How do scientists test theories

Answers

Answer 1

Answer:

using data, preferably multiple types of data from multiple sources.

Explanation:

hope this helps

Answer 2
Scientist tests theories by performing tests to see if the theory works, they also perform data, and along other things.

Related Questions

True or false? Prokaryotic cells are significantly smaller then eukaryotic cells.


Answer: False

Answers

Answer: Cell Size. At 0.1–5.0 µm in diameter, prokaryotic cells are significantly smaller than eukaryotic cells, which have diameters ranging from 10–100 µm (Figure 3.7). The small size of prokaryotes allows ions and organic molecules that enter them to quickly spread to other parts of the cell.

Explanation:

On the Galápagos Islands, Charles Darwin observed Question 1 options: completely unrelated species on each of the islands. species exactly like those found in South America. species similar to mainland South American species. species completely unrelated to those found in South America.

Answers

We can confirm that on the islands, Charles Darwin observed species similar to mainland South American species and to those found on the other islands.

What did Darwin notice about these species?

Darwin noticed that each of these species were very similar, but possessed slightly different traits. These traits seem to perfectly fit the needs of each species for their specific island, leading to his creating the theory of evolution through natural selection.

Therefore, we can confirm that on the islands, Charles Darwin observed species similar to mainland South American species and to those found on the other islands.

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Amoebae move and engulf food by using pseudopodia, which is Latin for ___ ____
(two words)

Answers

Answer:

false feet

Explanation:

PLEASE MARK ME AS BRAINLIEST AND HAVE A NICE DAY :)

Different________show very different characteristics or variations, however you can also have_______within the same species.
A. Evolutionary animals, major differences
B. Species, variation
C. Animals, subspecies
D. Evolutionary animals, subspecies

Answers

I think B makes the most sense but I’m not too sure

how would you go about a driver who is driving recklessly on the free way or any road you encounter

Answers

Answer:

Drive from as far away from them as possible. Attempt to speed past them.Or, call the police.

what dose the word milestone mean

Answers

Answer:

it is a stage in life

Explanation:

because it shows how one has progressed or developed

True or false? All cells share four key components: plasma/cell membrane, ribosomes, DNA, and cytoplasm.

Answer: True

Answers

Answer:

TRUE

Explanation:

Brainliest


Which taxonomic group will have organisms that share
the most

Answers

The Kingdom is the largest and most inclusive of the taxonomic categories. Species is the smallest and least inclusive of the taxonomic categories.i think-

Very fast brainlist

One person consumes the equivalent of five cows per year. Five cows consume a total of 39 million Calories of vegetation per year. One person only needs one million Calories a year to survive. Which statement best describes the efficiency of energy transfer in this scenario?

It is very efficient because the person can eat less.
It is inefficient because less energy is needed at the top.
It is very efficient because most energy is made by producers
Only a portion of energy from vegetation makes it to a person.

Answers

Answer:

It is very efficient because the person can eat less.

Explanation:

the common knowledge answer

Only a portion of energy from vegetation makes it to a person. The correct option is D.

What is energy efficiency?

The definition of energy efficiency is the use of less energy to carry out a task or achieve a goal.

Ecological efficiencies at each trophic link determine the food chain efficiency (FCE), which is calculated as the percentage of energy fixed by primary producers that is transmitted to the top trophic level.

The energy supply accessible to trophic level N+1 divided by the energy used by trophic level N is the definition of ecological efficiency.

Only a percentage of the energy from vegetation makes it to a person, which best sums up the efficiency of energy transmission in this situation.

Thus, the correct option is D.

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Which of the following does a graph not do?
It shows a visual display of a relationship
.It can display different relationships with different graphs
.It always shows dots in a random order.
It displays linear relationships with a straight line.

Answers

Answer:

It always shows dots in a random order.

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Brown hair is dominant and blonde hair is recessive.

The parents have the following alleles.

Bb

Bb

What color hair do the parents have?

A. One has blonde and the other has brown

B. Brown

C. Blonde

d. unable to determine

Answers

Given what we know, we can confirm that the parents have brown hair.


Why do the parents have brown hair?

This has to do with how dominant alleles work. When an allele is dominant, it is because, in the presence of mixed alleles, this trait will always be the one reflected in the phenotype of the individual. Since the parents possess an allele for brown hair and one for blonde, but brown hair is dominant, both parents will have brown hair.

Therefore, we can confirm that both parents will have brown hair due to the dominant nature of the brown hair allele.

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Sally made a diagram to show one way that Earth's systems interact near a volcano

1. Identify the process that sally is moldering in her diagram

2. Explain how the individual parts shown in the model come together to form a cycle

Answers

The process that Sally is modeling in her diagram is the "Role of Volcanoes in the Earth's Systems". This particular system is called "the Cycle of Rock and Soil formation"

How do the individual parts of the model form the cycle?

The cycle of soil formation starts with the production of molten magma by the volcano.

The magma solidifies and cools, then they are transported, deposited and go through lithification.

After lithification, they become sedimentary rocks, and then through exposure to pressure, they become metamorphic rocks.

Over the years, as more and more layers are deposited onto the metamorphic rocks, pressure and heat build up creating molten magma.

The magma creates igneous rocks which after many years may be produced again as molten magma through an active volcano.

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100 points i will give brainlist

Examine the graph below.

If the gross primary productivity of a salt marsh is 13,000 gC/m2/year, how much productivity is lost to cellular respiration? 1,750 gC/m2/year 11,250 gC/m2/year 13,000 gC/m2/year 14750 gC/m2/year

Answers

Answer:

Gross primary productivity, or GPP, is the rate at which solar energy is captured in sugar molecules during photosynthesis (energy captured per unit area per unit time). Producers such as plants use some of this energy for metabolism/cellular respiration and some for growth (building tissues).

Explanation:

Answer:

jtnull10

I just add another answer from another account to be able to give you brainlist

Explanation:

PLEASE HELP 10 POINTS!

Why is humus an effective fertilizer? (Select all that apply.)

It is abundant in inorganic nutrients.
It is dense and does not contain organic matter.
It is rich in organic matter.
It doesn’t need microorganisms to decompose matter

Answers

Answer:

It is rich in organic matter.

Explanation:

Humus is organic material formed when an animal or plant decays.Humus is formed by the decomposing action of soil microorganisms.

What that determines if a cell is eukaryotic. *

Answers

To determine whether a cell is a eukaryotic or
prokaryotic cell, one can observe certain features.
If the cell in the question possesses a well-defined
or definite nucleus and have membrane-bound
organelles such as mitochondria, chloroplasts,
Golgi apparatus, endoplasmic reticulum, the cell is
eukaryotic. If the cell has nucleoid or indefinite
nucleus and without membrane-bound cell
organelles, the cell is prokaryotic. If ribosomes in
a cell are the 80S (S=Svedberg units) type, the cell
is eukaryotic and if ribosomes are 70S type then it
is prokaryotic.
there’s not any answer choices, but eukaryotic cells possess a clearly defined nucleus. they also have more organelles

A Gram + bacterium that inhibits the growth of other Gram + bacteria is an example of what?

Answers

Answer:

The selenium particles when coated on paper towels were extremely effective and continuously inhibited (about a 90% reduction) the growth of gram-positive bacteria including S. aureus and S. epidermidis after 24, 48, or 72 hours.

The author probably wrote this Article in order to



























Answers

Answer:

c

Explanation:

it's the one that is most likely

What is an example of a population with the ingredient for species? Would it be evolution?

Answers

All members of a species that dwell in the same region are referred to as a population. You are a member of your hometown's human population. A freshwater pond is home to a variety of species, including mallard ducks and cattail plants growing on the pond's border. Basically, a population is a collection of individuals of the same species that live in the same geographic region and interbreed. Many animals have several populations that are spread across a wide range of geographic locations.

Non-vascular plants rely on _______ to get water
A. Germination
B. Drinking
C. Diffusion
D. Pollination

Please respond ASAP!

Answers

drinking water i hope this helps

Answer: C. Diffusion

Explanation:

Non-vascular plants use diffusion as they don't have vascular tissue to bring the water from the soil. Germination means to grow and pollination is for reproduction, so they don't relate.

If a person with Klinefelter’s syndrome wanted to look more like an average male, what medical treatment could help accomplish this?

Answers

A testosterone replacement

where do the decomposers come in the food chain if the pyramid gose like
coyotes
rattlesnake
kangaroo rats
sagebrush
where do the decomposers fit and why​

Answers

Answer:

Usually at the bottom

Explanation:

final link in food chain. they break down dead plants/animals and returns vital nutrients to soil

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

A. ash
B. dissolved gases
C. silica content
D. temperature

Answers

The only word among the available words that do not fit the pattern would be temperature.

Words and relationship

Ash, dissolved gases, and silica content are similar in the way that all of them are made up of matter.

Matter refers to any substance with weight and is able to occupy space. Ash is made from solid particles. dissolved gases are gases, and silica contents are also from solids.

Temperature, on the other hand, is a scalar quantity. It is not something that can be held or seen. It has no weight and neither does it occupy space.

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According to cell theory, which are made of cells? Check all that apply.

kitten
bacteria
cactus
mushroom
rock

Answers

Answer:

Kitten

Cactus

Mushrooms

Bacteria

so all but Rock

Because only living things have cells

Discuss the relationship between Gibbs free energy, redox reactions and cellular respiration in mitochondria.​

Answers

Cellular respiration is a redox process that mainly occurs in mitochondria, whereas Gibbs's free energy refers to the energy in a closed system.

What is cellular respiration?

Cellular respiration refers to the oxide reduction reactions (redox) associated with the production of energy in aerobic cells.

Cellular respiration occurs in the cytoplasm (glycolysis) and mitochondria (Krebs cycle and oxidative phosphorylation).

Finally, in thermodynamics, the Gibbs free energy refers to the energy generated in a closed system.

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What do scientists use organisms' shared characteristics to do?
A) classify the organisms
B) find the organisms' ancestors
C) locate the organisms
D) determine where the organisms live

Answers

The answer is A) Classify the organisms

Why would a cancer cell need to induce angiogenesis? 1.53​

Answers

Answer:

Why is angiogenesis important in cancer? Angiogenesis plays a critical role in the growth of cancer because solid tumors need a blood supply if they are to grow beyond a few millimeters in size. Tumors can actually cause this blood supply to form by giving off chemical signals that stimulate angiogenesis.

Which makes viral infections difficult to defeat?
• A. Macrophages work slowly.

B. The immune system must attack the body's own cells.

C. Viruses are attacked by a nonspecific immune response.
D. Viruses live outside of cells.

Answers

The statement 'the immune system must attack the body's own cells' makes viral infections difficult to defeat.

What is an infection?

Infection is a type of harm that the organism suffers when pathogenic microorganisms and viruses enter the body.

Pathogenic microorganisms include, for example, bacteria, fungi, and virus entities.

These pathogenic microorganisms/entities have specific antigens which can be recognized by the immune system.

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The earth is sometimes described as a giant magnet. True or false?

Answers

True. The crust of the Earth has some permanent magnetization, and the Earth's core generates its own magnetic field, sustaining the main part of the field we measure at the surface. So we could say that the Earth is, therefore, a "magnet."

What are the four features of minerals? (use complete sentences and your own words.)

(NO LINKS PLEASE)

Answers

Answer:

1)All minerals are naturally occuring.

2)They have to have a crystalline structure and a definite chemical composition.

3)They are inorganic.

4)They are a solid.

Explanation:

1-You have to find a mineral in the nature. It cannot be created in a lab.

2-Crystallline structure is the ordered arrangement of ions, molecules, or atoms in an object.

3-Inorganic means that the object has not bonded with carbon.

4-Solid means that it is not fluid and is hard and stable.

Hope this helps! :)

In the early stages of development all animals begin as what?

Answers

In the early stages of development all animals start as a single cell… They divide again and again until... gradually a body emerges…with a front, a back, a top and a bottom. important embryos were fish.
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