who discovered that white light is a spectrum of colours rays

Answers

Answer 1

Answer:

Isaac Newton

Explanation:

Isaac Newton discovered that white light is a spectrum of seven colour rays.


Related Questions

Approximately how many mutations occur naturally in DNA per 10,000 bases?
A. 2
B. 2000
C. 200
D. 20

Answers

Explanation:

Modern methods indicate that the mutation rate is roughly one to two mutation per 10,000 genes per generation.

In human cells, approximately TWO (2) MUTATIONS occur naturally in DNA per 10,000 bases (Option A is correct).

The mutation rate (u) refers to the occurrence of new mutations in a given nucleotide sequence over time.

In human cells, the mutation rate is approximately 10⁻⁴ per generation.

Therefore, in a DNA sequence that has 10,000 base pairs of length, this value is equal to 2 mutations per generation (u = 2 / 10,000 = 10⁻⁴).  

In conclusion, approximately 2 MUTATIONS occur naturally in DNA per 10,000 bases (Option A is correct).

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The human heart weighs how many pounds

Answers

After careful consideration your answer is...

Just about 1 pound

*Hope I helped*

~Alanna~

1 lb (pound)

Explanation:

it is the answer.

what is the average lifespan of a sperm cell​

Answers

[tex]Hello[/tex] [tex]There![/tex]

The answer is...

5 days at least.

Good luck!

[tex]AnimeVines[/tex]

Explanation:

the answer is up to 5 days

Why do doctors have to check what blood type a person has before receiving a
transfusion?
0
A. Different blood types have different antibodies that will be attacked by someone with
antigens against that blood type.
B. Different blood types have different antigens that will be attacked by someone with
antibodies against that blood type.
C. Your blood type doesn't matter as long as you get the correct amount of blood in a
transfusion.
O
D. They need to have the same blood type because their DNA must be similar enough to
blend or will cause side-effects and possibly be rejected.

Answers

Answer:

A. Different blood types have different antibodies that will be attacked by someone with

antigens against that blood type.

state te type of cell devision of cross section tips of onion root.​

Answers

mitosis and/or meiosis is the anwser

Carbohydrates info
A. AKA:
B. Composed of:
C. Monomer:
D. Polymer:
E. Functions:

Answers

A: Carbs
B:Carbon, hydrogen and oxygen
C:Monosaccharides
D:Polysaccharides
E: Provides energy to the human body.

Which type of plate boundary would be most likely to lead to above-ground volcanic activity?

A . Subduction
B .divergent
C.collisional
D . Transform

Answers

Answer:

A.Subduction

Explanation:

In a subduction zone, one plate slides beneath another. This leads to friction that can melt the crust and result in volcanic activity

All enzymes which catalyze the chemical reactions of a cell are
a. carbohydrates b. lipids c. long-chain fatty acids d. proteins e. ribonucleic acids no another by differences in​

Answers

Answer:

I think the answer will be protein.

Answer:

the answer is carbohydrates

Science, Geology, Class 8

1. choose the correct answer ( CTCA )
a. what makes the soil fertile?
i. rock particles
ii. humus
iii. sand particles
iv. silt particles​

Answers

Answer:

Humus

Explanation:

Also known as the uppermost layer of soil, that's for making soil more fertile due to its organic content.

Look at the branching tree diagram below.

A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right with the following traits Four limbs, Amniotic egg, Fur, Shearing teeth, and Retractable claws. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Amphibians, Reptiles, Marsupials, Dogs, Cats.

Which group of organisms evolved after dogs?

Only cats
Only marsupials
Both cats and marsupials
Both amphibians and reptiles

Answers

Answer:

both cats and marsupials

Answer:   Both Amphibians and Reptiles

Explanation: I took the test and got it, so.....

We have all heard about earthquakes or the cyclones that attack the coastal regions. Think of as many different ways as possible in which people's health would be affected by such a disaster if it took place in our neighbourhood. (a) How many of these health -related events would occur long after the actual disaster, but would still be because of the disaster? (b) How can it affect the life of people if in case of a pandemic?

Answers

Answer:

The disease spread to the neighbourhood.

Explanation:

If the disaster such as earthquake and pandemic etc occurs in the neighbourhood so it also affected the health of the people of that region as well as the people that lives in the neighbourhood. In the case of pandemic, the disease spread to the neighboring area and affect the health of people while on the other hand, in earthquake the people of neighbourhood is also affected if the intensity of earthquake is higher.

If you have a measurement of 234.005 k, how many significant figures does it have

Answers

Answer:

It has 6 sig figs

Explanation:

235.005

Every digit is significant.

Why do plant cells have chloroplasts?

Answers

Answer:

The chloroplast has chlorophyll and the chloroplasts also helps with makes photosynthesis happen. It takes the suns energy and turns it into energy for the plant. So it uses solar energy and makes chemical energy.

Explanation:

Is a ping pong ball a nonliving or living thing and why

Answers

Answer:

A ping pong ball is nonliving because it does not have a brain or living cells. It is plastic.

What group of archaebacteria is both thermophilic and acidophilic?
Pyrogens
Methanogens
Thermoacidophiles
Halophiles

Answers

Answer:

Thermoacidophiles

it would be thermoacidoohiles

Which organ system in the human body is responsible for the transportation of nutrients, gases, wastes and blood?
a) cardiovascular system
b) respiratory system
c) excretory system
d) immune system​

Answers

Answer:

The cardiovascular system delivers oxygen and nutrients to cells and takes away wastes.

I hope this will help you if not then sorry, have a great day :)
The cardiovascular system is one of the eleven organ systems of the human body. Its main function is to transport nutrients to cells and wastes from cells

In almost all criminal cases, eyewitnesses are used in order to build a case for someone’s innocence or guilt. Should eyewitness accounts be the sole evidence used to convict the accused? Explain your view.

Answers

Answer:

Explanation:

No never.

There is a famous psychology experiment where people sit in classroom in such a way that the person on either side of you can't hear what you say. This works best with more than 20 people.

The first person composes a sentence that has 3 facts in it. He whispers it to the second person who relays it to the third until the last person is told. The point of the experiment is to show that the last person isn't normally able to correctly repeat the 3 facts. In fact, most often what is given is quite mixed up and incorrect.

That's what's wrong with eye witness accounts. You can be certain of what you saw. You can also get it all mixed up.

Using the following nucleotide sequence, predict the complementary strand sequence:
5'-TTAAACCCGTTGGAAC-3'



5'-AATTTGGGCAACCTTG-3'

3'-AATTTGGGCAACCTTG-5'

03-CCGGGTTTACCAAGGT-5'

0 3'-TTAAACCCGTTGGAAC-5'

Answers

The predicted the complementary strand sequence for 5'-TTAAACCCGTTGGAAC-3' is 3'-AATTTGGGCAACCTTG-5'.

What is DNA?

Deoxyribonucleic acid or DNA is a double helix molecule composed of two complementary strands.

According to the base pair rules, Adenine pairs with Thymine and Guanine pairs with Cytosine.

In conclusion, the predicted the complementary strand sequence for 5'-TTAAACCCGTTGGAAC-3' is 3'-AATTTGGGCAACCTTG-5'.

Learn more about base complementarity here:

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Answer:

Your answer would be AATTTGGGCAACCTTG-5′

Explanation:

Which major processes were needed for the origin of life on Earth?

Answers

Answer:

I think it's a climate

Does anyone know the answer for 1?

Answers

The correct answer of question number 1 is D. Sill

What is the powerhouse of the cell called?

Answers

Mitochondria is called the powerhouse of the cell.

Hope this helps! Have a great day :)

Mitochondria are known as the “powerhouse of the cell.”

Which of these is the main cause of habitat fragmentation? O A. Reduction in genetic diversity O B. Migration of mammal species O C. Demand for land use O D. Extinction of bird species​

Answers

Answer:

C. Demand for land use

Explanation:

Habitat fragmentation usually occurs because of human activities such as new roads, parking lots, and housing developments. Organisms need their specific habitat for survival, and fragmentation is a leading threat to many terrestrial animals.

Why is the unit of velocity called derived unit?​

Answers

Answer:

Because it is a vector quantity, it has a direction too such that derived unit is made up of two or more fundamental units. That is mere and second. That is why it is called as a derived unit as its unit is metres per second.

Hope this helps...Have a good day!!

What is one of the causes of mechanical weathering?

A. acid rain
B. oxidation
C. animal actions
D. carbon dioxide

Answers

C. animal actions

Others are chemical examples.

i think your answer might be animal actions

Pls Answer it for 50 points pls What is arsenic???

Answers

Arsenic is natural element widely distributed in the earth's crust.

There are two forms of arsenic organic and inorganic.

Symbol: As

Electron configuration: [Ar] 3d¹⁰4s²4p³

Atomic number: 33

Atomic mass: 74.9216 u

Electronegativity: 2.18

Answered by Gauthmath must click thanks and mark brainliest

how does baby get its shape in the womb of an woman?​

Answers

Answer:

Uterus (also called the womb): The uterus is a hollow, pear-shaped organ located in a woman's lower abdomen, between the bladder and the rectum, that sheds its lining each month during menstruation. When a fertilized egg (ovum) becomes implanted in the uterus, the baby develops there.

Individuals with a mutation in the gene for apolipoprotein B-100 produce very low levels of this protein, which is a component of LDL. How would accumulation of fat in the liver be affected and would this result in hypercholesterolemia or hypercholesterolemia

Answers

Answer:

Fats would accumulate in the liver and the individual would show hypocholesterolemia

Explanation:

Familial hypercholesterolemia is a genetic disorder caused by a reduction and/or defect in the low-density lipoprotein (LDL) receptor. Moreover, apolipoprotein B is the unique protein component of LDL, which plays a critical role in lipid metabolism by binding the LDL receptor. Familial defective apolipoprotein B-100 refers to an inherited disorder associated with mutations of the apolipoprotein B-100 that leads to moderate or severe cases of hypercholesterolemia. Mutations in apolipoprotein B-100 are associated with a reduction in the binding capacity of LDL to the LDL receptor, thereby leading to hypercholesterolemia.

What is the correct structure of ATP? A. Ribose sugar, Adenine base, 3 Phosphate groups B. Triglyceride head, Ribose sugar, 3 fatty acids C. Ribose sugar, Phosphate group, Nitrogen Base D. Deoxy Ribsose sugar, Adenine base, 3 Phosphate groups

Answers

Answer:

The correct structure of ATP is

A. Ribose sugar, Adenine base, 3 Phosphate groups

Explanation:

The structure of ATP is a nucleotide, consisting of a nitrogenous base (adenine), a ribose sugar, and 3 serially bonded phosphate groups.

Differentiate between communicable and non-communicable diseases. Give one example of each​

Answers

Answer:

hope this helps helps you a lot

my handwriting is bad sorry for that bhai

In the Avery, MacLeod, and McCarty experiment, the transforming extract from virulent bacteria was treated with DNase, RNase, or protease before being mixed with nonvirulent bacteria. The appropriate control for this experiment is to treat the transforming extract from heat-killed virulent bacteria with:

Answers

Answer:

Nothing

Explanation:

A. Control variables generally entail little or no system change. To see if the method worked, the researchers required a positive control in which the heat-killed virulent bacteria invariably transformed the non-virulent microorganisms. This positive control involves adding "nothing" to both the heat-killed virulent bacteria before mixing them with the non-virulent bacteria.

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