The easiest way to recognize food contaminated with spoilage bacteria

The conclusion in the scientific method serves to summarize experimental findings and their importance, answer the initial scientific questions, and suggest further research areas, thus advancing collective knowledge.

The purpose of a conclusion in the scientific method is to summarize the importance of the experimental findings. A conclusion should answer the scientific questions posed at the beginning of the research, but it should also leave the door open for further questions and exploration. By summarizing the results and their implications, the conclusion allows other researchers to continue and expand on the findings, fostering a continuous cycle of inquiry and discovery. Conclusions are integral to academic work because they provide closure while also suggesting future avenues of research, thus contributing to the collective knowledge in a particular field.

Answer:

The correct answer is 60 percent.

Explanation:

The Clean Water Act refers to a federal law of United States, which observes the release of contaminants into the surface waters of the country, comprising rivers, lakes, wetlands, streams, and coastal areas. Approximately 30 years after passing of the Clean Water Act in the United States, the percentage of surface water, that is, regarded safe for swimming and fishing had enhanced from 36 percent to 60 percent, which is approximate twice the original value. Some kind of policies and programs were implemented as part of the act.

The body system that allows a person to walk, talk, and breathe is the respiratory system. The respiratory system is composed of the airway, the lungs, and the muscles of the respiration. The respiratory system allows a person to taken in the air allowing him to breathe in the oxygen, and breathe out the carbon-dioxide. The ability to speak is also dependent on the breathing in of the air. The person can walk, or run, as a thanks to his respiratory system, which is constantly inhaling oxygen to provide him the energy.

Hence, the answer is 'respiratory system'.

The best description of a structural adaptation that affects the mouth shape is the pelican has a mouth shape and the beak that is unique me about aptitudes food source fish.

Adaptations are the changes in the body which help an organism to survive better in their surrounding environment. Adaptation is the dynamic evolutionary method of natural selection which suits organisms better to their environment, enhancing their evolutionary health. Adaptations also miles a kingdom reached by means of the populace in the course of the technique.

Structural adaptations are the physical features of living organisms like the bill on a bird or the fur on a bear body. Other adaptations are behavioral changes. Behavioral adaptations are the things or changes which organisms do to survive. For example, bird calls and migrations are the examples of behavioral adaptations. Adaptations are the result of evolution.

The structural adaptation that affects mouth shape is the pelican has a mouth shape and the beak that is unique me about aptitudes food source fish.

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The answer is the telophase.

In the given image, the marked portion shows a cell undergoing mitotic cell division and it is in the telophase of the division. In the telophase a complete set of identical chromosomes is reached at each pole of the cell. The spindle breaks down and disappear. The nuclear membrane starts to form around each set of daughter chromosomes.

The phase of mitotic division of a cell cannot be accurately determined without a visual or description. However, the phases of mitosis are Prophase, Metaphase, Anaphase, and Telophase.

The highlighted cell's phase in mitotic division cannot be determined without an image or description. Nevertheless, the phases of mitotic division include: Prophase, Metaphase, Anaphase, and Telophase. Here's a brief overview of these phases:

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Final answer:

Bone marrow is considered a tissue because it is a connective tissue with specialized functions—the yellow marrow stores energy, and the red marrow is responsible for hematopoiesis, the production of blood cells.

Explanation:

Bone marrow is referred to as a tissue because it is a connective tissue that fills the interior of bones. There are two types of bone marrow: yellow marrow and red marrow. Yellow marrow is rich in adipose tissue and stores energy in the form of triglycerides within adipocytes. Red marrow plays a crucial role in hematopoiesis, the production of blood cells, including red blood cells, white blood cells, and platelets. This process involves the proliferation of stem cells, which are self-renewing and differentiate into various blood cell types. Bone marrow functions as a vital component within bones, which are considered organs containing multiple types of tissues such as blood, connective tissue, nerves, and bone tissue. Osteocytes within bone tissues create the mineral matrix that characterizes bones.

Answer:

B.

one who was sick with the flu and flew to multiple countries.

Answer:

incinerating

Explanation:

apex

The taxonomic kingdoms include Kingdom Plantae, Kingdom Animalia, Kingdom Fungi, Kingdom Protista, and Kingdom Monera, which is now divided into the domains Archaea and Bacteria among the prokaryotes.

The taxonomic kingdoms, which are a part of the classification system for living organisms, include the following:

Within the domain Eukarya, there are also the kingdoms that include eukaryotic organisms: Protista, Fungi, Plantae, and Animalia. These kingdoms are different from the Archaea and Bacteria, which are prokaryotic. It's important to note that within modern taxonomy, the three-domain system comprises Bacteria, Archaea, and Eukarya. The former Kingdom Monera has been split into the domains Bacteria and Archaea.

Answer:

The answer is manageable society.

Explanation:

the two characteristics would be the worry of equity in which individuals can be equivalent to one another and another attribute would be the private enterprise that underlines the utilization of sustainable power source. In unsustainable society, the utilization of petroleum products is one attribute in which it can't be restored and the second is the gay occupants in which if once is lost, it is completely gone.

Answer:

C - A mutation changed the sequence of DNA bases of a gene.

Explanation:

Sorry fam for answering late, but this should help other people

and this is 100% correct!

~ Ella

The correct answer is a mutation changes the sequence of DNA bases of a gene which is in option A as gene is a specific segment of DNA that contains the instructions for making a specific protein. 

 Mutations can occur within a gene when there is a change in the sequence of the DNA bases. This change can alter the instructions for making the protein, resulting in a different or nonfunctional protein. Mutations can also occur outside of genes, in noncoding regions of DNA or in regulatory sequences that control gene expression. In summary, mutations can affect genes, but genes do not create mutations.

Hence, the correct answer is a mutation changes the sequence of DNA bases of a gene which is in option A as gene is a specific segment of DNA that contains the instructions for making a specific protein. 

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Answer:

B.

Explanation:

In spring and summer where storms are more present and frequent. During summer, there is more moisture in the air (since more water evaporates during summers heat), an important ingredient for storm-formation.

Hope it helped,

BiologiaMagister

The man's heart valves are damaged, which increases the risk of the circulatory system becoming obstructed, slowed down, or stopping since the blood is less likely to reach the heart to also be cleaned and pumped back out into the body than it once was.

A human or other vertebrate's complete body is circulated by a system of organs called the blood circulatory system, which includes the heart, blood arteries, and blood itself. It contains the heart and blood vessels-based cardiovascular system, often known as the vascular system.

Via a system of arteries and veins, the heart circulates blood throughout the body (blood vessels). The cardiovascular system is another name for the circulatory system. Vascular relates to blood vessels, while cardio is the word for the heart. All of the body's tissues receive blood from the circulatory system so they can work.

Thus, the man's heart valves are damaged, which increases the risk of the circulatory system becoming obstructed, slowed down, or stopping since the blood is less likely to reach the heart to also be cleaned and pumped back out into the body than it once was.

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Radio telescope picks up the radio spectrum of electromagnetic waves from celestial bodies (just like telescopes like the Hubble pick up visible light – only that radio waves are invisible to our eyes). They are therefore used to detect objects in space that produces radio waves. Examples are quasars and pulsars. Radio telescopes also enable astronomers to be whats beyond gas and dust in space that blocks out most of the visible light spectrum.

Answer:

Radio waves from space are sensed by a giant parabolic reflector which concentrates them toward the top of a focusing antenna. A radio receptor converts the radio waves into electrical signals which are amplified and then transmitted to the center of the parabola. They are then recorded and analyzed in the laboratory so that scientists can obtain a radio image of the source observed. The parabolic antenna can usually be oriented to detect radio waves from all directions of space.

Cell division without differentiation results in genetically identical cells without the acquisition of distinct functions. This occurs in early development but is insufficient for the growth and complexity needed in mature organisms. Differentiation is vital for cells to perform specialized roles within an organism.

The result of cell division without differentiation leads to the production of multiple cells that are genetically identical to the original cell and to each other. In the context of development, cell division without differentiation occurs during the early stages when a fertilized egg divides to form a multicellular organism of the same size as the original cell. This is because the original cell contains ample 'materials' for creating daughter cells without the need for growth. However, for further development, growth is essential as it allows for the accumulation of materials necessary for continued cell division. In more mature organisms, such as most plants and animals, cell division through mitosis results in differentiated cells that adopt specific functions within the organism.

During mitosis, a single cell goes through phases - prophase, metaphase, anaphase, and telophase, which are stages of division that end in cytokinesis. This leads to two identical daughter cells. However, differentiation is fundamental for the development of complex organisms from a fertilized egg to various specialized cell types, such as nerve cells, muscle cells, and epithelial cells. Without differentiation, the cells cannot perform distinct functions necessary for the organism’s survival.

Additional complexity in cell division includes the role of stem cells, which can divide indefinitely and, under specific conditions, differentiate into specialized cells. This shows the importance of both cell division and differentiation in the growth and development of multicellular organisms.

The two principal sources of thermal energy in Earth's interior are radioactive decay of certain isotopes and residual heat left from Earth's formation. Both these sources help in keeping Earth's core extremely hot.

The Earth's interior retains a massive amount of thermal energy that originates from two main sources, namely radioactive decay and residual heat from the Earth's formation.

Radioactive decay occurs when unstable isotopes (such as 238 U and 40 K) break down, releasing energy in the form of heat. Given the vast number of radioactive nuclei present within the Earth, this decay significantly contributes to the planet's internal energy.

The second source, residual heat, is left over from the Earth's formation approximately 4.5 billion years ago. This heat resulted from the conversion of kinetic and potential energy into thermal energy during Earth's initial formation process.

Both these sources contribute to keeping the Earth's core very hot - a reality that challenges traditional understanding of heat transfer, as our planet's interior has remained molten over a significantly long period.

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The two primary sources of thermal energy in Earth's interior are the residual heat from the planet's formation and the heat produced by the decay of radioactive elements like uranium-238 and potassium-40. This thermal energy is then transferred to Earth's surface mostly through convection.

The Earth's interior contains a substantial amount of heat, or thermal energy. The two primary sources of this heat are from 1) the residual heat from the planet's formation and 2) heat produced by the decay of radioactive elements.

When the Earth was in the process of forming, approximately 4.5 billion years ago, kinetic energy from colliding particles was converted into heat. While most of this original heat energy has since been lost to space, a significant portion remains in the planet's interior. This is known as the residual heat.

The second major source of heat in the Earth's interior is due to the decay of radioactive elements like uranium-238 and potassium-40. As these elements break down, or decay, they release heat. Given the extensive length of these elements' half-lives, this process continues to generate a significant amount of heat within the Earth's interior.

The thermal energy generated from these sources is then transferred to the Earth's surface mainly through convection, a process by which warmer, less dense materials rise and cooler, denser materials sink. This process can be seen in the movement of tectonic plates and volcanic activity.

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All plants need certain living conditions to prosper, so depending on what kind of conditions there are, depends on what kind of plant species will be in that area. The most important limiting factors for the plant species are the sunlight, temperature, water, and soil. If there are high temperatures, high amounts of precipitation, and lot of sunlight, we can expect tropical species of plants. If there are moderate amounts of precipitation, less intense sunlight, change of seasons, then it is the temperate species of plants that can be expected. If we have low and weak amount of sunlight, very low temperatures, and very low precipitation, then it will plant species of the tundra type that can be expected.

The correct answer is option C, that is, use a fan instead of air conditioning.  

The greenhouse gases like methane, carbon dioxide, and ozone contribute to ozone depletion, pollution, and global warming. The carbon footprint of humans signifies towards the net amount of greenhouse gases generated by them or by the things used by them, of the things fossil fuels being a prime contributor.  

The things like heating, driving a car, and cooling, and using electrical power from coal and gas discharge carbon dioxide, and enhances the concentration of greenhouse gases in the atmosphere.  

In order to reduce carbon footprint, one can use a fan in place of the air conditioner, as ACs emits chlorofluorocarbons, which can further aggravate the situation of greenhouse gases and can donate more to ozone layer depletion.  

The importance of mitosis in the root tip is that it helps the growth of the root; as a result, the root can grow more and absorb more nutrients from the soil, which helps the plant grow further.

Mitosis is a process in which the cell divides equally and both the parent cell and the daughter cell look alike. In this process, the plant root grows during mitosis, the old cell is replaced by the new cell, the cut is filled, and so on.

The mitosis completes in five steps, such as the prophase, metaphase, anaphase, telophase, and cytokinesis, where the cell faces many changes, such as the nuclear envelope dissociating and the cytoplasm of the cell dividing. The mitosis is the result of the body size growth that is seen in the child, and this is the result of the mitogens.

Hence, the importance of mitosis in the root tip is that it helps the growth of the root; as a result, the root can grow more and absorb more nutrients from the soil.

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