Which of the following is an example of a beneficial mutation?

Inherited polyploidy causes your body to produce bacteria that will not resist antibiotics.
Spontaneous mutations produce polyploidy plants, producing larger and heartier plants.
Non-disjunction causes mutations that make some humans resistant to HIV.
Mutagens can decrease the rate at which mutations occur in an organism.

A inorganic is carbon dioxide,carbides,carbonates,cyanid,cyanate,thiocyanates, carbon dioxide and monoxide and much more.

Answer:

Explanation:I need to get some answers too

Answer:

A. He should have controlled his speed.

B. He should have controlled his webs

Answer: Limit the size of fishing fleets and catch size.

Explanation: Cod are nearly extinct therefore we either need to stop catching them or limit the amount you catch

The choice describes a strategy used to help restore cod populations is limiting the size of fishing fleets and catches. The correct option is A.

Atlantic cod, a fish that was essential to New England's economy, is being fished at historically low levels, and New England cod appears to be recovering from overfishing after many years.

Many people are concerned about eating fish because the IUCN has recently classified species including cod, haddock, and grouper as endangered. The fish that are linked to high bycatch rates are another worry for divers. Animals like dolphins and turtles are accidentally killed in the nets at this location.

Therefore, the correct option is A. limit the size of fishing fleets and catches.

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The Punnett square for the cross between a plant with the genotype tt and another plant with the genotype Tt shows that the offspring will have a 50% chance of having the genotype Tt and a 50% chance of having the genotype tt.

To fill in the Punnett square for the cross between a plant with the genotype tt and another plant with the genotype Tt, we need to consider the alleles of each parent and their possible combinations.

The genotype tt represents a homozygous recessive individual, where both alleles for the trait are lowercase (t). The genotype Tt represents a heterozygous individual, where one allele is uppercase (T) and the other allele is lowercase (t).

Let's set up the Punnett square:

      |  T  |  t  |

---------------------

 t  | Tt | tt |

---------------------

 t  | Tt | tt |

---------------------

In the top row, we place the alleles from the plant with the genotype Tt: T and t. In the first column, we place the alleles from the plant with the genotype tt: t and t.

Now, we can fill in the spaces within the Punnett square by combining the alleles from the top and side:

- The top-left square receives one T allele from the Tt parent and one t allele from the tt parent, resulting in the genotype Tt.

- The top-right square receives one T allele from the Tt parent and one t allele from the tt parent, resulting in the genotype Tt.

- The bottom-left square receives one t allele from the Tt parent and one t allele from the tt parent, resulting in the genotype tt.

- The bottom-right square receives one t allele from the Tt parent and one t allele from the tt parent, resulting in the genotype tt.

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The cells that were once identical have undergone differentiation, giving rise to distinct cell types in different cell layers.

The way that every one of the three cell layers became various pieces of the grown-up creature proposes that the cells that were once indistinguishable have gone through separation, a cycle by which cells with indistinguishable hereditary material form into various cell types with unmistakable primary and utilitarian qualities. During the beginning phases of early stage improvement, cells go through a course of specialization and separation, which includes changes in quality articulation and the reception of explicit morphological and utilitarian highlights. These separated cells then, at that point, bring about the various tissues, organs, and designs of the grown-up living being. This course of separation is essential for the appropriate turn of events and working of the creature.

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Requirements for facilitated diffusion include letter A: "The carrier molecule must be specific to the molecule that is transported. The direction of movement is always with the concentration gradient, never against the gradient"

Facilitated diffusion is an important method for cells in obtaining necessary molecules and remove other ones. In facilitated diffusion, the requirements include:

1. The carrier molecule must be specific to the molecule that is transported. This means that the carrier proteins in the cell membrane will only bind to and transport specific molecules, ensuring that the cell can control which substances enter or leave.

2. The direction of movement is always with the concentration gradient, never against the gradient. In facilitated diffusion, molecules move from an area of higher concentration to an area of lower concentration, without requiring energy input from the cell. This is different from active transport, which moves molecules against their concentration gradient and requires energy input in the form of ATP.

The complete question

Facilitated diffusion is an important method for cells in obtaining necessary molecules and remove other ones. Requirements for facilitated diffusion include which of the following?

A. The carrier molecule must be specific to the molecule that is transported. The direction of movement is always with the concentration gradient, never against the gradient.

B. The carrier molecule is nonspecific to the molecule that is transported. The direction of movement is always with the concentration gradient, never against the gradient.

C. The carrier molecule is nonspecific to the molecule that is transported. The direction of movement is always against the concentration gradient, never with the gradient.

D.The carrier molecule must be specific to the molecule that is transported and an ATP molecule must be attached to the specific carrier. The direction of movement is always against the concentration gradient, never with the gradient

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Answer:

It would be arthropoda

Explanation:

Insects and arthropods are the only invertebrates able to fly since insects are not a part of your list arthropoda would be the answer. I hope this helps and if you can give me brainliest? :)

RNA polymerase triggers the production of mRNA from the unzipped DNA

Answer:

It unzips the DNA strand.

Option 3 .Increasing in size. During G1 (Gap 1 phase), the cell grows and increases in size in preparation for DNA synthesis in the S phase. Accumulation of materials for DNA synthesis and the synthesis of DNA occur during S phase, while increasing the number of organelles may occur throughout the cell cycle.

The cell also undergoes a series of checks to ensure that it is healthy and ready to progress to the next phase of the cell cycle. These checks include monitoring DNA integrity, ensuring that enough nutrients and energy are available, and checking for damage or stress that might interfere with proper cell division. Once the cell passes these checks, it is ready to progress to the S phase and begin DNA synthesis.

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Full Question ;

which of the following occurs during G1?

1. accumulation of materials for DNA synthesis

2. The synthesis of DNA

3. Increasing in size

4. increasing number of organelles

Answer:When humans burn fossil fuels, most of the carbon quickly enters the atmosphere as carbon dioxide. Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world.

Explanation:

Answer:

When humans burn fossil fuels, most of the carbon quickly enters the atmosphere as carbon dioxide. ... Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world.

The burning of fossil fuels from various industrial processes adds nitrogen and nitrous oxide compounds to the atmosphere, which upsets the balance of natural nitrogen, polluting ecosystems and altering the ecology of entire regions. ... This upset in the balance of the nitrogen cycle affects biological diversity.

Explanation:

Hope This Helps??

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The cigarrettes have over 4.700 chemical substances and most of them are harmful or even poisonous, damaging your airways and the alveoli. The chemicals can affect our health in many ways, as they can damage DNA and make it harder for the cells to repair damaged DNA. Cancer usually is associated to a DNA damage, causing the damaged cell to replicate uncontrollably, creating a tumour. Therefore, damages in DNA structure can lead to a cancerous tumour.

Answer:

Smoking can cause cancer and then block your body from fighting it: Poisons in cigarette smoke can weaken the body's immune system, making it harder to kill cancer cells. When this happens, cancer cells keep growing without being stopped. Poisons in tobacco smoke can damage or change a cell's DNA.

Answer:

Plant biotechnology can be defined as the use of tissue culture and genetic engineering techniques to produce genetically modified plants that exhibit new or improved desirable characteristics.

Explanation:

These crops offer several benefits both farmers and consumers.

...

Pocket K No. 2: Plant Products of Biotechnology.

Product Trait

Bean Virus disease resistance

Canola Herbicide tolerance, modified oil/fatty acid, pollination control system, phytase production

Cotton Herbicide tolerance, insect resistance, low gossypol

Eggplant Insect resistance

Answer:

your anwser would be C) fibula

Answer:

b. Mosquitoes

Explanation:

Mosquitoes are an R-selected species.

Option D: dating of the earth is not evidence of evolution, because it does not show how evolution works.

Earth's age cannot be used to support evolution. It contributes significantly to our understanding of the evolution timeline, but it does not directly show how evolution works. The other examples, including comparative embryology, molecular comparisons, fossils, comparative anatomy, and vestiges of structures, all show that evolutionary processes have taken place.

Early stages of development in several species can be compared to find commonalities in their anatomical structures, which can point to a shared ancestor. For instance, the basic body plans of early fish, reptile, avian, and mammal embryos all resemble one another.

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Automobile emissions contain carbon monoxide, which can impair human breathing and stunt plant growth.

Automobile emissions are the by-products released from vehicles because of the combustion of fuel. There are three types of automobile emissions: evaporative emissions, refueling losses, and exhaust emissions. These emissions are the major cause of global warming.

Carbon monoxide is a colorless and odorless gas which is highly poisonous in nature. It is released from the vehicles due to incomplete combustion. It has a affinity in human cells 100 times more than oxygen. Large amounts of CO for longer times can cause the death of a person.

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When a cell is exposed to higher temperatures than it is accustomed to, one of the molecules that may stop working first is the enzyme.

Enzymes are protein molecules that catalyze biochemical reactions within the cell. However, enzymes have specific temperature ranges at which they function optimally. If the temperature exceeds this range, the enzyme's structure can become denatured, causing it to lose its functional shape and activity.

The denaturation of enzymes can disrupt their ability to bind to substrates and facilitate chemical reactions, thus affecting various cellular processes. As a result, the overall metabolic activity of the cell can be compromised.

It's important to note that different enzymes have different temperature optima and thermal stability. Some enzymes may be more tolerant to higher temperatures, while others may be more sensitive and prone to denaturation at relatively lower temperatures.

In addition to enzymes, other cellular components, such as membranes and proteins, can also be affected by excessive heat. Disruptions in membrane integrity and protein structure can have detrimental effects on cell function and viability.

Overall, the specific molecule that stops working first when a cell is heated to a moderately higher temperature will depend on the specific cell type, the temperature range, and the thermal stability of the molecules involved.

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All of the following are ways the body loses water except option D: cellular respiration.

Cellular respiration is a metabolic process that occurs within cells to produce energy in the form of ATP. While cellular respiration does involve the consumption of oxygen and the production of carbon dioxide, it does not directly result in the loss of water from the body. The water produced as a byproduct of cellular respiration is typically recycled and used within the body.

Insensible loss refers to the loss of water from the skin and respiratory tract that is not readily noticeable. It occurs through processes such as evaporation from the skin and the exhalation of water vapor during breathing.

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Answer: Negative feedback serves to reduce an excessive response and to keep a variable within the normal range. Negative feedback loops control body temperature and the blood glucose level.

Best Explanation of Evolutionary Advantages of Habituation: Option B - Habituation allows an animal to tune out unimportant stimuli and focus on things that are essential to survival or reproduction.

1. Habituation refers to the process by which an animal becomes accustomed to a repeated or constant stimulus and gradually reduces or eliminates its response to that stimulus.

2. Option A suggests that habituation improves an animal's odds of survival because the habituated animal will not waste energy investigating novel objects. While this may be true to some extent, it does not fully explain the evolutionary advantages of habituation.

3. Option B states that habituation allows an animal to tune out unimportant stimuli and focus on things that are essential to survival or reproduction. This explanation aligns with the concept of selective attention, where an animal can prioritize relevant information and ignore irrelevant or non-threatening stimuli. By filtering out non-essential stimuli, the animal can allocate its limited resources more efficiently, such as energy and attention, towards activities that directly contribute to its survival or reproductive success.

4. Option C proposes that habituation enables an animal to generalize from bad experiences and avoid similar situations in the future. While this can be a potential advantage of habituation, it does not fully capture the evolutionary benefits of the process.

5. Option D suggests that an animal that becomes habituated to a stimulus learns from repeated exposure that positive outcomes, such as food, are associated with the stimulus. While this may be true in some cases, it does not encompass the broader advantages of habituation in terms of selective attention and efficient resource allocation.

In conclusion, option B provides the best explanation for the evolutionary advantages of habituation as it highlights the ability of animals to filter out unimportant stimuli and prioritize essential information for survival and reproduction.

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Answer:

Both? I think but I don't know

Genes linked on the same chromosome tend to be inherited together, violating the principle of independent assortment.

The relative position of genes is determined by calculating the frequency of crossing-overs between genes located on the same chromosome. The closer two genes are located to each other on a chromosome, the lower is the probability that the independent distribution in the next generation violates the principle of the opposite chromosomes.

Crossing-over between them is highly likely, resulting in the formation of recombinant chromosomes. The phenotype resulting from a genotype is determined by the same distribution.

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Answer:

20,000 kg/m3 Or what ever unit you use

Explanation:

10 x 10 x 10 = 1000 x 20 = 20,000

10 and exponent = V x M = D

Based on the provided statements, the true statements regarding the sensory and motor nervous systems are:

The sensory nervous system contains both PNS and CNS components. The somatic nervous system component of the motor nervous system conducts impulses from the CNS to skeletal muscles. The motor nervous system contains both CNS and PNS components. The false statement is: The visceral sensory component of the sensory nervous system is under voluntary control.

The visceral sensory component of the sensory nervous system is responsible for detecting and transmitting information from the internal organs and is generally not under voluntary control.

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Among the given statements, the statement that is true is BMI correlates with disease risks. Option a is the correct choice.

BMI (body mass index) is calculated by dividing a person's weight in kilograms by the square of their height in meters.

A BMI of 25 or higher is considered overweight, and a BMI of 30 or higher is considered obese. These categories are associated with an increased risk of many diseases, including:

Therefore, option a. "It correlates with disease risks. " Is the true statement.

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The given question is not correct and is incomplete. The complete question is:

Which statement is true of body mass index?

a. It correlates with disease risks.

b. It decreases by 1 unit for every 10 years of life.

c. Its absolute value is less important than the rate at which it changes.

d. It is defined as the person's height divided by the square of the weight. e. It provides an estimate of the fat level of the body.

Homeostasis is the term for an organism's ability to maintain constant internal conditions.

Homeostasis is the process by which the organism maintains a stable internal environment. There are different physical and chemical parameters found within the body of an organism.

The organism maintains these parameters to keep the internal environment stable. This homeostasis is influenced by many factors like energy, fluids, electrolytes, nutrition, and immune response mediators.

Body temperature regulation is one example of homeostasis. Suppose a person is walking under a hot sun, he is exposed to heat.

This person's body temperature raises. This signal will be sent to the brain. In response, the brain will signal the blood vessels and sweat glands.

As a result, the blood vessels will dilate. And the sweat glands will produce sweat. Thereby, the body temperature decreases.

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Answer:

the answer is two types

Explanation:

hope this helps

Answer:

Plants have two different types of 'transport' tissue.

Explanation:

Xylem transports water and solutes from the roots to the leaves, phloem transports food from the leaves to the rest of the plant.