What is the microscopic nature of a cell ?

Why nucleus is said to be the controller of cellular activities ?

How is a cell adapted to its small size?​

Answers

Answer 1

Answer:

No 1 answer They require sophiscated tools. The microscopes help in the study of cells. The molecular study of the cells are performed by the help of electron microscope. So, we can say that cells are microscopic in nature.

Explanation:

No 2 answer The nucleus is the largest and most prominent of a cell's organelles (Figure 3.7). The nucleus is generally considered the control center of the cell because it stores all of the genetic instructions for manufacturing proteins.

No 3 answer Smaller single-celled organisms have a high surface area to volume ratio, which allows them to rely on oxygen and material diffusing into the cell (and wastes diffusing out) in order to survive. The higher the surface area to volume ratio they have, the more effective this process can be.


Related Questions

According to the graph, which region's population is expected to get smaller
between 2010 and 2050?

Answers

Answer:

Europe

Explanation:

it's the only line that slopes downward between 2010 and 2050

Question 2 of 10
How is a scientific theory developed?
A. One scientist proves his hypothesis with an experiment.
B. A single experiment is performed once.
C. An experiment is repeated several times.
D. Many different experiments are performed and repeated.
SIE

Answers

D). Many different experiments are performed and repeated.

Francis was recording plant heights for an experiment. Each time that she took a measurement, she wrote it down. Then, she measured the plant again and compared the new measurement to the one that she had recorded in her notebook. What was she most likely trying to do
revise her hypothesis
check her memory
make the data more valid
form a conclusion

Answers

revise her hypothesis I guess because

she recorded the experiment again and again and then wrote it so she could get more knowledge about the experiment

Answer:

A

Explanation:

edge 202

El vapor se puede transportar a través de la atmosfera. A medida que el vapor se enfría , el agua se condensa en gotitas y forman y forman nubes y da como resultado

Answers

Answer:

Precipitación.

Explicación:

El agua se mueve del cuerpo de agua a la atmósfera debido al proceso de evaporación en forma de vapor. A medida que los vapores de agua se enfrían, el agua se condensa en gotitas y forma nubes que resultan en precipitaciones en forma de lluvia y nevadas. Los vapores de agua se vuelven más pesados cuando se condensan y debido a su cuerpo pesado no pueden permanecer en la atmósfera por lo que caen a la tierra en forma de lluvia y nevadas.

Can someone help with this?

Answers

Answer:

a primary oocyte contains 46 chromosomes, while a secundary oocyte contains 23 chromosomes

Which best describes why gel electrophoresis works

Answers

Answer:

Scientists can determine the size of DNA fragments through a process known as gel electrophoresis. ... Large DNA molecules move slower and can be observed at the top of the gel, whereas smaller DNA fragments move faster and are seen at the bottom of the gel.

It is projected that an increase in carbon dioxide levels in the atmosphere will MOST LIKELY lead to _____.
Select one:
a. lower-than-average hurricane rates
b. higher-than-average ice levels in arctic
c. higher-than-average sea levels
d. lower-than-average ocean temperatures

Answers

I think is answer A, not to sure

Changes in global temperature and other Choose... conditions have effects on organisms and on the clades to which they belong. The emergence, growth, and extinction of a large clade, such as the dinosaurs, is an example of a Choose... pattern. This pattern includes Choose... extinction, which tends not to disturb ecosystems, as well as Choose... extinction, in which ecosystems change drastically.

Answers

Answer:

larger macroevolutionary patterns.

extinction, in which ecosystems change drastically

Explanation:

The emergence, growth, and extinction of a large clade, such as the dinosaurs, is an example of larger macroevolutionary patterns. This larger macroevolutionary patterns occur due to climate change. Extinction of organisms in which ecosystems change drastically that leads to unfavourable environmental conditions which decreases the population to the extinction of organisms.

Refer to the diagram below to answer the question. Which position of the Moon would cause a solar eclipse over a portion of Earth?

Answers

Answer:

Explanation:

The diagram below represents a total solar eclipse as seen from Earth. ... Base your answers to questions 2 through 5 on the diagram below, which shows the. Moon at ... the Sun cause Earth to experience the highest high tides. 3 the diagram below, which shows the positions of the Moon in its orbit and phases of the.

¿POR QUÉ ES TAN IMPORTANTE PARA LAS ESPECIES EL OLFATO?

Answers

El olfato es vital para la supervivencia de la mayoría de humanos y animales, ya que les permite rastrear alimentos y agua, encontrar pareja e incluso comunicarse.

Explanation:

una pregunta porque puedes hablar español si esto es de ingles este Braylin

Explain what happens to an animal cell when it removed from an organism and placed into distilled water

Answers

Answer:

I think it has to do with osmosis

Explanation:

Osmosis is the process of having water pass from a low concentration medium to a high concentration one, given that the barrier (membrane) is semi-permeable.

When a cell is placed into distilled water, hypertonic solution takes place.

A cell may contain many solutes so it is considered hypertonic when compared to distilled water which is hypotonic So in this case, when a cell is placed in distilled water, water moves from outside of the cell to the inside leading to swelling of the cell.

___ has a definite shape and do not easily take shape of their container

Answers

Answer:

solid has a definite shape and do not easily take shape of their container

the answer is solids

in which country green rain fell upon?​

Answers

Answer:

In India ,Kolkata green rain fell.

I hope it helps

have a great day

[tex]#Liliflim[/tex]

Answer:

The country in which green rain fell upon is

India.(kolkatta)

Find out what the contractile vacuole in a Paramecium does and why
can someone help me please?

Answers

acts as a part of a protective mechanism that prevents the cell from absorbing too much water.

lmk if this helped :)

El pelaje negro de los borregos se debe a un alelo recesivo n frente a su alelo N que determina el pelaje blanco. Si cruzamos un individuo homocigótico blanco con un homocigótico negro, ¿de qué color serán los descendientes de la primera generación filial? GENOTIPO-FENOTIPO

Answers

Answer: Los descendientes de la primera generación filial tendrán un genotipo Aa y un fenotipo color blanco.

Explanation:

Un gen es un segmento de ADN que codifica para una proteína. Para cada gen, hay distintas versiones, conocidos como alelos. Por ejemplo, el gen que codifica para el pelaje tiene los alelos para el color blanco y para el color negro. Considerando que los organismos diploides tienen dos copias de cada gen (dos alelos), un alelo dominante solo necesita una copia para expresarse. Mientras que un alelo recesivo, necesita dos copias.

En este ejemplo, el borrego homocigota blanco tiene un genotipo (conjunto de genes) de AA ya que el color blanco es dominante y al ser homocigota indica que ambos alelos son iguales. El borrego homocigota negro tiene un genotipo de aa ya que se necesitan dos alelos recesivos para mostrar ese fenotipo (características visibles).

Los borregos producen gametos, los cuales son células sexuales (espermatozoide u óvulo) haploides, es decir que solo poseen un alelo de cada gen. Entonces el borrego AA solo produce gametos con genotipo A, mientras que el borrego aa solo produce gametos con genotipo a. Estos gametos son los que se cruzan, es decir que la descendencia solo puede tener un genotipo Aa (con un alelo de cada padre)

El genotipo Aa posee un alelo dominante A (que codifica para el color blanco) que enmascara los efectos de el alelo recesivo a (que codificaría para el color negro) Entonces, los descendientes de la primera generación filial tendrán un genotipo Aa y un fenotipo color blanco.

Explain how the formation of a submergent coastline differs from the formation of an emergent
coastline.

Answers

Answer:

One occurs when sea level rises whereas the other happens when the sea level drops.

Explanation:

The main difference between Submergent coastlines and emergent coastlines because Submergent coastlines formed when sea level rises or in other words, the land sinks down. Examples of submergent coastlines are estuaries, barrier bars, and barrier island systems while on the other hand, emergent coastlines occurs when sea level drops or the land rises. Hudson Bay and Eastern Coastal Plains are the examples of emergent coastlines.

qué ventajas le trajo al ser humano el poder andar en 2 patas.

Answers

Answer:

The advantage that hominids had when they developed bipedalism is truly great. Walking on two legs instead of four allowed hominids to free up their arms. Using their arms they could now make tools, stretch trees, and use their hands for social communication. The development of bipedalism also allowed for long-distance walking and eventually endurance running. Bipedalism, basically, was a key step for hominids' "brains to grow".

[tex]{\sf{\boxed{\boxed{\tt\green{Las \: ventajas}}}}}[/tex]

La gran cantidad de ventajas que trajo el bipedalismo significó que todas las futuras especies de homínidos llevarían este rasgo. El bipedalismo permitió a los homínidos liberar completamente sus brazos, lo que les permitió hacer

English:

The advantages

The host of advantages bipedalism brought meant that all future hominid species would carry this trait. Bipedalism allowed hominids to free their arms completely, enabling them to make and use tools efficiently, stretch for fruit in trees and use their hands for social display and communication.

#CarryOnLearning

this part too #stresscrying

Answers

Explanation:

It could be that both the parents were heterozygous, meaning having a dominant and recessive allele for example Aa..after these are paired you would see that they will form a white fur offspring.

How can a mutation get into a population?

Answers

Answer:

Some mutations do not result in changes in the amino acid sequence of the encoded protein and can be described as silent mutations. Other mutations result in abnormal protein products. Mutations can introduce new alleles into a population of organisms and increase the population's genetic variation.

Explanation:

Answer:

Some mutations do not result in changes in the amino acid sequence of the encoded protein and can be described as silent mutations. Other mutations result in abnormal protein products. Mutations can introduce new alleles into a population of organisms and increase the population's genetic variation.

Explanation:

Which cells are not locked into becoming one particular kind of cell and are capable of developing into specialized tissues (example; nerve cells, muscle cells and skin cells) ?

Answers

Explanation:

hshhdhejjwjdjjeksjhdhisjhshhehsjjshhrjsjwklslskidhfhhfhudjrhhdjskksuejchejejhsjsjhdueje

Which of the following pairs of animal and plant cells carry out similar functions

A Guards cells and nerve cells

B Guard cells and white blood cells

C Palisade cells and white blood cells

D Root hair cells and red blood cells

Answers

Is d for sure that’s the answer

Answer:

I guess guard cells and white blood cells

Explanation:

Because White blood cells also guards our body from different external agents and guard cells also guard plants.

Hope it helps you:)

58. Which of the following Kingdoms contain multicellular organisms? *

Answers

Answer:

The answer is fungi.

two examples of heat energy​

Answers

Answer:

sun and electric heater

Explanation:

sun is the biggest source of heat energy

electric heater is also an example of heat energy as it warms us

1. A cup of fresh coffee is very hot because the water particles are vibrating very rapidly giving the coffee heat energy.

2. A fire is a chemical reaction that is releasing energy as bonds are being broken, this energy is felt as warm or hot and is a release of heat energy.

The outcome of protein synthesis is ______.
A. A glucose molecule

B. An mRNA molecule

C. A protein

Answers

Answer:

C. A protein

Explanation:

The outcome of protein synthesis is a protein.

The process of protein synthesis is crucial to cellular function. Protein synthesis is the procedure used by cells to generate proteins. Thus, option C is correct.

What is the role of protein synthesis in the cell?

Protein synthesis, sometimes referred to as protein biosynthesis, is an essential biological process that occurs inside of cells to replace lost proteins (due to export or degradation) with new proteins.

Proteins have a wide range of vital biological functions, including those as enzymes, hormones, and structural proteins.

Cells are made of proteins, and the word “synthesis” simply means “to make.” Thus, the process of producing proteins is known as protein synthesis.

Creating a polypeptide, or protein consisting of a chain of amino acids, is the sole goal of protein synthesis. Keratin, a protein, is produced in the cells of the hair follicle.

Therefore, The outcome of protein synthesis is a protein.

Learn more about protein here:

https://brainly.com/question/18800216

#SPJ6

PLS ANSWER NOWWWWWWWWWWWWWWWWW

Answers

Sunlight - 9th down > Needed to chemically change water...

Population - 10th down > More than one organism of the same species...

Community - 3rd down > Different populations in a specific area...

Trophic Pyramid - 4th down > Shows the energy transfers of populations...

Food Web - 6th down > Shows the feeding relationships of the food chains...

Decomposer - 8th down > Helps dead things to chemically change...

Explain one environmental condition that drove organism evolution

Answers

Answer:

Weather is one, but there are thousands of factors that contributed to it.

Explanation:

. Which of these is a response of cats to external stimuli?
A hairs on the back stand up when scared
B decreased heart rate when sleeping
C movement of waste into the bladder
D temperature increases during an infection

Answers

Answer:

A. hairs on the back stand up when scared

Explanation:

B and C are not responses to stimuli, and D is a response to internal stimuli

Answer:A (don’t mind me just trying to get my points up)

Which structure does a virus have in common with a prokaryotic cell?
cell wall
O nucleic acid
ribosome
capsid

Answers

Answer:

Explanation:

cell-wall

the answer is capsid

Two nucleotide sequences found in two different species are almost exactly the same. What does this suggest about these two species?

A.They contain exactly identical DNA
B.They may have common ancestor
C.They are evolving into same species
D.They have the same number of mutations

Answers

Answer:

B.They may have common ancestor

B! Hope this helps you!

Amoebas make exact copies of themselves. Therefore, they reproduce
A. asexually buy the process of MEIOSIS

B. sexually by the process of MITOSIS

C. sexually by the process of MEIOSIS

D. asexually by the process of MITOSIS

Answers

Answer:

D.

Explanation:

You can rule out B and C because offspring produced sexually are not identical to their parents. The amoebas reproduce by binary fission, which is a form of asexual mitosis.

Answer:

D. asexually by the process of MITOSIS

Explanation:

Mitosis is a form of asexual reproduction in simple living organisms. The outcome of each cell cycle is two identical cells. Mitotic checkpoints happen at certain stages of mitosis to ensure that each cell receives the same amount of DNA.

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How do you do this ? Which of the following statements must be true What are 3 good things about sparta education estimate the measure of The following discussion focuses on the change in production and selling strategies of Timken Co., the Canton, Ohio, firm that is a major producer of bearings:To counter the low prices of imports, Timken Co. in 2003 began bundling its bearings with other parts to provide industrial business customers with products specifically designed for their needs. Timken had begun bundling prelubricated, preassembled bearing packages for automobile manufacturers in the early 1990s. Evidence indicated that companies that sold integrated systems rather than discrete parts to the automobile manufacturers increased their sales. Other industrial customers put the same pressure on Timken in the late 1990s to lower prices, customize, or lose their business to lower-priced foreign suppliers. Manufacturers are increasingly combining a standard part with casings, pins, lubrication, and electronic sensors. Installation, maintenance, and engineering services may also be included. Suppliers, such as Timken, saw this as a means of increasing profits and making themselves more indispensable to the manufacturers. The strategy also required suppliers to remain in proximity with their customers, another advantage over foreign imports. This type of bundling does require significant research and development and flexible factories to devise new methods of transforming core parts into smart assemblies. The repackaging is more difficult for industrial than automobile customers because the volumes of production are smaller for the former. Timken also had to educate its customers on the variety of new products available.Timken has an 11 percent share of the world market for bearings. 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I don't want you spreading rumors about me. if you have any problems please see me about it.Version 3: George yells at Elaine to sh*t up and then confronts his boss demanding to know why he is going to be fired.Version 4: George demands that Elaine tell him where she heard that. Elaine tells him not to worry about it and tries to crack a joke about how much the boss is late.Choose the answer that correctly identifies the conflict management style represented by each version.A. 1-non confrontational 2-cooperative 3-confrontational 4confrontational and non confrontational.B. 1-confrontaional 2-cooperative 3-confrontaional 4-cooperative and confrontaional C.-1- cooperative 2-confrontational 3-non confrontational 4-both are confrontational D.all of the above.I WILL MARK BRAINLIEST The Bonus Army was made up of people from what group?