect food supply, migration patterns, stress, breeding cycles and diversity of wildlife population.

The percentage yield of this reaction is equal to 90.6%

To figure this out, we need to balance the equation. The balanced equation is: SiO2 + 3C → SiC + 2CO

These masses are found by adding up the mass of each element that makes up these compounds.

The formula is Percent yield = (actual yield ÷ theoretical yield) × 100%

Percent Yield = (29.2 g ÷ (0.8115 mol × 40.10 g/mol)) × 100%

Percent yield = 90.6%

Therefore, we can conclude that the percentage yield of the reaction is 90.6%

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Answer:

Phytoplankton use carbon dioxide and produce oxygen during photosynthesis; phytoplankton, fish, and seals use oxygen and produce carbon dioxide during respiration. Which can provide the most energy in an ecosystem

Explanation:

Carbon dioxide is a gaseous compound, which is used by plants, algae, and bacteria to perform photosynthesis. Phytoplanktons are the type of microscopic algae, which are the primary producers of marine ecosystems.

The increase in the level of carbon dioxide will result in the accelerated rate of photosynthesis and the yield of oxygen.

The higher amount of carbon dioxide will significantly lead to an increase in the population of phytoplankton.

Phytoplanktons are microscopic algae, which consume or absorb carbon dioxide to yield oxygen via photosynthesis.

The increased level of carbon dioxide will cause more phytoplankton to perform photosynthesis, which will eventually result in an increased population.

The phytoplankton is the primary producer, dependent on which the consumers will also be benefitted.

Therefore, the phytoplankton will be most benefitted from increased levels of carbon dioxide.

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The spinal cord is the part of the central nervous system that carries information from your senses to your brain and motor-control information to your body parts.

The spinal cord is part of the central nervous system, which is responsible for sending messages between the brain and the body. The spinal cord is a long, thin bundle of nerves that runs from the base of the brain down the back and is made up of grey matter and white matter. Grey matter is the part of the nervous system that contains the cell bodies of the neurons and white matter is the part of the nervous system that contains the axons of the neurons.

The spinal cord is protected by a thick layer of fatty tissue called the myelin sheath. This myelin sheath helps to insulate the neurons and also speeds up the electrical signals travelling between the brain and the body. The spinal cord carries information from the senses such as sight, smell, sound, taste and touch and motor-control information to the body. The motor-control information includes instructions from the brain to the body parts such as arms and legs to move. The spinal cord also carries information to and from the organs in the body, such as the heart, lungs and pancreas.

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Answer:

chemical reaction

Explanation:

When faced with a choice between an immediate pleasure and a greater pleasure later, the prefrontal cortex is the brain area that makes the greatest contribution to this process.

The prefrontal cortex is responsible for executive functions such as decision-making, planning, and self-control. It helps us weigh the pros and cons of a situation and make decisions that align with our long-term goals. In contrast, the medulla oblongata is responsible for regulating essential functions such as breathing and heart rate, while the occipital cortex is responsible for processing visual information, and the cerebellum is responsible for motor coordination and balance. Therefore, it is the prefrontal cortex that plays a critical role in making decisions that prioritize long-term satisfaction over short-term gratification.

Research has shown that individuals with stronger prefrontal cortex activity are better equipped to resist immediate temptations and make decisions that lead to greater future rewards.

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Answer:

Establishing reasonable grounds to identify and arrest suspects. Accurately recording and documenting the event in notes and reports.

Expljanation:

In the planning stage of an investigation, an investigator would first define and understand the scope of the investigation. The second step would be the establishment of a suitable investigation team, considering the required expertise, the nature of the investigation, and available resources.

An investigator considering the planning phase of an investigation might have to keep several factors in mind. The first step could be to define and understand the scope of the investigation. This involves deciding what the key questions are that need answering, setting boundaries for the investigation thereby preventing it from becoming overly broad and unmanageable.

The second step might involve the establishment of a suitable investigation team. This depends on the nature of the investigation, the available resources, and the expertise required. If any special skills or knowledge are needed for the investigation, it might be necessary to include people who possess these skills on the team.

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Solution:

The correct answer is:

The answer lies in the resistance to antibiotics that occurs with this bacterium. Indeed, Methicillin-resistant Staphylococcus aureus (MRSA) infection is caused by a type of staph bacteria that's become resistant to many of the antibiotics used to treat ordinary staph infections. This makes infections with this bacterium dangerous, as most antibiotics are given seem not to work in patients infected with this bacterium.

Answer:

Constante de resorte, k = 19.745 N/m

Explanation:

Dados los siguientes datos;

Masa, m = 2 kg

Periodo, T = 2 segundos

Para encontrar la constante del resorte, k;

\( Period, \; T = 2 \pi \sqrt {\frac {m}{k}} \)

Dónde;

Haciendo k el tema de la fórmula, tenemos;

\( k = \frac {(2 \pi )^{2}m}{T^{2}} \)

Sustituyendo en la fórmula, tenemos;

\( k = \frac {(2 * 3.142)^{2} * 2}{2^{2}} \)

\( k = \frac {6.284^{2} * 2}{4} \)

\( k = \frac {39.49 * 2}{4} \)

\( k = \frac {78.98}{4} \)

Constante de resorte, k = 19.745 N/m

To calculate the atoms of an element in a given molecule, we need to multiply stoichiometry by the number that is written on the foot of that element. Therefore, The balanced equation for photosynthesis reaction can be given as

CO\(_2\) + 6 H\(_2\) O → C \(_6\) H \(_{12}\)O \(_6\)+ 6 O \(_2\)

Balanced equation is the one in which the total number of atoms of a species on reactant side is equal to the total number of atoms on product side. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, displacement reaction.

The balanced equation for photosynthesis reaction can be given as

CO\(_2\) + 6 H\(_2\) O → C \(_6\) H \(_{12}\)O \(_6\)+ 6 O \(_2\)

Therefore, the balanced equation for photosynthesis reaction can be given as

CO\(_2\) + 6 H\(_2\) O → C \(_6\) H \(_{12}\)O \(_6\)+ 6 O \(_2\)

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