What is the difference between a scientific theories and a scientific laws?

A theories
Blaws
Cevidence
DAll of the above

Answers

Answer 1
In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation for a phenomenon is called a scientific theory.

Related Questions

Identify three functions preformed by organ systems

Answers

Answer:

The question you've asked is not clear, you haven't specified which organ system are you talking about. No worries, I've noted down key functions of 11 organ systems of the human body, you can pick any of them that you want.

Some of the main functions of the 11 organ systems include the following:

Skeletal system:

shape/support for the body

protect some organs (brain, heart, lungs, spinal cord, etc.)

mineral storage (e.g., Ca and P)

site for muscle connections

site for blood cell formation

Muscular system:

movement

since there are three types of muscle—cardiac, smooth, and skeletal—there are specific functions for all of these

Cardiovascular system:

pump blood throughout the body

the blood will transport nutrients, oxygen, waste, and hormones

the blood also functions as a part of the immune system and allows the white blood cells/antibodies to gain access to infected/wounded areas

Excretory system:

produce and store urine in the kidneys and bladder

release urine through the urethra

Digestive system:

digest food into nutrients that can be absorbed

absorb nutrients

make certain vitamins (e.g., Vitamin K is made by bacteria in the large intestine)

Reproductive system:

the main function here is to produce offspring

another function—in line with the endocrine system— is to make hormones (e.g., testosterone and estrogen, which affect male and female characteristics)

Endocrine system:

hormone production

these hormones act throughout the body performing multiple jobs (e.g., blood sugar levels [insulin/glucagon], growth [growth hormone], male characteristics like facial hair [testosterone]

Integumentary system:

this is the skin

protection from some pathogens (unless you get a cut)

sensations at the skin level (texture, heat, pressure, pain)

Nervous system:

made of the central (brain and spinal cord) and peripheral nervous systems

this system transmits signals from one part of the body to another and this includes your senses

Respiratory system:

this mainly includes your lungs and trachea

the main function is the exchange of gases (oxygen and carbon dioxide)

Immune system:

the main function is to defend the body against pathogens

this is done with the help of the cardiovascular system which has white blood cells and antibodies in the blood

what is cell? and who discover it?​

Answers

Answer:

The cell was first discovered and named by Robert Hooke in 1665. it is the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm.

Explanation:

xx

Which statement best describes two objects experiencing a gravitational interaction?
A.
The objects can only repel each other and the force does not depend on their masses.
B.
The objects can only attract each other and the force depends on their masses.
C.
The objects can attract and repel each other and the force does not depend on their masses.
D.
The objects can attract and repel each other and the force depends on their masses.

Answers

The answer is D it showing the force depending on the mass

Roads are often built through forests for industrial purposes or as land is developed for residential and commercial needs. How would road construction through a forest most likely affect the ecosystem?.

Answers

They would cut down trees which when cut down release. This would then affect the air quality as trees absorb the carbon dioxide in the air. It is also destroying animals habitat

In this group, which percentage does the green seed
represent?
O 25%
O 50%
O 75%
Yellow
Yellow
O 100%
Yellow
Green

Answers

Green would represent 25%

The primary colors of visible light are red, orange, yellow, green, blue, and violet.
a. true
b. false

Answers

Answer:

its true

basically the colors of the rainbow

Explanation:

Environmental factors typically activate genes in a cell by causing the cell to —.

Answers

Answer:

Environmental factors typically activate genes in a cell by causing the cell to transcribe specific DNA segments to mRNA for translation.

Environmental factors typically activate genes in a cell by causing the cell to transcribe specific DNA segments to mRNA for translation. The correct option is D.

What are environmental factors?

This interaction is an illustration of how the environment influences how genes are expressed. In certain circumstances, the environment triggers the expression of particular DNA segments, which results in their transcription to mRNA and subsequent utilization as building blocks for proteins.

Other regions of the genome are left silent or are compelled to do so in the meantime. Mutations or straightforward biochemical interactions between the environment and the genome may cause this.

Therefore, the correct option is D. transcribe specific DNA segments to mRNA for translation.

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The question is incomplete. Your most probably complete question is given below:

A.produce identical daughter cells through mitosis

B.form haploid gamete cells through meiosis

C.fuse with another cell to increase the size of its genome

D.transcribe specific DNA segments to mRNA for translation

1. Which of the following is NOT an example of cell migration as a part of cell differentiation?

A.
mesenchyme cells forming mesoderm during gastrulation

B.
primitive streak formation in a chick embryo

C.
concentration of protein complexes during cleavage

D.
convergent extension to elongate the archenteron in the sea urchin

2 .What is the role of cleavage in embryonic development?

A.
Cleavage allows for rapid development of a large number of smaller cells.

B.
Cleavage promotes differentiation of cells into germ layers.

C.
Cleavage prevents polyspermy.

D.
Cleavage plays a role in apoptosis, not in embryonic development.

Answers

The option that isn't an example of cell migration as a part of cell differentiation is C. concentration of protein complexes during cleavage

What is a cell?

It should be noted that a cell simply means the basic unit of life. Cell migration is the evolutionary process that allows cells to move.

The role of cleavage in embryonic development is that cleavage plays a role in apoptosis, not in embryonic development.

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12.
A lizard species mostly eats fruit from one
particular type of tree. If a virus kills most of
these trees, which individual lizards will most
likely survive?
A.
lizards that can climb higher in the fruit trees
B.
lizards that have darker coloration
C.
lizards that can find other types of food
D.
lizards that produce more offspring

Answers

Answer:

C. lizards that can find other types of food

Explanation:

The others age not relevant to the information given.

Please mark brainliest

someone answer please I need someone to answer

Answers

Both of the cycles would be affected. If the oil goes into water this can harm fish populations , and since there are more harmful chemicals in the air the air will be more dangerous. Hope this helped:)

Which occurs during translation?
mRNA is created by using a DNA template.
mRNA codons are joined by tRNA anticodons to assemble amino acids to form a protein.
Protein is formed when a polypeptide chain is broken apart and released from ribosome.
One strand of DNA is copied into a strand of rRNA.

Answers

B.  mRNA codons are joined by tRNA anticodons to assemble amino acids to form a protein.

The correct amino acids are brought to the ribosome by tRNA.

mRNA codons are joined by tRNA anticodons to assemble amino acids to form a protein is occurs during translation.

What are the steps of translation?

Translation is the procedure by which the mRNA codes for a specific protein. All the while, the ribosome interprets the mRNA created from DNA into a chain of explicit amino acids.

In the pathway of gene expression, protein synthesis is an essential process and a crucial control factor. Translation regulation is essential for maintaining homeostasis in both the cell and the organism and plays a prominent role in most cell processes.

Translation is the process of making a polypeptide chain from mRNA codons. tRNA charging, initiation, elongation, and termination are the four stages.

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What general term is used to describe the introduction of foreign dna into a cell?.

Answers

Transfection is the process by which foreign DNA is deliberately introduced into a eukaryotic cell through non-viral methods including both chemical and physical methods in the lab.

Which animal trait was Darwin's theory of natural selection based on? (1 point)
O swimming ability of Galápagos iguanas
O beak morphology of Galápagos finches
O predatory behavior of foxes
o coloration of peppered moths

Answers

Answer:

beak morphology of Galápagos finches

Answer:

Beak Morphology.

Explanation:

His theory was based off of the finches from different areas and their ability to pick up food. The beak shape was based off of the diet of the bird. For example, if a finch had a diet consisting of seeds, it had a dense, powerful beak that was able to crush the seed.

In the presence of penicillin, a cell dies because.

Answers

A cell dies because it undergoes lysis.
Answer:

Because the cell undergoes the process of lysis.

Explanation:

Name the following molecular compounds: CO, N2O4, PCI3.

Answers

Answer:

CO = carbon monoxide

N2O4 = Dinitrogen tetroxide

PCl3 = Phosphorus trichloride

Prokaryotes are organisms that do not have defined nuclei in their cells. Eukaryotes are organisms that have cells with membrane-bound nuclei. In which of the following kingdoms are prokaryotes found?

A. Plant and Animal only

B. Bacteria and Archaea only

C. Bacteria, Archaea, Protist and Fungus only

D. Protist, Fungus, Plant and Animal only

Answers

Answer: I took it this year so I am sure the answer is c .

The systemic circulation is movement of blood from the ______ side of the heart to the systemic cells of the body and back to the ______ side of the heart.

Answers

Systemic circulation involves the movement of blood from the right ventricle of the heart to the cells of the body and back to the heart through the right atrium.

Systemic circulation

It is a form of blood circulation through which functional blood is supplied to all the cells and tissues of the body.

The system starts with oxygenated blood leaving the right side of the heart through the ventricle.

The blood travels through arteries to different cells/tissues of the body, supplies them with oxygen and vital nutrients, and picks up waste materials simultaneously.

Deoxygenated blood then travels through veins back to the heart through the right atrium.

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What is the main difference between your ventricles and your atria?.

Answers

Answer:

The two atria are thin-walled chambers that receive blood from the veins. The two ventricles are thick-walled chambers that forcefully pump blood out of the heart.

Explanation:

hope this helps

O A. Spindles
O B. Chromatids
O C. Centromeres
O D. Gametes

Answers

Answer:

D. Gamates

Explanation:

Meiosis is a cell division that ends up producing gamates as sperm or egg cells.

The amniotic egg, which is present in reptiles, birds, and mammals, is a good example of: horizontal gene transfer. coevolution. homology. convergent evolution. analogy.

Answers

The amniotic egg, which is present in animals such as reptiles, birds, and mammals, is a good example of homo-logy.

What is homo-logy?

The term 'homo-logy' makes reference to the same evolutionary origin (ancestor) for a given structure.

A structure and/or sequence is homo-logous when it derives from the same evolutionary ancestor.

Conversely, an analogy means that the structure and/or nucleotide sequence do not share an evolutionary origin.

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How many breeds of elephant are there?

Answers

Answer:

3

Explanation:

Answer:

There are 3 different species or breeds of elephants.

Explanation:

They are:

- The African Savanna aka Bush Elephants

- The Asian Elephants

- The African Forest Elephants


I hope it helps! Have a great day!

Anygays-

Julia made a model of a cell in a clear plastic zipper bag. She used a marble for the nucleus and pinto beans for mitochondria.

Which of the following options would be best for making her model more like a plant cell?
A.
Put the bag inside a clear plastic box.
B.
Put the bag inside a larger clear plastic bag.
C.
Take the marble out of the bag.
D.
Take the pinto beans out of the bag.

Answers

D. mitochondria is only in cellular respiration, so a plant cell would not need it, plus the bag is square

Answer:A

Explanation:I did this 1

How are spores similar to seeds?​

Answers

Answer:

Spores grow and spread, similar to seeds, yet only in a larger amount.

__________________________________________________________

Questions?

Ask in the comments box.

Question 1 (2 points)
What are two lesser-known functions of the kidneys (via released hormones and
prostaglandins)?
reproductive cell transportation and bone marrow production
aiding in digestion and extracting carbon dioxide from blood
white blood cell production and repairing nerve cells
O red blood cell production and destroying pathogens

Answers

I believe the answer would be aiding in digestion and extracting carbon dioxide from blood.

Explanation: Bone marrow production stops when a child reaches maturity. White blood cells are produced from bone marrow, and O red cells are produced from red bone marrow, leaving the only answer left by process of elimination as B. Kidneys are also responsible for keeping ph balance, sodium and electrolyte balance, along with the balance of other vitamins and minerals in the blood.

why is anaerobic respiration useful?​

Answers

Answer:

It is useful during exercise. When the body doesn't get enough oxygen during exercise, it relies on anaerobic respiration for an energy supply. Instead of carbon dioxide and water, however, anaerobic respiration produces lactic acid. Also, anaerobic respiration releases less energy than aerobic respiration but it does this more quickly.

Hope this helped.

- profparis

Answer:

many of our foods are produced by microorganisms respiring anaerobically.

Shannon is making a Venn diagram to organize the characteristics of cell walls and cell membranes. Which pair of characteristics both belong in the two areas of the Venn diagram that do not intersect?

helps with communication; contains mostly cellulose
contains mostly cellulose; forms the outer layer of animal cells
is found in plant cells; is found in animal cells
is semipermeable; found in animal cells

Answers

Answer:

uyy

Explanation:

 nb gh

Answer:

contains mostly cellulose; forms the outer layer of animal cells

Explanation:

Which change could likely happen if the average temperature increased in an ecosystem?.

Answers

If the average temperature increased in an ecosystem then Some organisms would not be well-adapted to the higher temperatures.

What are the 4 types of ecosystems?

They are as follows:

Forest Ecosystems.Grassland Ecosystems.Tundra Ecosystems.Desert Ecosystem.

Thus,  Some organisms would not be well-adapted to the higher temperatures.

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if two organisms have the same name in it does it mean they are closely related?

Answers

Answer:

yes

Explanation:

similar structure can indicate relatedness

which of the following occurs during a lysogenic cycle?​

Answers

Viral DNA is replicated and the host cell isn’t destroyed.

help please
A cell is in a solution that contains dissolved oxygen. What occurs when the cell uses oxygen for respiration?

A.

Oxygen will be carried across the cell membrane by special transport molecules.

B.

Oxygen will be held in place within the solution by special transport molecules.

C.

Oxygen in the cell will naturally diffuse into the solution.

D.

Oxygen in the solution will naturally diffuse into the cell.

Answers

Answer:

D.

Explanation:

As the oxygen inside the cell is utilized by the cell for respiration, therefore the concentration of oxygen inside the cell decreases and the oxygen in the solution naturally diffuses inside the cells through simple diffusion.

What is dissolved oxygen?

Dissolved oxygen is the amount of oxygen that is dissolved in a particular solvent. The dissolved oxygen in water comes from the atmosphere. The aquatic plants that produce the oxygen also contribute to the dissolved oxygen in water bodies.

Aquatic organisms require dissolved oxygen for respiration as they cannot take up oxygen from the atmosphere. Oxygen in water can be measured as milligrams per liter or the percent saturation.

In the RBCs, the oxygen combines with the hemoglobin and is transported by hemoglobin-facilitated diffusion or through simple diffusion in which the oxygen crosses the plasma membrane and is transported to the blood plasma through diffusion.

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