please help answer the 3 questions

Answer: Here are a few examples of classification:

Explanation:

Organizing a library's books by genre (e.g. fiction, non-fiction, children's books, etc.)

Sorting clothing items by size (e.g. small, medium, large)

Grouping types of food based on their ingredients or cooking methods (e.g. vegetarian, vegan, gluten-free)

Answer: c

Explanation:

a is mitochondria which is part of the cell

b is the cell itself

c is the virus

d is a nerve

If Cystic fibrosis is the result of deletion mutations that are inherited from both parents, then the sample chromosome that shows an example of a deletion mutation is  B. RSTUV-XYZ ----> STUV-XY.

A deletion genetic mutation can be defined as an alteration in the genetic material of the cell of an individual associated with the loss of one or more nucleotides in the original sequence.

Therefore, with this data, we can see that a deletion genetic mutation is caused by the loss of nucleotides in the DNA.

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Answer:

Yes, working from home will have a future impact on urban sprawl. Working from home reduces the need for people to commute to their workplace, which in turn reduces the demand for housing in urban areas. This can lead to a decrease in urban sprawl, as fewer people are commuting to urban areas and thus fewer people are in need of housing. Additionally, with fewer people commuting to urban areas, there will be less traffic congestion, leading to a reduction in air pollution.

Explanation:

Carps, tilapia, catfish, and milkfish are particularly significant as protein sources for low-income families in developing nations. Freshwater finfish and tiny marine finfish species from the catch fisheries are also essential.

Pisciculture is the proper response. Pisciculture is the practice of rearing fish in ponds or tanks for human consumption. Tilapia, salmon, carp, and catfish are the most significant species that are raised on a global scale.

Long-chain omega-3 fatty acids, iodine, vitamin D, and calcium are just a few of the vital nutrients that can only be found in fish. Fish, one of the most significant sources of proteins and micronutrients, could be a powerful tool in the fight against malnutrition in India.

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Two organelles that are required to make the process of the deer obtaining energy from sugar molecules in the leaf possible are the mitochondria and the chloroplasts.

Mitochondria are organelles found in the cytoplasm of eukaryotic cells and are responsible for generating the majority of the cell's energy. They do this through a process called cellular respiration, in which sugar molecules are broken down and the energy released is used to produce molecules of adenosine triphosphate (ATP), which the cell can then use as a source of energy.

Chloroplasts are organelles found in the cells of plants, algae and some other organisms that absorb light energy and convert it into chemical energy. They are only found in the cells that have green pigments called chlorophyll. Chloroplasts are the site of photosynthesis, the process by which plants and other organisms convert light energy into chemical energy by using carbon dioxide and water to produce glucose and oxygen.

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Two organelles that are required to make the process of the deer obtaining energy from sugar molecules in the leaf possible are the mitochondria and the chloroplasts.

The majority of the energy produced by eukaryotic cells is produced by mitochondria, which are organelles that can be found in the cytoplasm of these cells.

Through a process known as cellular respiration, sugar molecules are broken down and the energy released is used to form molecules of adenosine triphosphate (ATP), which the cell can then use as a source of energy.

In the cells of plants, algae, and certain other species, there are organelles called chloroplasts that collect light energy and transform it into chemical energy.

Therefore, Two organelles that are required to make the process of the deer obtaining energy from sugar molecules in the leaf possible are the mitochondria and the chloroplasts.

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Answer:

A

Explanation:

Cell theory was first formulated by Schwann and Schleiden, but because of new and advanced technology some statements were replaced and some are added.

Answer:

Bilateral symmetry is a type of body plan in which the left and right sides of the body are mirror images of each other. This type of body plan lends itself to special divisions such as head, thorax, and abdomen. Examples of animals that are bilaterally symmetrical include humans, fish, frogs, butterflies, and worms.

Explanation:

Answer:

Explanation:

d

Answer: Carbon dioxide

Explanation:Because,Carbon dioxide from the burning of fossil fuels is the largest single source of greenhouse gas emissions from human activities.

Answer:

C. If they have not been fed properly...

Explanation:

If they have not been fed properly, sheep will eat bitterweed. This fact would support the veterinarian's theory that the sheep have eaten the poisonous scrub, as it suggests that the sheep may have turned to eating the bitterweed due to hunger or malnutrition.

True. The speed at which sound travels through a medium is determined by the properties of that medium.

What do you mean by sound?

Sound is a type of energy made by vibrations that travel through the air or another medium, like water. It is sensed by our ears and interpreted by our brains. Sound is made up of waves that have different frequencies, which determine the pitch and loudness of a sound.

Factors such as temperature, pressure, composition, and density can all affect the speed of sound in the medium. For example, sound travels faster through warmer air than through colder air, and faster through denser materials than through less dense materials.

Hence, the statement is True.

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Complete question:

The state of a medium helps determine the speed of sound passing through medium.

State True or False.

Answer: Dark Reaction

Explanation: Its the second stage of photosynthesis and it does not require light.

Answer:

a chrosome is made up of proteins and DNA organized into genes each cell normally contains 23 pairs of chrosomes.

Chromosomes are structures formed by a DNA molecule associated with protein molecules. In prokaryotic cells, we observe a circular chromosome; in eukaryotes, chromosomes are linear and located inside the nucleus.

Answer:

B) Production of complex molecules from simpler ones.

Explanation:

Synthesis is the process of combining simpler molecules to form more complex ones. This can occur through various chemical reactions within an organism. The other choices do not accurately describe the process of synthesis.

A) Distribution of essential compounds throughout an organism - This refers to the transport of essential molecules within an organism, rather than the production of complex molecules from simpler ones.

C) Elimination of waste products from the organism - This refers to the removal of waste products, rather than the production of complex molecules.

D) Regulation of physiological activities - This refers to the control of physiological processes, rather than the production of complex molecules.

About 80% of the population can determine their blood type from saliva, tears, sweat or milk. These are known as secretors, and they refer to the fact that antigens present in the blood can also be found in bodily fluids like saliva.

Your immune system uses antigens as markers to determine whether or not something in your body is hazardous. Viruses, bacteria, cancers, and healthy bodily cells all include antigens. Antigen testing is carried out to identify viral infections, keep an eye on specific illnesses, screen for them, and ascertain a donor's compatibility with a transplant.

The term "secretor status" describes whether water-soluble ABO blood group antigens are present or absent in a person's body fluids, including saliva, tears, breast milk, urine, and semen. People are classified as secretors or non-secretors depending on whether they secrete certain antigens in their body fluids.

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Answer:

d. Analogous structures is not a good method in examining fossils anatomical features of living organisms.

Explanation:

Analogous structures are physical characteristics that are similar in different organisms due to convergent evolution, rather than being inherited from a common ancestor. While analogous structures can provide valuable information about the environment and adaptations of living organisms, they are not helpful in examining the fossils of ancient organisms because they do not reflect the evolutionary relationships between different species. Homologous structures, vestigial structures, and index fossils are all useful methods in examining fossil anatomy, as they can provide insights into the evolutionary relationships and characteristics of ancient organisms.

Prokaryotes are less complex than eukaryotes and lack a nucleus. They also contain a flagellum outside of their cell.

Where does the DNA of prokaryotes reside?

Prokaryotes have a nucleoid in the center of the cell that houses the DNA but is not protected by a nuclear membrane. In addition to chromosomal DNA, many prokaryotes also possess smaller, circular DNA molecules known as plasmids, which can provide genetic benefits in particular situations.

Do prokaryotic chromosomes exist?

Prokaryotic cells lack a membrane-bound nucleus, in contrast to eukaryotic cells. Instead, the nucleoid, a part of the cytoplasm, is where their genetic material is located. Typically, a prokaryotic cell contains just one circular, coiled chromosome.

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The characteristics of life are complexity, ordered organization, energy use and transformation, and regulation of internal conditions. and all of the statements about life forms are correct.

There are both eukaryotic and prokaryotic life forms, as well as unicellular and multicellular animals, but all life forms grow, take nutrients, adapt, and evolve; some can regulate their internal temperature, use energy, and transform it, such as in photosynthesis.

Hence, the characteristics of life are complexity, ordered organization, energy use and transformation, and regulation of internal conditions. and all of the statements about life forms are correct.

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The force or speed of a machine is multiplied by its mechanical advantage. It is a figure (without units) that indicates how many times the apparatus multiplies a force (or speed). I. M. A. An ideal machine's mechanical advantage is the optimal mechanical advantage. Thus option A is correct.

The ratio of load to effort is referred to as a machine's mechanical advantage. The efficiency of a machine is due to its mechanical advantage. Effort/Load = Mechanical Advantage. The mechanical advantage M A is equal to F 0 F I where F 0 is the output force and F I is the input force.

Therefore, multiplies the resistance force.

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Answer: Iron is both malleable and ductile .

Explanation:. (malleable) because it has the ability to be fold into any                shape of             material.

                 . and(ductile) because it is able to be deformed without losing toughness.

The velocity while Evan was pushing the cart is 50.15m/s.

The velocity of a moving body can be calculated using one of the following equations of motion as follows:

s = ut + ½at²

Where;

According to this question, Evan was 54 meters away from his car after shopping. It took 9 seconds to push a shopping card one third of the way directly to his car at a constant velocity. The velocity used is as follows:

54 = (u × 9) - ½ × 9.81 × 9²

54 = 9u - 397.31

54 - 397.31 = 9u

u = 50.15m/s

Therefore, 50.15m/s is the velocity while pushing the cart.

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Evan's velocity while pushing the cart towards his car would be  2 m/s.

The velocity of a moving object is the speed of the object in a specific direction. Thus, velocity is the ratio of distance covered relative to time.

Mathematically, velocity = distance/time.

Evans took a total of 9 seconds to cover 1/3 of his distance from his car.

1/3 of 54 = 18 meters.

Thus, Evan covered a distance of 18 meters in 9 seconds. His speed can be calculated as follows:

Distance = 18 meters

Time = 9 seconds

Speed = 18/9

             = 2 m/s

In other words, the velocity of Evan while he was pushing the cart is 2 m/s towards his car.

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6.The signal strength, or "loudness," of a signal over time at different frequencies contained in a specific waveform is visually represented in a spectrogram.

The signal strength, or "loudness," of a signal over time at different frequencies contained in a specific waveform is represented visually in a spectrogram. One can observe how energy levels change over time in addition to determining whether there is more or less energy, for instance, at 2 Hz vs. 10 Hz.

The vertical axis or y-axis of the spectrogram view shows frequency in Hertz, the horizontal axis or x-axis denotes time (exactly like in the waveform display), and brightness denotes amplitude. The sine wave is represented by the bright orange curve while the background is black, which represents silence.

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This information might be used to draw the conclusion that there will be fewer plankton in the region than is typical both as a carbon source and sink, hence B is the appropriate response to this question.

The kind of organisms that live in watery habitats are known as phytoplankton.

These species are autotrophic in nature and are the producers of this ecosystem. These creatures share a characteristic with terrestrial plants in that they both contain chlorophyll.

Therefore, if the phytoplankton population falls in the coming year, it means that the region's carbon supply and sink will be less than anticipated.

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Relation between variables are the different born percentages in sea turtles.

What percentage of sea turtles are female?

Green sea turtles from cooler southern nesting strands were about 65 to 69 percent lady, testing showed. Sea turtles from warmer northern strands leaned indeed more heavily womanish, with86.8 percent of adult turtles,99.8 percent of sub-adult turtles, and99.1 percent of juvenile turtles turning out to be womanish.

How long does it take for a sea turtle to incubate?

The incubation time for utmost species is 45 to 70 days. exploration indicates that the coitus of an embryo is dependent on the temperature of the nest. Lower nest temperatures produce further males; advanced temperatures produce further ladies. For green ocean turtles, a nest temperature of 28 °C(82 °F) or below produces substantially males.

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Tiktaalik, an extinct fish species, could have existed in a Canadian environment due to the presence of shallow freshwater environments with low oxygen levels, which would have been suitable for its lung-like structure and ability to breathe air.

Tiktaalik is an extinct genus of fish that lived about 385 million years ago during the Late Devonian period. It is considered a transitional fossil, as it has characteristics of both fish and early tetrapods, four-legged land-dwelling animals. Tiktaalik could have existed in a Canadian environment, as it is known to have been found in the Canadian Arctic, specifically in the Elpistostege watsoni fossil beds of the Nunavut territory.

The environment during Late Devonian period in this region was a shallow freshwater delta or coastal plain that was home to a diverse array of fish and other aquatic organisms. Tiktaalik likely lived in the shallow water, and had adaptations such as flexible neck and fins with bones that resemble the limb bones of four-legged animals, which would have allowed it to move in shallow water and on land.

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Answer:

When a person has been outside long enough for their core temperature to drop, their body will respond by shivering. Shivering is an involuntary muscle movement that helps to generate heat and raise the core body temperature back to a normal level. This is an important response as it helps to protect the body from hypothermia, a dangerous condition in which the body's core temperature is too low.

Explanation: