Which evidence best supports is the theory that organisms, such as whales , have common ancestry and have evolved ? Select all that apply

Answer:

no

Explanation:

i requires some form of ATP

Answer:

b. n kkhghiuttyytrftghjiutew

Answer:  The answer is semipermeable

Explanation:

One cell, which performs all of the processes required by the organism, makes up a unicellular organism.

The correct option is (a) performs all of the function

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Cells can increase their surface area by folding the plasma membrane. Total cell surface area should increase when a cell divides into two daughter cells.

There are two illustration of membrane supply that support cell division:

(1) unfolding of small surface membrane reservoirs such as microvilli and folds, and (2) exocytosis of intracellular vesicles.

As the cell radius increases, the surface area increases as the radius squared, but the volume increases as the radius cubed (much faster).

Increasing the surface area of ​​the cell increases the amount of material that diffuses into the cell. As volume and surface area increase, volume increases more rapidly, so for every doubling of cell volume, the surface area available for uptake is halved.

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The solution which is hypotonic is referred to as 0.85% normal saline and is denoted as option C.

This is referred to as a type of solution which has a lower amount of solutes when compared to other solution and also has a lower osmotic pressure than another solution when comparison is done.

On thew other hand, hypertonic solution has a higher amount of solutes when compared to other solution and an example is 10% saline which means Sodium chloride is more abundant in the solution.

Examples of hypotonic solution include 0.85% normal saline while isotonic solution has same or equal concentration and examples include iodine,distilled water etc which is therefore the reason why option C was chosen as the correct option.

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Answer: A

Explanation: I feel as if it could be all of them except C

In a superheterodyne receiver, the selected RF signal is converted to IF signal before demodulation. This conversion process is necessary to make the demodulation process simpler and more effective. The conversion process also helps in increasing the receiver’s selectivity and sensitivity.

The superheterodyne receiver is the most commonly used type of receiver in modern radio receivers. The conversion process is done by using a local oscillator. The local oscillator frequency is usually set to a value that is higher than the incoming RF frequency. The difference between the local oscillator frequency and the incoming RF frequency is called the intermediate frequency (IF).The conversion process is necessary for the following reasons:

1. Improved selectivityThe conversion process makes it possible to use a high-Q filter at the IF. This makes the receiver more selective and helps to eliminate unwanted signals that may be present at the RF frequency.

2. Improved sensitivityThe conversion process helps to improve the sensitivity of the receiver. This is because the IF can be amplified more easily than the RF signal. This allows for the use of high-gain amplifiers, which results in improved sensitivity.

3. Simplification of the demodulation processThe demodulation process is made simpler and more effective by converting the RF signal to an IF signal.

This is because the IF signal is usually at a lower frequency and therefore easier to demodulate. The demodulator circuitry is also simpler because it only needs to operate at the IF frequency, rather than the higher RF frequency.In conclusion, the conversion of the RF signal to an IF signal is necessary in a superheterodyne receiver to improve selectivity, sensitivity, and to simplify the demodulation process.

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The osmotic pressure at 25 °c of red blood cells across the cell membrane from pure water is 7.34atm

What is osmotic pressure?

Osmotic pressure is defined as the pressure that must be applied to the solution side to stop fluid movement when a semipermeable membrane separates a solution from pure water.

What would happen if red blood cells were placed in seawater?

Seawater is hypertonic to the cytoplasm in vertebrate cells and in plant cells. If a red blood cell and a plant cell were placed in seawater, the red blood cell would burst, and the plant cell would shrink.

What is the solute concentration of red blood cells?

Red blood cells have a solute concentration of around 0.9%.

Thus, the osmotic pressure of red blood cells is 7.34atm

Given: Concentration of Red blood cell C=0.30M, R=0.0821, T=298k

Osmotic pressure =CRT

Osmotic pressure=0.3 × 0.0821 × 298

Osmotic pressure =7.33979 ≃ 7.34atm

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the salmon population would not change

The DNA fragments produced by the PCR reaction will be 74 base pairs long.


1. The PCR primers recognize the DNA immediately adjacent to the STR region, which means they will bind to the DNA on both sides of the repeat sequence.
2. Each primer is 10 nucleotides long, so when they bind to the DNA, they will cover a total of 20 nucleotides (10 nucleotides on each side of the STR region).
3. Since the STR region contains six repeats of a 4-nucleotide sequence, the total length of the STR region is 6 repeats * 4 nucleotides/repeat = 24 nucleotides.
4. When the PCR primers bind to the DNA adjacent to the STR region, they will cover 20 nucleotides, and the STR region itself is 24 nucleotides long.
5. Therefore, the total length of the DNA fragment produced by the PCR reaction will be 20 nucleotides (covered by the primers) + 24 nucleotides (STR region) = 44 nucleotides.
6. Each base pair is made up of two nucleotides, so the final length of the DNA fragment produced by the PCR reaction will be 44 nucleotides * 2 = 88 base pairs.

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Answer:

The term that describes the relationship in which one organism lives inside the other one is endosymbiosis.

Explanation:

Answer:

Two groups of proteins, called cyclins and cyclin-dependent kinases (Cdks), are responsible for the progress of the cell through the various checkpoints. ... Cyclins regulate the cell cycle only when they are tightly bound to Cdks.The cell cycle is controlled by a number of protein-controlled feedback processes. Two types of proteins involved in the control of the cell cycle are kinases and cyclins. Cyclins activate kinases by binding to them, specifically they activate cyclin-dependent kinases (CDK).

Explanation:

hey mate i hope it will help you.....!

Answer:

Cyclins

Explanation:

Cyclins regulate the cell cycle only when they are tightly bound to Cdks.

Answer:

The chemical radiant or sound energy. If thats the way I should answer this question.

Answer:

Introns are crucial because the protein repertoire or variety is greatly enhanced by alternative splicing in which introns take partly important roles. Alternative splicing is a controlled molecular mechanism producing multiple variant proteins from a single gene in a eukaryotic cell.

Explanation:

During glycolysis, one glucose molecule produces a total of four ATP molecules. Since the first stage of glycolysis uses up 2 ATP molecules, there is a net gain of 2 ATP molecules.

The glycolysis process uses two ATP molecules. When glucose is transformed to glucose-6-phosphate, one ATP molecule is used, and when fructose-6-phosphate is changed to fructose-1,6-bisphosphate, the other ATP molecule is used. So, during glycolysis, there is a net gain of 2 ATP molecules.

In the metabolic route known as glycolysis, glucose molecules are broken down to release energy. This energy is then used by the cell to produce ATP, which is the currency of life, from ADP and phosphate.

This information demonstrates that the glycolysis metabolic pathway is a well-known chemical reaction that produces ATP by dissolving glucose molecules rather than simple carbohydrates.

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Answer:

The 200kg

Explanation:

Because 400kg is more weight and the 200kg would be much easier to push

Answer:

In Euclidean geometry: Congruence of triangles. … first such theorem is the side-angle-side (SAS) theorem: If two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, the triangles are congruent.

Explanation:

Answer: b. A compound is a pure substance because its molecule cannot be broken down into simpler particles by physical means.

Answer:

b

Explanation:

Glucose is broken down apart, then the energy gained is transferred to the energy molecules is correctly described the  step involved in cellular respiration, hence options 1- A, 2- C, 3- A, 4- C, 5- false, 6- D are correct.

The process of cellular respiration involves the oxidation of biological fuels in the presence of an inorganic electron acceptor, such as oxygen, to produce large amounts of adenosine triphosphate, which is an energy containing compound.

The location of the cellular respiration is mitochondria. Cellular respiration occurs in both plant and animal cells.

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Demetrius's results suggest that digestive enzymes are crucial to maintaining homeostasis in the body by breaking down large molecules of food into smaller, more easily absorbed molecules.

Digestive enzymes are produced by different organs of the digestive system such as the salivary glands, stomach, pancreas and small intestine. These enzymes work together to break down food into smaller molecules that can be absorbed and utilized by the body's cells.

Homeostasis is the maintenance of a stable internal environment in the body. The body needs to maintain the correct balance of nutrients, electrolytes, and other substances in order to function properly. Digestive enzymes are essential for maintaining this balance by breaking down food into the correct molecules that can be used by the body.

Moreover, Digestive enzymes also play a key role in the regulation of blood sugar levels, by breaking down carbohydrates into glucose, which can be used as an energy source by the body, preventing fluctuations in blood sugar levels and avoiding conditions such as diabetes.

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The proteins that are not made on the membrane-bound ribosomes of the RER are proteins of the extracellular matrix (Option D).

The endoplasmic reticulum is a network of intracellular membranes involved in protein and lipid metabolism, calcium storage, and drug detoxification. The endoplasmic reticulum may be divided into the rough endoplasmic reticulum (RER), which is studded with ribosomes, and the smooth endoplasmic reticulum (SER), which is not studded with ribosomes.

The rough endoplasmic reticulum (RER) synthesizes proteins that will be transported out of the cell or to the plasma membrane, whereas the smooth endoplasmic reticulum (SER) synthesizes lipids and phospholipids that will be utilized by the cell or incorporated into the plasma membrane. The SER also contains enzymes that assist with the detoxification of certain medications and poisons.

Thus, the correct option is D.

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Answer:

Hello Queen Messy here!

Glycolysis in Respiration

Cells use oxygen to assist in cellular respiration. This type of respiration, called aerobic cellular respiration, converts stored energy into a usable form, chiefly by reacting glucose and oxygen through an intermediate. The first stage of aerobic cellular respiration, glycolysis, can be performed without oxygen. However, if oxygen is not present, cellular respiration cannot continue past this stage.

In glycolysis, glucose is converted to a carbon-based molecule called pyruvate. Two molecules of adenosinse tri-phosphate (ATP), a nucleotide that provides energy to cells, are generated during this process.

Explanation:

Answer:

to break chemical bonds

Explanation:

The blood transports the sugars to the cells, where the mitochondria break up their chemical bonds to release the energy they contain. Cells need oxygen to be able to carry out that process. As every cell in our body needs energy, every one of them needs oxygen. When the cell uses oxygen to break down sugar, oxygen is used, carbon dioxide is produced, and energy is released.

Answer:

as the number of species present increases, the immigration rate decreases

Explanation:

According to ETIB, the number of species present on an island is determined by a balance between immigration and extinction. Generally, as the number of species present increases, the immigration rate decreases and the extinction rate increases.

A successful immigration rate impact the biodiversity of an island in several ways.

By the studies of several scientists, the number of species present on an island is determined by a balance between immigration rate and extinction rate. Generally, as the number of species present increases, the immigration rate increases and the extinction rate decreases. Therefore a successful immigration rate provides the animals and birds to migrate from different parts of the world and settle down in a particular island. Therefore for a greater amount of immigration rate, the biodiversity of the island is maintained in a good order. Therefore for a good immigration rate, the biodiversity of a land is largely increased.

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Misconception: Weather and climate are the same thing. Correction: Climate and weather are not the same entity. When we talk about weather, we mean the atmospheric circumstances, like temperature and humidity.

Contrary to weather, which depicts the conditions of the atmosphere over a shorter time, climate refers to how the atmosphere "behaves" over relatively long periods of time. Changes in the long-term averages of everyday weather are what we refer to when we discuss climate change.

Weather refers to the daily details of the atmospheric changes in a specific location at a particular moment. Climate is the scientific data of the typical weather in a particular area over a period of more than 30 years. 2.

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