calculate the surface area of a sphere with a radius of 2 meters

Answers

Answer 1

Answer:

16[tex]\pi[/tex]

Explanation:

the surface area of a sphere is 4[tex]\pi[/tex]r^2

so r as 2 would mean the surface area is 16[tex]\pi[/tex] or about 50.265 meters squared.


Related Questions

How would the inherited traits discussed in this lesson be influenced if those alleles were on a s3x chromosome? Would the probability of inheritance change?

(an example"traits discussed" is wired haired dogs and smooth coated dogs)

I'd really appreciate the help! :D

Answers

The discussed inherited traits would not be influenced if these alleles were on an s3x chromosome, the probability of inheritance would not change.

To understand the answer, we need to know about s3x chromosomes

What are s3x chromosomes?

Females have two identical chromosomes (XX), while males have an X chromosome and a smaller chromosome called a Y. Human males are heterogametic with two different s3x chromosomes (XY). Human females are the gametic s3x (XX).

With this information, we can conclude that the discussed inherited traits would not be influenced if these alleles were on an s3x chromosome, the probability of inheritance would not change.

Learn more about alleles in brainly.com/question/7602134

How would a rock's weight on the Moon or the Sun compare to its weight on Earth? Assume that the rock would not burn up.
A.
It would weigh less on the Moon and more on the Sun.
B.
It would weigh less on the Moon and on the Sun.
C.
It would weigh more on the Moon and less on the Sun.
D.
It would weigh more on the Moon and on the Sun.

Answers

A.

because moon has less gravitation and sun has more, depending on their mass.

17.List in order the following from least to most complex:
a. Muscular system, muscle tissue, biceps muscle, muscle cell
b. Heart, cardiac muscle, muscle tissue, muscle cell
c. Lung tissue, trachea, nostrils, circulatory system
d. Integumentary system, skin cell, hair, sweat gland

Answers

Answer:

The answer would be a Muscular system, muscle tissue, biceps muscle, muscle cell :)

Link with more thoughts here: https://brainly.com/question/12003752?referrer=searchResults

Have an amazing day!!

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Which part of a sound wave measures loudness? O wavelength O magnitude O amplitude O frequency​

Answers

Amplitude.

Wavelength and frequency are related to the tone/pitch of the sound.

Magnitude does not apply to sound waves.

The pharynx functions as a passageway for __________, whereas the larynx functions as a passageway for __________.

Answers

The Pharynx is the passageway way for food

The Larynx is the passageway for air


Pharynx

The Pharynx is a long tube that is located in the throat region, it helps in the smooth passage of food from the mouth and down to the stomach where it is needed for body metabolism


Larynx

The larynx helps in the free flow of air, it is sometimes called the voice box. It plays a vital function by blocking the windpipe from taking in food particles


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Please help!! Not sure about this question. Is it A or B? I think it’s one of those two

Answers

Answer:

Your answer is also B. it has caused the shoreline to erode.

It has caused the shore line to erode. Therefore, option (B) is correct.

What are ocean waves?

Ocean waves are the result of the interaction between the ocean and the wind. They are the most visible and powerful manifestations of the Earth's oceans. Ocean waves vary in size, shape, and speed, depending on the wind's strength, duration, and direction. They can range from small ripples to massive swells and can travel thousands of miles before breaking on shorelines.

The energy of ocean waves is harnessed for various purposes, such as surfing, fishing, and generating electricity through wave energy converters. However, ocean waves can also be destructive, causing erosion and flooding in coastal areas during storms.

Ocean waves play a crucial role in regulating the Earth's climate by transferring heat and energy from the tropics to the poles. They also help distribute nutrients and oxygen to marine life, and their movement influences the ocean's circulation patterns.

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which statements best compare the function of an ATP molecule to a DNA molecule

Answers

ATP helps in muscle contraction, active transport, formation of lysosomes, etc., while DNA carries all the genetic information related to an organism.

What do you mean by DNA molecule?

The DNA molecule may be defined as the molecule that carries the genetic information for the development and functioning of an organism.

ATP delivers energy for chemical reactions in the cell. DNA maintains and communicates the genetic information of organisms.

Therefore, the above statement that best compares the function of an ATP molecule to a DNA molecule.

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The menisci found in some synovial joints are attached to the ______ at the periphery of the joint cavity.

Answers

Answer:

joint capsule.

Explanation:

The hormone ________ signals feelings of fullness to the brain.

Answers

Answer:

leptin

Explanation:

Another hormone, Leptin, produced by fat cells, is an Adiposity signal that communicates with the brain about long-range needs and satiety, based on the body's energy stores. Research suggests that Leptin amplifies the CCK signals, to enhance the feeling of fullness

Based on your knowledge of energy flow and light absorption, which color(s) of light will provide energy for photosynthesis? (select all that apply) question 2 options: red orange green blue violet

Answers

Answer:

RED and BLUE

Explanation:

Special pigments in chloroplasts of plant cells absorb the energy of certain wavelengths of light, causing a molecular chain reaction known as the light-dependent reactions of photosynthesis. The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm).

Red and blue as the best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm).

Which colors of light are most absorbed for energy during photosynthesis?

Chlorophyll is the pigment responsible for photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.

The chlorophyll pigments mainly absorb blue and red light. Maximum absorption is in blue light but maximum photosynthesis occurs in red light

Thus, the answer is red and blue.

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In your own words, write a paragraph that explains how evidence since Darwin's time has
strengthened his theories

Answers

Answer:

Charles Darwin proposed one of the theory of evolution which can still be observed till date in organism.

Organism have numerous offsprings and only the offspring with characteristics to overcome unfavorable conditions survive and passes such genes to their offsprings

Which is included in a lysogenic cycle? early lysis of the host cell the creation and assembly of viral particles the appearance of viral infection symptoms a period of genetic integration

Answers

The lysogenic cycle includes the early lysis of the host cell that involves the incorporation of the viral genome into the host cell genome.

What do you mean by the Lysogenic cycle?

A lysogenic cycle may be defined as a method by which a virus can replicate its DNA using a host cell.

In the lysogenic cycle, the viral DNA gets integrated into the host's DNA but viral genes are not expressed. Lysogeny is characterized by the integration of the bacteriophage nucleic acid into the host bacterium's genome.

Therefore, the lysogenic cycle includes the early lysis of the host cell that involves the incorporation of the viral genome into the host cell genome.

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What factors contribute to uranus experiencing "the most extreme seasons in the solar system"? relate this to how earth experiences seasons. (use cer as a resource, 4-5 sentences.

Answers

Uranus have extreme seasons due to its unique tiltation of 82 degrees

Why does Uranus have extreme seasons?

The orbit of Uranus is circular which maintains the same distance from the Sun throughout year. But Uranus is tilted about 82 degrees which gives rise to extreme 20-year-long seasons and unusual weather.

So we can conclude that Uranus have extreme seasons due to its unique tiltation.

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A piece of dna that is used to carry a gene of interest into a cell is known as what?.

Answers

Plasmid carries a gene into a cell

A piece of DNA that is used to carry a gene of interest into a cell is known as Vector. This is because it is a vehicle that significantly carries foreign DNA molecules into the host cell.

What is Gene?

Gene may be defined as a stretch of DNA that has genetic information. It is the nucleotide sequence that has the ability to produce a functional protein or enzyme.

According to the context of this question, a vector is commonly used in recombinant DNA technology. It is a double-stranded, circular extrachromosomal DNA that is separated or detached from the genomic DNA.

It has quite a difference with plasmid. The Plasmid is generally an extrachromosomal element of the bacterial cell.

Therefore, a vector is a piece of DNA that is used to carry a gene of interest into a cell.

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PLEASE HELP!!! I WILL GIVE BRAINLIEST TO THE FIRST ANSWER!!!

Answers

Answer:

X^wY

Explanation:

If it's referring to number 9 on that page, I think this is the answer. Since the male has a recessive trait of being white-eyed, it would need that lower case allele and only have one X trait instead of two like the female.

Conclusion
1. How did scientists discover that all living things are made of cells?
2. How did Pasteur’s experiment with the flasks help disprove the idea that living things could just appear or come from nonliving things like water and air?
3. Why are nutrients needed for living things? Describe the difference between living and nonliving things.

Answers

Explanation:

i think nimber 3 is this

They need nutrients for their metabolism, function and distribution, and non-living organisms do not

What are invasive species? how do they impact the ecosystem

Answers

Answer:

disorder in the ecosystem

Explanation:

Invasive species are organisms from different ecosystems that somehow find their way to a different one. The ecosystem that they arrive in cannot be prepared to receive them and the invasive species, these species may not have predators or characteristics that help them to feed or reproduce quickly. This causes a disorder in the ecosystem that can wipe out entire species and if a species disappears in a chain many others will be affected.

what are the differences between plant cell and animal cell​

Answers

Explanation:

Plant cell:

It is found only in plants.

It consists of cell wall.

Animal cell:

It is found only in animals.

It does not consists of cell wall.

Answer:

The main structural differences between plant and animal cells are the additional structures found in plant cells. These structures include: chloroplasts, the cell wall, and vacuoles.

Chloroplasts

In animal cells, the mitochondria produces the majority of the cells energy from food. Plant cells use sunlight as their energy source; the sunlight must be converted into energy in a process called photosynthesis. Chloroplasts are perform this function.  The energy conversion in plants is a complex set of reactions similar to those performed by mitochondria in animals

The Cell Wall

Another structural difference between in plant cells is the presence of a rigid cell wall surrounding the cell membrane. The tough wall gives added stability and protection to the plant cell.  If you think about it, most animal cells are inside an organism that has either an exoskeleton or an endoskeleton,  built in structure.  Plants don't have a skeleton of any kind so the cells have to perform this.

Vacuoles

Vacuoles are large, liquid-filled organelles found only in plant cells. Vacuoles can occupy up to 90% of a cell's volume and have a single membrane. Their main function is as a space-filler in the cell, but they can also fill digestive functions and their interiors can be used as storage for nutrients.  

Both plant and animal cells comprise membrane-bound organelles, such as endoplasmic reticulum, mitochondria, the nucleus, Golgi apparatus, peroxisomes, lysosomes. They also have similar membranes, such as cytoskeletal elements and cytosol. The plant cell can also be larger than the animal cell. The normal range of the animal cell varies from about 10 – 30 micrometres and that of plant cell range between 10 – 100 micrometres.

(20 points!)
In order to survive, animals need to adapt to their environment over many generations. Think about your favorite animal, its physical features, and its environmental challenges. Without doing any outside research, in 3-5 sentences, try to: a) describe what features have likely had to adapt to its environment over time, and b) hypothesize what ways it might have to adapt to environmental changes in the future.

Answers

Birds are animals that have wings to fly, which can be adapted (modified) to regions where winds are more intense.

What is adaptation?

Adaptation refers to the emergence of traits capable of facing challenging environmental conditions.

In birds, wings are an adaptive trait of this taxonomic group, which can be modified according to the environment.

In regions where winds are more intense, wings can take different anatomical forms in order to resist these environmental conditions.

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for animal cells a ____ starts devloping from the outside of the cell and will eventually spluit the cell into two

Answers

for animal cells a cleavage furrow starts devloping from the outside of the cell and will eventually spluit the cell into two

What makes a judas goat stop being social?

Answers

Answer:

anxiety

Explanation:

Primary ossification centers develop in long bones in the:.

Answers

Answer:

diaphysis/shaft

Explanation:

In long bones the primary centers occur in the diaphysis/shaft and in irregular bones the primary centers occur usually in the body of the bone.

Desensitization to prevent an allergic response can be accomplished by injecting repeated doses of: Group of answer choices IgE antibodies the antigen (allergen) histamine IgG antibodies antihistamine

Answers

Desensitization to prevent an allergic response can be achieved with doses of the antigen.

How do these doses of Antigen cause desensitization?

The small and controlled doses of antigen (allergen) can cause desensitization to said allergy. This is because they allow the body to slowly build up natural defenses to this antigen, allowing it to be better prepared to combat said antigen during the next exposure.

Therefore, we can confirm that desensitization to prevent an allergic response can be achieved with doses of the antigen.

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More efficient plumbing reduces water pollution by _______.
a.
using more water
b.
using less water
c.
using cleaner water
d.
using dirty water


Please select the best answer from the choices provided

A
B
C
D
lets r-p

Answers

Answer:

Explanation:

You have two good reasons for good plumbing

Clean waterUsing Less water.

Plumbing also includes things like waste disposal. Modern toilets for example use less water.

Health and well being are important. Good plumbing increases your chances of the water being clean and germ free.

I don't know which answer to pick. I think well being is more important than using slightly less water.

Answer: C

Answer:

B

Explanation:


one difference between viruses and cells is that viral particles have a..?
a nucleic acid within a capsid
c membrane-bound cytoplasm
b cell wall within a capsule
d membrane-bound chromosome

Answers

One major difference between viruses and other cells is that viral particles have nucleic acid located within a capsid.

Structure of a virus

Viruses are made up essentially of ribonucleic or deoxyribonucleic acids enclosed in a proteinous shell known as capsids.

This is unlike other cells in which their nucleic acids either lie freely within the cytoplasm of their cells or are enclosed in a double membrane structure known as the nucleus.

Viruses are essentially non-living when outside a living host.

More on viruses can be found here: https://brainly.com/question/2401502

Enzymes _______ the activation energy threshold required to start a chemical reaction.
raise
lower

Answers

Answer:

lower

Explanation:

Enyzmes usually lower the activation energy required to start a chemical reacion. It's useful to remember enyzmes as compounds which help speeden up different chemical processes. They do this by decreasing the required activation energy and therefore increase the chance of a chemical reaction occuring. 

Enzymes lower the activation energy threshold required to start a chemical reaction.

  Definition of Enzymes: a substance produced by a living organism which

  acts as a catalyst to bring about a specific biochemical reaction.

Hope that helps!

In what ways are the chemical reactions of photosynthesis and cellular respiration similar?.

Answers

Answer: Both produce energy.

Explanation: Both provide each other with the necessary ingredients for the process to take place: glucose and oxygen for cellular respiration, carbon dioxide and water for photosynthesis.

How long does it take for watermelon seeds to germinate.

Answers

Answer:

4-12 days

Explanation:

Watermelon Seeds will germinate in 4–12 days.

Use the drop-down menus to determine which structures of the exocrine system are described below. secrete mucus that protect organs secretes enzymes that aid in digestion secrete tears keep the skin hydrated and soft

Answers

Answer:

✔ goblet cells

secrete mucus that protect organs

✔ pancreas

secretes enzymes that aid in digestion

✔ lacrimal glands

secrete tears

✔ oil glands

keep the skin hydrated and soft

Explanation:

On edge

Answer:

goblet cells: secrete mucus that protect organs

pancreas: secretes enzymes that aid in digestion

lacrimal glands: secrete tears

oil glands: keep the skin hydrated and soft

All of the following are types of somatoform disorders except __________. a. conversion disorder b. obsessive-compulsive disorder c. somatization disorder d. hypochondrias please select the best answer from the choices provided a b c d

Answers

Answer:

is the answer is C.....??

Somatoform disorder is the physical sensations and body pain caused by mental illness and is grouped in somatization disorder, conversion disorder, pain disorder, hypochondriasis etc.

What is Somatoform disorder?

Somatization disorder is a type of disorder when a person regularly complains about physical symptoms when there is no physical condition present to cause the symptoms.

The symptoms of this condition tends to increase anxiety and stress. The types of somatoform disorders are:

Somatization disorder.Conversion disorder.Pain disorder.Hypochondriasis.Somatic symptom and related disorder.

Thus, obessive-compulsive disorder is not included in this. So, the correct option is option B.

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