Synthesis of the Leading and Lagging Strands (BioFlix tutorial) Drag each phrase to the appropriate bin depending on whether it describes the synthesis of the leading strand, the synthesis of the lagging strand, o synthesis of both strands. View Available Hint(s) - made in segments- synthesized 5 to 3 - only one primer needed - daughter strand elongates toward replication fork - made continuously - daughter strand elongates away from replication fork - multiple primers needed leading strand lagging strand both strands

Seedless vascular plants are a diverse group of plants that reproduce through spores and have specialized vascular tissues for conducting water and nutrients throughout the plant body. Four correct statements about seedless vascular plants are:

1. They include ferns, horsetails, and clubmosses.
2. They evolved before seed-bearing plants.
3. They are typically found in moist environments.
4. They have alternating generations between a sporophyte and a gametophyte.

The exception to the correct statements about seedless vascular plants is that they reproduce through seeds. As the name implies, seedless vascular plants do not produce seeds and instead rely on spores for reproduction.

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Answer: positive sodium ions

Explanation:

This relates to the Action Potential which is what a nerve cell goes through when it needs to send information down the nerve cell to another cell and so on till it gets to the destination of the message.

The information is transmitted when the segments of the axon fire and when they do, positive sodium ions come in from outside the cell to the inside thereby making the inside positive. The previous segment would return to a resting potential when potassium ions which are negative, rush into the cell.

Given what we know about anatomy, we can confirm that atrial flutter is the option listed that may not be considered an arrhythmia.

Therefore, since the atrial flutter causes the heart to beat very fast, but maintains a regularity to it, we can confirm that this is not a type of arrhythmia given that an arrhythmia is classified as an irregular beating of the heart.

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Answer:

You can use rope as the red wire and different colored marble for the red ,yellow and green parts

And below each model you can what it is

Explanation:

Answer:

C

Explanation:

its written that every living thing is made of different objects

D. Target modification.

The method of resistance described in this scenario is target modification. The mutation in the 30S rRNA gene alters the target site for the antibiotic streptomycin, making it ineffective in inhibiting protein synthesis in the bacterium. This is a common mechanism of antibiotic resistance, where a change in the target site of an antibiotic makes it unable to bind and carry out its intended function. Other mechanisms of antibiotic resistance include antibiotic modification, efflux pumps, and altered metabolic pathways.

The method of resistance refers to the ability of microorganisms, such as bacteria, viruses, and fungi, to evolve and adapt in response to the use of antimicrobial agents, such as antibiotics, antivirals, and antifungals. This occurs through various mechanisms, such as mutations in genes encoding drug targets, acquisition of resistance genes through horizontal gene transfer, and overexpression of efflux pumps that pump out the drug from the cell. The method of resistance is a major concern in healthcare and agriculture, as it can lead to the emergence of multidrug-resistant strains of microorganisms that are difficult to treat or control. Strategies to combat the method of resistance include the development of new antimicrobial agents, the judicious use of existing agents, and the implementation of infection prevention and control measures.

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Answer: A. by preventing the production of mRNA molecules

Explanation:

In order to control gene expression through transcription, a cell can regulate the production of mRNA molecules. This control is achieved through various mechanisms:

1. Cells can produce transcription factors that bind to specific DNA sequences called promoter regions. These transcription factors can either enhance or inhibit the binding of RNA polymerase, the enzyme responsible for transcribing DNA into mRNA. By controlling the availability and activity of transcription factors, the cell can regulate the initiation of transcription and thus control which genes are expressed.

2. The DNA in the cell is packaged into a complex called chromatin, which consists of DNA wrapped around histone proteins. The cell can modify the structure of chromatin through processes such as DNA methylation and histone modifications. These modifications can either promote or inhibit the accessibility of DNA to transcriptional machinery, thereby influencing gene expression.

3. Cells can use small RNA molecules, such as microRNAs (miRNAs) and small interfering RNAs (siRNAs), to regulate gene expression at the transcriptional level. These small RNAs can bind to mRNA molecules and prevent their translation into proteins or promote their degradation, leading to reduced expression of the corresponding genes.

While options B, C, and D are involved in other stages of gene expression or protein synthesis, they are not directly related to controlling gene expression through transcription. Therefore, the most accurate answer is option A, by preventing the production of mRNA molecules.

Bone remodeling . The two-step process in which bone tissue is recycled is called bone remodeling.

The two-step process in which bone tissue is recycled is referred to as bone remodeling. Bone remodeling is a continuous process that involves the removal of old or damaged bone tissue (resorption) followed by the formation of new bone tissue (formation).

During the resorption phase, specialized cells called osteoclasts break down and remove existing bone tissue. Osteoclasts secrete enzymes and acids that dissolve the mineralized matrix of the bone, allowing the release of calcium and other minerals into the bloodstream.

After the resorption phase, the formation phase begins. Osteoblasts, another type of specialized bone cells, deposit new bone matrix composed of collagen fibers and minerals, such as calcium and phosphate. This newly formed bone tissue gradually replaces the resorbed bone and helps maintain the structural integrity and strength of the bone.

Bone remodeling is essential for various functions, including maintaining calcium homeostasis, repairing micro-damage or fractures, and adapting bone structure to mechanical stresses. It is influenced by various factors, such as hormones, mechanical forces, and nutritional status.

The two-step process in which bone tissue is recycled is called bone remodeling. It involves the sequential processes of bone resorption by osteoclasts and bone formation by osteoblasts. Bone remodeling is vital for maintaining bone health, repairing damage, and adapting bone structure to mechanical demands.

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According to the research, the correct option is alveoli, the grape-like out-pouchings located at the ends of the respiratory bronchioles are called alveoli.

They are the terminal diverticula of the bronchial tree, that is, they are the grape-like out-pouchings located at the ends of the bronchioles, in which gas exchange takes place between the air that was inhaled and the blood.

That is, these are similar to bags, where the body manages to get the oxygen it needs for its operation and through the same opening, the gases enter and leave the pulmonary alveoli.

Therefore, we can conclude that according to the research, the correct option is alveoli, the grape-like out-pouchings located at the ends of the respiratory bronchioles are called alveoli.

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If you purified mitochondria, you could add glucose, pyruvate, or long chain fatty acids to ATP production. Option C is the correct answer.

Mitochondria are the powerhouse of the cell and are responsible for producing ATP through cellular respiration. Glucose and pyruvate are both substrates that can enter the mitochondria and be used in the process of ATP production. Glucose can be broken down through glycolysis to produce pyruvate, which can then enter the mitochondria for further processing in the citric acid cycle.

Additionally, long chain fatty acids can also be used as a fuel source for ATP production within the mitochondria through fatty acid oxidation. Therefore, adding any of these substrates to purified mitochondria can contribute to ATP production.

Option C is the correct answer.

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Answer:

false the earth poles at north and south are broad and the sides are round so , Earth is called oblate spheroid. So answer is false

Answer:

It's answer is False :)

Explanation:

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Answer:a).

Explanation:

Answer:counting rings on a tree stump to determine its age

Explanation:

We can predict that approximately 3166 species would occur in the entire 1000-hectare reserve based on the provided data and the species-area relationship.

To predict the number of species that would occur in the entire 1000-hectare reserve, we can use the species-area relationship and the values of c and z provided. The species-area relationship is typically modeled using a power law equation of the form:

\(S = cA^z\)

where S represents the number of species, A represents the area, c is a constant, and z is the slope of the relationship.

In this case, we have log(c) = 0.699 and z = 0.608.

To find the value of c, we need to take the antilog (base 10 exponentiation) of log(c). Therefore:

\(c = 10^{(log(c))\)

\(c = 10^{(0.699)\)

c = 4.997

Now we can use the equation \(S = cA^z\) to calculate the number of species for the entire 1000-hectare reserve. Substitute A = 1000 into the equation:

\(S = 4.997 * 1000^{0.608\)

S = 4.997 * 633.939

S = 3166.40

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Answer:

A scientific theory is a broad explanation for events that is widely accepted as true. To become a theory, a hypothesis must be tested over and over again, and it must be supported by a great deal of evidence. People commonly use the word theory to describe a guess about how or why something happens.

Explanation:

In order to count differential white blood cells, only one blood smear is required.

What is a differential white blood cell count? A differential white blood cell count, also known as a "diff," measures the number of each type of white blood cell in your blood. A diff assists in determining if there is an infection or inflammatory condition in your body, as well as providing insight into other medical concerns.

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Answer:

140 km per hour.

Explanation:

350 divided by 2.5= 140

The average speed of the train was 140 kilometers per hour.

Speed ​​is a unit used to describe how fast something is moving with respect to another object. Due to its scalar nature, it has only magnitude and no direction. By dividing the distance traveled by an object by the time required to cover that distance, one can calculate its speed.

The formula for calculating speed is as follows:

Speed = Distance / Time

In the International System of Units (SI), the meter per second (m/s) is the accepted unit for measuring speed. Nevertheless, other common units for speed include kilometers per hour (km/h) and miles per hour (mph), depending on the situation and location.

We can use the following calculation to determine the typical speed of a train:

Average speed = Distance traveled / Time taken

In this example, the train covered this distance of 350 km in 2.5 hours.

Average speed = 350 km / 2.5 hours

Average speed = 140 km/h

Therefore, the average speed of the train was 140 kilometers per hour.

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Answer:

True, this is because they are used to keep balance and hold your own body weight, your wrist and hand shouldn't, that is why your arms and legs are for lifting heavy stuff. So that is why your tarsus and foot are stronger.

Answer: True

Explanation: OWare ;)

Answer:

Fermentation

Explanation:

Yeast is fungi and do alchohalic fermentation

Mass movements in the colon are stimulated by the presence of food/chyme in the stomach/ duodenum. Hence only the first and second choices are correct.

The large intestine is divided into the colon and rectum, and it exhibits three different types of movements: regular irregular contractions, rhythmic ascending (antiperistaltic) waves of contraction originating at the end of the large bowel, and rhythmic longitudinal contractions in the colon and rectum. The first two patterns are in situ in the big bowel, making them seem more developed.

The final one was exclusive to older preparations and so seemed abnormal. The colon is often dormant when there is a gap between meals. The so-called gastrocolic and duodenocolic reflexes, a manifestation of enteric nervous system regulation, cause intestinal motility to considerably increase after eating as a result of signals transmitted by the enteric nervous system.

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Colony C showed a decrease in size every two weeks after the initial treatment with pesticide. Colony A showed an increase in size, and colony B showed no significant change.

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Bones are very much alive, as they grow, repair, and produce essential blood cells for our bodies. These functions demonstrate that bones are not just static, dead structures, but rather vital components of our living bodies.

I understand why people might associate bones with graveyards and Halloween, but bones are actually living, dynamic structures in our bodies. To help change your kid sister's mind, consider these points:

1. Growth: Bones grow throughout childhood and adolescence, which shows that they are alive. The process called ossification allows bones to lengthen and widen, contributing to our overall growth.

2. Repair: When bones are damaged or fractured, they have the ability to repair themselves. This healing process involves cells called osteoblasts and osteoclasts, which rebuild and reshape the bone, indicating that bones are not dead structures.

3. Production: Bones are also responsible for producing blood cells in our bodies. This process, called hematopoiesis, occurs in the bone marrow, which is a soft, living tissue within bones.

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G.F. Gause's classic series of experiments in the 1930s demonstrated the principle of competitive exclusion, which states that no two species can occupy the same niche. The experiments involved growing two species of Paramecium (microscopic single-celled organisms) in a culture medium containing the same limited resources. One species, P. aurelia, had a higher growth rate than the other, P. caudatum, in the absence of competition.

When the two species were grown together in the same culture medium, P. aurelia outcompeted P. caudatum, causing the latter to decline in population and eventually become extinct. Gause observed that the two species had a high degree of niche overlap, as they both fed on the same bacteria in the culture medium.This experiment demonstrates competitive exclusion because the two species were unable to coexist in the same environment, even though they were both capable of surviving in the absence of the other. The species with a more rapid growth rate (P. aurelia) was able to outcompete the other for the limited resources, and as a result, the less competitive species (P. caudatum) was excluded from the niche.This outcome supports the principle of competitive exclusion, which suggests that when two species have similar ecological requirements and compete for the same resources, one will inevitably outcompete the other, leading to the exclusion of the less competitive species. The experiment also highlights the importance of niche differentiation as a mechanism for coexistence between species, where species that have different ecological requirements can share the same habitat without competing directly for resources.

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Answer:

dna

Explanation:

DNA replication is one of the most basic processes that occurs within a cell. Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, as the parent cell. To accomplish this, each strand of existing DNA acts as a template for replication.

To determine whether the curl allele is dominant or recessive, we can perform a cross between individuals that are homozygous dominant for the straight allele (SS) and individuals that are homozygous recessive for the curl allele (cc).

If the curl allele is dominant, then all the offspring of the cross would have curly hair, as they would inherit one copy of the curl allele from the curly-haired parent and one copy of the dominant straight allele from the straight-haired parent. If the curl allele is recessive, then all the offspring would have straight hair, as they would inherit a straight allele from each parent.

To confirm the dominance or recessiveness of the curl allele, we would need to perform additional crosses with heterozygous individuals. If the curl allele is dominant, then approximately 50% of the offspring from the cross between a heterozygous and homozygous recessive individual would have curly hair.

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Explanation:

The colour which we see when we close our eyes is called Eigengrau which is different from black. It happens due to a phosphene that allows us to block the natural light and get into a dark colour called Eigengrau 

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Answer:

Black

Explanation:

is this correct?

Answer: most definitely false

Explanation:most definitely false

Answer:

a chaeta runs fast to catch its pray Please Mark Me Brainliest

Explanation:

The adaptation that allows some of these animals to run fast would be an example of natural selection if it helps them hunting animals that ran faster than them and need for survival.

The action of natural selection consists of selecting individuals more adapted to a given ecological condition, eliminating those disadvantageous for that same condition. The most adapted expression refers to the greater probability that a given individual will survive and leave offspring in a given environment.

Natural selection occurs due to the need for survival and adaptation of species to the environment. It is through it that the most adapted species persist in the environment.

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i think the answer should be asymptomatic