Sarah is finishing a model drawing of a cell. She adds a membrane to the nucleus on her model. The nucleus of a cell has a membrane that isolates
material inside of it from the rest of the cell. Why does the nucleus need a membrane?
A.
The membrane helps the nucleus to create energy for the cell.
B.
The membrane helps the nucleus to create proteins for the cell.
C.
The membranes helps the nucleus to remove waste from the cell.
D.
The membrane helps the nucleus protect genetic material for the cell.

Answers

Answer 1

Answer:

C

Explanation:

a nuclear membrane is a double membrane that encloses the cell nucleus. It serves to separate the chromosomes from the rest of the cell. The nuclear membrane includes an array of small holes or pores that permit the passage of certain materials such as nucleic acids and proteins, between the nucleus and the cytoplasm .


Related Questions

Which of the following statements are true regarding cellular reproduction? Select all that apply.
When an organism grows, cellular reproduction creates new cells.
Organisms reproduce, so new cells are needed.
If cells become damaged, cellular reproduction can repair damaged cells.
Cellular reproduction helps organisms acquire water better, as there are more cells present.
Cellular reproduction is the exchange of homologous chromosome segments.

Answers

Replacing dead cells

Answer: Replacing dead cells

How is antibiotic resistance related to natural selection?

Answers

Answer:

Antibiotic resistance is a consequence of evolution via natural selection. The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce. They will then pass this trait to their offspring, which will be a fully resistant generation.

Hope this helps out.

Explanation:

Please tell me what goes in the top blank, and if you could, tell me if I put the other stuff in the right blank!

Answers

Explanation:

I could but I would need to know the question is that you need to solves put the answer in the blanl

How does glucose enter a cell? a. Through peripheral proteins b. Through integral proteins c. Through cholesterol d. Between the phospholipids

Answers

the answer is B
because glucose enters a cell through the integral proteins !!

please help me!!!!?????? 15 points??

Answers

i think it is erosion (2) because erosion removes soil, rock, and dissolved material.

Answer:

(2) erosion

Explanation:

Water wears away at, or erodes, stuff.

Have a great day!

Riddle Time! What do you call a cow with no legs? This question is solely for the purpose of getting points. Incorrect answers don't even matter.​

Answers

Answer:

lol

Explanation:

thx for the points!

Answer:

Ground beef.

Explanation:

You can blame Teen Titans Go! for me knowing that. I didn't even like the show and I remember that smh

In many parts of the United States, homeowners use a significant portion of their energy budget to heat their home in the winter. It has been determined that lowering a thermostat by 3°F in the winter can reduce the energy costs by about 10 percent in many homes. An individual homeowner lowers their thermostat by 3 degrees exactly halfway through the billing period. For the month that the thermostat was lowered, the heating bill was $95. How much money did the family save in the month in which they lowered the thermostat setting halfway through the billing period?

Answers

Answer:

B. $5

Explanation:

$95/10 percent = 9.5

9.5/2 (because it is halfway through the billing period) = 4.75

4.75 rounded up to the nearest tenths place is 5.

A billing period is a duration of time that starts from the last closing date of the statement of the specific invoice. The billing amount fluctuates according to the usage of the services taken or used.

$5 will be saved by the family in a month when they lower the thermostat setting halfway through the billing period.

The amount can be estimated by:

Given,

The heating bill when the thermostat was lowered = $95Reducing thermostats can reduce energy costs by = 10%

10% of the total bill will be:

[tex]\dfrac {\$95}{10\%} = 9.5[/tex]

Divide the value by 2 because the thermostat was lowered in the middle of billing time.

[tex]\begin{aligned} \dfrac{9.5}{2} & = 4.5\\ &= \$ 5\end{aligned}[/tex]

Therefore, 5$ was saved by the family.

Learn more about the billing period here:

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A population of crabs live on a light-colored sandy beach. In this environment there is a population of birds that eat the crabs. One year, there is a volcanic eruption near the beach and dark volcanic ash covers the beach. The sand is now much darker than it used to be. Scientists studying the area are most likely to predict which outcome?

A.
Some of the light-colored crabs will try to change their body color to be darker and pass on those traits to their offspring.

B.
Some of the light-colored crabs will try to change their body color to be lighter and pass on those traits to their offspring.

C.
Some of the crabs born with the body color traits that do not allow them to escape the birds will likely survive and pass on those traits.

D.
Some of the crabs born with the body color traits that allow them to escape the birds will likely survive and pass on those traits.

Answers

Answer:

Your answer is D).

Explanation:

If the crabs are able to avoid being eaten by the birds, then they are most likely darkly colored to blend in with the dark ashen sand, and as Charles Darwin theorized: survival of the fittest.

P.S.- After the birds leave for the day, the crabs can finally get back to vibin' on the beach

If DNA → RNA protein → trait, what would happen if a mutation were to occur in the
DNA?

Answers

an unpredicted change in the structure and amount of DNA would occur

hope this helps !

What changes an ecosystems structure and composition

Answers

Answer:

Climate‐change‐induced shifts in plant species distributions are changing the characteristics of biomes (ecosystems with the same dominant plant life‐forms), altering structure and ecosystem functioning.

Which of these things travel using waves

1. Light
2. Soumd
3. Earthquakes
4. All of these ​

Answers

4.All of these
(This is the right answer)

Deoxyribonuncleicacid is the name for DNA? True or false?

Answers

This is true. The word is usually shortened though.

I hope this helps .

Which best describes the relationship between population size carrying capacity and limiting factors

Answers

The size of a population usually stays near its limiting factors to carrying capacity. ... The size of a population usually stays near its carrying capacity due to limiting factors.

PLEASE HELP!! WILL BE MARKED BRAILIEST

6. phylum (or division) of fungi commonly known as "sac fungi" which includes
morels and yeasts*
Ascomycota
ascus
Basidiomycota
budding

Answers

Answer:

Answer is Ascomycota.

Explanation:

I hope it's helpful!

What's the independent , dependent and control variable of the is experiment (bromothymol blue experiment)

Answers

Answer:

we can't tell you if you don't tell us what the experiment is regarding bromothymol blue

If you are provided with some vegetables to cook. You generally add salt
into the vegetables during cooking process. After adding salt, vegetables
release water. What mechanism is responsible for this?​

Answers

Osmosis. Water flows towards the high concentration of salt.

What alternate form of genes do nucleic acids have that allows them to offer variability?
allele
codon
nucleotide
chromosome

Answers

Answer:

(D): Codon

Explanation:

Got it right on edge! Have a good day <3

Which stage of mitosis occurs the most often and why?

Answers

Answer:

prophase

Explanation:

...................

The answer is prophase because of how long it takes to separate the chromatin, connect spindles, and gathering resources to prepare for the rest of the phases! Good luck!! <3

Protozoans are important in the cycle of life because they break down ___________________.
its a science question

Answers

They break down nutrients, making them available for use

What type of mutation is shown in the DNA strand to the right given the original strand.



original - T A T G A C A A T ---> mutated strand - T A T C A C A A T

Group of answer choices

point mutation

deletion

insertion

translocation

Answers

the answer is insertion
Correct answer - Point mutation.

Why? - A point mutation or substitution is a genetic mutation where a SINGLE nucleotide base is changed, inserted or deleted from a DNA or RNA sequence of an organism's genome.

Why not Insertion - In genetics, an insertion (also called an insertion mutation) is the addition of one or more nucleotide base pairs into a DNA sequence. This can often happen in microsatellite regions due to the DNA polymerase slipping. ... On a chromosome level, an insertion refers to the insertion of a larger sequence into a chromosome. So, in short Insertion adds one nucleotide but not changes one nucleotide to another. Which is done by POINT MUTATION.

please answer quickly due soon

Answers

Nbddbdbbngentics are not y diff

In one student's family, two of the children have curly hair, one child has wavy hair, and the fourth child has straight hair.



Which of these processes is responsible for the variety of hair texture in this family?

Answers

Answer:

A. sexual reproduction

Explanation:

The inheritance of multiple phenotype genes that is the mother will have heterozygous as well as the father will have the heterozygous condition as well. The process is included in  genetics and the genetics is related to it.

What is genetics ?

It is defined as the study of genes and study of genes expression along with all the genetic factors associated with it.

The expression of the hair that is expressed in the progeny of the parents where the multiple expression is present can show incomplete dominance as well where none of the phenotype that is the alleles and the genes that are present in the parents will not express it in the child.

The process is also called as recombination where both the traits re expressed in the child and the characters both associated with the parents will express in the child.

Learn more about recombination at :

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A dumping site in the small town of Love Canal, New York, was used for the disposal of industrial chemical wastes from 1970-1975. In 1980, the housing inspector noticed traces of toxic substances in the basement walls of the local schools and homes. The local hospital noticed that there were 25% higher numbers of birth defects during 1970-1980. The hospital then offered free genetic tests and found that 20% of the adult volunteers/residents of Love Canal contained genetic abnormalities. The exposure to those industrial chemical wastes must have been the cause the genetic abnormalities and higher birth defect incidence. Your Interpretation:

Answers

Answer:

There is no control group and variables were not addressed.

Explanation:

In the context, it is given that there is a dumping ground in a small town called Love Canal and harmful chemical waste of industries are dumped there. Lately, it is noticed that there were traces of the toxic substances on the walls of the schools and the hospitals. The hospitals also noticed that during the period of 1970 to 1980, there were increase in the number of the birth defects in the area. The people of the Love Canal has genetic abnormalities and the chemical waste is responsible for it.

Thus it can be concluded that there is a no such any control group in this case. The confounding variables like the comorbidities as well as the family history of the genetic defects were not addressed.

Which provides most of the energy in ecosystems? Choose the correct answer.

O camivores

O producers

O generalists

O keystone species

Answers

Answer:

Producers.

Explanation:

Normal hemoglobin
Which statement explains the relationship between DNA and the hemoglobin in red cells?
A)The DNA sequence mutates to allow the hemoglobin to carry oxygen.
B)The DNA sequence folds at the proper location to shape the hemoglobin.
C)The DNA sequence is built from the RNA determined by the hemoglobin.
D)The DNA sequence encodes the amino acid sequence that forms the hemoglobin.

Answers

Answer:

CHEATING AHHHHHHH... WE cheating together tho

Explanation:

Which statement accurately describes how genetic information is transferred during meiosis?


Meiosis creates four daughter cells that have half the number of chromosomes that are present in the parent cells.


Meiosis creates two daughter cells that have half the number of chromosomes that are present in the parent cells.


Meiosis creates four daughter cells that have identical genetic information to the parent cells.


Meiosis creates two daughter cells that have identical genetic information to the parent cells.

Answers

Search I’m safari there is the answer I think

Meiosis is the reductional division which creates four daughter cells that have identical genetic information to the parent cells. Thus, the correct option is C.

What is Meiosis?

Meiosis is a special type of cell division which is also called as reductional division. This division takes place in the germ cells in sexually reproducing organisms which results into production of gametes, such as sperm or egg cells. Meiosis involves two rounds of division which ultimately result in the formation of four cells with only one copy of each chromosome or half genetic content.

Meiosis is divided into two divisions: Meiosis I and Meiosis II. In which, Meiosis II is similar to Mitosis and Meiosis I involves the reduction of genetic material to half.

Therefore, the correct option is C.

Learn more about Meiosis here:

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The whale has a pelvic bone but no legs attached, this is an example of:
a) homologous
b) vestigial
c) dichotomous
d) fossilized

Answers

Answer:

The answer is B

Explanation:

Vestgial

B is the answer





b) vestigial

What kind of agriculture is primarily practiced in the dark-shaded areas on the map above? Shifting cultivation A Pastoral nomadism B Cattle ranching C Mediterranean D Plantation

Answers

Mediterranean is the kind of agriculture is primarily practiced in the dark-shaded areas.

What is Mediterranean Agriculture?

This type of Agriculture is mostly practiced in Europe and Asia and it comprises of four main aspects which are:

Orchard farmingViticultureCereal cultivationVegetable cultivation.

The dark shaded which is around the Europe and and Asian continent makes Mediterranean the most appropriate.

Read more about Mediterranean Agriculture here https://brainly.com/question/1288750

(50pts) The evolution of the peppered moth over the last two hundred years has been studied in detail. Originally, the vast majority of peppered moths had light coloration. However, because of widespread pollution during the Industrial Revolution in England, the dark colored moths became much more common.

Question:

What specifically caused the shift in phenotype of the moths? Please explain in detail.

Answers

Answer:

The peppered moth is a temperate species of night-flying moth. Peppered moth evolution is an example of population genetics and natural selection and not artificial selection.

Explanation:

Answer:

The phenotype of the moth changed due to natural selection. During the Industrial Revolution, objects in England became a lot darker in color due to the settling of coal pollutants in the air. These light colored moths did not have good camouflage in this environment. Therefore, most of the light colored moths did not survive to reproduce. However, the dark colored moths had better camouflage, and were therefore more likely to survive and reproduce. This lead to a shift towards darker color moths, as they had a higher survival rate than the light colored moths.

Please help I’m lost I will mark brainliest!!!!!

What explanation does science give about how the Mouflon found on an island in the Indian Ocean were able to maintain their genetic diversity under extraordinary circumstances?

Answers

Answer:

According to Dr. David Coltman, the models of the genetic drift predict that the genetic diversity of the Mouflon should have been lost with time. However, the genetic diversity of the species has been maintained as natural selection is more essential to the evolutionary procedure than is considered generally. According to Dr. David Coltman, the models of the genetic drift predict that the genetic diversity of the Mouflon should have been lost with time. However, the genetic diversity of the species has been maintained as natural selection is more essential to the evolutionary procedure than is considered generally. The extreme conditions of the island are considered to have inhibited genetic drift, due to this premium advantage, the more genetically diverse mouflon on the island hold over their less genetically diverse counterparts.

Answer:

Dr. David Coltman, an evolutionary geneticist at the University of Alberta, says that although the models of genetic drift predict the genetic diversity of the Mouflon should have been lost over time. The genetic diversity of the Mouflon has been maintained because "natural selection is more important to the evolutionary process than is commonly believed," according to Dr. Coltman. The extreme conditions of the island are thought to have prevented genetic drift because of the premium advantage the more genetically diverse mouflon on the island hold over their less genetically diverse cousins...

(If this is an of several small islands near the coast of Iran then cross breeding with male aboriginal Iranian Muzzistock is sufficient to maintain diversity but has shown to be detrimental to both species as evidenced in the fall in diversity of the Iranian Moui population.

Given many subspecies exists-- some of which were quasi-domesticated, it is possible the gene pool was replenished via shipwreck survivors from Iranian/Persian pirate or merchant shipwrecks --as the sheep were often kept as ocean going companions, milk, and, meat sources.  It also depends on the islands location and if there was a land bridge 10-12-16,000 years ago during the last maximum glacial.)

According to Dr. David Coltman, the models of the genetic drift predict that the genetic diversity of the Mouflon should have been lost with time. However, the genetic diversity of the species has been maintained as natural selection is more essential to the evolutionary procedure than is considered generally. The extreme conditions of the island are considered to have inhibited genetic drift, due to this premium advantage, the more genetically diverse mouflon on the island hold over their less genetically diverse counterparts.

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