Friction is the force that one surface exerts on another when they rub together. Friction works in the direction opposite to the motion, causing the object to slow down. What is one way you could reduce the friction between two surfaces?

A.) Carpet the surfaces
B.) Put oil on the surfaces
C.) Put sand on the surfaces
D.) Allow one of the surfaces to rust

I believe the answer tis true. I think it's a solar panel.

the answer is A. They are used as fuel.

The answer is biomass.

Answer:

Biomass

Explanation:

There are two kinds of energy sources renewable and nonrenewable.

A renewable recourse is a resource that can be renewed. This means that it can replenish itself, before we can deplete it completely. A good example of a renewable energy source would be the sun.

A nonrenewable recourse is a resource that cannot replenish itself and can often, only be used once. A good example of a nonrenewable energy source is coal, because we cannot make more coal within our lifetime.

The answer is; Divergent boundary zone; volcanic activity; fissure zones

The mid-Atlantic ridge is a divergent boundary. Such a boundary, that majorly occurs in ocean beds, is exhibited by signs of ocean-floor spreading. As the two plates move away from each other, the magma from the mantle rises to fill the void. Mountain ranges form along the boundary due to the numerous fissures between the two plates.

Answer:

its a

Explanation:

Prey populations rapidly increase. This is followed by an increase in the predator population: As predators eat the prey, their population goes down because there is less to eat and the predator population also goes down.

Answer:

the answer to this is A.

Answer:

deep sea trench

Explanation:

Plant nutrition differs from human nutrition in the way that plants do photosynthesis and produce their food by themselves but on the other hand a human cannot make their food by themselves. They use plants and animals for their food. Plants make their nutrients by combining carbon dioxide (CO2) and water (H2O) to form organic matter glucose (food). While human nourishment is produced or developed by the active output of them from which they produce food.

The two parts of the mitochondria are the outer membrane (forming the boundary) and the inner membrane (folded to create cristae), with the inner membrane being crucial for energy production through the electron transport chain and ATP synthesis.

The two main parts of the mitochondria are the outer membrane and the inner membrane. The outer membrane forms the boundary of the mitochondrion and acts as a protective barrier. It contains porin proteins that allow the passage of small molecules. The inner membrane, on the other hand, is highly folded, forming structures called cristae that increase its surface area. This membrane plays a crucial role in energy production. It houses proteins and enzymes involved in the electron transport chain and ATP synthesis, which are key processes in cellular respiration.

The inner membrane is impermeable to most molecules and maintains an electrochemical gradient necessary for ATP production. Together, the outer and inner membranes of the mitochondria contribute to its function as the powerhouse of the cell, generating energy in the form of ATP.

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A mistletoe is a leathery-leaved parasitic plant that grows on apple. oak, and other broad leaf trees.

1. Air quality – The higher the population in a city the higher the chances of reduced air quality due to increase per capita emissions.

2. Water usage – The higher the population density in a city, the harder it is to supply adequate clean water to everybody and the water quality may begin to drop

3. Waste management- Pollution begins to become a problem when the population in a city goes beyond its carrying capacity.

4. Land use – Urban sprawl becomes a problem when a high proportion of the city’s population is squeezed in a small portions of land

Carrying capacity is the maximum sustainable population size that an environment can support without deterioration. In U.S. cities, signs of reaching this capacity include increased pollution, water shortages, and housing issues.

Carrying capacity is defined as the maximum number of individuals of a population that an environment can sustain indefinitely without environmental degradation. It involves a balance between the population size and the available resources such as food, habitat, water, and the ability of the environment to recycle waste and nutrients. Human carrying capacity, specifically, refers to how many people can be supported by the Earth's resources without causing harm to the ecosystem.

In urban areas of the U.S., indications that a city may be reaching its carrying capacity can include:

While technological advancements can alter carrying capacity over time by improving the efficiency of resource use, it remains a crucial concept for policy development aimed at sustainability.

I'd say flagella.

Hope you find it helpful!

It is called it's biomass.

Hope this helps!

Biomass refers to the total amount of organic matter present in any trophic level and plays a key role in energy transfer within an ecosystem.

The total amount of organic matter present in any trophic level is referred to as biomass. This is the total weight, at the time of measurement, of living or previously living organisms in a unit area within a given trophic level. For instance, in an ecosystem like the English Channel, the primary producers (such as plants) account for a biomass of 4 g/m², while the primary consumers (such as herbivores) exhibit a biomass of 21 g/m².

Biomass is a significant factor in the study of ecosystems and biogeochemical cycles as it helps determine the amount of energy that is transferred from one trophic level to the next. It is essential to understand that energy flows directionally through ecosystems, from primary producers up to apex consumers.

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Correct matching of invertebrates and its characteristics are as follows:

Sponges are animals which have many cell but no mouth, muscles , heart or brain. They are sessile and can not move from place to place like other animals do, filter feeding animals with an asymmetrical body plan.

Cnidarians are the animals with radial symmetry and stinging cnidocyte cells. These animals consists a special cell cnida which functions in preying catch and defense. example- jellyfish, anemone.

Flatworms are the worm like animal which do not consist a body cavity or coelom. example- fluke and tapeworms.

Roundworms or threadworms are segmented worms that can live in water or land. They consist a body cavity and internal organs. examples- pinworms and hookworms.

Mollusks are the animals which consist mentle, foot and and sometimes a shell. example- octopus, squids.

Echinoderms are the animals which have radial symmetry and an endoskeleton made out of calcareous plate. These animals live only in marine environment.These animals lack circulatory and excretory systems.

Arthopods are the animals with jointed legs and an exoskeleton made out of chitin. example- spiders, shrimps and crabs.

First is those with joined legs.

The second have a foot, and shells.

The third  are round-worms are segmented and have cavity.

Fourth have radial symmetry.

Fifth don't consist of body cavity

The sixth are unable to move from places.  

The seventh live in water environment.

The anthropoids are insects that have an exoskeleton and bilateral symmetry. They have no open circulatory system. The mollusks are snails, clams, and squids. They have bilateral symmetry.  The roundworms are heartworms and nematodes. They have a digestive system mouth and anus. The flatworms are tapeworms and most are parasitic are bilateral and are invertebrates.

Find out more information about the Arthropods.

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Transversal: A line that intersects two or more points at distinct points is called a transversal.

Answer:

Exocytosis

Explanation:

Cells must have ways of removing waste materials in order to maintain homeostasis. Smaller materials may pass out of the cell through diffusion or transport proteins. Very large molecules require the use of vesicles to help transport them through the membrane. Exocytosis is the process through which vesicles are used to pass large molecules out of a cell.

Exocytosis is a form of active transport because this process requires energy.

I ask for brainliest please

Ligaments are strips of tough, connective tissue that attaches one bone to another.

A fossil that shows evidence of a cuticle would be dated according to the theory of evolution to be about 450 million years old.

University degree in geology, earth sciences, paleontology, paleontology, or related disciplines. Knowledge of conducting field surveys under changing and sometimes extreme environmental and weather conditions. Ability to generate and investigate Earth's stratified cut samples using heavy equipment.

Paleontologists are scientists who study the history of life on Earth from fossils. Fossils are evidence of past life on Earth and can include those formed from animal bodies or their casts (body fossils). Trace fossils are another type of fossil.

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The fireman being pushed back by the hose when water is turned on is an example of Newton's third law of motion, where for every action there is an equal and opposite reaction. This can be seen in activities such as running, swimming, and car acceleration.

The scenario of a fireman feeling the hose push him backwards when he turns on the water exemplifies Newton's third law of motion. According to this law, for every action, there is an equal and opposite reaction. Here are some everyday applications of this principle:

In the case of the fireman, when the water rushes out of the hose in one direction, it applies a force on the fireman in the opposite direction. This reaction force is what pushes the fireman backwards.

The scenario describes Newton's Third Law of Motion: For every action, there is an equal and opposite reaction.

When the fireman turns on the water, the water rushes out of the hose in one direction, and the hose pushes back with equal force in the opposite direction, which the fireman feels as a backward push. Newton's Third Law explains the interaction of forces between two bodies: as the water is expelled forwards, the hose and the fireman are pushed backwards. This is a direct result of the conservation of momentum, where the momentum of the water flowing in one direction must be balanced by an equal momentum in the opposite direction, experienced by the hose and subsequently the fireman. This reactive force is why handling a high-pressure hose can be challenging and requires strength and stability.

P waves move faster through the upper mantle than the crust primarily because mantle rock is denser and more tightly compressed, and is usually more solid compared to the crust.

P waves, or primary waves, are the fastest seismic waves and can move through solid, liquid, and gaseous materials. They travel faster through the upper mantle than the crust due to a few key reasons. First, the mantle rock is generally denser and stronger than the crustal rock, which allows seismic waves to travel more swiftly. This is because seismic-wave velocities are related to how tightly compressed a rock is, and this compression increases with depth.

Another factor is the state of the rock phase. Seismic waves are slowed if there is any degree of melting in the rock, and since the upper mantle is typically more solid than the crust, which may contain more variations in composition and temperature, P waves can move through it more quickly. Furthermore, changes like the mineralogical transition at a depth of 660 km cause velocities to increase dramatically, indicating how different conditions in the mantle affect wave speeds.

for the first question:

Ocean currents act much like a conveyer belt. they transport warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. this, currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth's surface.

Rising sea surface temperatures affect the Great Ocean Conveyor by potentially slowing it down and thereby disrupting global climate regulation. Meanwhile, marine organisms could experience either positive or negative effects from climate change. While new habitats may emerge for some species, others could lose their existing habitats or experience increased competition.

Increasing sea surface temperature can significantly affect the Great Ocean Conveyor, a system of deep-ocean circulation driven by temperature and salinity. Warmer sea surface temperatures could potentially slow down this conveyor, as warming waters become less dense and less likely to sink, which disrupts the conveyor’s driving mechanism.

This is crucial as this ocean conveyor regulates our global climate system by transporting heat around the planet. It plays a significant role in mitigating or exacerbating climate change.

Climate change, escalating through the increase of sea surface temperatures, affects marine organisms both positively and negatively. Some species might find semi-tropical conditions expanding, providing them with new habitats and food sources. However, other species might lose suitable habitats, experience increased competition, or see their food sources dwindle due to rising sea temperatures and acidification.

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Answer:Ion

Explanation:

A charged atom that has lost or gained electrons is called an ion. Atoms that lose electrons become positively charged ions (cations), while atoms that gain electrons become negatively charged ions (anions).

A charged atom that has lost or gained electrons is called an ion. When an atom has an unequal number of positively charged protons and negatively charged electrons, it results in an electrically charged atom, or an ion. This can occur when atoms gain or lose electrons.

Atoms that lose electrons form positively charged ions, known as cations. For instance, a sodium atom that loses one electron becomes a cation with a 1+ charge. Conversely, atoms that gain electrons form negatively charged ions, referred to as anions. For example, an oxygen atom gaining two electrons becomes an anion with a 2- charge.

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Answer: The bottom is the right one.

The troposphere is what contains 80% of the mass of the atmosphere and is where all the weather stuff happens.

The answer is ATP                          

It make sthe cell function good and i got the asnwer wrong

The quantitative property required for routine work and function is called energy. Energy in the form of ATP must be provided to perform the process.

Adenosine triphosphate (ATP) is the major energy source that is essential for cellular activity and functions. It provides energy by transferring the phosphate molecule from its structure by the process of phosphorylation.

On the other hand, glucose is the carbohydrate source that enters the cell and undergoes various cycles to form ATP as the energy source. DNA and proteins are the hereditary and functional structures that do not provide energy to the cell.

Therefore, option A. ATP is the energy required by the repair, growth and development of the organism.

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Final answer:

ATP is the direct source of energy for cellular functions due to its role as an energy currency, powered by the metabolism of simple sugars like glucose. Starch, while a storage form of energy, is not directly used by cells for immediate energy needs and must first be converted to glucose.

Explanation:

The energy used to obtain, transfer, and transport materials within an organism comes directly from ATP (adenosine triphosphate). ATP is known as the energy currency of the cell because it acts as a direct source of energy for a myriad of cellular functions, including muscular contraction, synthesis of molecules, neurotransmission, signaling, thermoregulation, and subcellular movements. The formation of ATP from ADP (adenosine diphosphate) and an inorganic phosphate (Pi) is powered by the metabolism of glucose, fructose, or galactose, all of which are isomers with the chemical formula C6H12O6 but with different molecular configurations. This process links exergonic pathways of glucose catabolism—those that release energy—to the endergonic pathways—those that require energy and thus consume ATP.

While starch is a form of stored energy in plants and can be broken down to glucose molecules to eventually produce ATP, it itself is not directly used by cells for immediate energy requirements. Starch needs to undergo enzymatic hydrolysis to glucose, which then may enter cellular pathways to be metabolized into ATP, showcasing ATP’s role as the immediate source of energy rather than starch.

The functional unit of the kidney is nephron. Kidney comprises two kinds of nephrons, each situated in distinct sections of the renal cortex, that is, juxtamedullary nephrons and cortical nephrons. A nephron constitutes of a renal tubule, renal corpuscle, and the associated network of capillaries. The nephron is accountable for eradicating waste from the body.  

The functional unit of lungs is alveoli. They resemble a cluster of grapes, they are thin and possess moist walls. They are a single layer of cells enveloped by a layer of capillaries. The main function of the lungs is respiration. The alveoli help one to breathe, by conducting the process of gas exchange.  

The correct answer is : Mitosis, cell growth and differentiation.

Plants increase in height due to the activity of meristem or meristematic tissue. Meristems are tissues which have capacity to divide throughout their life. Meristems are located in the apical meristems, shoot apex and root apex. Meristems divide through mitosis. The daughter cells  enlarge, stretch and differentiate into other types of cells as they mature. This causes some plants to increase in height.

Final answer:

Some plants grow in height through mitosis, cell growth, and differentiation in the meristems. Mitosis provides new cells, which then enlarge and differentiate into specialized tissues, and this process contributes to the plant's overall growth.

Explanation:

Plant Growth and Development

Some plants increase in height due to changes in specialized regions of cells in the tips of their branches, primarily through processes such as mitosis, cell growth, and differentiation. Mitosis is the mechanism behind cell division in the meristems, which are areas of rapidly dividing unspecialized cells. This process produces new cells that can then grow in size and differentiate into specialized plant tissues like xylem and phloem. Cell growth often refers to the enlargement of the cell, particularly through the expansion of the vacuole. Differentiation is the process by which cells become specialized in structure and function to contribute to the various tissues in the plant.

Meristematic tissue plays a key role in plant growth. This tissue is composed of small, unspecialized cells that have the potential to divide and differentiate. Growing plants rely on the meristems for the continuous supply of new cells that will eventually expand and become specialized, pushing the plant upwards and increasing its overall size. The actual growth of plants generally occurs in areas adjacent to these meristems.

C is the correct answer they are asymmetrical.

Sponges, belonging to the phylum Porifera, don't have any particular symmetry. They do not exhibit radial or bilateral symmetry as seen in other animal phyla. Their body forms can vary widely.

The type of symmetry that sponges have is none. Symmetry in biological terms refers to the arrangement of body parts in relation to an axis or plane. The two types of symmetry common in animals are radial and bilateral, but these do not apply to sponges. Sponges, belonging to the phylum Porifera, do not have any particular symmetry, which means their forms can vary widely and lack a regular, mirrored arrangement of parts.

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Native gold is an element and a mineral

Short answer: Silver and Gold found in rock formations (mostly)

Water is a liquid solvent

Plant life has minerals in it, but plants are made mostly of organic cells.

Let's look at the definitions of each one. Then use the definitions to answer the question.

A. Diabetes: a disease in which the body’s ability to produce or respond to the hormone insulin is impaired, resulting in abnormal metabolism of carbohydrates and elevated levels of glucose in the blood and urine.

B. Sickle cell disease: a severe hereditary form of anemia in which a mutated form of hemoglobin distorts the red blood cells into a crescent shape at low oxygen levels. It is most common among those of African descent.

C. Down syndrome: a congenital disorder arising from a chromosome defect, causing intellectual impairment and physical abnormalities including short stature and a broad facial profile. It arises from a defect involving chromosome 21, usually an extra copy (trisomy-21).

D. Cancer: the disease caused by an uncontrolled division of abnormal cells in a part of the body.

a malignant growth or tumor resulting from the division of abnormal cells.

So your answer would be C. Cancer.

Hope this helped,

-Anime

Cancer hope this helps