Cystic fibrosis is a lethal, autosomal recessive genetic disorder. Which statement BEST explains how cystic fibrosis is maintained in the gene pool? A Organisms that are heterozygous can pass on only the dominant allele. B Organisms that are homozygous-dominant pass on either dominant or recessive alleles. C Organisms that are heterozygous can pass on either dominant or recessive alleles. D Organisms that are homozygous-recessive pass on only the dominant allele.

the answer for this question is false.

The Venus flytrap is a species of plant. It naturally occurs in areas such as bogs and marshes with very little nutrients such as nitrogen. As such, it has evolved to capture prey such as insects, spiders, and other invertebrate and small vertebrates to digest, allowing it to gain nutrients from its food. Hope this helped!

on the surface of leaves.

Answer: On the surface of leaves

(:

Warm temperate climates are classified as a climate region with distinctive summer and winter seasons. This kind of climate help in maintaining constant body temperature.

Biological diversity (biodiversity) refers to the diversity of life throughout all levels of biological organization, including not only the total number of life forms found in a given region but also the scope of variations among those forms.

Biodiversity encompasses everything from genetic variation within a single simple population to the diversity of ecosystems throughout the world.

Scientists believed the warm climates provide greater biodiversity because there is an abundant amount of rainfall seasonally in the warm climatic region to increase crop productivity which in turn results in greater Biodiversity.

Also, in the warm-climate region, species are exposed to greater genetic diversity, this makes the species to be adapted to various conditions such as resistance to climate change, therefore increasing Biodiversity.

In conclusion, from the above explanation, we now have a clear understanding on how warm climates improve biodiversity.

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Final answer:

Option B illustrates natural selection, where rabbits with a heritable trait - longer, thicker fur - survive an exceptionally cold winter better than rabbits without this mutation, leading to a genetic shift in the population.

Explanation:

The example of natural selection provided in the student's options is B. rabbits with a mutation for longer, thicker fur survive an unusually cold winter, while many normal rabbits do not survive. This situation illustrates natural selection because it demonstrates an environmental pressure - the unusually cold winter - which leads to differential survival based on a heritable trait - the longer, thicker fur. As a result, rabbits with the mutation are more likely to survive and reproduce, passing on the gene for thicker fur to the next generation, thereby changing the genetic make-up of the rabbit population over time.

B would be your answer, let me know your scores.

Answer:

B. 3

Explanation:

The Cartesian plane consists of two perpendicular lines called x-axis and y-axis which, together with the intersection point (the origin), define a two-dimensional coordinate system that makes it possible to specify the location of points in the plane. Following this same line of reasoning, to describe the location of a point in space we need to introduce a third dimension into the two-dimensional system. For this, from the Cartesian plane, we define a z axis (perpendicular to both axes) passing through the origin which, together with the x axis and y axis will constitute our three-dimensional coordinate system.

Accordingly we can say that two perpendicular lines can represent a three-dimensional coordinate system.

It could be number #3

Answer:

The correct statement is option 4, that is, the 160-pound person burns about twice as many calories jogging as she does walking.

Explanation:

The statement 1st is not correct as one can observe from the graph that the 200-pound individual burns more calories in an hour by doing jogging and playing basketball than performing aerobics.  

The 2nd statement is also not correct as one can see that the 160-pound individual burns more than 50 calories per mile while doing jogging. The statement 3rd is also not correct as when a 200-pound individual plays volleyball for three hours then about 1000 calories will get burned, as in 1 hour of playing 350 calories are burned.  

The last statement, that is, the fourth one is correct as one can see from the graph that a 160-pound individual burns approximately 600 calories by doing jogging and she burns 300 calories while walking.  

Living cells can exist on themselves, like bacteria  or part of an larger organism.

Viruses are smaller than the cell and need a living host  to reproduce.

A tornado is potentially so destructive due to its high wind speeds and ability to cause significant damage to structures and landscapes.

- High wind speeds: Tornadoes are characterized by extremely high wind speeds, often exceeding 200 miles per hour (320 kilometers per hour), which can wreak havoc on anything in their path.

- Structural damage: Tornadoes can easily tear apart buildings, homes, and other structures, leading to extensive property damage and posing a significant risk to human life.

- Projectile debris: Tornadoes can hurl debris at high velocities, turning everyday objects into deadly projectiles that can cause further destruction and injury.

- Large size and reach: Some tornadoes can be several miles wide and travel long distances, covering vast areas and affecting numerous communities along their path.

- Unpredictability: Tornadoes can form rapidly and change direction unpredictably, making it difficult for residents to prepare or evacuate in time, increasing the potential for destruction and loss of life.

- Overall, the combination of high wind speeds, structural damage, projectile debris, large size, and unpredictability makes tornadoes incredibly destructive natural phenomena that can have devastating consequences for affected areas.

The complete Question is given below:

Why is then a tornado potentially so destructive? explain ?

Translation involves the synthesis of proteins and occurs in ribosomes outside the nucleus, guided by the genetic code. Translation is the process of protein synthesis where proteins are made at ribosomes based on the information in mRNA. This involves assembling amino acids in the correct sequence as directed by mRNA codons, with the help of tRNA molecules.

Translation involves the synthesis of proteins and occurs in the ribosomes. This process is one of the two main stages of protein synthesis, the other being transcription. During translation, the sequence of bases in messenger RNA (mRNA) is decoded to build a polypeptide, or protein, using a genetic code that dictates the sequence of amino acids in the protein. The ribosomes, where translation occurs, are complexes made up of rRNA and proteins located outside the cell nucleus.

Translation occurs in three phases: initiation, where the ribosome assembles around the mRNA; elongation, where amino acids are added sequentially to the growing polypeptide chain; and termination, where the completed polypeptide is released. Each amino acid is brought to the ribosome by a transfer RNA (tRNA) molecule that has an anticodon sequence to pair with the mRNA codon, ensuring that the correct amino acids are incorporated into the protein.

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Mother: Dominate trait is black hair, Recessive trait is short.

Father: Dominate trait is tall, Recessive trait is red hair.

Child has all traits, but only the dominate traits show through.

As you observe in the image, both 02 and CO2 enters the plant and both are utilized by the plants as well in the process of respiration and photosynthesis respectively. Look at the reaction:

During Respiration O2 is utilized and CO2 is liberated out by the plant:        

oxygen + glucose -> carbon dioxide + water + heat energy

During Photosynthesis CO2 is utilized and O2 is released:    

carbon dioxide + water+ light energy -> oxygen + glucose

During photosynthesis, plants create their own food (glucose) whereas during respiration, plants consume glucose and convert it into energy which fuels the plants cellular activities.

The Answer Fam Is

Plants require carbon dioxide for photosynthesis and produce oxygen as a byproduct. They then use the oxygen released in cellular respiration, producing carbon dioxide as a byproduct.

The best answer would be:

1. Private goods

2. Public goods

Private goods are scarce, or in other words very limited. These are goods that are owned by an individual that is obtained in exchange of money. Now this limits the ability of another to consume it. Private goods are categorized as excludable and rivalrous.

Because it is limited, not anyone can get it, thus creating competition.

Public goods are the opposite. Anyone can use it and anyone can obtain it. For example, air, public defense, streetlights. All these things are obtainable and even when one will consume, there is more for others to make use of.

I hope this did not confuse you more. Good luck!

Answer:

Public good

Explanation:

Public good is a property belonging to some Estat, financed by public money. The main characteristic of public goods is that they do not establish rivalry and exclude no one. This means that it is impossible for a public good user to exclude other users from benefiting from the good.  It also means that when a person uses the good, he does not prevent others from using it as well.

The trade winds in the tropical zones are persistent, east-to-west winds influenced by the subtropical highs and the Coriolis effect. They converge at the Intertropical Convergence Zone (ITCZ), leading to wet conditions and the potential for tropical storms, and also contribute to oceanic upwelling. Additionally, outside of the tropical zones, westerly wind patterns known as the westerlies occur between latitudes 30° to 60°.

The zones near the equator where winds move predominantly from east to west are influenced by the trade winds. These trade winds are a component of the Earth's atmospheric circulation system and are moderate but persistent throughout the year. They mainly occur over the oceans and are particularly relevant in the tropical zones, pushing air towards the equator from the northeast in the northern hemisphere and from the southeast in the southern hemisphere.

Trade winds are steered by the subtropical highs and the Coriolis effect, which causes them to bend slightly to the right in the northern hemisphere and to the left in the southern hemisphere. When these winds converge near the equator, they form the Intertropical Convergence Zone (ITCZ), characterized by calm and wet conditions, which can give rise to tropical storms. These persistent east-to-west winds also facilitate oceanic upwelling and the transport of cold water across the Pacific Ocean.

Lastly, on the poleward side of the subtropical highs, the airflow contributes to the creation of westerly wind patterns, known as the westerlies, between the latitudes of 30° and 60° both in the northern and southern hemispheres. These dynamic air movements and their resulting climates play a crucial role in weather patterns around the globe, especially in the tropics and subtropics.

newtons first law : an object (example a car) at rest will remain at rest and an object in motion will stay in motion until acted upon by an unbalanced force.

newtons second law : force ( if the car has an increase in mass, you must increase force to have the same resulting acceleration).  

Newton's laws of motion explains the magnitude and direction of the forces acting on the car in a car crash.

Newton's law of motion describes the motion of objects.

There are three Newton's laws of motion.

The second and third laws of motions can be used applied in a car crash.

In a car crash, the cars receive an equal but oppositely acting reactionary force to the force they apply.

Also, in a car crash, the object hit by a car accelerates the object that it crashes on.

Therefore, in a car crash, Newton's law of motion explains the magnitude and direction of the forces acting on the car.

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Organisms that obtain enegy from the food they consume is called a heterotroph or consumer

Prokaryotic and eukaryotic cells differ in various ways, including the presence of a true nucleus and membrane-bound organelles in eukaryotic cells.

The structure of prokaryotic and eukaryotic cells differ in various ways. While both types of cells have a plasma membrane, cytoplasm, genetic material, and ribosomes, eukaryotic cells are typically larger and more complex. Eukaryotic cells have a true nucleus, membrane-bound organelles, and multiple chromosomes, whereas prokaryotic cells lack a nucleus and membrane-bound organelles and generally have a single, circular chromosome.

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The silent crickets survived because they weren't located by the Ormia ochracea flies. When these silent crickets reproduced, the 'silent' trait was passed on to the offspring. Over time, the cricket population rebounded, but with crickets that were silent due to this evolved defense mechanism against the lethal parasites.

The best explanation for the revival of the silent cricket population relates to evolutionary adaptation and behavioral changes brought on due to parasite infestation. The silent male crickets likely survived the parasite infestation because, not producing any sound, they were not detected and targeted by the Ormia ochracea flies whose maggot offspring are deadly for the crickets. Essentially, the flies were unable to locate the silent crickets.

These silent males reproduced with available females, passing on the 'silent' trait. Over time, the cricket population rebounded, but these new generation of crickets had evolved to be silent as a defense mechanism against the fly parasites. This demonstrates a clear case of natural selection, where the trait providing a survival advantage in a given environment increases in frequency within a population over successive generations.

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Adaptation through natural selection led to the rebound of the cricket population in 2003. Silent crickets, less noticeable to the deadly flies, survived better and passed on more of their genes, resulting in a predominantly 'silent' cricket population.

The best explanation for the rebound of the cricket population by 2003 is the concept of adaptation due to natural selection. Cognizant of the dire threat presented by the maggots released by flies, some of the crickets likely underwent mutation that silenced their chirps, which renders them less noticeable to the flies. These silent crickets could survive better, reproduce more, and pass on more of their genes, including potentially the gene causing silence, to the next generation. This process of natural selection would eventually lead to a predominantly 'silent' cricket population. Elaboration The rebound in the cricket population aligns with how species adapt to predation pressures. If a species is strongly preyed upon, individuals with traits that make them less likely to be killed by predators will pass on their genes more frequently, leading to a population change.

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In vertebrates, motor neurons release acetylcholine (ACh), a small molecule neurotransmitter, which diffuses across the synaptic cleft and binds to nicotinic acetylcholine receptors (nAChRs) on the cell membrane of the muscle fiber, also known as the sarcolemma.

Acetylcholine (ACh) is the neurotransmitter that is released at motor end plates by the axon terminals, triggering a series of reactions that lead to muscle contraction.

The neurotransmitter released at motor end plates by the axon terminals is acetylcholine (ACh). This release is triggered when an action potential travels down the motor neuron's axon, leading to the opening of voltage-gated calcium channels. As calcium ions enter the synaptic terminal, they facilitate the fusion of neurotransmitter-filled vesicles with the presynaptic membrane, permitting the release of ACh into the synaptic cleft.

Upon release, ACh diffuses across the synaptic cleft and binds to ACh receptors on the motor end plate. The binding of ACh to these receptors causes ion channels to open, allowing sodium ions to enter the muscle cell and initiating an end-plate potential. This depolarization then triggers an action potential that propagates along the sarcolemma, leading to muscle contraction.

its the right anwsers

In the first stage of sexual reproduction, "meiosis", the number of chromosomes is reduced from a diploid number (2n) to a haploid number (n). During "fertilization", haploid gametes come together to form a diploid zygote and the original number of chromosomes is restored.

Meiosis is the answer

Genetic recombination includes crossing-over during prophase I, random chromosome alignment in metaphase I, and fertilization, where gametes fuse to form uniquely genetic offspring. Crossing-over is the exchange of genetic material between non-sister chromatids.

The types of genetic recombination include:

During prophase I, homologous chromosomes pair up and exchange segments of genetic material through crossing-over, leading to new combinations of genes on each chromosome. This exchange of genetic material between non-sister chromatids of homologous chromosomes creates unique gene combinations and contributes to the genetic diversity of offspring.

In metaphase I, the random alignment of recombined chromosomes on the metaphase plate generates additional genetic variation.

Finally, after meiosis, the process of fertilization combines the diverse gametes to produce genetically unique offspring.

The European international system collapsed, with the Second World War, and the results of that war led to radical transformations in the form of the distribution of power at the global level. The European countries, "the poles of the old regime, the Axis and the Allied Powers" emerged from the Second World War exhausted, economically, militarily and politically. , And then fell positions in the ladder hierarchy of international forces, while emerged two new global poles, the United States of America and the Soviet Union, and in the new situation are only able to determine the image of the entire international system, with their own capabilities. Thus, the international pattern shifted to its image, which became known as the bipolar international order. .

The sectarian strife between the two poles has had a profound effect on deepening the differences between them, and in the emergence of a new variable that has played a prominent role in the international struggle, the ideological factor. This sectarian dispute has divided the developed world into two main blocs: the Western "capitalist" bloc, The United States of America, the West European countries, Canada and Japan, and the communist bloc, led by the Soviet Union and by the Eastern European countries. These are both the NATO and the Warsaw Pact.

Both poles in their struggle with the other on the land of the Third World resort to indirect means, in order to avoid direct armed contact between them. Examples include diplomacy and economic propaganda, alliances, pro-government regimes, and the overthrow of hostile regimes. All this has resulted in the so-called Cold War.

This concept was first used by Prince Juan Manuel in the fourteenth century and then by the American economist Bernard Baruch "1870-1965" in early 1947 and became a common expression with the American journalist Walter Lippman (1889-1974) In general, the state of tension between the western and eastern blocs formed in 1945 was described in the wake of World War II.

This conflict has spread since the end of the Second World War, from the mid-1940s to the end of the 1980s. The collapse of the Soviet Union in 1991 can be seen as the end of the Cold War, although many of the ideological bases of this war had disappeared before.

Answer:

D. lack of trust between the United States and the Soviet Union

Explanation:

I just did it open ape.x its correct

ANSWER CHOICES

A. aggressive British behavior in Europe

B. aggressive Soviet behavior in the Middle East

C. U.S. nuclear power

D. lack of trust between the United States and the Soviet Union

Add starch indicator solution to the water in the beaker. If the indicator solution changes color than starch is present.

An iodine indicator can be used to test whether starch has diffused through a membrane into a beaker by reacting with starch present to produce a blue-black color. However, starch molecules are generally too large to pass through the membrane. The iodine molecules, which are smaller, can do so and react with any starch within the bag.

One can use an indicator such as iodine to test whether starch has diffused through the membrane into the beaker. Iodine reacts with starch to produce a blue-black color, serving as a clear visual indicator of the presence of starch. If the beaker's solution turns blue-black after adding iodine, this would suggest that starch has indeed diffused through the membrane.

However, you must remember that the dialysis tubing simulates a semi-permeable membrane, and larger molecules like starch often cannot pass through. The iodine, on the other hand, being a smaller molecule, can pass through the membrane and react with any starch present inside the bag to give the blue-black color.

To interpret the results, if the surrounding water in the beaker turns blue-black upon adding iodine, it can be inferred that starch has diffused out of the membrane, though unlikely. But if the color change is only observable within the dialysis bag, the starch did not pass through the membrane and has instead reacted with iodine that diffused into the bag.

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Answer:

The correct answer is D. The population steadily increased to get closer to carrying capacity.

Explanation:

Carrying capacity is the maximum capacity of an environment to support a population of species. Carrying capacity denotes the highest population size of a species in an environment and population beyond this carrying capacity cannot be supported by any ecosystem because of the limiting of resources, area and increasing competition due to overgrowing population.  

In this graph, the population is increasing steadily to get closer to carrying capacity and once it reaches the carrying capacity the rise in population will stop and then the graph will look like logistic growth graph.

So, the correct answer is D. The population steadily increased to get closer to carrying capacity.

Answer:

The population steadily increased to get closer to carrying capacity.

Explanation:

The correct answer is:   [C]:   " water through a cell membrane " .

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it is c because there is land and water near it.      i think

Answer:

The answer is C

Explanation:

A and B denote zones of river channels. In those zones, the river channels out to the sea. While A seems to be far from the sea coast, B is closer to the sea.

Zone D is oceanic zone and here the salinity will not fluctuate

C is zone where the river water mixes with the sea. This is termed as estuary where there are partially enclosed coastal bodies as there is flow of river or stream into the sea. Here the river freely connects with the sea. In other words, we can say this zone is transition place for the river environment and maritime environment. If biomes are situated here, it is sure to experience a mixup of saline water and river water bringing in fluctuations in salinity.

I guess the answer for this would be the DNA but i'm not sure tho, I haven't see this things since a long time.

Answer:

Silent mutation.

Explanation:

A silent mutation  may be defined as a change in the single nucleotide base without any change in the amino acid and result in the formation of the same protein.

Mutation has changed a single base of tRNA strand but this does not change the protein product. This means the mutation has not changed  the amino acid.

Thus, silent mutation is responsible for the change in the tRNA base

Mitosis is when the cell begins to divide and the cell membrane and the cytoplasm split apart and the chromesomes that act as a nuclei get replaced and a nucleus is formed in 2 identical copies of a diploid cell (daughter cells )

Answer:Mitosis includes several steps that occur after the DNA has been copied but before the cytoplasm is divided.

Explanation:It cant break apart then copy the DNA.That does not make sense.