Which statement is true?
O A. Opinions can be scientifically tested.
OB. Scientific theories are absolute and cannot be changed.
OC.
Scientists have learned all they'll ever know about science.
OD.
Facts can be scientifically tested.

Answers

Answer 1

Answer: D. Facts can be scientifically tested.


Related Questions

If star A is red and star B is blue which star is brighter

Answers

Answer:

Star A

Explanation:

Although blue stars are hotter, red stars go through nuclear fusion faster than blue stars, which makes them give off more light :)

HELP PLEASE
Which of these chemicals is not a pollutant?
A. Methane
B. Nitrogen gas
C. Nitrate
D. Carbon dioxide

Answers

Answer:

All these chemicals are primary causes of pollution. Although, only one isn't an air pollutant. Which would make my best Guess C. Nitrate

Explanation:

A. Methane Is the main component in gas and oil. Oil companies have been responsible for polluting our air with about seven million tons of methane per year.

B. Nitrogen gas in general is one of the main air pollutions. otherwise know as Nitrogen dioxide.

C. Nitrates are found in ground waters and transfers into the soils surrounding said waters. Nitrates commonly are a cause of death in infants when drinking tab water or eating crops grown from nitrate infected soils. Adults aren't nearly as infected by this.

D. Carbon Dioxide is a greenhouse gas that pollutes our air and has been a main cause of global warming.

I'm at a loss for answering this question since all of these are polluting our earth in some way. The only way I can think to answer this is that all but one are air pollutants. So maybe the one that is not a air pollutant is the correct answer. My best guess is C. Nitrate

Hopes This Helps :)

“I have been trying to get the population of a fish pond to 80 for 3 hours”

This is a question my friend is asking, if someone could quickly answer by today that would be greatly appreciated :]

Answers

Answer:

[tex]well, \: i \: think \: your \: friends \: get \: rate \\ \: is \: \frac{80 \: p}{3 \: hrs} = 26.67 {p(hrs)}^{ - 1} [/tex]

What is the role of photosynthesis and cellular respiration in the cycling of matter and the flow of energy through the ecosystem

Answers

Answer:Cellular respiration in plants and animals involve chemical reactions with oxygen that release stored energy. ... Plants, algae, and many microorganisms use the energy from light, carbon dioxide from the atmosphere, and water to make sugars (food) through the process of photosynthesis, which also releases oxygen.

Explanation:

hope it helps :)

The role of photosynthesis and cellular respiration in the cycling of matter and the flow of energy through the ecosystem is the following:

The fundamental energy source of all ecosystems is the Sun, which sends a large amount of energy to Earth in the form of light and heat.

The various green plants use energy from the sun, water and nutrients from the soil, and carbon dioxide from the air to produce organic matter.

The process by which light is used as an energy source to transform CO2 into organic compounds essential for life is called photosynthesis.

The manufactured organic matter is used by the photosynthetic organisms themselves for the maintenance of their vital processes through cellular respiration.

Energy, once solar energy is transformed by producers into chemical energy by making organic matter in photosynthesis, is transmitted along with matter.

In each transfer of energy, between the different types of organisms there is a release of energy to the environment, in the form of heat.

On the contrary, matter flows cyclically, chemical elements are transferred between living beings and in the physical environment of each ecosystem.

Therefore, we can conclude that the role of photosynthesis in the cycling of matter and the flow of energy through the ecosystem is to produce the transformation not only of inorganic into organic matter, but also of light energy into chemical binding energy, oxygen is released as a waste product and is used by most organisms for cellular respiration.

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How does the analogy contrast to the cell wall ?

Answers

Answer:

An analogy for the cell wall is that thecell wall is like an outer wall along a castle (enclosed compound). The cell wall is a rigid outer barrier.

Explanation:

please mark as brainlist answers

what happened as a result of over hunting whales

Answers

Everyone died snake kappa mf f d

If a cell's organelle worked in an actual human factory and had the role of the electric generator, which organelle would it be?

Answers

Answer: mitochondria

Explanation:

An electric generator produces energy to do work. A mitochondria produces ATP to power the cell.

1. What is the density of an object that has a mass of 1,470 g and volume of 42 mL?

Answers

Answer:below

Explanation:

ρ =  m/V=  

1470 gram/42 milliliter

=  35 gram/milliliter

=  35000 kilogram/cubic meter

What would happen if the squirrel population were eliminated

Answers

It would disrupt the food chain

Lymph eventually ends up in the circulatory system.
A.
True
B.
False

Answers

Answer:

True

Explanation:

Which surface erosion event does the most short- term damage?


Loss of topsoil from farmland.


Movement of rocks by glaciers.


Occurrence of mud slides after heavy rains.


Pollution of water sources caused by runoff.

Answers

Answer:

Occurrence of mud slides after heavy rains.

Explanation:

Soil erosion is defined as the removal of top soil from the land and it affects the fertility of the soil. It is also known as soil degradation.

Soil erosion has both short-term and long-term damage. Short-term damage of erosion includes the occurrence of mudslides after heavy rains which is called landslide. It is a short-term damage because landslides took long-duration to happen and when happened it can be shortly recovered using machines.

Hence, the correct answer is "the Occurrence of mudslides after heavy rains."

Your model should clearly illustrate cellular division (mitosis) as well as differentiation into specialized cells
can someone tell me what to draw i really dont kno?

Answers

It's this one here, just copy it. The Mitosis is the evolution of one cell which splits up into two new ones

Cellular division (Mitosis) is the biological process whereby a parent cell breaks itself into different parts called daughter cells.

This process is important because it helps to divide cells so that they can:

Experience growthRepair broken cellsReproduce, etc

Cellular differentiation is the process of a cell going from one form to a more specialized cell.

A good example of this is the process of a fetus being formed from a single celled zygote.

Attached below is an image of cell differentiation and cellular division.

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Which of the following would be the correct classification for the soil and earth material in the most productive aquifer?

low porosity, high permeability
high porosity, high permeability
low porosity, low permeability
high porosity, low permeability
Please help ASAP
(50 points if you help FAST)

Answers

Answer:

B. high porosity, high permeability

C. low porosity, low permeability

Explanation:

According to natural selection theory, Different species occupying the same habitat will adapt to that habitat by undergoing the same genetic changes Adaptations beneficial at one time should generally be beneficial during all other times Well-adapted individuals have more offspring, and thus contribute more to the next generation's gene pool, than do poorly adapted individuals. Adaptations beneficial in one habitat should generally be beneficial in all other habitats

Answers

Answer:

The most correct statement is - Well-adapted individuals leave more offspring, and thus contribute more to the gene pool, than poorly adapted individuals.

Explanation:

Adaption in natural selection is a species, time-specific, and habitat-specific process. So, it means if a species is adapted to genetic changes in a particular habitat, it is not necessary that all other species also adapt to similar genetic changes.

Similarly, if a species has beneficial adaption for a particular habitat, it is not necessary it will be beneficial for the other habitat as well.

Thus, natural selection leads to the well-adapted individual that leave more offspring and contribute more to the gene pool.

Which do scientists link to increased hurricane strength?
O A. Higher ocean temperatures in the arctic
B. Higher land temperatures in the arctic
C. Higher ocean temperatures in the tropics
O D. Higher land temperatures in the tropics

Answers

Answer:

Higher ocean temperatures in the tropics

Explanation:

apex :)

Higher ocean temperatures in the tropics are linked to increased hurricane strength. Therefore, option (C) is correct.

What is hurricane strength?

Hurricane strength is a measure of the intensity of a tropical cyclone, which is a rotating storm system that forms over warm ocean waters in the tropics. The strength of a hurricane is measured using the Saffir-Simpson Hurricane Wind Scale, which ranks hurricanes from Category 1 (weakest) to Category 5 (strongest) based on their sustained wind speeds.

Hurricanes can cause significant damage due to their strong winds, heavy rainfall, storm surges, and flooding. The strength of a hurricane is influenced by a variety of factors, including warm ocean temperatures, low wind shear, and high humidity. As global temperatures continue to rise due to climate change, it is expected that hurricanes will become more frequent and more intense, which could have significant impacts on coastal communities and infrastructure.

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Which of the following scenarios is representative of parasitism? A.Tapeworms living in mammal's intestinal tract B.Remora fish attaching themselves to sharks C.Birds feeding on insects stirred up by grazing animals D.Birds eating scraps of food from crocodile's teeth

Answers

Answer:

A- Tapeworms living in a mammal's intestinal tract.

Explanation:

Parasitism is a symbiotic relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.

Hope this helps!

Which grouping has the least complex body plan?

Answers

Answer:

The correct answer to this question is "poriferia."

Explanation:

The common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.

Answer:

The correct answer to this question is "poriferia."

The common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.

Explanation:the common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.

Which type of energy pyramid can be inverted?


A) pyramid of numbers

B) pyramid of biomass

C) pyramid of energy

D) pyramids of numbers, biomass, and energy

Answers

Answer:B

Explanation:

Answer:

The correct answer is D

Explanation:

What challenges do Arctic areas face as a result of global warming? 2) What measures could help deal with the problem? 3) What do you predict will happen to Arctic ecosystems if no measures are taken to reverse the problem of global warming? Explain your reasoning. 4) Which measures do you think are most important to pursue?

Answers

Answer:

Global warming is defined as the environmental issue that leads to long term heating of the earth due to human activities such as burning of fossil fuels.

1. Arctic areas are facing huge challenges due to global warming that includes rising sea levels, rapid melting of ice,  loss of fish stocks, birds and marine mammals, and changes in climate patterns.

2. Measures that help to deal with the problem are reduction in the use of hydrofluorocarbons, cutting emissions of black carbon, methane, reduce overfishing, and reduction of industrial waste.

3. If there will be no measure taken to reverse the problem of global warming in the Arctic ecosystem, it will cause flood and tsunami in the nearby continents due to the rapid melting of ice, changes in climate patterns, and lead to the extinction of many marine animals.

4.  Reduction of industrial waste is the most important measure to pursue because industrial waste contributes most of the greenhouse gases and causes air pollution, land pollution, water pollution, and nuclear pollution. So reduction is industrial waste will reduce the emission of harmful gases in the environment that can reduce the impact of global warming.

BRAINLIEST BRAINLIEST BRAIBLIEST PLEADE ANSWER DUSUSISISJJAIXNDJDD

Answers

Answer:

uh I am not really sure But I think it is HE

Explanation:

It appears the answer must be:

Hydrogen

Which of the following substances increases in amount during the cellular respiration of glucose?

Select one:
a. O2
b. NADH
c. ADP
d. Glucose

Answers

The answer is letter C. ATP

Carbon monoxide has ____ of oxygen.

zero atoms
one atom
two atoms

Answers

It might be 2 I'm not sure

Answer:

carbon monoxide (CO)

1 oxygen atom

Which biome receives 200 to 400 cm of rain per year?

Deciduous forest

Temperate rain forest

Taiga

Grassland

Answers

Answer:

Temperate rainforest

Explanation:

I took the test.

Answer:

B-temperate rain forest

Explanation:

cause i am smart

Some astronomers work for consulting firms that provide expertise to government agencies. Which of the following explains why an astronomer would work as a consultant?


An astronomer would be able to focus on research alone.

An astronomer would not have to obtain a national security clearance.

An astronomer would apply expertise to improve satellite designs.

An astronomer can make more money working as a consultant.

Answers

Answer: An astronomer would apply expertise to improve satellite designs

The one that explains why an astronomer would work as a consultant is an astronomer would apply expertise to improve satellite designs. The correct option is c.

Who is an astronaut?

An astronaut is a person who works in the areas of space. They have knowledge of space equipment, and technologies.

A satellite is an instrument that revolves around the planets. There are natural satellites and artificial satellites. Natural satellites are the moon and artificial satellites are made by space design artists and all the activities are checked by astronauts.

A consultant is an assistant that works with an astronaut. They have expertise in technologies and assistance in the making of space equipment.

Therefore, the correct option is c. An astronomer would apply expertise to improve satellite designs.

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Suppose we completely stopped burning fossil fuels immediately. How many years would it take to return to atmospheric CO2 levels from the year 1800, about 600 GtC? Use the Gizmo to find the answer.

Answers

Answer:

Explanation:

It would take 50 years to return to atmospheric CO2 levels from the year 1800. I know this because I set the fossil fuel usage to 0 and proceeded to simulate 50 years and that’s when the atmospheric CO2 levels returned to 600 GtC.

As per observation It could take 50 years to go back to atmospheric CO2 degrees from the yr 1800.

Each year, there has been no extrade in the quantity of CO2 withinside the ecosystem because of soil and land plants. coal also can be the answer.

What is co2 quantity ?

Since 2000, the worldwide atmospheric carbon dioxide quantity has grown with the aid of using 43.5ppm, an growth of 12 percent. The contemporary-day document of atmospheric carbon dioxide degrees commenced with observations recorded at Mauna Loa Observatory in Hawaii.

Thus it is well explained.

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_______ species are the first species to colonies disturbed or newly created environment

Answers

Native species should be the correct answer

Scientists have a theory about the relationship between climate and biodiversity. Which best describes this theory?

Warmer climates promote higher biodiversity, allowing plants to grow year-round. This supports more organisms that rely on plants.
Colder climates promote higher biodiversity, reducing the competition among organisms for food. This supports stronger organisms that live longer.
Warmer climates promote higher biodiversity because they tend to receive more rainfall. This provides a source of water for more organisms.
Colder climates promote higher biodiversity because they are usually larger in size. This provides space for more organisms.

Answers

Answer:

c

Explanation:

"warmer climates promote higher biodiversity because they tend to receive more rainfall. This provides a source of water for more organisms."

Answer:

The correct answer is A

Write five general properties of minerals

Answers

Answer:

Color, luster, streak, hardness, and cleavage

Explanation:

A student observes that a mountain has a layer of coal at the top of it.
How did the coal come to be at the top of the mountain?*

Answers

Answer:

Explanation:

Which process occurs within the mitochondria?
lactic acid fermentation
alcohol fermentation
glycolysis
Krebs cycle

Answers

Answer:

Krebs cycle.

It's also known as the citric acid cycle. It releases stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins.

The biological process occurs within the mitochondria is: D. Krebs cycle

Cellular respiration refer to series of metabolic reactions typically occuring in all living cells, in order to produce energy in the form of adenosine triphosphate (ATP).

Basically, there are three (3) main stages involved in cellular respiration and these include:

Glycolysis.Krebs cycle.Electron transport chain.

Krebs cycle is an aerobic reaction that takes place in the mitochondria of both prokaryotic and eukaryotic cells and in the presence of oxygen. Also, the Krebs cycle produces carbon dioxide ([tex]CO_2[/tex]), two (2) adenosine triphosphate (ATP), six (6) NADH, and two (2) FADH.

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The number of free spng to download is determined by usomg a ratio. When you purchase 40 songs, you get 24 free song download. How many songs must you purchase in order to get 6 free song downloads? Which choice best shows a proper noun replaced by a common noun, AND a common noun replaced by a proper noun? A) Day after day after day, the main street and the park in town stood deserted. B) My sister and I stayed in shady corners and in front of old plastic fans. C) Day after day after day, Main Street and the park in town stood deserted. D) Sid, my sister, and I stayed in shady corners and in front of old plastic fans. HII!! I NEED HELP ASAP :D What was the last major battle of the war where General Cornwallis surrendered to George Washington?A. PrincetonB. TrentonC. CharlestonD. YorktownOn what date did the treaty of Paris become official?A. April 10 1782B. June 11 1782C. July 14 1783D. Sep. 3 1783As part of the treaty, the Americans got fishing rights in the.. A. 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Please help me immediately I will mark you as brainiest. when we observe an organism or environment what are we observing A. changes B. similarities C. colors Carlos or Jane usually (know , knows) The answers to most of the questions on the radio music quiz show Townsend Industries Inc. manufactures recreational vehicles. Townsend uses a job order cost system. The time tickets from November jobs are summarized as follows: Job 201 $4,280 Job 202 2,140 Job 203 1,690 Job 204 3,140 Factory supervision 1,460 Factory overhead is applied to jobs on the basis of a predetermined overhead rate of $22 per direct labor hour. The direct labor rate is $15 per hour. If required, round final answers to the nearest dollar. Required:a. Journalize the entry to record the factory labor costs. b. Journalize the entry to apply factory overhead to production for November. Name the starred note on the pianoPLEASE help I dont understand this and this is on a timed test!! Thank u! Consider the following scenario:Cold Goose Metal Works Inc.s income statement reports data for its first year of operation. The firms CEO would like sales to increase by 25% next year.1. Cold Goose is able to achieve this level of increased sales, but its interest costs increase from 10% to 15% of earnings before interest and taxes (EBIT).2. The companys operating costs (excluding depreciation and amortization) remain at 70.00% of net sales, and its depreciation and amortization expenses remain constant from year to year.3. The companys tax rate remains constant at 40% of its pre-tax income or earnings before taxes (EBT).4. In Year 2, Cold Goose expects to pay $300,000 and $2,306,475 of preferred and common stock dividends, respectively.Complete the Year 2 income statement data for Cold Goose, then answer the questions that follow. Round each dollar value to the nearest whole dollar.Cold Goose Metal Works Inc. Income Statement for Year Ending December 31 Year 1 $30,000,000 21,000,000 1,200,000 $7,800,000$ Year 2 (Forecasted) Net sales Less: Operating costs, except depreciation and amortization Less: Depreciation and amortization expenses Operating income (or EBIT) Less: Interest expense Pre-tax income (or EBT) Less: Taxes (40%) Earnings after taxes Less: Preferred stock dividends Earnings available to common shareholders Less: Common stock dividends Contribution to retained earnings 1,200,000 780,000 $7,020,000 2,808,000 $4,212,000s 300,000 $3,912,000 1,895,400 $1,605,525 $2,519,025 Given the results of the previous income statement calculations, complete the following statements: In Year 2, if Cold Goose has 25,000 shares of preferred stock issued and outstanding, then each preferred share should expect to receive____________ in annual dividends If Cold Goose has 200,000 shares of common stock issued and outstanding, then the firm's earnings per share (EPS) is expected to change from __________ in Year 1 to in ________ Year 2 Cold Goose's before interest, taxes, depreciation and amortization (EBITDA) value changed from _______ in Year 1 to in ______ Year 2 It is __________ to say that Cold Goose's net inflows and outflows of cash at the end of Years 1 and 2 are equal to the company's annual contribution to retained earnings, $1,605,525 and $2,519,025, respectively. This is because of the items reported in the income statement involve payments and receipts of cash O O Ms o menos, y usted? 4. (01.02, 01.03 LC) Read and select the best expression to complete this dialogue. A boss meets up with one of her employees: -Buenos das. seorita? -Buenos das. Estoy muy bien, gracias. Jy usted? (2 points) O Cmo ests t Mucho gusto Estoy mal Cmo est usted 501 2 MON A bus and a truck leave a gas station at the same time and are headed to the same destination. If the bus traveled 110 miles in 2 hours, and the truck traveled 180 miles in 3 hours, who is on pace to reach the destination first? In round 1 of a game s student loses 5 points loses 3 points gains 17 points and loses 7 points whats the student score at the end of round 1 4. Evaluate the following expression for r= 5.2(r2 - 8) Please help me solve both of them