Which statement accurately compares two divisions of geologic time?
OA. Eras are longer than eons.
B. Epochs are longer than eras.
C. Periods are longer than eons.
D. Eras are longer than periods.

The statement that is a risk of replacing a coal-burning power plant with a nuclear power plant is improper storage of radioactive waste.

Nuclear power plant is a power plant that obtains its primary energy from the heat generated in nuclear reactions.

Nuclear source of energy is a renewable source while a coal source of energy is nonrenewable.

However, nuclear radiation releases radioactive particles indiscriminately into the environment when used.

Therefore, the statement that is a risk of replacing a coal-burning power plant with a nuclear power plant is improper storage of radioactive waste.

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Answer:

What are some differences between a food chain, web, or energy pyramid? Food chains show a limited feeding relationship between only a few organisms. Energy pyramid is the visual representation of the amount of energy, population, or biomass at each trophic level.

Answer:

A food chain represents the linear relationship between organisms for food. On the other hand, a food pyramid represents the optimal number of servings to be eaten each day from each of the basic food groups

Explanation:

Answer:

genes are the basic sequence of DNA that controls the traits of an organisms.

Explanation:

genes have nucleotide sequences. these sequences are involved in transmission of characters from one generation to other. if their is an error occur in this sequence the new offspring will b dissimilar from parent in this secific character which chnaged.

central dogma is the basic process through which genes are controlling the traits. first step is transcriotion through which DNA or gene is transcribed into mRNA sequence. then the second step is translation in which mRNA is translated into protein. in this way by making proteins genes control the traits or functiong of a body.

Neurotransmitters and hormones are the pairs work together to form the neuroendocrine system.

A neurotransmitter is a signaling molecule secreted via a neuron to have an effect on another mobile across a synapse. The cell receiving the sign, any major frame component or goal mobile, may be another neuron, however can also be a gland or muscle mobile.

Neurotransmitters are chemical messengers that your frame can't characteristic with out. Their activity is to carry chemical alerts  from one neuron to the following goal cellular. the subsequent goal cellular can be every other nerve cell, a muscle mobile or a gland.

GABA The neurotransmitter GABA is thought to be the regulatory middle for tension. studies has proven a strong affiliation among GABA levels and the development of temper disorders, indicating that GABA also has an effect on emotions.

Neurotransmitters are essential in boosting and balancing alerts in the brain and for keeping the brain functioning. They help manage automatic responses inclusive of respiration and coronary heart charge, however they also have mental functions including gaining knowledge of, managing temper, worry, delight, and happiness.

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Answer:

Pacific Ocean

The Galapagos Islands are located 1000 km off Ecuador's coast in the Pacific Ocean. The Galapagos archipelago consists of 13 major islands, 6 smaller islands and many islets.

Explanation:

Sylvia can use statement A correctly in her report: "Global winds pull surface ocean water into the major ocean currents observed today."

This statement accurately describes one of the primary causes of ocean currents - the force of global winds on the surface of the ocean, which creates areas of high and low pressure and drives the movement of water.

Statement B is incorrect because global winds do not cause surface ocean currents to extend deeper beneath the surface of the water; rather, ocean currents are typically driven by the wind and waves on the surface layer of the ocean.

Statement C is also incorrect because while changes in Earth's climate can have an impact on ocean currents over long periods of time, they are not the primary cause of surface ocean currents.

Statement D is incorrect because ocean currents can exist in all parts of the ocean, not just along coastlines.

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Answer:

The third line of defense is specific resistance. This system relies on antigens, which are specific substances found in foreign microbes. Most antigens are proteins that serve as the stimulus to produce an immune response. ... The activation of T-cells by a specific antigen is called cell-mediated immunity.

Hope this helps out

Explanation:

Answer:

Tectonic plate motion can directly result in VOLCANIC ERUPTIONS.

Many volcanoes erupt due to movement in tectonic plates, and furthermore, most volcanoes are located adjacent to tectonic plates. (For example, the ring of fire around the Pacific Plate)

Let me know if this helps!

Answer:

A haploid is a cell with a single set of chromosomes.

Answer:

Matter moves from one consumer to another consumer.

Explanation:

Depending on the way organisms get their food, they can be producers or consumers.

Producers are organisms that produce their food. These are usually organisms that possess the pigment called chlorophyll (most plants and some protists and bacteria). Chlorophyll allows them to perform photosynthesis - a process in which they produce the energy necessary for their survival. With the help of sunlight, they turn water, carbon dioxide, and minerals into oxygen and glucose.

Consumers are organisms that can't produce their own food, which is why they eat (consume) other organisms. All organisms (animals, fungi, some plants, etc) that are not producers are consumers.

The common grass shrimp feeds on the phytoplankton, which makes it a consumer. Then, the Atlantic silverside feeds on the shrimp, which means that it is also a consumer. This means that matter moves from one consumer to another.

True hope it helps :>

Answer:

A balance inside the body or cells of organisms is called homeostasis.

Explanation:

Hope this helps. God bless

Answer:

The efficiency of the repair mechanism is not 100 percent.

Explanation:

The DNA damages caused by physical conditions (i.e., exposure to radiation, UV light, etc.) and chemical agents (i.e., mutagenic compounds) are regularly repaired by DNA repair enzymes that recognize and correct nucleotide errors before the fixation of the mutation. The Apurinic/apyrimidinic (AP) endonuclease is the enzyme responsible for repairing the damaged DNA. However, this process is not perfect, and mutations that were not recognized by this mechanism are fixed in the next round of replication.

Explanation:

For simple ions, i.e.

Na+ , Cl− , Fe2+ , Fe3+ , the oxidation number of the element is simply the charge on the ion.

Explanation:

For more complex ions, the SUM of the oxidation numbers equals the charge on the ion. The sum of the oxidation numbers also equals the charge on the molecule in a NEUTRAL molecule.

Let's consider Cl−, ClO2 , ClO−4 . Typically the oxidation number of oxygen in its oxides is −

II , and it is here in these examples.

Given what I have said the oxidation number of

Cl

in chloride ion,

Cl− , is −I . The oxidation number of Cl in ClO

2 is +IV, and the oxidation number of

Cl

in perchlorate,

ClO−4 , is +VII .

I don't what level you are at. If you are at A level, you simply have to know what I wrote in the opening statement. If you are an undergrad you do have to know how to assign oxidation states in more complicated molecules and ions. Good luck.

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The heart is a four-chambered organ that is located in the center of the chest. The two upper chambers of the heart are called the atria, and the two lower chambers are called the ventricles. The atria receive blood from the body, and the ventricles pump blood to the lungs and the rest of the body.

The heart is a vital organ that is essential for life. It is responsible for pumping blood throughout the body, which delivers oxygen and nutrients to the cells and removes waste products. The heart is a strong and resilient organ, but it can be damaged by disease or injury. If the heart is not functioning properly, it can lead to a number of health problems, including heart failure, stroke, and heart attack.

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When sodium azide (NaN3) decomposes, it produces nitrogen gas (N2) and sodium metal (Na) as the other product:

2 NaN3(s) → 2 Na(s) + 3 N2(g)

The balanced chemical equation for this reaction indicates that the other product formed is sodium metal (Na). This is because the mass and charge are balanced on both sides of the equation.

Furthermore, sodium is an alkali metal and is highly reactive, making it a plausible product of a chemical reaction. Additionally, sodium is known to react with water to produce hydrogen gas and an alkaline solution, which can explain why the residue left after airbag deployment is often a white powder or a yellowish substance, which is the alkali metal hydroxide formed from the reaction of the sodium with moisture in the air.

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Answer:

b

Explanation:

Explanation:

If decomposers did not exist on Earth, organic matter such as dead plants and animals would not be broken down into nutrients that could be recycled back into the ecosystem. This would lead to a buildup of organic matter and a depletion of nutrients in the soil, which would ultimately result in a decline in the productivity of the ecosystem. Additionally, without decomposers, harmful pathogens and diseases could accumulate, which could have negative effects on the health of other organisms in the ecosystem. Overall, the absence of decomposers would disrupt the delicate balance of nutrient cycling and energy flow in ecosystems, and could lead to a collapse of the ecosystem.

James Lake of the UCLA/NASA Astrobiology Institute presented new evidence regarding the evolution of eukaryotic cells and hypothesized that eukaryotes developed from an endosymbiotic gene fusion between the two other domains of life.

To evaluate the evidence that would best support this hypothesis, one should consider the following options:

including eukaryotes, prokaryotes, and archaea, to identify genes that are unique to eukaryotes and that may have originated from an endosymbiotic event.

By comparing the relationships of eukaryotic genes to those of prokaryotic and archaeal genes, one can infer the evolutionary history of eukaryotic cells.

as it would involve identifying genes in eukaryotic cells that are composed of segments from different prokaryotic or archaeal genomes, which would indicate that they have arisen from a fusion event.

In summary, the genetic evidence that would best support James Lake's hypothesis is the identification of chimeric genes in eukaryotic cells, which would indicate that they have arisen from a fusion.

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Assuming a single diallelic gene coding for the eye color trait, the chi-square test results suggests that there is not enough evidence to reject the null hypothesis. Parents must be heter0zyg0us. 0.48 < 3.841

Assuming the eye color is coded by a single diallelic gene and that black is dominant over yellow, we will name the alleles B for black and b for yellow.

Hypothesis: Two heter0zyg0us lizards are crossed. Bb  x  Bb

The expected phenotypic ratio among the progeny is 3:1,

So, according to these proportions, we can get the expected numbers

4 ------------------- 100 individuals

3 -------------------  X = 75 black-eyed individuals

1 -------------------X = 25 yellow-eyed individuals

Now, we will compare the observed values and the expected values.

                             Black eyes                    Yellow eyes    

Observed                  72                                       28

Expected                   75                                       25

(Obs-Exp)²/Exp      0.12                                     0.36

X² = Σ(Obs-Exp)²/Exp = 0.12 + 0.36 = 0.48

So the chi-square value is 0.48.

Now we will compare this value with the critical table value. To do it, we need to know the degrees of freedom and the significance level.

Degrees of freedom = n - 1 = 2 - 1 = 1

Significance level = 0.05

Critical value = 3.841

X² < Critical value

0.48 < 3.841

The critical value is greater than X², so there is not enough evidence to reject the null hypothesis. Parents must be heter0zyg0us.

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This is most likely to occur in the population the gene pool of the population will remain relatively constant. Thus, option B is correct.

Genes has been defined as the functional hereditary unit of genetics that carries all information from parents to offsprings. As there will no changes in the gene pool because the genes are constant as gene will not get changed so it will not be affected by the gene pool.

Genes are the functional hereditary unit of genetics that carries all information from parents to offsprings. The frequency of dominant alleles will slowly increase and the genetic variability of the population will slowly decrease. The frequency of dominant and recessive alleles will equalize.

Therefore, This is most likely to occur in the population the gene pool of the population will remain relatively constant. Thus, option B is correct.

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Answer: B)The gene pool of the population will remain relatively constant.

Explanation: This is right on edge i just completed the quiz and got 100% thx to the person above!! :D

Answer: B

Explanation: The rest are produced through mitosis.

A type of cell that is created during the process of meiosis is known as a sperm cell. Thus, the correct option is C.

Meiosis can be defined as the type of the cell division which goes through or in which two daughter cells has been produced from the parental cell that has not genetically identical to their real parental cell. Meiosis has been also known as the reductional division.

The germ cells must be generally produced by the process of the meiosis. It is because these cells has been usually contain half of the amount of the genetic material as it is compared to the parental cell. After producing these gametes, the cells has undergo through the process of the fertilization in order to produce the product known as zygotes which contain the genetic material of both males and females.

Therefore, sperm cells and egg cells are the types of cells that are created during the process of meiosis.

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Mop bucket does not have a food-contact surface.

All surfaces that might come into contact with food products during production, processing, and packaging are referred to as "food contact surfaces. "Additionally, according to the FDA (U.S. Food and Drug Administration), "surfaces that contact human food and those surfaces from which drainage onto the food or onto surfaces that contact the food ordinarily occurs during the normal course of operations" are considered to be "food contact surfaces."

This concept includes surfaces of equipment as well as utensils. Various food-safe and/or food-grade materials, including stainless steel, plastic, wood, rubber, glass, or ceramics, can be used to create these surfaces.

Hence, food-contact surface are those which comes in contact of food while preparation or servings.

Which item does NOT have a food-contact surface?

a. Tongs

b. glasses

c. utensils

d. mop bucket

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Answer:

True

Explanation:

In nuclear fission, an unstable atom separates into two or more shorter, more steady fragments, discharging energy.  Matter is not preserved throughout this process because some of the weight of the merging nucleus is transformed to power, which would be discharged. Fusion is the mechanism through which massive stars generate enormous energy amounts.

Answer:

lights it can be dispersed by winds s compared by heavy seeds which can be dispersed buy water.

Explanation:

does this help

Photosynthesis and aerobic respiration are two essential biological processes that are intimately connected, as they provide the basis for energy flow in most living organisms. Photosynthesis is the process by which plants and some other organisms convert light energy into chemical energy in the form of organic molecules, while aerobic respiration is the process by which cells break down organic molecules to release energy in the form of ATP (adenosine triphosphate).

The products of photosynthesis, which are organic molecules such as glucose and other sugars, serve as substrates for aerobic respiration. During aerobic respiration, these organic molecules are broken down by a series of enzymatic reactions, releasing energy that is used to generate ATP. This energy is used by the cell to carry out various metabolic processes and perform work.

On the other hand, the products of aerobic respiration, which are carbon dioxide (CO2) and water (H2O), are utilized in photosynthesis. During photosynthesis, plants and other organisms take in CO2 from the atmosphere and use it, along with water and light energy, to produce organic molecules such as glucose. This process is facilitated by a group of pigments called chlorophyll, which are located in the chloroplasts of plant cells.

Therefore, the substrates and products of photosynthesis and aerobic respiration feed into one another, creating a continuous cycle of energy flow. The organic molecules produced during photosynthesis provide the energy necessary for cells to carry out aerobic respiration, while the products of aerobic respiration are used in photosynthesis to produce more organic molecules. This cycle helps to ensure that the energy needs of living organisms are continuously met and that the environment remains in balance.

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Answer:

Forward Facing Eyes

duh how much more does it needs to be obvious

Osteoblasts and osteocytes, specialized cells found in bone tissue, help support the skeletal fibers in the cell.

Osteoblasts and osteocytes are specialized cells that help support the skeletal fibers in the cell.

In summary, osteoblasts and osteocytes are specialized cells that work together to support and maintain the skeletal fibers in the cell, contributing to the overall structure and function of the skeletal system.

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