What type of material is exchanged during "crossing over"?

Answer:

The authority of EPA set several standards for drinking water quality,water suppliers,localities etc.

Explanation:

The regulations are-

1) National Primary Drinking Water regulations-

This regulation is legally possible which is applied in public water system.Primary standards protect public health by controlling the contaminants present in drinking water.

2)National Secondary Drinking water Regulations-

These regulations don't set any proper guideline to control contaminants present in water.

3)Unregulated Contaminants-

The Safe Drinking Water Act (SDWA) is a process through which EPA have to enlist the unregulated contaminants that are require in National drinking water regulations.EPA uses there unregulated contaminants and collect data that will help us to determine that whether we have to regulate that contaminants or not.

Answer:

2,3,5

Explanation:

i just finished it.

Answer:

"In order to work as an environmental scientist, in entry level job it requires a bachelor degree in environmental science but for the more research type, a person should have a master degree."

Explanation:

In order to work as an environmental scientist, in entry level job it requires a bachelor degree in environmental science but for the more research type, a person should have a master degree. Also with bachelor in biology, engineering, chemistry and physics will be acceptable to begin a career as an environmental scientist. Basically their work is to conduct research, control as well as remove the pollutant source which are affecting the environment as well as the public health. They generally fix the environmental problems.

Answer:

atmospheric pressure

Explanation:

hope this helps sweetheart

The correct answer is option A. Barometers are instruments used specifically to measure atmospheric pressure.

So, barometers are uniquely designed to measure atmospheric pressure, which helps in weather forecasting and understanding weather patterns. They are sensitive to these pressure changes and are essential tools in meteorology and weather forecasting.

Why other options are not correct:

Option B is incorrect because temperature is measured using thermometers, which are designed to detect and quantify thermal energy or heat. Thermometers use various principles such as expansion of liquids, gases, or digital sensors to determine temperature.

Option C is incorrect because humidity refers to the amount of moisture or water vapor present in the air. It is measured using instruments called hygrometers or psychrometers, which analyze the moisture content in the atmosphere.

Option D is incorrect because wind speed is measured using instruments called anemometers. Anemometers detect and quantify the speed of wind currents, which is crucial for meteorological purposes and environmental monitoring.

Final answer:

Atoms from nonmetals, especially in groups 16 and 17, are likely to form negative ions (anions), while metals will typically form positive ions (cations). Phosphorus (P) would form a P³⁻ anion, while magnesium (Mg) and aluminium (Al) form Mg²⁺ and Al³⁺ cations, respectively.

Explanation:

Formation of Ions and Expected Charges

In chemistry, atoms form ions to achieve a more stable electronic configuration that is similar to the nearest noble gas. Nonmetals, particularly those in groups 16 and 17, tend to gain electrons to become negatively charged anions. On the other hand, metals often lose electrons to form positively charged cations.

For example, phosphorus (P), being in group 15, would be expected to form a negative ion (P³⁻). Nonmetals with strong oxidizing properties, such as chlorine (Cl) and oxygen (O), form stable negative ions by gaining electrons, resulting in Cl⁻ and O²⁻ respectively.

Answer:

"Weather" is the  day to day conditions of an area including temperature, Wind direction and speed, Air pressure, relative humanity, and precipitation

Explanation:

It is the condition of the atmosphere which tells us about the extent at which it is hot or cold, wet or dry, or it can be calm or stormy type. Basically the weather happens at the least level of the atmosphere. Which is we call as the troposphere that is found just below the stratosphere. Troposphere is the layer present in the most lower level forming the Earth's atmosphere. In this layer of has 75% mass out of atmospheric mass and 99% of the total mass of water vapor.

Final answer:

All of the listed terrestrial biomes, including temperate deciduous forest, tundra, desert, and grassland/prairie, are found in the United States. Therefore, the premise of the question is incorrect as none of the options are exclusive outside the U.S.

Explanation:

The terrestrial biome that cannot be found in the United States is the temperate deciduous forest. This is incorrect because temperate deciduous forests are indeed found in the United States, particularly in the eastern part. The United States is home to a variety of biomes, including tundra in Alaska, multiple desert biomes in the southwest such as the Mojave and Sonoran deserts, and extensive grassland/prairie regions in the Midwest.

In summary, all of the options listed, A: temperate deciduous forest, B: tundra, C: desert, and D: grassland/prairie, can be found in the United States. Hence, none of the given answers would be correct. The United States boasts an array of biomes due to its vast size and variety of climates.

Answer:

c

Explanation:

if there was no change, there is no way for the strongest of a species to pass on their genes as all of the species would be exactly the same and there would be no strongest

Answer:

Evolution through natural selection would not occur

The structure H-C=C-H is incorrect as carbon can form a maximum of four bonds. Additional atoms or groups should be added to the carbon atom to correct the structure.

The structure H-C=C-H is incorrect because carbon can form a maximum of four bonds, but in this structure, it is only forming two bonds.

Carbon typically forms four single bonds in order to achieve a stable electron configuration. In the given structure, one carbon atom is only bonded to one hydrogen atom, leaving one unused bond.

To correct the structure, additional atoms or groups should be added to the carbon atom so that it forms four bonds in total.

https://brainly.com/question/33579397

#SPJ3

Answer:

Every carbon atom has six protons, and the majority of carbon atoms have six neutrons. A carbon-12 atom has 6 protons (6P) and 6 neutrons (6N). But some types of carbon have more than six neutrons. We call forms of elements that have a different number of neutrons, isotopes.

Answer:

yes.

Explanation:

carbon contains 6 protons, 6 electrons as well as 6 neutrons

Answer: The correct answer is option-sedimentary rock

Explanation: Metamorphic rock. Rock formed by cooling. Rock formed by compaction. Sedimentary rock.

In swamp freshwater ecosystems does water move constantly in

one direction.

"An ecosystem characterized by low-salt content, making a suitable environment for various plants and animals is known as a freshwater ecosystem."

The freshwater ecosystem is mainly divided into three types based on its region –

The main characteristics are:

"Swamp, type of wetland ecosystem characterized by mineral soils with poor drainage and by plant life dominated by trees. "

To know more about freshwater ecosystems here https://brainly.com/question/26826811

#SPJ2

Answer:

A

Explanationits right:

Answer:

A

Explanation:

international trade makes a larger market, which is a benefit.

The statement indicating 'A larger market to sell to"  represent a benefit of international trade (Option A).

International trade can be defined as the exchange of products and also services between different nations.

In conclusion, the statement indicating 'A larger market to sell to"  represent a benefit of international trade (Option A).

Learn more in:

https://brainly.com/question/15115779

#SPJ2

Answer:

A new study of plants that are reproduced by 'cloning' has shown why cloned plants are not identical. Scientists have known for some time that 'clonal' (regenerant) organisms are not always identical. Now researchers believe they have found out why this is the case in plants: the genomes of regenerant plants carry relatively high frequencies of new DNA sequence mutations that were not present in the genome of the donor plant.

Explanation:

Answer:

Explanation:

Colonial organisms are made by trees that are genetically processed. This can happen by using rhizomes. These colonial organisms can either be unicellular or multicellular. Which proves that this can be lined up with letter D.

Groups of cells performing a common function are known as Tissues. One organ in the body is made up of two tissues and those a the functions. Every organ has these this tissues and make up an organ system. Since we are just talking about one organ, it proves our answer of letter C.

Best of Luck!

Explanation:

Crossing over is an important section of the normal segregation of the chromosomes in case of the meiosis. Crossing over happens due to the genetic variations, as the genetic materials gets alter at the time of crossing over. The chromatids that are bind together with the help of the centromere do not remain similar in this case. Crossing over gives rise to variation because the alternation takes place between the nonidentical chromatids having different characteristics or traits. Sometimes gives rise to completely new trait which is not present in both the parents this condition makes the . genetic diversity.

Answer:

Explanation:The condition of the Rh factor is called __RH positive_when present and__rh negative_ when absent.

Answer:

The condition of the Rh factor is called Positive when present and Negative when absent.

Explanation:

Answer:

Option A is correct that is Mitosis.

Explanation:

In mitosis, The complex of DNA and protein that is chromatin condensation results.

2. Parieto temporal suture.

3. Parietal bone.

4. Occipital bone.

5. Temporal bone.

The 1 as mentioned is the nasal bone. It is joint with the maxilla and forms the structure of nose.

The marking of 2 is the Parieto temporal suture. This suture is a squamosal suture, with a peculiar type of structure. This joins two bones namely parietal bone and temporal bone.

The 3 is the parietal bone. This bone joins with Frontal bone at front, temporal bone on sides, with another parietal bone on the middle, and occipital bone in the posterior part.

4 is the occipital bone which joins with the parietal bone in lambdoid suture.

And the 5 is the temporal bone present laterally to cranial cavity.

Darwin's observations of fossils and landscape changes provided evidence supporting Lyell's theory of an ancient Earth shaped by gradual geological processes, thereby giving credence to the sufficient time needed for evolution by natural selection.

Charles Darwin's observations during his voyage on the HMS Beagle provided support for Charles Lyell's theory of an ancient Earth undergoing continual geologic change. Lyell proposed that geological change occurred gradually over long periods of time through processes still operating today, as opposed to sudden, catastrophic events. In light of Lyell's concepts, Darwin's discovery of sea life fossils high in the mountains indicated that the Earth's landscape had been reshaped over millions of years, which was compatible with his theory of evolution through natural selection. This slow and continuous change in geology suggested by Lyell allowed Darwin to consider that similarly gradual biological processes could lead to the evolution of species.

Darwin's reasoning, influenced by Lyell, was threefold: he recognized that species could change over time; he acknowledged the ancient Earth allowing sufficient time for evolution, given the diversity of life; and he saw the implication of a 'struggle for existence' from population pressures. Lyell's ideas, alongside the likes of Lamarck and Malthus, provided key frameworks for Darwin to propel his own evolutionary theories forward.

Darwin's observations of fossils, geological formations, and coral reefs supported Lyell's theory of gradual, uniformitarian geological change over immense periods.

Here are a few key points on how Darwin's observations supported Lyell's theory:

1. Geological Formations:

2. Fossils and Succession:

3. Coral Reefs:

4. Volcanic Activity:

Answer: a simple sac or highly branched

Answer: Joined, loves

Explanation: "joined" and "loves" are the verbs because it explains what she did.

Answer:

Joined, loves

Explanation:

Joined and loves are the two verbs in the sentence because, the both are actions.

Answer:    

The period focused on self-actualization and one's ability to accept what is going on in one's life. The earliest Renaissance literature appeared in Italy in the 14th century; Petrarch, Machiavelli, and Ariosto are notable examples of Italian Renaissance writers.

Explanation:

Final answer:

Renaissance writers created works that reflected the human experience, often incorporating classical themes and promoting harmony and beauty. They explored love, religious faith, and humanistic themes, and the rise of genres such as the Gothic tale marked literary innovation. The writings of Dante, Petrarch, and their contemporaries were key in shaping this transformative period.

Explanation:

Renaissance Writers and Their Subjects

Renaissance writers were deeply influenced by the catastrophes of the 14th century such as the Hundred Years' War, the Black Death, and widespread famines, which paradoxically helped set the stage for the later flourishing of the arts known as the Renaissance. This period is characterized by a revival of interest in the classical knowledge of Greece and Rome, humanist values, and artistic innovation. Dante Alighieri, Petrarch, and Giovanni Boccaccio were among the early figures whose works laid the groundwork for Renaissance thought and literature.

Dante and Petrarch, operating during times of economic recession and social instability, focused on the human experience, integrating elements of classical antiquity with contemporary concerns. Petrarch, particularly, advocated for the use of clear, classical Latin and imitating the style of ancient Roman writers. In the midst of recovery from plague and war, there emerged a wealthier population with a demand for luxury goods, including literature and arts, which stimulated the creation of a new merchant class and patronage for writers and artists. As a result, authors during this time wrote on a range of topics, including human relationships, religious faith, and philosophical inquiry into the nature of love and beauty. Their works often stressed harmony and beauty, two pillars of Renaissance aesthetics.

Emerging out of this context were the Gothic and mystery tales with Edgar Allan Poe and Mary Shelley being notable contributors to this genre. Mannerism later emerged as a reaction against the earlier Renaissance styles, rejecting harmony and ideal proportions for more exaggerated and emotionally expressive forms. The renewed interest in classical Greek philosophy and literature aided Renaissance writers in exploring humanistic themes, with the church providing significant patronage for many works.

Answer:

oxygen in the solution will naturally diffuse into the cell.

Explanation:

Cells require oxygen for cellular respiration to occur. When a cell is places in a solution having oxygen dissolved in it, The concentration of the oxygen outside the cell will be more as compared to the concentration of oxygen inside the cell. As a result, the cell will take up oxygen by the process of diffusion. Diffusion is the movement of particles from a higher concentration to a lower concentration along a concentration gradient.

Vertical farming is the best technique for teaching the benefit of sustainable farming in an urban New York City elementary school due to its space efficiency and the hands-on learning experiences it can provide to students. So the correct option is the fifth option.

The best technique to employ in teaching elementary school students in New York City the benefit of sustainable farming could be vertical farming. This method is well-suited to urban environments where space is limited. Vertical farming involves stacking layers of plants on top of each other and growing them indoors, often using hydroponic or aeroponic systems. This type of farming conserves space and resources, reduces transportation costs and emissions by growing food close to where it will be consumed, and can provide fresh local produce year-round.

While options like urban greenhouses, precision agriculture, and aqua farming are also methods of sustainable farming, vertical farming is often more practical and visible for an urban school setting. It also serves as an excellent educational tool to demonstrate sustainable practices and innovative agricultural technology to students.

Moreover, this technique doesn't require large tracts of land and can be implemented on a small scale within the school itself, offering students hands-on learning experiences.

https://brainly.com/question/22225775

#SPJ12

Explanation:

Three.

Photosynthesis produces glucose and O2 from inorganic CO2, light energy and water.  This occurs in distinct steps: 1) light fixation,  2) electron transport and NADPH production 3)  ATP generation, then 4) carbon fixation and carbohydrate production.

6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

Further Explanation:

Photosynthesis is a chemical process, essential to plant and other primary producers producing energy. As oxygen is emitted, energy in the form of glucose molecules is created from light, water, and carbon dioxide. It happens in several complicated stages, photosynthesis is a speed-limited process, depending on several factors including concentration of carbon dioxide, ambient temperature and light intensity; energy is extracted from photons, i.e. light particles, and water is used as a reduction agent. It occurs in the thykaloids, where pigment molecules live like chlorophyll.

Photosynthesis occurs in several complex steps and is a reaction of a small duration, depending on several fa factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Additionally,

Learn more about photosynthesis at brainly.com/question/4216541

Learn more about cellular life at brainly.com/question/11259903

#LearnWithBrainly

Answer:

It's five

Explanation:

I just took the test

Answer:

A cell is in equilibrium  when solute concentrations inside and outside the cell are equal.

Explanation:

The equilibrium is state when the concentration of the system is same both inside and outside. There will be movement in the particles of the solute in which the cell is placed although its a equilibrium state. but the movement will not cause any further changes to the concentration of the solution because there will be  movement of same and equal number of particle in the same direction. A cell in a  human body  cannot be in a equilibrium state because the human body requires a continuous and constant flow of materials into and out of the cell  in order to keeps the metabolic pathways from attaining equilibrium so as to make the cell to do work throughout the life.

Answer:

no

Explanation:

because noooooooooolollooooo

Final answer:

Although the development of the periodic table involved contributions from various scientists, Dmitri Mendeleev is most recognized due to his significant contribution and the predictive power of his table. Other scientists like Dobereiner, Newlands, Meyer, and Moseley also made important contributions, with Moseley's refinement crucial for the table's modern form. Recognition often highlights contributions with profound impacts, despite the collaborative nature of scientific advancement.

Explanation:

Is it fair that some scientists have received more credit than others for their work on the development of the periodic table? This question delves into the complex nature of scientific contribution and recognition. Indeed, the formulation of the modern periodic table is attributed to multiple scientists over time, with Dmitri Mendeleev often receiving the most recognition due to his significant contribution of organizing elements by atomic weight and predicting the properties of undiscovered elements.

Other notable scientists like Dobereiner, Newlands, Meyer, and Moseley also contributed importantly to its development. Moseley, for example, refined the table by ordering elements according to atomic number rather than atomic weight, which resolved many of the table's inconsistencies and explained the place of the noble gases. Yet, Mendeleev's rapid acceptance was mainly due to his table's extensive predictive power and its capacity to accommodate newly discovered elements.

Considering scientific advancement as a cumulative process, it's vital to acknowledge all contributions, big or small. However, breakthroughs that significantly advance understanding or utility often receive more recognition. While this may seem unfair to some, it highlights contributions that have had the most profound impact on our knowledge and application of scientific principles.