What percentage of all water is fresh on earth?

i think it might be true because plants need soil and animals eat plants and humans eat animal and so on. so everything would relate back to the soil. so TRUE

molecules and gaseous

The diffusion rate across an exchange surface is dictated by the extent of the concentration gradient and the surface area and thickness of the plasma membrane. A higher concentration gradient and larger surface area promote rapid diffusion, whilst a thicker plasma membrane slows down diffusion.

Two properties of an exchange surface that would facilitate rapid diffusion rates are the extent of the concentration gradient and the surface area and thickness of the plasma membrane.

The extent of the concentration gradient is a key determinant of the diffusion rate. The greater the difference in concentration between two regions, the faster diffusion occurs. On the other hand, when the distribution of the material approaches equilibrium, the diffusion rate tends to decrease.

The surface area and thickness of the plasma membrane also affect the rate of diffusion. A larger surface area enables more materials to diffuse simultaneously across the membrane, thereby increasing the diffusion rate. Conversely, a thicker membrane inhibits the passage of materials, leading to a slower diffusion rate. This principle is applied in cells, where surface area-to-volume ratios are used to predict which cell(s) might eliminate wastes or procure nutrients faster by diffusion.

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Answer:

Nonrenewable (Give the other girl/guy/them the brainliest or likes or thanks)

Explanation:

A nonrenewable resource is a natural substance that is not replenished with the speed at which it is consumed. It is a finite resource. Fossil fuels such as oil, natural gas, and coal are examples of nonrenewable resources.

Answer:

Underground, plant roots look like a tangled web. roots hold soil in place and prevent water from washing it away.

the answer is A

Plant roots help prevent soil erosion by holding the soil and stabilizing it against the erosion flow.  Thus, the correct option is A.

Plants are very effective in reducing soil erosion by keeping the soil clumped together. This happens even when water is flowing over the soil or through it.

Plant roots also help the soil to regain its structure by allowing the exchange of nutrients and minerals.

The microbiota associated symbiotically with plant roots also help in maintaining the integrity of the soil. They add a strengthening texture to the soil.

Plant roots increase the amount of force needed to uproot the plant, as it is the root mainly involved in stabilizing the plant in the soil.

It has also been found that the fine hairs present on the roots also reduce soil loss by either holding the soil in place or by releasing materials that help reinforce soil.

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the answer is c. the air pressure is lower

the air pressure on mars is lower as there is little gas. Air is gas so with little gas you could expect the air pressure to be lower and less dense making it hard for us humans to breathe

plz vote my answer the brainiest, hope this helps!

Increasing the ability of technology, like microscopes, to see even smaller particles.

hope this helps :)

The answer you are looking for is genetic diversity

To survive environmental changes, a species' best strategies include having high genetic diversity, the capability for sexual reproduction, and phenotypic plasticity. Proactive conservation efforts are essential to prevent extinction, especially in climate-sensitive species.

The best strategy for a species to survive environmental changes involves high genetic diversity, the ability to reproduce sexually in case of asexually reproducing species, and phenotypic plasticity. Genetic diversity enhances a species' ability to adapt to new conditions, and sexual reproduction can introduce new gene combinations that may offer better survival strategies during rapid environmental shifts. Furthermore, phenotypic plasticity, the ability of an organism to change its phenotype in response to environmental changes, plays a crucial role in survival. For example, the crystalline iceplant adjusts its water needs based on environmental availability, which has allowed it to thrive in diverse environments globally.

Conservation strategies must be proactive, allowing species to adapt at their own pace to prevent extinction due to climate sensitivity. This may include ensuring unfragmented habitats to enable species to shift their ranges in response to climate change, as fragmented habitats can prevent migration to suitable areas, leading to potential extinction.

answer should be D run off

mark brainliest if correct !!

D. runoff is your answer Hope I helped you out

It would be D and this pic should help chu too

The answer would be D. Jupiter, Saturn, Uranus, then Neptune. It couldn't be C, as Pluto is not considered a planet anymore. B can be eliminated as Jupiter comes before Saturn, And A can be eliminated because it is listing the inner planets. Hope this helps :)

Answer:Hydroelectric power is not perfect, however, and does have some significant disadvantages: Hydropower is non-polluting, but does have environmental impacts. Hydropower facilities can affect land use, homes, and natural habitats in the dam area

Explanation:

Hydroelectric power is not perfect, however, and does have some significant disadvantages: Hydropower is non-polluting, but does have environmental impacts. Hydropower facilities can affect land use, homes, and natural habitats in the dam area

Final answer:

Hydropower, also known as hydroelectric power, is a clean and renewable source of energy that relies on the force of moving water to generate electricity. While it is reliable and flexible, there are also drawbacks such as its environmental impact, cost, and limited potential for expansion.

Explanation:

Hydropower, also known as hydroelectric power, is a type of renewable energy that relies on the force of moving water, typically from rivers or dams, to spin turbines and generate electricity. Like any source of energy, hydropower has both pros and cons.

Pros of Hydropower:

Cons of Hydropower:

Because  there are to many predators and they have no space to hide

Answer:

Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor.

Explanation:

A. advertisements can contain confusing, misleading information.

Commonly, you will see small words flash across the bottom of the screen, these words contain the truth of the statement. This means that the big, colorful words are only a partial truth to the reality of the sale. For example it could be a limited sale on a specific portion of a store like in a jeans section, but only certain brands of jeans will be on sale.

Answer:

a

Explanation:

Answer:The answer is c: Community mobilizations seek to engage members of a town and accept responsibility for their community.

Explanation: Community mobilizations seek to engage members of a town and accept responsibility for their community.

Community mobilization is referred to as process through which communities members engage in actions carried out by the community. This is a process through which community members carry out activities in the community on a participatory level to improve education, health and other conditions. Through this process, resources, needs ,community priorities and solution are identified.

To analyze the external anatomy of snails, we will divide their body into the shell and the soft body that holds it. The former is a solid spiral-shaped structure carried on the back, made of a single piece and consisting mostly of calcium carbonate. The central layer of the shell, called ostracism, has two layers of crystals of the same substance, calcium carbonate. The Hipostracum is below, and the most superficial layer is the periostracum, composed of a lot of proteins.

The shell of a land snail can be very different in size and shape depending on the species. Some of them are cone-shaped while others are round. However, all of them have a spiral design, caused by the way land snails produce and growth their shells.

This structure protects the snail from the environment and even from predators. It is made up of calcium carbonate which makes it strong and remains that way as long as the snail consumes food with calcium.

Its surface can show different colors with fringe designs, but they usually are brown or yellow. The shell protects the body and internal organs of the animal and has an opening to one side, usually the right.

The body plan and anatomy of a snail play key roles in its survival. The shell affords protection and moisture retention, a muscular foot allows for movement and burrowing, and specialized systems enable digestion, respiration, circulation, and navigation in its environment.

A snail's body plan and anatomy contributes to its survival in several ways, thereby performing essential functions. Most notably, the shell of the snail serves as a protective barrier, preventing predation and aiding in moisture retention, crucial for survival in a variety of habitats. The snail's muscular foot allows for locomotion and burrowing into substrate, for hiding or seeking food. The radula, a unique anatomical structure, enables the snail to scrape food particles off surfaces and into its mouth.

Additionally, snails possess a complex respiratory system adapted to their environment. Terrestrial snails, for instance, have a lung-like structure while aquatic ones have gills. Invertebrates like snails also have a simple circulatory system where the heart pumps blood directly to the body cavities without the need for a complex network of blood vessels like in vertebrates. Finally, the nervous system of snails, though simpler than vertebrates, is sufficient for the detection of light, touch, chemicals, balance, and even some can sense gravity which helps them in their interaction with the environment.

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The hard shell of the egg.

C the hard shell of the egg

Answer:

B

Explanation:

Gases slightly dissolve in water and are held loosely by weak inter-molecular forces. When the water gains temperatures, the kinetic energy of the water molecules including those of the gases increase. The dissolved gas molecules are therefore able to overcome the weak forces of attraction in the water and escape through the surface.

Dissolved oxygen levels in a lake usually decrease as the temperature increases. Warmer waters hold less oxygen than cooler waters. For instance, a decrease in dissolved oxygen could happen when lake water heats up during the summer.

In a lake ecosystem, there is a relationship between the temperature and levels of dissolved oxygen. Generally, the amount of dissolved oxygen in water decreases as the temperature increases. So, the correct answer would be 'B. As temperature increases, dissolved oxygen decreases.' Warmer waters hold less dissolved oxygen than cooler waters. This occurs because gas solubility is a function of temperature: The warmer the temperature, the less gas there will be dissolved, including oxygen.

For example, when the lake water gets heated up during the summer, dissolved oxygen levels may decrease.

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The reaction in which calcium carbonate produces calcium oxide and carbon dioxide is: CaCO3 = CaO + CO2. Thus, the third option is the right one.

The breaking down of calcium carbonate to calcium oxide and carbon dioxide is called DECOMPOSITION REACTION. A decomposition reaction is a type of reaction in which a single element is broken down into two or more elemental parts, which are less complex than the parent compound.There are three types of decomposition reaction, these are thermal, photo and electrolytic decomposition reactions.

dominant because if it wasm't 1 would come out short

Final answer:

The allele for tallness is dominant as it is expressed in the phenotype of all F1 offspring resulting from the cross between a purebred tall plant and a purebred short plant.

Explanation:

If a purebred tall plant is crossed with a purebred short plant and all the F1 offspring are tall, this indicates that the allele for tallness is dominant. This is because the tall characteristic is visible in the presence of both a tall allele and a short allele within the genotype of the offspring. From Mendel's work, we know that when describing genetic crosses, the dominant factor is represented with a capital letter (T for tall) and the recessive factor is represented by a lowercase letter (t for short). In this scenario, the plants with the genotype TT or Tt will be tall, and plants with the genotype tt will be short. Assuming the purebred tall parent had a genotype of TT and the purebred short plant had a genotype of tt, all the F1 offspring would have a genotype of Tt, expressing the tall phenotype because the dominant allele for tallness 'masks' the recessive short allele.

Answer:

A statement of purpose's goal is to convince someone that you should be admitted to the program or be awarded a position.

Explanation:

can u please mark me as brainliest

Answer:

to indicate what is expected to be accomplished in doing an experiment.

Explanation:

just took it trust me

Answer:

The ATP molecule store energy and releases it.

Explanation:

The ATP stands for adenosine triphosphate. The ATP provides energy in cellular processes of the body. The attachment of terminal phosphate group to molecule helps ATP molecule to store energy. The energy stored at one location is transferred to other cell. The transferred energy is released to perform biochemical reactions.

ATP, or Adenosine triphosphate, stores and releases energy that's essential for cellular processes, including muscle contraction. It stores energy in the bonds between its three phosphate groups. When these bonds are broken, energy is released, providing fuel for activities within the cell, like muscle contraction.

Adenosine triphosphate, more commonly known as ATP, plays an essential role in energy transfer within cells. ATP molecules are responsible for storing and releasing energy. This responsibility makes them absolutely critical for a multitude of cellular processes, including muscle contraction, hence why muscles cannot function without ATP.

ATP stores energy in the bonds between its three phosphate groups. When one of these bonds are broken, through a process called hydrolysis, energy is released. This released energy is then used to fuel various activities in the cell, including the contraction of muscles.

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What is a station model used to create?      

The correct answer is D. surface weather map        

Station models are illustrations that shows the weather occurring at a given reporting station. These are symbolic illustrations. These models were created to fit a number of weather elements into weather maps.    

Sugar is an organic molecule that consists of different atoms like carbon, hydrogen, and oxygen.

Therefore, sugar is an important backbone structure of amino acids and carbohydrates.

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Atoms in sugar molecules contain carbon, hydrogen, and oxygen, which are essential for forming amino acids and other macromolecules. Carbon's ability to form covalent bonds allows it to serve as the backbone for complex molecules like proteins.

In these biochemical transformations, dehydration reactions often occur, where water is removed to join smaller molecules into larger ones. This process is vital for forming large molecules like polysaccharides, nucleic acids (DNA and RNA), and proteins from their respective monomers—simple sugars, nucleotides, and amino acids.

Answer: A.4

Explanation:

The food web provided in the image, there are C.3 trophic levels. Therefore ,C.3 is correct .

Producer: Grass is the producer at the base of the food web, as it can produce its own food through photosynthesis.

Primary Consumer: Worms are the primary consumers, as they consume the producers (grass) directly.

Secondary Consumer: Spiders are the secondary consumers, as they consume the primary consumers (worms).

The robin is not part of the food web as it does not directly feed on the worms.

Trophic levels are the different feeding positions in a food chain or web. They are numbered starting with the producers at the bottom, then the primary consumers, then the secondary consumers, and so on.

The energy in the food web flows from the producers to the primary consumers to the secondary consumers.

At each level, some of the energy is lost as heat, so there is less energy available at each higher trophic level. This is why there are typically no more than four trophic levels in a food web.

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Answer 1:

A type of molecule that keeps everything in place.

Answer 2:

proteins

Answer:

The molcule that Keeps everything together. And different types of proteins

Hope this helped!!

∵·············Hi there··········∵

Human activity affects ecosystems in a wide variety of ways, but it primarily does so through agriculture, habitat destruction, water use and fishing. Whenever humans enter a habitat, they tend to reshape it to fit their own needs, destroying the resources that other animals use, which drives them out.  

Hope this helps!!:)

Pretty sure it’s weathering but not 100%

Answer:

infiltration

Explanation:

Chemical Reactions. There is your answer.

yes! They're also the only mammal that lays eggs.