why are scientific theories often so powerful?

Answers

Answer 1
Scientific theories are often so powerful because they have been tested several time by different peoples and they have been found to be true. A scientific theory is a well substantiated explanation for a specific phenomenon which has undergone many observations and experiments and has stand the test of time. Thus, scientific theories always have to be reckon with because they have been severally tested.

Related Questions

Biomes may be terrestrial aquatic or atmospheric true or false

Answers

Final answer:

The claim that biomes can be atmospheric is false. Biomes are exclusively terrestrial (land-based) or aquatic (water-based), influenced by climate and environmental factors respectively.

Explanation:

The statement that biomes may be terrestrial, aquatic, or atmospheric is false. Biomes are primarily divided into two categories: terrestrial and aquatic. Terrestrial biomes, such as tropical wet forests, savannas, and deserts, are characterized by distinct climates that support specific animal and plant life. On the other hand, aquatic biomes include both freshwater and marine environments, where factors such as salinity, availability of sunlight, and concentration of dissolved oxygen and nutrients influence the distribution of life.

When bacteria appear in tissues, a type of large cell engulfs and destroys them. which process are these ells using to engulf the bacteria.
a. exocytosis
b. acrive transport
c. pinocytosis
d. phagocytosis?

Answers

your answer is d. phagocytosis

In which biome do hardwood trees lose their leaves before the cold winter sets in?

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In A TEMPERATE DECIDUOUS FOREST, the hardwood trees lose their leaves before the cold winter sets in. A temperate deciduous forest (biome) has trees that shed their leaves. The trees change the color of their leaves during fall (autumn) and then finally shed them. The deciduous trees remain leafless in winters, thus, these remain dormant in this season.


The weight of a body minus the fat content is known as the ____.​

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The weight of a body minus the fat content is known as the lean body mass.

Identify the step in the phases leading to muscle fiber contraction indicated by "c."

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The chart or data needs to be shown to know where c is. In order to give the best response to this question, the data or the information that was given at the start of the question needs to be provided. Making the data attached would help us to make the best answer and not make an educated guess as this would be impossible.

Hat is atp? why is it an important product of cellular respiration?

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What is ATP? why is it an important product of cellular respiration? ATP is stored energy. ATP is an important part because it is the energy that living things that cant go through photosynthesis have to ingest in order to recieve energy

How geographic isolation and reproductive isolation results in speciation?

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Scientists think that geographic isolation is a common way for the process of speciation to begin: rivers change course, mountains rise, continents drift, organisms migrate, and what was once a continuous population is divided into two or more smaller populations.

Answer:

speciation

Explanation:

Which of the following instruments is used to measure air pressure? A. Anemometer B. Hygrometer C. Barometer D. Thermometer

Answers

The answer for this question would be Barometer or the third option.

Answer: C).

The answer is C. Barometer

A client receiving chemotherapy for cancer develops sores in the mouth and asks the nurse why this happened. what is the nurse's best response?

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When a client is having a chemotherapy for cancer and he or she develops sores in the mouth, and she inquires the nurse why this happened, the nurse's answer would say that it is due to the fact that the cells in the mouth are sensitive to the chemotherapy. The mouths’ epithelial cells, due to their high rate of cell turnover, become more sensitive. This is one of the effects of chemotherapy. In chemotherapy, the healthy cells in the lining of the mouth are also affected. Other side effects that are evident in the patient include soreness and ulceration of the mouth, mouth infections, dry mouth, taste changes, and bleeding gums. Aside from these effects, effects like fatigue, diarrhea, nausea and vomiting, blood disorders, sexual and reproductive issues, etc. can also be observed.

Final answer:

Chemotherapy drugs can interfere with the cell division of healthy cells in the mouth, leading to the development of sores called oral mucositis.

Explanation:

Chemotherapy is the treatment of cancer with drugs that can destroy cancer cells. However, these drugs also affect rapidly dividing healthy cells, such as the cells in the mouth, causing sores to develop. The sores in the mouth are known as oral mucositis, and they occur because the chemotherapy drugs interfere with the cell division of the mucosal cells in the mouth.

For example, one of the mechanisms of action for anticancer drugs is to decrease the growth rate of cancer cells by affecting the duplication of DNA or the separation of newly formed chromosomes. Unfortunately, this also affects the cells in the mouth, leading to the development of sores.

It is important for patients receiving chemotherapy to practice good oral hygiene and seek guidance from healthcare professionals on managing the side effects, including mouth sores.

Learn more about Chemotherapy side effects here:

https://brainly.com/question/37976600

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The sympathetic division is best defined as

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Any physical or psychological event that produces stress

Which statement is a hypothesis? Jada decides to investigate the effectiveness of hand sanitizers compared to soap. She says that hand sanitizers are as effective as soap in destroying bacteria. Many sanitizers have alcohol as their main component. She performs a study in which people use sanitizers for one week and then soap for another week. She then examines the bacterial count.

Answers

The hypothesis statement is "She says that hand sanitizers have alcohol as their main component."

Answer: Option (b) is the correct answer.

Explanation:

When on the basis of certain facts about the object or subject we provide an explanation which is not proved is known as hypothesis.

For example, Jada says that hand sanitizers are as effective as soap in destroying bacteria.

Since, it is not proved by her and this statement shows just an explanation which is not experimentally found.

Thus, we can conclude that the statement hand sanitizers are as effective as soap in destroying bacteria, is a hypothesis.

Because plants lie __________ the food chain they provide clues to animal and human life and reflect soil conditions and climate

Answers

They are the bottom of the food chain, as the first producers. Plants take the nutrients found in the soil and turn it into the energy that is later consumed by all the other levels of consumers in the food chain.

Because plants lie at the base of the food chain, they provide clues to animal and human life and reflect soil conditions and climate."

Plants are primary producers, meaning they are at the bottom, or base, of the food chain. They are the first organisms to convert the energy from sunlight into food through the process of photosynthesis. This foundational role in the food chain means that plants are essential for the survival of herbivores, which in turn are prey for carnivores and omnivores, including humans.

By being at the base, plants have a direct impact on the health and diversity of the ecosystem. They provide the necessary nutrients and energy for the organisms that consume them. Additionally, the types of plants that grow in a particular area, as well as their health and abundance, can indicate the quality of the soil and the local climate conditions. For example, certain plants may only thrive in specific types of soil or under particular climatic conditions.

Therefore, by studying plants, ecologists and other scientists can gain valuable insights into the overall well-being of an ecosystem, the potential impacts on animal life, and the environmental factors that shape the landscape. This information is crucial for conservation efforts, agricultural planning, and understanding the effects of climate change on natural habitats.

why is a pyramid of numbers not always a good example of the flow of energy through a food chain?

I really don't get this. Can anyone explain?

Answers

the pyramid of numbers only compares the number of organisms present in each trophic level at A PARTICULAR TIME. This pyramid can be inverted if organisms of one trophic lvl is parasitic on organisms of another trophic lvl. or when threre are many small organisms feeding of one trophic level feeding on a large organism of anoyher trophic lvl.
For eg. tree→aphid →protozoa, the pyramid of numbers is upside down
however pyramid of energy is always in a pyramid shaped as it compares the total energy in each trophic level OVER A PERIOD OF TIME. more energy is lost when we mive along a food chain hence the shape is ALWAYS pyramid.

Final answer:

A pyramid of numbers does not always represent the flow of energy accurately due to it displaying the quantity of organisms rather than the energy they contain. Energy pyramids are always upright because they adhere to the laws of thermodynamics, showcasing energy loss at each trophic level.

Explanation:

A pyramid of numbers is not always a good example of the flow of energy through a food chain because it reflects the number of individual organisms at each trophic level, not the energy contained within them. In a pyramid of numbers, a large organism, such as an oak tree, may be represented by a small number, giving the impression of little energy at the base of the food chain. However, it can sustain many smaller organisms like parasites and supports higher trophic levels.

Pyramids of energy are always upright, showing the decreasing energy available at each higher trophic level due to the loss of energy when it is transferred from one organism to another. This is due to the laws of thermodynamics, which state that energy cannot be created or destroyed but can change form. Since energy is lost as heat during transfer, less energy is available to organisms at higher trophic levels.

For example, an ecologist modeling the relationship between bird parasites, blue jays, and oak trees in a hectare could find that there may be many parasites supported by a few blue jays, which in turn depend on numerous oak trees. While this may create an inverted pyramid of numbers, it would not accurately reflect the flow of energy, as the oak trees have large energy reserves.

What is the optimal temperature (°c) for enzymes functioning in the human body?

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The answer is:  about " 37.5°C " .
________________________________________________
It's (37.5 oC) for the enzymes in human cells. so it's around human temperature.
Hope this helps!

If you want to make maple syrup, you have to extract sugary syrup from a stem tissue, so you would tap the _______ tissue.

Answers

"phloem"

Phloem is a living vascular plant tissue that transports the resulting sugar from photosynthesis to parts of the plant where there is a lower partial concentration of glucose. When tapping the phloem of a maple tree, we get maple syrup running from it, the sugary organic compound resultant from photosynthesis that's being transported through the plant.

What is polarity? what traits make water polar?

Answers

What makes molecules polar: an uneven distribution of electrons between the oxygen and hydrogen atoms.

- So, a water molecule is polar because there is an uneven distribution of electrons between the oxygen and hydrogen atoms.

- Water has a neutral charge.

- Because of their partial positive and negative charges, polar molecules, such as water, attract each other like magnets.

- The attraction between a hydrogen atom with a partial negative charge and another atom with a partial positive charge is called a hydrogen bond.

- Because water is a polar molecule, it is able to form multiple hydrogen bonds, which is why water has many special properties (hydrogen bonds are the strongest bonds that can form between molecules).

Hope this helps!

In the 1940s, proteins were thought to be the more likely molecules to house genetic information. what was the primary reason that dna was not originally believed to be the genetic material

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DNA was found to contain only four different chemical building blocks. 

What is the primary role of the respiratory system in living organisms?
a. to make carbon dioxide
b. to obtain oxygen
c. to use up nitrogen
d. to find hydroge?

Answers

 Respiratory system, the system in living organisms that takes up oxygen and discharges carbon dioxide in order to satisfy energy requirements. In the living organism, energy is liberated, along with carbon dioxide, through the oxidation of molecules containing carbon..

A client, hospitalized with active tuberculosis, is receiving antitubercular drug therapy. when it becomes apparent that the client is not responding to the medications, what condition will the primary health care provider identify as a possible cause?

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The correct answer is drug resistant tuberculosis. A form of tuberculosis (TB) is resistant to the two main anti-TB drugs isoniazid and rifampin. Some strains of the TB bacteria developed resistance to the standard drug regime and thus require additional drugs such as fluroquinolones. These secondary drugs are less effective at killing the mycobacterium that causes TB but remain a viable option.

Breathing deeply is up to ________ more times efficient as breathing shallow.

Answers

The answer would be Four.

Salivary __________ breaks the chemical bond between two glucose molecules; it breaks down the long polysaccharide starch molecule into smaller and smaller pieces until only glucose results.

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Salivary AMYLASE breaks the chemical bond between two glucose molecules. . .

One component of your eye is an important refractive (bending) surface, another component refracts and brings near objects into focus (accommodation). the second component is the:

Answers

That would be the lens

An organism acquires a mutation in the gene for pyruvate dehydrogenase that renders the protein unable to bind nadh. what is the most likely consequence of this mutation?

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The most likely consequence of the mutation is that ATP synthesis will proceed at a high rate even when the cell has an ample supply. In addition, enzyme is controlled by ATP levels since if ATP levels are high it is significant to openly prevent the reaction that obligates the substrate to glycolysis to permit the substrate to be obtainable for additional reactions ever since the cell has ample energy. 
The most likely consequence of this mutation, when an organism acquires a mutation in the gene for pyruvate dehydrogenase that renders the protein unable to bing nadh, is ATP synthesis will proceed at a high rate even when the cell has an ample supply.

Where do greenhouse effect come from

Answers

A major greenhouse gas is CO2 and nearly all CO2 gasses come from fossil fuels, except for methane gas and nitrous oxide which comes from waste and are GHGs (which shouldn't be discounted).

What is the main function of the nucleolus?
a. it produces cell adhesion proteins that are then exported to the cell membrane.
b. it is the site of photosynthesis in photosynthetic cells.
c. its function is not yet known.
d. it produces enzymes that are then exported to the lysosomes.
e. it is the site of ribosome-subunit synthesis?

Answers

E: It is the site of ribosome-subnit synthesis.
Hope this helps!

The process that uses energy to move molecules or ions across a concentration gradient from an area of lower concentration to an area of higher concentration is called

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 The process that uses energy to move molecules or ions across a concentration gradient from an area of lower concentration to an area of higher concentration is called diffusion

Which component of blood helps fight disease?

Answers

white blood cells fight disease

Which type of population distribution can help provide organisms with protection from predators?

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The type of population distribution that an organism or organisms that can use in protection from predators is the clumped distribution. The clumped distribution is a way of having to be in cluster or arrangement in cluster in which they are evenly space and distributed.

Final answer:

Clumped distribution provides protection from predators for prey animals through safety in numbers, shared food acquisition strategies, and shared knowledge of vital migration routes or breeding grounds.

Explanation:

The type of population distribution that can help provide organisms with protection from predators is known as clumped distribution. In a clumped distribution, organisms are clustered together in groups, which can be beneficial for prey animals in several ways:

Being a member of a larger group provides protection for each individual from predators due to the 'safety in numbers' effect, making it more difficult for a predator to single out an individual.

Prey animals rely on each other to acquire food, with group hunting strategies or shared food sources.

Clumped population distributions can ensure that there is always a member of the group who knows the migration route or breeding grounds, critical for the survival of species with such life patterns.

Patterns of population distribution also reflect important aspects of the biology of the species and affect the mathematical methods required to estimate population sizes, making them a key subject of study in Environmental Biology.

Sensations of body position, touch, skin temperature, and pain are referred to as ____.â

Answers

The answer is general senses. These are the senses which are professed by reason of the receptors distributed all over the body such as temperature, touch, and starvation, instead of knotted to a particular structure, like the special senses - sight or hearing.

The man whose brain injury sparked new interest in brain research was:

Answers

Hey, there! 

The man whose brain injury sparked new interest in brain research was: Phineas  Gage 

Good luck on your assignment and enjoy your day! 

~
[tex]MeIsKaitlyn:)[/tex]
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