Nature has ways of keeping the nitrogen,
carbon, and phosphorus cycles in balance.
However, run-off from animal operations and
fertilizers in our waterways can result in
A. cultural eutrophication
B. erosion
C. cleaner drinking water
D. an increase in water temperature

The statement that best describes a difference between a scientist and an engineer is a scientist would ask, "Why does this happen?" while an engineer would ask, "How can I make this work?"

Scientist indulge in research to know the process behind the things that are happening in either living or non-living matters. They focus mostly to the understand the mechanism so that they could provide a solution. On the other hand, Engineer indulges in making a product based on the recordings from research or it can be novel.

Scientist and engineer can get their inspiration from both nature and human-made things as it is not restrained. It’s not something that can be separated.

An Engineer is focused on meeting the needs of people, while a scientist is concerned with the pursuit of knowledge. But we can’t be certain as knowledge is required for the development. Both are inter-related.

A scientist and an engineer may follow a series of steps or solves problems without a process based on the requirement.

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A slightly positive charge on hydrogen and a slightly negative charge on oxygen, contributing to the properties of water of attraction.

Polarity Of Water:

The one oxygen atom and the two hydrogen atoms which are present in a water molecule "H2O" form a polar covalent bond. There is no net charge on water molecule, the polarity of water molecule creates a partial positive charge on Hydrogen and partial negative charge on Oxygen which helps for contributing the attraction force.

Electronegativity Of Water:

A water molecule consists of two atoms of hydrogen linked by covalent bonds to the same atom of oxygen. Atoms of oxygen are electronegative and attract the shared electrons in their covalent bonds.

So we can conclude that a slightly positive charge on hydrogen and a slightly negative charge on oxygen, contributing to water's properties of attraction.

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In lab experiments where researchers are collecting data on hallucinations drugs, they are most likely stimulating the overactivation of melatonin.

What is melatonin?

Your body produces melatonin, a hormone that affects sleep. Melatonin is produced and released by the brain according to the time of day, rising in the dark and falling in the light. With age, melatonin production decreases.

In the form of an oral tablet or capsule, melatonin is also offered as a dietary supplement. The majority of melatonin supplements are created in a lab. Melatonin is frequently used by people to treat sleep disorders like jet lag and insomnia.

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Answer: Pasteur discovered Pasteurization, meaning without his discovery, today, we would not have easy access to long lasting milk. His discoveries also help scientists with vaccines.

Explanation:

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

Kilogram or Kg is a measurement of Mass.

A physical body's overall composition is measured by its mass. It also measures the body's inertia, or resistance to acceleration in the presence of a net force. The mass of a thing also affects how strongly it attracts other bodies through gravity.

In the SI, the kilogram serves as the basic mass unit (kg). Mass is not the same as weight in physics, despite the fact that weight is commonly determined to use a spring balance instead of a balancing scale and compared directly with known masses.

An object may weigh less than it does on Earth while retaining the same mass due to the reduced gravity on the Moon. This is true because weight is a force, whereas mass is a property.

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Answer:

the transport of a solvent through a semipermeable membrane that separates two solutions of differing solute concentration.

Explanation:

hope this helps

Answer: when water moves from an area of LOW solute concentration (low osmolarity) to an area of HIGH solute concentration (high osmolarity) through a semipermeable membrane.

Explanation: In biology, osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell's partially permeable membrane.

Answer:B. Increases, different

Explanation:

If the change in composition takes place then it is chemical change, and if the composition is not changes then it is physical change.

What is physical change?

Physical alterations are those that change the form but not the chemical composition of a thing. Physical changes can be used to separate mixtures into their constituent compounds, although they typically cannot separate compounds into chemical components or smaller molecules.

The composition must not be changed by physical adjustments; only the display must change.

Chemical alteration from the original components causes one or more compounds to totally change in composition.

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One of the main reasons that the American diet is unbalanced is because of their high consumption of preserved or canned food and a diet that is rich in fats and calories.

Hence, the American diet is unbalanced because of their consumption of processed food.

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Question is incomplete;

The FALSE statement about properties of Life is:

All organisms have the ability to maintain a constant internal temperature.

The claim that all living things have the capacity to maintain a constant internal temperature is FALSE

Different stimuli, such as light, heat, mechanical contact, etc., can cause an organism to react.

Energy is needed by organisms to carry out their metabolic processes (e.g., growth, differentiation, reproduction, etc)

Animals with cold blood, or poikilotherms, are unable to maintain a consistent body temperature regardless of the outside temperature.

Fish, insects, worms, amphibians, and reptiles are examples of poikilothermic animals.

The ability of all creatures to keep a constant internal temperature is, therefore, a FALSE assertion

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Answer:

Hypotheses are so important to controlled experiments because they are testable explanations for a set of observations.

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The control is the source of the water.

The control of an experiment is the factor that must be held constant in order for the experiment to be reliable. If these factors are not held constant, then the experimental results are not reliable.

In this case, we are measuring the effect of addition of salt to the density of water. We have to ensure that the water is all taken from the same source so that we can be sure that the density is only affected by the addition of the salt and not other extraneous factors.

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The greatest competition would most likely occur if grasshoppers and impalas were decreased. Thus, the correct option is B.

Competition occurs between different species when individuals of different species struggle to obtain the same resource in an ecosystem such as food or space. Adaptations are the physical and behavior modifications which can help an organism outcompete its competitors.

Impalas are the medium-sized antelopes that roam the savanna and light woodlands of eastern and southern Africa. They are similar to grasshoppers. A decrease in the organisms of grasshoppers and impalas may result into greatest competition in the food web.

Therefore, the correct option is B.

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Answer:

There are two main ways in which antibiotics target bacteria. They either prevent the reproduction of bacteria, or they kill the bacteria, for example by stopping the mechanism responsible for building their cell walls.

Answer:

Antibiotics can kill bacteria by:

1. Preventing the production of peptidoglycan that forms the cell wall. The cell will continue to grow without developing new cell wall, this causes the already existing cell wall to get weaker which will eventually cause the cell to rupture.

2. Stopping the production of proteins (protein synthesis) which prevents the production of new DNA

The sheep carrying out respiration is the correct answer.

Therefore, option A. is correct.

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True, Enzymes can be used over and over in a reaction. They are not used up.

Enzymes only catalyze the chemical reaction in forward or backward direction

Enzymes may be utilized again to speed up the same process since they don't become damaged or depleted during the reactions they catalyze. Enzymes are incredibly efficient because each one is very specialized for the chemical process it catalyzes.

A biological catalyst called an enzyme is usually always a protein. It accelerates a certain chemical process in the cell.

The Enzyme efficiency increase with increase in temperature, but at a certain point it start declining it's activity with increase in temperature which ultimately cause the denaturation of enzyme.

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Answer: Wood and leaves decays bringing the carbon into the ground.

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Answer:

I want to say C. Prokaryotic cells

Explanation:

I could be wrong

Answer:

The answer is A it is a statement of fact

Explanation:

Law is something that is universal at all times every where thats why it can be referred to as universal law.

Answer:

For natural selection to work there must be variation in the population for it to act upon and so ‘choose’ the most fit genes for a particular situation. Populations tend to produce more offspring than the environment can support, and the inevitable consequence of this overproduction of offspring is a struggle for survival. Natural selection creates these selection pressures so the organisims best suited for the environment are more likley to survive and therefore pass on their genes to their offspring.

Natural selection can only happen in a population rather than an individual becasue it is the whole population's characteristics culmalitvley changing to better suit the environment. By passing down favourable traits to their offspring. It cannot happen in an individual because they cannot change their traits to better suit the environment, only pass on their traits to their offspring. A change due to natural selection can take generations

There were many impacts of green revolution which was affected our society and these were there was increase in area of farming because the main aim of green revolution was to increase the productivity of the crop.

A revolution was started worldwide and the main objective of the revolution was to grow crops as much as possible and this revolution was for large production of crop than on this basis its name was decided and the name of the revolution was green revolution.

In India a great geneticist M.S. Swaminathan has started green revolution and it was started near about 1960 and this has changed the scenario and due to this revolution production of crops increased.

Therefore, There were many impacts of green revolution which was affected our society and these were there was increase in area of farming because the main aim of green revolution was to increase the productivity of the crop.

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The Crawfish is 400 times larger than the human oocyte.

It should be noted that the radius is given as 1mm.

The surface area is also illustrated as 4πr². The surface area will then be:

= 4 × 3.14 × (1)²

= 4 × 3.14 × 1

= 12.56mm²

The radius of human = 0.05m

The surface area is also illustrated as 4πr². The surface area will then be:

= 4 × 3.14 × (0.05)²

= 4 × 3.14 × 0.0025

= 0.0314mm²

The ratio will be:

= Crawfish / Human

= 12.56 / 0.0314

= 400

In conclusion, the crawfish is 400 times larger than the human oocyte.

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In the student's experiment;

The control group in an experiment is the group which does not receive the treatment that the researcher wishes to determine its effect on a group in the experiment. The control group may receive he standard treatment.

The experimental group in an experiment is the group which receives the treatment that the researcher wishes to determine its effect on a group in the experiment.

In the experiment;

In conclusion, an experiment has a control and experimental group.

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The coarse focus knob on the SI V-Scope lowers and raises the microscope stage and uses power to focus.

The coarse focus knob on most microscopes is located around the bottom center part of the arm of the microscope as illustrated in the image below. The larger of the two knobs and one that is closest to the microscope's arm is the coarse adjustment knob.

Only the lowest power objective lens should be used with the coarse focus knob. You will only need to utilize the fine focus once it is in focus. With higher lenses, using the coarse focus could cause the lens to fall into the slide.

Focus (coarse), The coarse focus knob is used to roughly or almost focus the specimen. Focus (fine), After bringing the image into focus with the coarse focus knob, use the fine focus knob to make it more sharply focused.

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Answer:

down below

Explanation:

A model is a smaller representation of a phenomenon in our universe.

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A chloroplast, are you? Because of you, my brain is full of chlorophyll.

Photosynthesis, the process by which light energy is transformed into chemical energy and results in the generation of oxygen and energy-rich organic compounds, takes place in the chloroplast, a structure found inside the cells of plants and green algae. Close cousins of chloroplasts that are free-living are photosynthetic cyanobacteria; according to the endosymbiotic theory, these organisms are the ancestors of both chloroplasts and mitochondria, which are eukaryotic cells' energy-producing organelles.

The chloroplast genome is typically 120–200 kilobases long and circular (although linear variants have also been seen). A growing number of chloroplast genes have been transferred to the genome in the cell nucleus over the course of evolution, significantly shrinking the size of the contemporary chloroplast genome. As a result, nuclear DNA-encoded proteins are now required for the proper operation of chloroplasts.

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Answer: If a rabbit lives in a temperate forest an adaptation would be the ability to change color when snow falls.

Explanation:

If a rabbit lives in a temperate forest an adaptation would be the ability to change color when snow falls.

The Habitat change can change the affect the heredity of the population by increasing the isolation and decreasing the effective of the population size. The Given statement has been related to the environment and heredity connection.

As per the question the rabbits lived in a forest habitat have varied coat colors such as brown, white and black. When habitat changed from forest to snow, the coat color which best suited for rabbits is Color White.

Temperature has a factor that alters the characteristics of the animals in terms of the movements and others. Rabbits that live in the temperate forests usually live underground to minimize exposure to harsh sun. This changes the way they acquire food, mate and live in general.

Therefore, option B is correct.

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