Why do scientists conduct experiments?
A. To test a hypothesis.
B. To test a conclusion,
C. To explain an observation.
D. To test their results.

Answers

Answer 1

Answer:

A).

Explanation:

In the scientific method, an experiment is an empirical procedure that arbitrates competing models or hypotheses. Researchers also use experimentation to test existing theories or new hypotheses to support or disprove them.

Answer 2
The answer is A. To test a hypothesis

Related Questions

Who is credited with creating the first accurate model of DNA? Rosalind Franklin Friedrich Miescher James Watson and Francis Crick Marshall Nirenberg and Heinrich Matthaei

Answers

Answer:

The answer is C

Explanation:

The persons credited by accurate model of DNA are James Watson and Francis Crick.

What is model of DNA?

The molecular models of DNA structures are representations of the molecular geometry and topology of deoxyribonucleic acid (DNA).

First accurate model of DNA

The first accurate model of DNA also known as 3-dimensional double helix structure of DNA, was correctly elucidated by James Watson and Francis Crick.

Thus, the persons credited by accurate model of DNA are James Watson and Francis Crick.

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Do people with blue eyes most likely have cancer?

Answers

Answer:

It is based on guesswork and analysis. For example, if 100 people have cancer, 80% of people have blue, green or grey eyes and fair skin, while the other 20% have some other eye colour.

HELP!!! WILL GIVE LOTS OF POINTS!!
The Arizona poppy has adapted to living in areas that receive less rain, but there are still periods of time that a drought occurs. What part(s) of photosynthesis would the plant not be able to perform if there is no rain? What would be the long-term effects on the plant if the drought were to continue? Explain your answer.

Answers

Answer:

I guess it would not grow??

Explanation:

Answer:

When plants lose more water than they can take up from the soil, they become water stressed. ... Such drought conditions certainly inhibit the growth of plants. If it goes long enough without water it will die because the plant uses water for a lot of different jobs needed to keep the plant alive, so the long-term effect is that the plant will die if the drought continues.

Please help me!!!!!!

Answers

Answer:

ANSWER FOR NUMBER 14 The arrows show in the food web what animals eat/get eaten by, and why the arrows can't point the other way is because if they were to point the other way it would be unaccerate, for example if we switch the arrows that means that a hawk would be eaten by a rat.

Explanation:

So yea I hope that helped, I'm not really good w words when it comes to science.

a b c d ?? pls help put

Answers

Answer:

C . Ribosomes

Explanation:

They are responsible for creating the protein in the cell .

The word comet comes from the greek word kometes, meaning "long hair". Why do you think this word is used?

Answers

Answer:

Its because when you see a comet falling in the night sky, most of the time, you see a long white streak right behind it.

Answer:

Porque un cometa tiene un núcleo y un rastro luminoso de gases que parece una cola

Explanation:

Add a brief description explaining the role of specialized cell in humans.
my assignment is due in 15 minutes PLS HELP!!!

Answers

Answer:

Specialized cells can turn into anything from when they are young. They can turn into stem cells, daughter cells or white or red blood cells.

Hope this helps :)

Explanation:

conduction of heart beat​

Answers

Answer:

Explanation:

The cardiac conduction system are specialized cardiac muscle cell that are located in the walls of the heart and sends signals to the heart muscle. These signals cause the heart to contract. The main components of this system are AV node, bundle of His, SA node, bundle branches, and the Purkinje fibers.

A zygote is the result of which life cycle process in spermatophytes?
a) germination
b) fertilization
c) pollination
d) cell respiration

Answers

B fertilization

Hope this helpsssss

Describe the law of conservation of mass

Answers

The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.

Why are epithelial cells in membranes

packed tightly?

to keep organs connected

to protect organs

to form different layers

Answers

Answer:

to protect organs

Explanation:

Epithelial cells are cells found in the human skin. They are tightly packed cells which helps to protect organs in the human body.

The cells are divided into different layers with an inner part and the outermost layer.

The skin is the largest organ of the human body. It protects all organs from the external environment.

What is the function of a seed's endosperm?
a) it divides to become the plant's first root
b) it will become the plant's seed leaves
c) it protects the plant embryo
d) it provides nourishment for the growing plant

Answers

Answer:

It's D

Explanation:

I had it on my quiz

Endosperm regulates seed development and facilitates the transmission of maternal nutrients to the embryo. Therefore, option (D) is correct.

What is endosperm?

The endosperm is a type of tissue that develops during fertilization and is found inside the seeds of most angiosperm plants. It gives the embryo the nutrients it needs to grow.

Endosperm is produced when the two sperm nuclei that are contained within a pollen grain make their way into the interior of a female gametophyte.

The endosperm contains carbs, protein, and minor amounts of B vitamins and minerals. These components affect our bodies differently: Bran and fiber inhibit starch digestion, preventing blood sugar increases.

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Ecosystems that experience the same climate conditions are grouped together into larger regions called
A.cycles
B.equators
C.poles
D.biomes

Answers

The answer is D biomes !!!!

The equation for photosynthesis can be written as 6CO2 + 6H2O --->
C6H1206 +602. How many oxygen atoms are present in the products of
photosynthesis?

Answers

Answer:

six

Explanation:

There are 6 oxygen atoms present in the products of photosynthesis.

What is photosynthesis?

Photosynthesis is a process by which green plants, algae, and some bacteria convert carbon dioxide and water into glucose (a sugar) and oxygen, using energy from light. This process takes place in chloroplasts within the cells of plants and is essential for life on Earth, as it produces the oxygen that other organisms breathe and the food that supports the food chain.

The glucose produced by photosynthesis is used by the plant as a source of energy or stored for later use. Additionally, the glucose can be converted into other sugars, starches, and cellulose, which are used to build plant tissues.

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what is the meaning of ecology.... please don,t miss this chance​

Answers

Answer:

Ecology is the branch of biology concerning the spatial and temporal patterns of the distribution and abundance of organisms,including the causes and consequences

Plant and animal cells have a lot in common. Compare and contrast the two cells. Select the features that you find in BOTH types of cells

A. Membrane, nucleus, ribosome
B. Membrane, chloroplasts, nucleus
C. Cell wall, cell membrane, nucleus
D. Cell membrane and cell wall, chloroplasts

Answers

Answer:

A

Explanation:

Both plant and animal cells have a cell membrane, a nucleus, and ribosomes in it.

Is the pH of Claire's small intestine below, within, or above the optimal range of each enzymes?

Answers

Answer: Protease is within

Lipase is within

Carbohydrase is within

Explanation:

Because a pH of 9.1 is within the green area for every graph, Claire’s pH is within the optimal range for every enzyme.

100 POINTS !
Match the numbers on the picture of the cell with the words below.

Cytoplasm
Golgi Apparatus
Nuclear Pores
Rough Endoplasmic Reticulum
Vacuole
Cell Membrane
Ribosome
Nucleus
Nucleolus
Smooth Endoplasmic Reticulum
Chloroplast
Chromatin
Mitochondria
Nuclear Envelope
Microtubule
Cell Wall

Answers

there is no picture :((((((((

Answer:

dude theres no picture

Explanation:

In a healthy ecosystem, which trophic level should
have the most energy? Why? *WILL MARK BRAINLIEST*

Answers

Answer:

Producer(plants)

Explanation:

They can produce there own energy and they help all of the other animals stay alive.

in a healthy ecosystem, the trophic level that should have the most energy is the producer.

WHAT IS TROPHIC LEVEL:Trophic level of an organism refers to the position of the organism in the flow of energy in an ecosystem.

Organisms feed on one another in an ecosystem to obtain energy needed for their metabolic activities.

More energy is contained in lower trophic levels than that of higher trophic levels. This means that, according to this question, more energy will be in the producers as the lowest trophic level.

Therefore, in an healthy ecosystem, the trophic level that should have the most energy is the producer.

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Steam is water in the gas form. What is a difference between an ice cube and
steam

Answers

One of the difference is that the ice cube is solid and gas is not.

why is the cell membrane often referred to as a "phospholipid bilayer"​

Answers

Answer:

Porque esta formada por dos capas de moléculas de lípidos

Explanation:

What does carbon becomes in the forest?

Answers

Answer:

photosynthesis i think

Explanation:


An autotroph is an organism that produces its own food from sunlight or
other inorganic substances.
True
False

Answers

Answer:

True

Explanation:

Autotrophs like plants uses the sun, carbon dioxide, and water to produce their foods

Answer:

true?

Explanation:

How are fats used in living things?

Answers

the third and fourth one definitely

Answer:

- store + transmit genetic information

- to store energy

- help insulate the body and protect from heat loss

Explanation:

________ is an example of the moon's gravitational force on Earth.​

Answers

Answer:

Waves!

Explanation:

Answer: tides

Explanation:

Tides are an example of the Moon's gravitational oull on the planet of Earth. The ocean rises because the moon and elements in the core act like magents, and the water goes up.

DNA nucleotides include
A thymine, guanine, uracil, and cytosine B thymine, uracil, adenine, and cytosine
C thymine, guanine, adenine, and cytosine
D thymine, guanine, adenine, and uracil​

Answers

Answer:

C

Explanation:

It has 2 pairs

Adenine and Thymine

Cytosine - Guanine

hope it helps

Answer:

C. thymine, guanine, adenine, and cytosine

"Absolutely unsure" is an example of which kind of figurative language?

Answers

Answer:

Oxymoron

Explanation:

Oxymoron is comparision of two opposite words placed right next to each other.

Answer:

An Oxymoron

Explanation:

An oxymoron is when a sentence contradicts itself to make a point, this is a popular writing device. Some examples are;

"awfully good"

"terribly nice"

"seriously funny"

mineral lab earth science

Answers

Answer:

What is the question?

Explanation:

Compare the three types of RNA. Note significant similarities and differences. Use the table below to record your observations. basically just finish this table lol...

Answers

Answer: (Structure) mRNA: always single stranded, rRNA: single stranded, twisted upon itself in some regions, tRNA: cloverleaf-like structure

(Function) mRNA: carries the information in the DNA to the ribosomes where it is translated into amino acids of proteins, rRNA: helps assemble tRNA, mRNA, and amino acids to form the polypeptide chain during protein synthesis, tRNA: acts as an adaptor molecule, which identifies correct amino acids corresponding to the anticodon present on it

Explanation: Plato, you're welcome

(Structure) mRNA: always single stranded, rRNA: single stranded, twisted upon itself in some regions, tRNA: cloverleaf-like structure.

(Function) mRNA: carries the information in the DNA to the ribosomes, rRNA: helps assemble tRNA, mRNA, and amino acids to form the polypeptide chain, tRNA: acts as an adaptor molecule.

What is mRNA, rRNA and tRNA?

mRNA carries instructions from the DNA to the ribosome work site. rRNA forms part of the structure of the ribosome and helps to connect pieces together. tRNA brings in the amino acids, which are the pieces that get strung together to make the final protein.

Moreover, the three major types of RNA are: mRNA (messenger RNA) : it provides the template for protein synthesis during translation, tRNA (transfer RNA) : it brings amino acids and reads the genetic code during translation, rRNA (ribosomal RNA) : it plays a structural and catalytic role during translation.

Therefore, the main difference between mRNA and tRNA is that mRNA serves as the messenger between genes and proteins whereas tRNA carries the specified amino acid into the ribosome in order to process the protein synthesis.

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What would most likely stop the cells in the liquid from shivering?

Answers

Answer:

Heat

Explanation:

Heat makes you start sweating which warms your body up, which makes your cells up.

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