Con ayuda de un microscopio se observa una bacteria en el agua transcurridas (2) se miran muchas bacterias . Que ocurrio alli ,que tpo de reproducccion sucedio meiosis o mitosis

Answers

Answer 1

Answer:

Ninguna de las dos. No ocurre ni mitosis ni meiosis.

Probablemente haya ocurrido fisión binaria/bipartición.

Explanation:

En este caso estamos hablando de bacterias, organismos unicelulares procariotas. Estos tienen una forma de reproducción asexual denominado fisión binaria. Los eucariotas por su parte pasan por periodos de división celular implicada en el crecimiento denominado mitosis, y división celular implicada en reproducción sexual, denominada meiosis.

La fisión binaria, también conocida como bipartición, si bien muy parecida a la mitosis en algunos aspectos, es la forma de reproducción de las bacterias.

Ambas, mitosis y fisión binaria, implican un duplicado de material genético. El ADN se duplica y una copia va a cada célula hija. Lo mismo sucede con el resto del contenido celular. Finalmente ocurre citocinesis. Sin embargo, a diferencia de la bipartición, la mitosis requiere de mecanismos mucho mas complejos de duplicación celular e involucra también a la cariocinesis, ausente en bacterias.

La fisión binaria ocurre muy rápidamente, en un breve período de tiempo puede hallarse una diferencia considerable en la cantidad de células presentes en un sustrato, producto de esta división. Es por esto que el crecimiento que exhiben las bacterias como población, sigue un modelo exponencial.


Related Questions

Is chloroplast eukaryotic or prokaryotic?

Answers

Answer:

Chloroplasts are eukaryotic, as they are present in all eukaryotic cells and all prokaryotic cells lack chloroplasts

Explanation:

Why is lighter skin an
advantage in places
with less sunlight

Answers

Answer: Yet when a certain amount of UV rays penetrates the skin, it helps the human body use vitamin D to absorb the calcium necessary for strong bones. This delicate balancing act explains why the peoples that migrated to colder geographic zones with less sunlight developed lighter skin color.

Answer:

When a certain Strongbow amount of UV rays penetrate the skin, it helps the human body use vitamin D to absorb the calcium is necessary for strong bones. This Balancing Act explains why the people that migrated to colder Geographic zones with less sunlight develop lighter skin color.

Hope this helped!

Microorganisms that can produce ammonia from nitrogen gas

Answers

Answer:

Nitrogen-fixing bacteria

Explanation:

What causes variations to arise in a population? *
O Change in the environment
O Random mutation in genes
O Rapid population increases
O Competition for limited resources

Answers

Mutation in the genes is the reason why not everyone looks the same. My best bet is the answer is “Random mutations in genes”

The following diagram shows a stage of a cell during mitosis. An oval has sister chromatids lined up at the upper and lower portions of the cell. Which of the following happens to the cell during the stage shown in the diagram? The chromosomes are replicated. The chromosomes start to condense. The centromere of each chromosome splits. The centrosomes line up in the middle of the cell.

Answers

this is most probably showing anaphase, when the centromeres divide, seperated the chromatids to form daughter chromosomes.

the answer should be that the centromere of each chromosome splits.

Answer:

Anaphase

Explanation:

Would you want to have your DNA analyzed for medical purposes? Briefly explain why you feel this way.

Answers

Depends, It could be good or not you never know

PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!! Will mark brainliest!!!!!!!!!!!!!! HELP ASAP!!!!!!!

According to the cladogram which of the following is the derived characteristic shared by amphibians and reptiles

1) bony skeleton
2) lungs

Answers

Answer:  2) lungs

Explanation:

Describe a situation where your immune, lymphatic and circulatory systems would all be involved.

Answers

Answer

Lupus is a disease that occurs when your body's immune system attacks your own tissues and organs (autoimmune disease). Inflammation caused by lupus can affect many different body systems — including your joints, skin, kidneys, blood cells, brain, heart and lungs.

Explanation:

Which type of force occurs between two objects at a distance? Applied force Contact force Non-contact force Normal force

Answers

I think the ans is contact force

Answer:

Non contact force

Explanation:

I took test :)

Plss help!! ASAP I will give u brainlist

Answers

Answer:

Sedimentary

Explanation:

Question 9
After 60 days, 100g of a certain element has decayed to only 12.5g.
What is the half-life of this element?
A.) 20 days
B.) 30 days
с.) 8 days
D.)5 days

Answers

30 days I think because I am not so sure

Can anyone please help me on this please I beg you

Answers

i think it is a not sure tho

Answer;

option c is right answer

A plant's response to an environmental stimulus that indicates growth or movement is called?

Answers

Answer:

Tropism

Explanation:

Question is in picture

Answers

Answer:

Your excretory system attempts to cool your skin through evaporation

Explanation:

Sweat is produced from sweat glands which is part of the excretory system. It secretes through the skin in order to decrease temperarure

Which molecule regulates how the organism looks and acts?

Answers

Answer:

In a cell, proteins can act as enzymes, structural features, pigments, and a host of other functions, including regulating the expression of other genes. This expression of genes leads to how an organism looks – its phenotype.

Explanation:

Gene regulation creates different types of proteins which make the structure of cell and organism looks, so the gene is responsible for looks and acts.

What is gene regulation?

Gene regulation is a critical component of proper development. During development, genes are switched on and off in diverse patterns to make a brain cell appear and perform differently from a liver cell or a muscle cell, for example.

Gene control also enables cells to respond swiftly to environmental changes. Genetic differences can result from gene variants (also known as mutations) or through a natural process.

Genetic information is reorganized when a cell prepares to divide (known as genetic recombination). Different features in an organism can be introduced via genetic differences that modify gene activity or protein function.

Therefore gene is responsible for how an organism looks and act, it creates different proteins to make a cell.

Learn more about gene, here:

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Can someone help me with this. If you do nabot know then skip this. NO LINKS

Answers

Answer:

for part a it would be mechanical

for part b it would be warm

Explanation:

when you rub your hands together, it is mechanical energy and your hands become warm

hope this helps

What is cell?? Help plss:(

Answers

Answer:

Cell is the basic unit of life

Answer:

Hey mate.....

Explanation:

This is ur answer.....

Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells have many parts, each with a different function.

A photo is attached for ur reference!

Hope it helps!

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How do electric charges behave?

Answers

The protons are positively charged, the electrons are negatively charged, and the neutrons are neutral.Opposite charges attract each other (negative to positive). Like charges repel each other (positive to positive or negative to negative).

Select the correct answer. Which of the following is true for balancing equations? A. The number of products should be equal to the number of reactants. B. The properties of products should be the same as the properties of reactants. C. There must be as equal number of compounds on both sides of the equation. D. There must be as equal number of atoms of each element on both sides of the equation.

Answers

D is the correct answer to your question

Answer:

d

Explanation:

PLZ ASAP Coniferous trees flourish because they take the opposite approach of deciduous
trees, they grow (slow/ast) and die (young/old),
slow, old
fast, old
Slow young
Fast young

Answers

Answer: They grow slow and die old

Explanation: I just took a  test with the same question and it said I was correct plus it is on this website https://untamedscience.com/biology/biomes/coniferous-forest-biome/

Coniferous trees flourish because they take the opposite approach to deciduous trees, they grow slowly and die old. Thus, the correct option for this question is A.

What are the characteristics of Coniferous trees?

The characteristics of Coniferous trees are as follows:

They have leaves that are very thin in the shape of needles. These trees don't have flowers but produce cones. Due to this, they are called coniferous trees.These trees grow in areas that have snowfall. Hence these trees have needle-like leaves that do not allow the snow to rest on them.

The approach and properties of coniferous trees are absolutely opposite to those of deciduous trees. This is because the environment of both conditions differs greatly.

When there are not enough nutrients present in the soil, coniferous trees generally flourish because they take the opposite approach with respect to deciduous trees. Due to this, they grow slowly and die old.

Therefore, coniferous trees flourish because they take the opposite approach to deciduous trees, they grow slowly and die old. Thus, the correct option for this question is A.

To learn more about Coniferous and deciduous trees, refer to the link:

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Why do you think there are so many bones in the cranium? Why do you think we are born with separate cranial bones that later fuse together as we grow and develop?

Answers

Hi, rachellelunaa!!

I think the reason we have so many bones is because, firstly, the cranium is such a unique shape that we need multiple bones to form it. Also, another reason we are born with separate cranial bones is that when a baby is born, there is an incredible amount of pressure being administered to the baby during the process. The many unfused bones allow the child's head to be malleable, and therefore preventing damage to the skull and brain. As we grow, we no longer need these bones to be malleable and they fuse together.

I really hope this answers your question!!

The sutures are flexible, the bones can overlap during birthing, preventing the baby's head from pressing against the baby's brain and causing damage.

What are the cranial bones?

Skeletal structure of the head. The cranium, which surrounds and protects the brain, is made up of cranial bones and facial bones (bones that form the eye sockets, nose, cheeks, jaw, and other parts of the face).

The two remaining cranial bones are covered by the frontal bone. The sphenoid bone and ethmoid bone are these.

Behind your eye sockets, the sphenoid bone supports the muscles of your face. At the peak of your nose, between your eye sockets, is the ethmoid bone.

Therefore, preventing damage to skull and brain, we are born with separate cranial bones.

Learn more about cranial bones here:

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Describe why the discovery of deep sea thermal vents helps support the abiogenesis theory.

Answers

The discovery of hydrothermal vents changed all that. Vast communities of animals grew big and fast in the depths! Instead of using light to create organic material to live and grow (photosynthesis), microorganisms at the bottom of the food chain at vents used chemicals such as hydrogen sulfide (chemosynthesis).

Diffusion/Passive Transport is molecules moving from more to less until equilibrium.
A. TRUE
B. FALSE

Answers

In diffusion particles travel from a more concentrated area to less concentrated

Victor put a match on a balance and found that its mass was 6.0 grams. Then he lit the match and put it out after a few seconds.



He put the partially burned match on the balance again. This time, its mass was 4.5 grams.

Which of the following best explains what happened as the match burned?
A.
Some of the mass was destroyed by the fire.
B.
The mass of the match combined with the mass of the fire.
C.
The matter moved to a different part of the match.
D.
Some of the matter changed from solid to gas and went into the air.

Answers

Answer: It releases oxygen and heat. The answer is C

Stored inside the match head is another chemical called “potassium chlorate”. When it gets hot, it releases a lot of extra oxygen and heat. This makes the match head burn quickly and strongly. When you put it all together the heat, the fuel, and the oxygen  you get a flame. Matter does not go when something is set on fire. Matter is always the same.  Burning is a chemical process. The flames are caused as a result of a fuel undergoing combustion (burning). (CC BY-SA 2.5; Einar Helland Berger for fire and Walter Siegmund for ash).  

Answer:

Explanation:

heyyyyyyyyyyyyyyyyyyyyyyyyyyyy

how it going long time no talk

why is there only one winter and summer a year​

Answers

The earth got hit by a meteor billions of years ago and now it sits on an axis

Healthy rain forest ecosystems provide ecosystem services, such as clean air, shade, food, and water. How might an increase in palm oil plantations affect humans who live nearby?

Answers

Answer:

Negatively affected.

Explanation:

Increase in palm oil plantations negatively affected humans who live in nearby area because this palm oil plantations is the cause of deforestation. Due to this palm oil plantations, deforestation occurs that leads to loss of habitat of many species as well as decrease in the area of forest which provides us clean air, shade, food, and water. The decrease in forest area also causes natural disaster such as floods in the region. Forests play a significant role in the prevention of floods in the region.

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If a one strand of a DNA molecule reads ATCCGACCAGCTA, what will its complementary DNA strand look like?

A. TAGGCTGGTCGAT
B. UAGGCUGGUCGAU
C. ATCCGACCAGCTA
D. GCTTAATTGGCTG

Answers

Answer: A

Explanation:

A goes with T and G goes with C

Remember with this song:

Apples go in trees, Cars in the garage

which 3 beak types will most likely be present in surviving species

Answers

Don’t click that link trust me

Do you think we should use technology to alter/manipulate our genetic code?

no files no files no files no files no files no files no files no files no files no files no files no files no files no files no files no files

Answers

i’m pretty sure the answer is no

Non-potable water may contain __________.

A)

disease vectors

B)

pathogens

C)

high levels of chemicals

D)

high levels of suspended solids

E)

all of the above

Answers

Answer:

E all of the above.

Explanation:

All of these things are true of non-potable water.

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