Why do cells need to divide?
they all must remain the same size
b.
to make it easier to communicate within the cell
to help limit waste
d.
none of the above

Answers

Answer 1

Answer:

b is the answer i wish it help you


Related Questions

. What process is shown in the figure below?​

Answers

Answer: I didn't see it yet

Explanation: I didn't see it yet

Which of the following traits could be passed
down (inherited) from parents?
Having blue eyes
O knowing how to ride a bicycle
O Knowing how to read
Having short fingernails

Answers

Answer:

Have blue eyes

Is e.coli similar to or different to animal cells

Answers

Answer:

I'm going to say that the e.coli is different from the animal cell.

Please help, if question is right I will give brainliest.

Answers

Answer:

Flagella

Explanation:

The flagella or flagellum has a long, tail-like extension.

what are the parts of a cell and is the nucleus part of the cytoplasm?!​

Answers

Answer:

part of cell are cell membrane,mitochondria,vacoules,ribosomes and many more ,yes nucleus is the part of cytoplasm because cytoplasm is a jelly like substance where all organelle of a cell are present and nucleus is also present in cytoplasm.

Explanation:

This table shows how the levels of classification have changed with each major scientist.
Which number belongs in the space labeled X?

A. 5
B. 7
C. 8
D. 10

Answers

Answer:

Woese increased the number of levels of Hierarchy from 7 to 10, therefore the answer is D. 10

Explanation:

Carl Woese classified the three domains of life so 10 belongs in the space labelled X.

Who was Carl Woese?

Carl Richard Woese was a microbiologist and biophysicist from the United States.

Woese is best known for identifying the Archaea (a new category of life) in 1977 through the phylogenetic taxonomy of 16S ribosomal RNA, a technique he pioneered and which revolutionized microbiology.

In 1967, he also proposed the RNA world idea, though not under that name.

Woese was a professor of microbiology at the University of Illinois in Urbana–Champaign and held the Stanley O. Ikenberry Chair.

Woese classified the various living forms into three categories:

Eubacteria, Archaebacteria, and Eukaryotes.

The three-domain classification is also useful for determining the evolutionary relationships between organisms.

Hence, the correct answer is D i.e. 10

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What is a stomata?

A. the little mouths on the leaf of a plant where they take in CO2,and release 02

B. Where the plant takes in water ​

Answers

A. the little mouths on the leaf of a plant where they take in CO2,and release 02

stoma=mouth

Those structures are located on the backside of the leaf

1..Why do organisms need
perform respiration?

Answers

Answer:

All organisms respire in order to release energy to fuel their living processes.

Explanation:

The respiration can be aerobic, which uses glucose and oxygen, or anaerobic which uses only glucose. Because this process occurs in all life, we call it a universal chemical process.

2. ich part of the plant takes in carbon dioxide
form the air for Photosynthesis ?
a) root hair
b)stomato
c)Leaf veins
d)petals​

Answers

The correct answer would be “Stomata” which in your case is B! Hope it helps

NEED HELP ASAP!!!!!!
What would be the three amino acids that correspond to the mRNA sequence: GGACACCCG

Question 1 options:

arg, ser, pro


glu, pro, his


gly, his, pro *********


pro, his, pro

Answers

glycine, histidine, proline

how is the top layer of the ocean different from the deepest layer

Answers

Answer:

It gets colder and denser as you go deeper

Explanation:

Answer:

There is way less warmth, and sunlight, And way more pressure.

Explanation:

When a cold air mass replaces a warm air mass, it's called an)
front.
A. Stationary
B. Warm
C. Occluded
D. Cold

Answers

When a cold air mass replaces a warm air mass, it's called a Cold front (Option D).

What is a Cold front?

A cold front is a limit between two masses of air (one mass that is cool and the other that is warm).

This cold front may be very unstable and thus may be associated with the presence of storms.

In mid-higher latitudes, cold fronts generally advance the Equator by pushing the warm air up.

In conclusion, when a cold air mass replaces a warm air mass, it's called a Cold front (Option D).

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Which parts of the water cycle the water molecules to give away heat energy?

Answers

Answer:

evaporation i think but im not sure

Explanation:

Answer:

condensation

Explanation:

Precipitation, runoff, infiltration, and ground water. Is the source of energy that drives earths water cycle. The sun. As heat energy was added to the water, it changed states from. A liquid to a gas. This gas is called water vapor. As more energy is added to the water, the water molecules move.

21
Two brown eyed parents (Bb) have a baby.
What is the chance the baby is blue eyed?
Perform a Punnett square cross to find out. *
(2 Points)
0%
25%
50%
75%
100%

Answers

Answer:

25 percent

Explanation:

The reason why it is is because of how when  you draw the punnet square, you have to write B in the first top part, and b in the second top part. Then, you draw B in the top left corner side, and then b in the lower left corner. When you write the Bb's, BB, and bb, you get a 25% chance that the baby would have blue eyes.

Hope it makes sense!

1. How are the colors of the rainbow related to white light from the sun?
White light contains only the four secondary colors of the rainbow.
White light does not contain any of the colors of the rainbow.
White light contains only the three primary colors of the rainbow.
White light is made up of all the colors of the rainbow.

Answers

Answer:

And? What is the questIon??

Explanation:

When a phosphate group is removed from an ATP molecule a(n)........................... Molecule is formed.

Answers

Answer:

ADP(adenosine monophosphate)

Explanation:

The hydrolysis of ATP occurs with release of energy form breaking the macroergic bond between the 2nd and 3rd phosphate groups.

What may happen if tectonic plates stopped moving?

A) Ocean water will freeze.
B) There will be no new mountain formations.
C) Volcanic activity will increase.
D) Continents will move towards the poles.

Answers

Answer:

b

Explanation:

b

Answer:

c

Explanation:

According to the visual, which three continents, as of 2004, are the largest consumers or energy per capita?

Answers

Answer:

the first largest consumer is china,then next united state and the third is canada

What is photosystem 1 and photosystem 2 and what do they do? What are the steps ?

Answers

P I and PII are proteic compounds present in the thylakoid membrane that contain about 300 chlorophyll molecules each.

Step I

First of all light with a wavelength of 690nm is absorbed by P II. The light excites an  electron that leads to the photolysis of water(H2O--->2H+ +2e- + 1/2O2). The two electrons released go into the electron transport chain. The second compound in electron transport chain is plastoquinone that is reduced when it accepts electrons then oxidised when it loses them to P I. The next two compounds are cytocromes  that make  hydrogen protons  go inside the thylakoid when they recieve the electrons.(I will mention what happens to the  H+  in the second step). The next compound in the electron transport chain is a compound that contains Fe and S. The electrons finally reach the last step: Reduction of NADP+ to NADPH+H+.

Step II

In the second step is ATP synthesis. Hydrogen protons accumulate inside  the thylakoid membrane. An electrochemical gradient is formed. The protons can leave the thylakoid according to this gradient through an enzyme.

When the protons flow through , it turns ADP into ATP.

To sumarize: the role of P II is O2 production through photolysis and ATP synthesis(indirectly) The role of P I is NADPH+H+ synthesis.

need answer right now!

Answers

C.
asexual means only one parent while sexual reproduction needs sperm and eggs

Which of the following is NOT true of Chlorophyll?
A) It reflects all the colors of light but absorbs the green.
B) It reflects the green wavelengths of light and absorbs all the rest.
C) It is essential for photosynthesis?

Answers

Answer: A.It reflects all the colors of light but absorbs the green.

Explanation:

Photosynthesis, which gives plants their green hue, requires chlorophyll. Therefore, option (A) is not true.

What is chlorophyll?

Chlorophyll, the pigment that gives plants their distinctive green hue, is crucial to the process of photosynthesis, which provides energy for a plant's metabolism, growth, and reproduction. Because chlorophyll does not absorb the green wavelengths of white light, it is chlorophyll that gives plants their green hue. The plant appears green because it reflects that particular light wavelength. Autotrophs are plants that produce their own sustenance through photosynthesis.

The stroma, which is the area between the thylakoid and chloroplast membranes, is where the chlorophyll, the green pigment, is found.

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Explain how bacteria can be genetically engineered to produce a human protein.

Answers

Answer:

Recombinant DNA is a technology scientists developed that made it possible to insert a human gene into the genetic material of a common bacterium. This “recombinant” micro-organism could now produce the protein encoded by the human gene. ... There, the recombinant bacteria use the gene to begin producing human insulin.

Explanation:

Hopefully this helped!

Genetic engineering involves modifying the genetic material of an organism, such as bacteria, to introduce new characteristics or functions. One application of genetic engineering is to use bacteria to produce human proteins, which can be used for various medical purposes such as in vaccines or as therapeutic agents.

What is the first step for the process ?

Isolate the gene for the human protein: The first step in genetically engineering bacteria to produce a human protein is to identify and isolate the gene that codes for the protein. This can be done using various techniques, such as polymerase chain reaction (PCR) or DNA sequencing.

Insert the gene into a bacterial vector: Once the gene for the human protein has been isolated, it is inserted into a bacterial vector, which is a small circular piece of DNA that can replicate independently within the bacterium. The vector is usually a plasmid, which is a type of DNA that can be easily manipulated and introduced into bacterial cells.

Introduce the vector into bacteria: The next step is to introduce the vector carrying the human gene into the bacteria. This can be done using various techniques such as electroporation, heat shock, or transformation.

Allow the bacteria to produce the protein: Once the vector carrying the human gene is inside the bacterial cell, the cell can begin to produce the human protein. The bacterial machinery reads the genetic code in the gene and synthesizes the protein.

Extract and purify the protein: After the bacteria have produced the protein, it can be extracted and purified. This involves breaking open the bacterial cells to release the protein, and then using various purification techniques to isolate and purify the protein.

Test the protein for activity and safety: Finally, the purified protein is tested to ensure that it is active and safe for use in humans. This can involve various assays and tests to confirm the protein's function and purity.

In summary, genetic engineering can be used to introduce the gene for a human protein into bacteria, allowing the bacteria to produce the protein, which can then be extracted, purified, and tested for medical use. This process can be used to produce a wide variety of human proteins, including hormones, enzymes, and antibodies.

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Your labmate's ligation reaction didn't work. The regular ATP had run out, so he fueled the reaction with dATP from the PCR kit. What advice can you give him

Answers

Answer: adding heat to the ligation reaction to provide energy to the system, instead of ATP.

Explanation:

Ligation is referred to as an act of joining, and the term refers in biology to an enzymatic reaction that joins a covalent bond between two biomolecules. The application of DNA ligation in research in molecular biology is defined in this video.

ILL GIVE BRAINIEST!
Which of the following human actions could have a positive impact on local ecosystems?

Choose 1 answer:
A) Clearing forests to make way for new farms

B) Using renewable resources

C) Producing waste during technology development

D) Increasing the use of pesticides to protect crops

pls don’t answer if you don’t know, i need to pass this test.

Answers

Answer:using renewable sources

Explanation:

All the others are bad for the environment

In what city was Jesus born?

How many books are in the New Testament?

What type of insect did John the Baptist eat in the desert?

Who were the first apostles called to follow Jesus?

How many people did Jesus feed with five loaves of bread and two fish?

After Jesus was arrested, which apostle disowned him three times?

Answers

Answer:

1 Bethlem. 2 27. 3 locusts. 4Matthew. 5 5000 people 6 peter

Read Changes on Earth and Changes in Life. Explain how changes in Earth’s systems affect the growth of life on Earth. Use evidence from the text to support your answer.

Answers

Any Changes on earth has its effect on life in general. Like rock reformation, volcanoes eruption and global warming made its impact on our environment. As earthquake or volcanoes occur it changes the formation of our earth causing ocean water to reach high tides can even cause tsunami’s in rare cases due to the intensity of the movement. Another example would be australia wild fires, this phenomenon caused people to evacuate, animals losing their habitat and making our air quality worse. It affects a lot more aspects in life and people in so many ways.

Any changes on earth has a big effect on life in general like for instance rock reformation volcanoes eruption and global warming has made a huge impact on our environment as earthquake or volcanoes occur it has changes the formation of our earth causing ocean water to reach high tides that can even cause tsunami's that cause a lot of trouble in rare cases due to the intensity of the movement  A another example is Australia wild fires in this phenomenon caused a lot of people to evacuate their home and animals  losing their habitat and making our air quality worse and it affects a lot more people aspects in life and people in so many  ways  like now there home where burned  down they might be homeless  and that is my explaining on how earth systems affects the growth in our life, earth.

Which crop is preferably harvested by hand?

A. Wheat
B. Rice
C. Potato
D. Grapes

Answers

I believe grapes is the answer

Hope this helps you

Cells used a molecule called what to store and release energy

Answers

Answer:

ATP

Explanation:

big brain pls give brainliest

ATP

Adenosine Triphosphate (ATP) is an energy-carrying molecule found in the cells of all living things. ATP captures chemical energy that is obtain from the breakdown or food molecules, it then releases it to fuel other cellular processes.

ATP is the main energy currency of the cell.

How can ATP be produced:
Fermentation
Cellular respiration
Photo phosphorylation

Where is atp made in the cell: the mitochondria

Which happens during crossing over?
A. Two sex cells join together and combine DNA.

B. Genes are exchanged between two alleles.

C. Genes are exchanged between two egg cells.

D. Chromosomes line up randomly during metaphase I.

Answers

I think the answer is A hope this helps

The Gulf of Mexico dead zone that forms each summer at the mouth of the Mississippi River is caused largely by the input of agricultural fertilizers that stimulate phytoplankton blooms, which die, and are subsequently consumed through bacterial decomposition. Decomposition consumes oxygen, leading to very low dissolved oxygen levels and subsequent death or emigration (i.e. leaving the area) of fish and other marine life. Many scientists advocate creating wetlands (as well as restoring them) as a strategy to reduce the severity and extent of the dead zone. The idea is that the plants in the wetlands will remove these nutrients from the water (during growth) and prevent their washing into the river and the Gulf of Mexico. Would the use of created wetlands be considered biotechnology

Answers

Answer:

Yes; the use of created wetlands would be considered biotechnology.

Explanation:

The created wetlands will employ the use of scientific tools and techniques, which will largely modify the plants, animals, and microorganisms in the Gulf of Mexico's dead zone.  Generally, it has been established that biotechnology allows farmers to grow more food with environmentally sustainable farming techniques, which also improve soil conservation.

Answer:

Yes, the use of created wetlands would be considered biotechnology.

Explanation:

Biotechnology uses biological systems and living organisms to develop and create different products. The new wetland that they create will be made with the usage of scientific tools and techniques in order to replicate an already existing biological system. It will have very modified plants, animals and other organisms in the Gulf of Mexico's dead zone.

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