What must happen for a hypothesis to become a theory?
A. It must be well-tested and have supported results every time.
B. All possible alternative hypotheses must be tested first.
C. A hypothesis must be published and tested by scientists for a decade before it is a theory.
D. A theory is developed only after a hypothesis has been refuted and changed.​

Answers

Answer 1

Answer:

A.it must be well-tested and have supported results every time

Answer 2

Answer:

Explanation:b


Related Questions

Which of the following is not a line of evolutionary evidence supported by empirical evidence?
a. How similar DNA is between organisms
b. The length of the organism’s life
c. Where fossils are found
d. How similar the organisms were as embryos

Answers

Answer:c where fossils are found

Explanation:

Where fossils are found  is not a line of evolutionary evidence supported by empirical evidence. Therefore, option C is correct.

What are fossils ?

Any surviving remains, impression, or evidence of a once-living thing from a previous geological epoch is referred to as a fossil. Examples include exoskeletons, bones, shells, animal or microbe imprints in stone, items preserved in amber, hair, petrified wood, and DNA traces. The fossil record is the collection of all fossils.

Shells, bones, animal or microbe imprints in stone, exoskeletons, items preserved in amber, petrified wood, coal, hair, oil, and DNA traces are a few examples of fossils.

The majority of fossils are created when a living thing (such as an animal or plant) dies and is swiftly buried by sediment (such as mud, sand or volcanic ash).

Thus, option C is correct.

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When you hear a phone number and write it down, your brain uses: ____
A. long-term memory.
B. eidetic memory.
C. flashbulb memory.
D. short-term memory.

Answers

Answer:

D. short-term memory.

Explanation:

When you hear a phone number and write it down, your brain uses short term memory.Short-term memory refers to the things that people are thinking about in the moment and that are available during a small period as it has a limit to what you can hold. According to this, when you hear a number and write it down your brain uses short-term memory because it is a recent event that you remember in the moment but that you will forget after a period of time.

estimate how many calories a
person burns from physical activity.

Answers

Answer:

For men: 66 + (6.2 x weight) + (12.7 x height) – (6.76 x age)

For women: 655.1 + (4.35 x weight) + (4.7 x height) – (4.7 x age)

Explanation:

Write an example of DNA before and after a point mutation

Answers

Answer:

An example of DNA is the chain of basic materials in the chromosomes of the human cell.

After mutation, the DNA sequence is changed.

DNA undergoes ____to produce_____.RNA undergoes____to produce_____

Answers

I am not really sure but you can get the answer from it :

They discovered a fundamental mechanism of how proteins protect chromosomes while DNA is being copied (a process called DNA replication), which relies on a protein called RPA. Cells have a limited amount of this protein, which they use as 'band aids' to protect the DNA temporarily during replication.

Creating RNA from DNA

Answers

Cells make RNA messages in a process similar to the replication of DNA. The DNA strands are pulled apart in the location of the gene to be transcribed, and enzymes create the messenger RNA from the sequence of DNA bases using the base pairing rules. 3. RNA molecules made in a cell are used in a variety of ways.

that's some cool stuffffp

A population of 250 birds inhabit the canopy of tropical rainforest that has a caring capacity of 400 birds. What is the maximum population growth if a population grows 283 in one year

Answers

Answer:

Explanation:

0.35

The maximum population growth if the population grows 283 in one year is : 13.2%

Maximum population growth is the percentage change in the size of the population of a habitat in a given year.

Caring capacity = 400 birds

Initial population at the start of the year = 250 birds

Number of birds added = 283 birds

population growth rate =  ( 283 - 250 ) / 250  * 100

                                       = 0.132 * 100 = 13.2 %

Hence the maximum population growth rate if the population grows 283 in one year is 13.2%

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During one year, seven coyotes in a population die. Eight immigrate into the population, but none emigrate. If the overall population growth is 13 coyotes, what was the birth rate of coyotes during the year? Use this formula: population growth = (birth rate + immigration) – (death rate + emigration) 7 11 12 15

Answers

Answer:

Death rate= 7 coyotes

Immigration= 8

Emigration= 0

Population growth= 13

Let’s suppose that the birth rate for the given population is x.

Population growth = (birth rate+immigration) - (death rate+emigration)

13=(x+8)-(7+0)

13=x+1

Move the variable to the left side and change its sign.

-x+13=1

Move the constant to the right side and change its sign

-x=1-13

-x=-12

x=12

Answer: x=12

Explanation:

edge2021

Answer:

Death rate= 7 coyotes

Immigration= 8

Emigration= 0

Population growth= 13

Let’s suppose that the birth rate for the given population is x.

Population growth = (birth rate+immigration) - (death rate+emigration)

13=(x+8)-(7+0)

13=x+1

Move the variable to the left side and change its sign.

-x+13=1

Move the constant to the right side and change its sign

-x=1-13

-x=-12

x=12

Answer: x=12

Explanation:

edge 2021

Someone please please help me with this !! I would really appreciate it

Answers

Answer:

A

Explanation:

Because you would have to have a high mobility to get food and take of without being hit.

Tell me more about the parts of the water cycle and how they work.

Answers

Answer:

QUESTION:

Tell me more about the parts of the water cycle and how they work.

ANSWER:

The water cycle consists of three major processes: evaporation, condensation, and precipitation. ... In the water cycle, liquid water (in the ocean, lakes, or rivers) evaporates and becomes water vapor. Water vapor surrounds us, as an important part of the air we breathe. Water vapor is also an important greenhouse gas.

Explanation:

Hope that this helps you out! :)  

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What causes the change from day to night and vice versa?

A. The orbit of the sun around Earth.
B. The moon's rotation around Earth
C. The rotation of Earth on its axis.
D. The orbit of Earth around the sun

Answers

Answer:

c? if u stand infront a light and spin, the opposite side to the light would be dark?

C,the rotation of earth on its axis

Why is ecology important?

Answers

Ecology enriches our world and is crucial for human wellbeing and prosperity. It provides new knowledge of the interdependence between people and nature that is vital for food production, maintaining clean air and water, and sustaining biodiversity in a changing climate.

P S Q R The biological levels of organization range from a single organelle all the way up to the biosphere in a highly structured hierarchy. Multicellular organisms are organized from the simplest to most complex: cells, tissues, organs, organ systems, organisms. Evaluate the model above. Select ALL of the statements that accurately depict the examples shown in the model. A) R shows an animal cell. B) O shows types of tissue. P shows organs in the endocrine system. D) P shows an organ system, the digestive system. E) S shows an organ system, the digestive system.​

Answers

Answer: the red thing pretend is blood and blue thing is water you first ta

Explanation:

Answer:

A) R → Q → P → S

Explanation:

I just took the test on USA Test Prep

Which of the following would cause the greatest reduction of wildfires?
A decrease in lightning storms
An increase in rainfall
A decrease in average wind speed
Preventing people from visiting wildfire-prone areas

Answers

☁️ Answer ☁️

D: Preventing people from visiting wildfire-prone areas.

Hope it helps.

Have a nice day noona/hyung.

How might change in one population affect other populations?

Answers

The food chain will mess up.

A 52-year-old woman has difficulty initiating voluntary movements. She can clearly state what she intends to do, describe exactly how she would do it, and picture herself doing it easily. When she is able to begin the motion, she can complete it smoothly and accurately, but she has difficulty beginning the motion. If the difficulty arises from a defect in one particular area of the nervous system, which area is most likely to be involved

Answers

Answer:

Basal Ganglia

Explanation:

The Basal ganglia function is to regulate the voluntary movements or autonomic movement. This is done by receiving and transmission of impulses. Impulses are received for upcoming movement from the cerebral cortex and then process and adjust from where it is convey to the thalamus which then relays this information back to the cortex. The well defined movement instruction is finally sent to the skeletal muscles through the tracts of the pyramidal motor system. It also function in planning and modulation of movement, memory and eye movement.

There are five types of basal ganglia corpus striatum, claustrum, amygdala, substantia nigra and subthalamic sails which all function together.


a) Which of the three types of organisms (multicellular, unicellular and colonial) would have
been the earliest form of life?

Answers

Answer:

unicellular...lemme know if am right

Describe the process of photosynthesis, in your own words.

Answers

Answer:

Photosynthesis is process by which green plants manufacture their food by making use of carbon dioxide and water in the presence of sunlight

GIVING BRAINLIEST!!!!

Name the types of adaptation that animals and plants can have

Answers

Answer:

poison, thorns, sharp teeth

Explanation:

What is the force of a 3 kg skateboard accelerating at a rate of 4m/s2? Plug in the numbers: Force = mass x acceleration

Answers

Here is the answer:
Mass= 3kg
Acceleration =4m/s
Putting the formula:
F=m*s
F=3*4
F=12N( Newton is the S.l unit of force)

Into what kingdom would each of the following be classified: Unicellular prokaryotes that live in dust. ______________________ Unicellular eukaryotes that line in pond water. _____________________ Multicellular eukaryotes that live all over the planet and consume food. ______________________ Unicellular prokaryotes that live in volcanic ash. _________________________ Multicellular eukaryotes that have cell walls and are heterotrophic. _______________________ Multicellular eukaryotes that have cell walls and are autotrophic. ________________________

Answers

Answer:

Unicellular prokaryotes that live in dust: Eubacteria

Unicellular eukaryotes that line in pond water: Protista  

Multicellular eukaryotes that live all over the planet and consume food: Anamalia  

Unicellular prokaryotes that live in volcanic ash: Archaebacteria  

Multicellular eukaryotes that have cell walls and are heterotrophic: Fungi  

Multicellular eukaryotes that have cell walls and are autotrophic: Plantae

Explanation:  

Prokaryotic organisms can be classified into two groups: Eubacteria and Archaebacteria. Eubacteria (i.e.,“true” bacteria) are unicellular prokaryotic microorganisms that live in normal environmental conditions. On the other hand, Archaea (Archaebacteria) are prokaryotic older organisms that thrive in extreme conditions (in this case, volcanic ash). Moreover, eukaryotic organisms can be classified into four kingdoms: Protista, Plantae, Fungi and Animalia. Protista are unicellular eukaryotes that live in different aquatic environments (i.e., oceans, ponds, streams, etc). Animals are multicellular, mobile, heterotrophic (i.e., organisms that cannot produce its own food) organisms whose cells lack walls. Fungi are heterotrophic organisms that acquire their food by absorbing dissolved organic compounds, whose cells have cell walls (but they lack chloroplasts). Finally, plants are multicellular autotrophic (i.e., organisms that produce their own food) organisms whose cells contain walls and chloroplasts (to produce food by photosynthesis).

Which of the following sentences are the best short summary for a flashlight?A A flashlight flashlight has has many many uses.uses.A A flashlight flashlight is is able able to to create create light light energy, energy, which which allows allows us us to to see see in in the the dark.dark.A A flashlight flashlight is is a a necessary necessary tool tool for for every every household.household.A A flashlight flashlight is is a a portable, portable, battery-battery-operated operated device device that that makes makes light.light.

Answers

Answer:

The last one

Explanation:

Flashlight is a portable, battery-operated device that makes light.

A flashlight is a portable, battery operated device that makes light is the best short summary for a flashlight.

What are the features of flashlight?

A flashlight or torch is a portable hand-held electric lamp. Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes since the mid-2000s.

The three main features for a flashlight are Dimensions, Battery, and Light. Each of these characteristics are very important when it comes to selecting a flashlight.

Flashlights are used as a light source outdoors, in places without permanently installed lighting, during power outages, or when a portable light source is needed.

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Are these ramen noodles expired?

Answers

Answer:

it depends on the numbers on the bottom they foretell the nono time to eat

Answer:

they look fine, just check the expiration date and make sure the package wasn't already opened.

Explanation:

they look good to me though, so I'd say eat up!

How many offspring did generation I have?

Group of answer choices

2

3

4

1

Answers

Answer:

2

Explanation:

Because

According to Darwin, an organism that is very successful at living and reproducing has a high level of: A). Genetic Equilibrium B). Altruistic Ability C). Fitness D). Hormones

Answers

Answer:

Hormones because without hormones there will no living humans on the world because two people having intercourse together they can make another human being

According to Darwin, an organism that is very successful at living and reproducing has a high level of: A). Genetic Equilibrium B). Altruistic Ability C). Fitness D). Hormones

The diagram shows the same type of molecules in area A and area B.

With the passage of time, some molecules move from area A to area B. This movement is the result ot the process of

1. phagocytosis
2. pinocytosis
3. diffusion
4. cyclosis​

Answers

Answer:

3. diffusion, because molecules are moving from a high concentration(A) to a low concentration(B)

Diffusion is the net flow of matter from a location of high concentration to a region of low concentration as a result of the random mobility of molecules. Both stopping and reversing this process are not possible. Thus, option C is correct.

What are the main mechanism in diffusion process?

The molecules' kinetic energy causes random motion, which causes diffusion. This mechanism happens in simple diffusion without the help of a carrier protein.

The molecules travel from an area of high concentration to an area of low concentration due to their random mobility.

Chemicals flow across the plasma membrane from areas of high concentration to areas of low concentration in cells to maintain an equilibrium (balance) of internal substances.

This implies that if there are more items inside the cell than outside, they will go outside and vice versa. It happens when the medium around the cell contains more water than the cell itself.

Therefore, This movement is the result of the process of diffusion.

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Help please <3 Thank you

Answers

Answer:

The answer is C

:::::::::::::::::::

Why is the sea otter's diet of seafood a problem with some of the fisherman?

Answers

Answer:

Sea otters, because of their eating habits, are considered a “keystone predator,” predators that keep the ecosystem balanced. ... When not enough otters are around to eat the sea urchins, the urchin colonies grow unchecked and “urchin barrens” increase.

Explanation:

Which components make up the cardiovascular system?
lungs, heart, and blood vessels
heart, blood vessers, and blood
heart, blood, and lungs
lungs, heart, and skin

Answers

Answer:

heart blood vessels and blood

Answer:

Heart, blood vessels, and blood

Explanation:

The heart pumps blood around the body, the blood vessels transport the blood, and the blood is the blood itself

26 POINTS!!!!!!!! | Which statement best describes trait distribution?

A.) Distribution describes how the variation in traits is spread across a population.

B.) Distribution describes the different traits that are found in a population.

C.) Distribution describes how individuals in a population are spread across their habitat.

D.) Distribution describes the different traits that are found in a species.

Answers

Answer: I think its b not sure though

Explanation:

have a great day :)

The statement which best describes trait distribution is: B. Distribution describes the different traits that are found in a population.

What is a trait?

A trait can be defined as a distinguishing quality, feature or characteristic that is possessed by a living organism and it differentiates from other species of organisms.

Generally, a trait is commonly transferred from the parent of a living organism to her offspring, so as to distinguish him or her from others.

The examples of traits:

In Genetics, some examples of traits include the following:

Colorblindness Curly hairHeight Complexion

On a related note, a trait distribution refers to different traits that are possessed by a living organism found in a population.

In conclusion, trait distribution is described as different traits that are found in a population.

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