Why are scientific explanations subject to change?
A)
Scientists always need better technology.
B)
Scientific explanations are only a best guess.
C)
New scientific explanations are always better than old explanations.
D)
Scientific explanations are based on new observations and making sense
out of those observations

Answers

Answer 1

Answer:

D

Explanation:


Related Questions

The atmosphere is made up of several layers of air. The bottom two layers are the troposphere and the stratosphere. How does the troposphere differ from the stratosphere?
A.
The troposphere has a lower air pressure than the stratosphere.
B.
The troposphere contains more ozone molecules than the stratosphere.
C.
The troposphere is much warmer than the stratosphere.
D.
The troposphere contains less moisture than the stratosphere.

Answers

Answer:

C. The troposphere is much warmer than the stratosphere.

Explanation:

The atmosphere, which comprises of all the gases on the Earth, consists of five different layers namely: troposphere, stratosphere, mesosphere, thermosphere and exosphere. The TROPOSPHERE is the lowest layer of the atmosphere, followed by the STRATOSPHERE.

The troposphere differs from the stratosphere in the sense that:

- The troposphere is much warmer than the stratosphere

- The stratosphere contains majority of the ozone, hence, it it termed OZONE LAYER.

- The stratosphere has a lower air pressure and density than the troposphere.

- The troposphere contains more moisture (relative humidity) than the stratosphere.

Answer:

c

Explanation:

i did it on study island

In a longitudinal wave, wavelength can be measured as the distance between
A. two adjacent compressions
B. a compression and the next resting place
C. both.
D. none of the above

Answers

Answer:

A. two adjacent compressions

Explanation:

A wave is transverse if the oscillations occur at a right angle (transverse) to the direction of wave propagation. This kind of wave creates characteristic hills and down. Transverse waves include all-natural electromagnetic waves, rope waves, water waves, waves generated by the marketing of taut wire.

A wave is longitudinal if the oscillations occur along (along) the direction of wave propagation. The longitudinal wave creates characteristic places of thickening and thinning of the environment. Longitudinal waves include:

sound wave, elastic wave, laser beam

the process of freezing is occurring at which number?

Answers

Answer:

8-its turning back into a solid by looking at the arrow

Explanation:

Crust is destroyed:

A. At the lithosphere.

B. Near ocean trenches.

C. Near ocean ridges.

D. Near a divergent boundary.

What’s the answer?

Answers

Answer:

its

Explanation:

Near ocean trenches A p e

(DO THE PUNNET SQUARE)​

Answers

Answer:

the answer is no

Explanation:

Answer:

No they would not.

Explanation:

Both A and B alleles are dominant over O.

i am deeply sorry if you get them wrong.

Scientists impact the fight against AIDS and cancer by finding new technologies to aid in fighting and curing these diseases.


Please select the best answer from the choices provided

T
F

Answers

I think the Answer is T

What is the diploid of the zygote produced by fertilization—haploid or diploid?

Answers

Answer:

"Haploid" refers to any cell that has 23 chromosomes (half of the total 46). "Gametes" are specifically sex cells that have 23 chromosomes. "Diploid" refers to any cell that has all 46 chromosomes. "Zygote" is the result of two gamete (haploid) cells fusing, and becoming a diploid cell.

hope this helps!!:)

Explanation:

Ok I have the answer one second

Madison is trying to determine which science investigation she should do for the school science fair. She knows that some investigations involve an experiment and that some only involve making observations. Which question is one that she can answer by performing a scientific experiment, instead of only making observations?


Which extraction method yields the most DNA from fruit?


How did Watson and Crick determine the structure of DNA?


Which family members exhibit blue, green, and brown eyes?


Which organisms exhibit the most similar physical characteristics?

Answers

Answer:

Is A

Explanation:

Which extraction method yields the most DNA from fruit, this biological question she can answer by performing a scientific experiment, instead of only making observations. Thus option A is correct.

What is scientific experiment ?

An experiment in which different measurements  and tests are carried out to verify or conclude the hypothesis.

The hypothesis is an idea or proposition which seems to be true, but not been proved. The experiment is carried out by using this hypothesis for further investigation.

In scientific experiment scientists can  discover some unknown mechanism or concept or product.

The scientific experiment is a part of a process called scientific method.

The different steps are Making an observation, Asking a question, making hypothesis, doing experiments,

To test the hypothesis, collecting the results or data, analysis of result, conclusion, reporting the results.

Thus option A is correct.

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what is photosynthesis - short answer only plz

Answers

Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.

what is a polygon with 12 angles called

Answers

Answer:

Properties. Convex, cyclic, equilateral, isogonal, isotoxal. In geometry, a dodecagon or 12-gon is any twelve-sided polygon.

Explanation:

Predict what would happen if Nemo (an ocean dwelling fish) were placed in a salt water aquarium
AO He would start to shrivel up
В.
He would start to swell up
C
He would be unaffected
D.
He would start looking for his child

Answers

He would be unaffected I think cause he has a brain if you watched the movie
I think it’s C
He would be unaffected

What process is typical of cancer

Answers


The cell divides and grows in the organ of origin, causing a localized tumor. Cancer cells then spread to adjacent tissues or regional lymph node drainage areas, and then advance to distant organs or structures, creating metastatic tumors.

Muscular dystrophy is a sex-linked recessive disorder that causes the muscles to slowly weaken. Which of the following circumstances would a male child most likely show the trait coded for by the recessive allele?
Group of answer choices

A recessive allele is located on a autosomal chromosome.

A dominant allele is found on the Y chromosome.

A dominant allele is inherited from the father.

A recessive allele is inherited on the X gamete.

Answers

For a se_x-linked recessive disorder such a s muscular dystrophy to occur in a male child, a recessive allele is inherited on the X gamete

What are se_x-linked recessive disorders?

Se_x-linked recessive disorders are disorders which occurs as a result of a defective gene found on the X chromosomes.

Se_x-linked recessive disorders are usually present on the X-chromosomes and affects mostly boys because they receive their X-chromosomes from their mothers.

For a se_x-linked recessive disorder such a s muscular dystrophy to occur in a male child, a recessive allele is inherited on the X gamete.

Learn more about se_x-linked recessive disorders at: https://brainly.com/question/9418183

(GIVING BRAINLIEST!!)

Describe the planets with just a few sentences.

Answers

Answer:

A planet is a celestial body that is in orbit around the sun.

It has sufficient mass for it's self gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium shape.

It has cleared the neighborhood around its orbit.

An example of planet is the earth

Ariana is trying to complete her flashcards for an upcoming quiz on photosynthesis and cellular respiration. On the front of each card she has written the reactants, and on the back she is writing the products. Her photosynthesis card is complete, but she is missing the back of her cellular respiration card. She asks her teacher what infomation she is missing. Which statement explains where Ariana's teacher will direct her to for help? The teacher will direct her to the anaerobic respiration card because they have identical products. The teacher will direct her to the back of the photosynthesis card because the two processes are identical. The teacher will direct her to the front of the cellular respiration card because cellular respiration has the same products and reactants. The teacher will direct her to the front of the photosynthesis card because photosynthesis reactants are the products of cellular respiration.

Answers

Answer:

The teacher will direct her to the front of the photosynthesis card because photosynthesis reactants are the products of cellular respiration.

Explanation:

Cellular respiration is an aerobic process in which energy is released by  breaking down glucose ( C6H12O6 ) and other molecules.

Photosynthesis is the process in which plants make their own food in the presence of sunlight by utilizing water (H2O) and carbon dioxide (CO2) and convert it into oxygen (O2) and glucose (C6H12O6 ).

equation of cellular respiration is: C6H12O6 (glucose) + 6O2 (oxygen) => 6CO2 (carbon dioxide) + 6H2O (water) + energy

equation of Photosynthesis: 6CO2 (carbon dioxide) + 6H2O (water) +energy => C6H12O6 (glucose) + 6O2 (oxygen)

Hence, cellular respiration is a reverse reaction of photosynthesis and the photosynthesis reactants are the products of cellular respiration.

Identify 2 organs that are used to protect the body from disease

Answers

Answer:

Primary lymphoid organs: These organs include the bone marrow and the thymus. They create special immune system cells called lymphocytes. Secondary lymphoid organs: These organs include the lymph nodes, the spleen, the tonsils and certain tissue in various mucous membrane layers in the body (for instance in the bowel).

Explanation:

mark me as brainliest

How many CO2 molecules are produced when three glucose molecules undergo cellular respiration?

A. 18

B. 3

C. 6

D. 12

Answers

Answer:

18 moles of CO2

Explanation:

We have to turn to the stoichiometry of the reaction as depicted in the equation below;

Equation of respiration;

C6H12O6 + 6O2 → 6CO2 + 6H2O

If 1 glucose molecule produces 6 moles of CO2

3 moles of glucose will produce 3 × 6/1 = 18 moles of CO2

Answer:

Question 1 answer:  "2"

Question 2 answer:  "O,H,C"

Question 3 answer:  "18"

Question 4 answer:  "stays the same"

Question5 answer:  "decreases"

Explanation:

i just finished the quick check UwU

Energy in our food is released as ________________ energy.
A) chemical energy
B) chemical potential energy

Answers

Answer:

b chemical potential energy

true or false: the fossils record cannot help us understand the transition between organisms

Answers

Answer:

False

Explanation:

Because it was correct

Descrlbe the relationshlp among the agents of disease, the Infectious dose, and the health of
a host.

Answers

Answer:

The number of pathogens that are required to infect a host, termed infective dose, varies dramatically across pathogen species. It has recently been predicted that infective dose will depend upon the mode of action of the molecules that pathogens use to facilitate their infection. Specifically, pathogens which use locally acting molecules will require a lower infective dose than pathogens that use distantly acting molecules. Furthermore, it has also been predicted that pathogens with distantly acting immune modulators may be more virulent because they have a large number of cells in the inoculums, which will cause more harm to host cells. We formally test these predictions for the first time using data on 43 different human pathogens from a range of taxonomic groups with diverse life-histories. We found that pathogens using local action do have lower infective doses, but are not less virulent than those using distant action. Instead, we found that virulence was negatively correlated with infective dose, and higher in pathogens infecting wounded skin, compared with those ingested or inhaled. More generally, our results show that broad-scale comparative analyses can explain variation in parasite traits such as infective dose and virulence, whilst highlighting the importance of mechanistic details.

Explanation:

:)

What happens as a result of convection currents in the earth's mantals

Answers

Answer:

Inside Earth, the convection of mantle material is thought to cause the movement of the overriding crustal plates, resulting in events such as earthquakes and volcanic eruptions.

Explanation:

Answer: Inside Earth, the convection of mantle material is thought to cause the movement of the overriding crustal plates, resulting in events such as earthquakes and volcanic eruptions.

Explanation: Think of paper on top of a flat plate. If you move the plate in various directions. The paper will also move, but it could be in the same, side to side or opposite direction the current is moving. When the crust or mantle moves. Stress is released causing earthquakes and volcanos erupting with magma from below the very ground you walk on.

4. What are the major causes of erosion and deposition?

Answers

Answer:

Hope the above picture might help you:)

Water flowing over Earth's surface or underground causes erosion and deposition. Water flowing over a steeper slope moves faster and causes more erosion. ... Runoff carries most of the sediment to bodies of water. Mountain streams erode narrow, V-shaped valleys and waterfalls.

Which two biomolecules aid in energy storage?

Answers

Carbohydrate a type of organic molecule made of carbon,hydrogen, and oxygen. Carbohydrates are polymers made of monomers called sugars. They are important energy storage molecules and structural molecules.

Need help...


Describe two problems a plant might encounter during reproduction

Answers

Answer:

During reproduction plant might experience absence of pollinators or presence of low temperature

Explanation:

Following can be the problems a plant might encounter during reproduction

Presence of Low temperature for long time: Due to presence of low temperature during the reproduction of plants for long period of time it will break its dormancy and freeze the blossom or developing fruitAbsence of pollinators: As e know pollinators play a vital role in reproduction. In the absence of Pollinators (i.e., beans) plants are not able to exchange the nectar carrying  

Plant reproduction takes place through the asexual and sexual process called pollination. They can either self-pollinate or cross-pollinate.

Reproduction needs the fusing of both the male and female gametes and fuse to male the seed that bear the fruit. During reproduction, the plants may face a lack of pollen grains and the presence of low temperature.

Learn more about the two problems a plant might encounter during reproduction.

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What is the process called that breaks apart the the phosphate bond in ATP?
Hydrolysis
Water bond
Hydrolostisosis

Answers

Your answer is going to be Hydrolysis

Does a xylem
Hold on to the soil and absorb water or is a tube yo move water up to the plant?

Answers

Answer: As a plant you have roots to absorb water. The xylem of a plant is the system of tubes and transport cells that circulates water and dissolved materials.

Explanation:

What is the main difference between food chains and food webs? (1 point)
o Food chains focus on energy transfers, but food webs do not.
o Food webs do not show connections between animals like food chains.
o Food chains focus on the internal energy cycles of animals, unlike food webs.
O Food webs are more complex than simple food chains

Answers

Answer:

The answer is D: Food webs are more complex than simple food chains.

Explanation:

A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains. In a food web, organisms are placed into different trophic levels.

Hope this helps!! ;)

Food webs are more complex than simple food chains.

A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem. Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web.The main difference between food chains and food webs is that Food webs are more complex than simple food chains.

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Hybrid tall pea plants were let to self pollinates and produces 1064 seeds. How many of them do you expect to be pure tall?
a. 354
b. 266
c. 532
d. 798​

Answers

Answer:

c 532 pure tall I think it right or wrong

All of the offspring will be tall, we would expect that all 1064 seeds produced would be pure tall. This means that the answer is c. 532, since 1064/2 = 532.

What is hybridization?

Hybridization is the process of breeding two individuals of different varieties, strains, or species to produce offspring with traits from both parents. This can occur naturally, through the cross-pollination of flowers or the natural mating of animals, or it can be artificially induced by humans through techniques such as selective breeding or genetic engineering.

Hybridization is often used in agriculture and horticulture to produce crops or ornamental plants with desirable traits from different varieties or species. For example, hybrid corn was developed by crossing different varieties of corn to produce plants with improved yields, disease resistance, and other beneficial traits. In animal breeding, hybridization is used to produce animals with specific characteristics, such as hybrid dogs that have traits from different purebred parent breeds.

Hybridization can also occur in nature when two different species come into contact and are able to breed. This can lead to the creation of hybrid species, which are offspring that have characteristics of both parent species. Hybridization can sometimes lead to the creation of new and unique species, but it can also cause problems, such as the introduction of invasive species or the erosion of genetic diversity.

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Calculate the average maximum height for all three trials when the speed of the bottle is 2 m/s, 3 m/s, 4 m/s, 5 m/s, and 6 m/s.

Record your calculations in Table B of your Student Guide.

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is
m.

When the speed of the bottle is 3 m/s, the average maximum height of the beanbag is
m.

When the speed of the bottle is 4 m/s, the average maximum height of the beanbag is
m.

When the speed of the bottle is 5 m/s, the average maximum height of the beanbag is
m.

When the speed of the bottle is 6 m/s, the average maximum height of the beanbag is
m.

Answers

Answer:

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is  

✔ 0.10

m.

When the speed of the bottle is 3 m/s, the average maximum height of the beanbag is  

✔ 0.43

m.

When the speed of the bottle is 4 m/s, the average maximum height of the beanbag is  

✔ 0.87

m.

When the speed of the bottle is 5 m/s, the average maximum height of the beanbag is  

✔ 1.25

m.

When the speed of the bottle is 6 m/s, the average maximum height of the beanbag is  

✔ 1.86

m.

Explanation:

Answer:

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is  

✔ 0.10

When the speed of the bottle is 3 m/s, the average maximum height of the beanbag is  

✔ 0.43

When the speed of the bottle is 4 m/s, the average maximum height of the beanbag is  

✔ 0.87

When the speed of the bottle is 5 m/s, the average maximum height of the beanbag is  

✔ 1.25

When the speed of the bottle is 6 m/s, the average maximum height of the beanbag is  

✔ 1.86

7. (10 pts) Main principles behind natural selection…

Principle Notes Examples

Populations evolve,

individuals do not.



 Populations are groups of

individuals belonging to the

Same species and living

in the same area



Artificial Selection

When Darwin got back from the voyage, he continued his studies. He looked at changes produced by plant/animal __

____. Breeders know that the _______ of individuals within a species _____. The breeders could _______ the species

over many ________ by selecting the individuals with the desired traits to mate together. This is called: __ _____. (If

changes can occur through artificial selection, then it would make sense that the same thing could happen naturally as

well).

Give an example of a crop that is bred through artificial selection:



5.02 Evolutionary Relationships

 a _________________ is the

smallest group that can evolve.

Inherited Variation  individuals within a population

have natural ________________

that can be inherited (they are

genetic)



Overproduction of

offspring



 ability to produce more

_____________________ than can

survive



Adaptations help

individuals compete

successfully for survival

and therefore beneficial

adaptations will become

more common in a

population.



 since more individuals are

produced than can survive, they

must ___________________ for

food, space, etc.

 "survival of the fittest."- Survival,

in evolutionary terms, means living

long enough to successfully

___________.

 Any inherited trait that increases an

organism’s ability to survive is

called an _________________.

 3 types of adaptations:

 Over many generations, more

beneficial traits will become more

_______________ since the

organisms with those traits are

better able to survive and

_________________.



Species can evolve into

new species over many

generations of successful

adaptations.



 New species can eventually emerge

with all of these new adaptations

over generations

-all living species descended with

___________________ from common

ancestors over a very long period of

time

Answers

Answer:

population evolve

Explanation:

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