How many membrane layers cover the nucleus?
O A. 3
O B. 1
O c. 2
O D.O

Answers

Answer 1

Answer:

nuclear envelope is made is known as nuclear membrane it is covered by two lipids by layerSo answer is 2

Related Questions

What is the correct answer?

Answers

Answer:

Friction

Explanation:

There u go

would the smell of perfume make it across the room faster if it were colder or hotter in the room ?

Answers

Answer:

hotter

Explanation:

Answer:

hotter

Explanation:

Which of the following would not be expected to contain tissues?
A. Harvester ant
B. African elephant
C. Unicellular bacteria
D. Oak tree

btw i picked C. Unicellular bacteriawhat

Answers

You got it correct, it’s C.

Unicellular bacteria does not contain tissue. Thus option C is correct.

What are the types of epithelial tissue in human ?

A tissue is a cluster of similar cells that perform specific function.

Epithelial tissue one most important type of tissue.

It can be up two types such as Simple epithelium and Stratified epithelium.

Simple  epithelium is a single layer of identical cells, observed at sites of secretion, absorption of substances.

It can be up three types Squamous epithelium, Cuboidal epithelium, Columnar epithelium.

Simple Squamous epithelium is single layer of flattened cells found Lungs-alveoli, Blood vessels-endothelium.

Simple cuboidal epithelium found in tubules of nephrons and glands which is involved  secretion, absorption, and excretion, etc.

Simple columnar epithelium found in the inner layers of the stomach, intestine, trachea,

Stratified epithelium which is multiple layers epithelial tissue can be up 4 types squamous, cuboidal, columnar, Psuedo-stratified columnar epithelium.  

Thus option C is correct.

Learn more about tissue, here:

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What is the lowest level of organization

A) nerve cell
B) brain tissue
C) brain(organ)
D) organism

Answers

Answer: The lowest level of organization is A.) Nerve Cell aka. Cell because it's just cell.

The lowest level of organization - A) nerve cell

Cellsare the most basic unit of life at the smallest level of organization.cells are joined together to form a structure called is tissue as nerve cells are cells that form together to make brain tissue.Tissues form organ and organ ultimately form an organ system of an organismvarious organ systems form an organism together

Thus, The lowest level of organization - A) nerve cell

Learn more about the cellular organization:

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What does evaporation change from ? Solid ———> liquid Liquid ———-> Solid What does condensation change from Liquid——-> solid Solid———> liquid

Answers

Answer:

Evaporation : Liquid --- Gas (Vapor) ; Condensation : Gas (Vapor) --- Liquid

Explanation:

Evaporation is the change of a liquid into gas or vapor, usually by increase in temperature. Eg : Water evaporation into vapors during water cycle, due to sun heat.

Condensation is the change of gas or vapor into liquid, usually by decrease in temperature. Eg : Vapors condensation into water droplets during water cycle, due to lower atmospheric temperature at higher height.

Which is one of the contributions that supported the development of the Clean Water Act? ​

Answers

Answer:

E) detailing the number of countries affected by contaminated water around the world

Explanation:

Cells that do not contain a nucleus are known as what?

Answers

Answer:

prokaryotes

Explanation:

Write the importance of medicinal plants in human life.​

Answers

Answer:

The importance of medicinal plants in human are as follow:

Medicinal plants are considered as a rich resource of ingredients.It is used in drug development either pharmacopeial and none pharmacopeial or synthetic drug.It has it's origin in ancient culture .Using medicinal plant doesn't have any side effects.

Answer:

hope it'shelps you have a great day keep smiling be happy stay safe ☺

5. The structures pictured in Fig. 1 are found on the undersurface of a leaf.
What is the name and function of these structures?

Please i really need help because i’m french and it’s hard

Answers

Answer:

I think the black ones are stomata or guard cells and they are attached on epidermis

Stomata is used for breathing and epidermis is the skin(outer layer) of plants

Explanation:

I hope this helps a little please give me brainliest

Answer:

epidermis

provides barrier against injury and water loss

guard cells

surrounds stomata also closes and opens stomata

stomata

allows gaseous exchange

Explanation:

Explain what the title of this article and video, "The Albatross, Harbinger of Human Migrations" means. In what ways should humans and their governments act like the scientists working with albatrosses

Answers

Answer:

Albatross are the indicators for migration of humans.

Explanation:

The Albatross, Harbinger of Human Migrations" means that Albatross are the indicators for migration of humans from that location. Humans and their governments act like the scientists working with albatrosses by making environment suitable for them. The humans have to reduce interventions in the places where they are present in order to increase occur in their population. governments should made policy for them to secure their habitat and prevent them from extension.

List the inputs and
outputs of photosynthesis.
What part(s) of the plant
are responsible for taking
in each of the inputs?

Answers

Answer:

Photosynthesis Inputs. 6H2O, 6CO2, (light) energy.

Photosynthesis Outputs. C6H12O6 (glucose), 6O2.

Light Reactions Inputs. Light (energy), ADP, Pi, NADP, H2O.

Light Reactions Outputs. O2, ATP, NADPH.

Calvin Cycle Inputs. CO2, ATP, NADPH.

Calvin Cycle Outputs. G3P.

Explanation:

Which statement describes why natural populations cannons keep growing exponentially ?
A. Disease always affects large populations
B. Humans always disturb ecosystems
C. Resources are always limited
D. Natural disasters always control growth

Answers

Answer:

C resources are always limited

Explanation:

The answer is c resources are always limited

ANSWER THIS NOW PLS

Ground tissue includes and is responsible for ALL of the following, EXCEPT one of these

A) Transport of water

B) Site of photosynthesis in the leaf

C) Metabolism, storage, support

Answers

A,c is the best way to get the

A vacuole is the cell's _______________.
A: control center
B: storage place
C: energy processor

Answers

B storage place it’s B

Answer: B- storage place

Explanation:  

PLLZZ I NEED HELP DUE SOON!!!!
What type of molecule forms the antibodies found in the human immune system?

Answers

Answer:

An antibody

Explanation:


The area labeled X is known as

A.
an atomic nucleus
B.
an active site
C.
a pH indicator
D.
a temperature regulator
ecule

Answers

I think it’s c I’m not very sure

An active site is the area at where the enzyme gets attached. The are labelled X is known as an active site.The correct answer is option B.

What is an atomic nucleus ?

An atomic nucleus is the central region of the atom at which the number of protons and neutrons are in abundance. The charge carried by the nucleus is positive in nature.

The picture shows the lock and key method where it is the relation between enzyme and substrate where the enzyme and substrate are almost same in shape where the lock is the substrate where the enzyme is of key shaped and they both fit in.

An active site is the region of the reactant or substrate where the enzyme will bind in and the reaction will form  a product. The binding of both the constituents depend on the binding energy and activation energy of the reaction.

Learn more about active site at :

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PLEASE HELP I WILL GIVE YOU MULTIPLE BRAINLYS ON DIFFRENT POSTS!!!!!!!

Answers

Explanation:

hy i can help you but what we have to do in that pdf

edicted answer - oh! i got that

Here I cant see the pic
I saw from the comments
Can u mark me as brainliest
Stay safe !

If a DNA strand has 32 % guanine, what percent thymine does it contain?
A) 36%
B)18%
C)64%
D)32%

Answers

Answer:

B

Explanation:

Guanine and Cytosine pair together. So, if 32 percent is guanine, then 32 percent should also be cytosine. This is a total of 64 percent. The remaining 36 percent is split between thymine and adenine. So, Thymine will have half of 36 percent which is 18 percent.

please help, give explanation please!

Answers

Answer:

1. 0 chance (0%)

2. 2 chances (50%)

3. 4 chances (100%)

Explanation:

the way a punnet square works is that you basically multiply two genes. for example:

    b   b

B Bb Bb  

b bb bb  

then, if it's uppercase, it is dominant. if it's dominant, it will take over the recessive gene. if it was Bo, B being brown and dominant, and o being recessive and orange, then brown would take over. there are also cases with codominant but that's not in the question. feel free to ask me anything about this.

how you think reproduction differs among these four animals.
a. bird. b. human c. ants d. sea stars

Answers

Answer:

c

Explanation:

Mike works as a nurse in a hospital he accidentally gave a patient a hypotonic solution. such as distilled water instead of an isotonic solution suck as saline

what changes will occur in the patients cells ?
what can be done to fix this problem ?​

Answers

Answer:

The patient's cells will swell and then burst. The solute concentration outside the cell is lower than inside the cell, so water will move into the cells.

Mike would have to give the patient a hypertonic solution, which will cause water to move out of the cell and the cell to shrink followed by an isotonic solution, which should regulate the concentration inside and outside the cell.

Hope that helps.

Suppose the great, green galoofus lizard has 28 chromosomes in the nucleus of its unfertilized eggs. Predict how many chromosomes will be in the skin cells of a great, green galoofus lizard?

Answers

Answer: 56

Explanation:

Because an unfertilized egg has half the chromosomes of a fertilized egg. The fertilized egg then splits, and continues splitting until the lizard is born. Always remember, whenever a question  talking about an unfertilized egg, it has half the chromosomes of a fertilized egg. One more side note, it doesn’t matter what body part you talk about. A skin cell will have the same number, and identical chromosomes compared to a heart cell. (So long as it’s the same organism, if it isn’t, but part of the same species, it will have the same number of chromosomes, but it may have a unique set of chromosomes). If you want me to go into detail, I can, just respond to this answer.

ill give brainliest to anyone who helps me with this
Describe the processes of transcription and translation in your own words
Terms to use in your answer: amino acid, anticodon, codon, gene, messenger RNA, nucleotide, ribosome, RNA, RNA polymerase, transcription, transfer RNA, translation.

Answers

Answer:

Explanation:

The genes in DNA encode protein molecules, which are the "workhorses" of the cell, carrying out all the functions necessary for life. For example, enzymes, including those that metabolize nutrients and synthesize new cellular constituents, as well as DNA polymerases and other enzymes that make copies of DNA during cell division, are all proteins.

In the simplest sense, expressing a gene means manufacturing its corresponding protein, and this multilayered process has two major steps. In the first step, the information in DNA is transferred to a messenger RNA (mRNA) molecule by way of a process called transcription. During transcription, the DNA of a gene serves as a template for complementary base-pairing, and an enzyme called RNA polymerase II catalyzes the formation of a pre-mRNA molecule, which is then processed to form mature mRNA (Figure 1). The resulting mRNA is a single-stranded copy of the gene, which next must be translated into a protein molecule.

what is a tentative explanation?

Answers

Tentative means possible
So a possible explanation of any matter on whuch you are working will be called astentative explanation which may be correct or incorrect

From which type of cells did multicellular organisms arise?

Answers

eukaryotic cells!!!!!!!!

Answer:

Unicellular eukaryotes

Explanation:

What is the difference between the euphotic zone and the bathyal zone of the ocean

Answers

Answer:

Euphotic zone is the layer closer to the surface that receives enough light for photosynthesis to occur. Beneath lies the disphotic zone, which is illuminated but so poorly that rates of respiration exceed those of photosynthesis.

Bathyal zone is the part of the pelagic zone that extends from a depth of 1000 to 4000 metres below the ocean surface. It lies between the mesopelagic above, and the abyssopelagic below.It is ala known as midnight zone.

Explanation:

how would you describe the motion of a transverse wave

Answers

Answer:

Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance. ... Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.

Explanation:

hope it helps you.

Calculate the momentum for the following football player: Todd: mass = 80 kg, velocity = 1.7 m/s

Answers

Answer:4.9

Explanation:80+1.7=4.9

Please answer ASAP!! Will give BRAINLIEST to Right ASNWER
PLEASE BE SERIUS ITS FOR A TEST
What is the difference between extrusive and intrusive igneous rock?

Intrusive igneous rock forms below ground and extrusive igneous rock forms above ground.

Intrusive igneous rock forms above ground and extrusive igneous rock forms below ground.

Intrusive igneous rocks form when sediments are compacted together and extrusive igneous rocks form when sediments separate.

There is no difference, they both form above ground.

Answers

Answer: I'm pretty sure it's the first one

Explanation: I don't know for sure but I'm pretty sure when I learned it they said that extrusive is above ground and intrusive is below ground. Don't take my word for 100% though

Analyze the diagram below:



According to the model represented in the diagram, which of the following would cause the cell to not express the lacZ, lacY, and lacA sequences?


Binding the RNA polymerase to the gene

Preventing the repressor from binding to the lac operon

Removing the inducer

Transcribing the lacl sequence

Answers

Answer:

Transcribing the lacl sequence

Explanation:

lacZ, lacY, and lacA sequences are the structural genes, which needs to be expressed in order to produce their proteinous enzymes required for the breaking down of lactose sugar. The transcription of these three genes must occur with the aid of RNA polymerase binding to them.

However, a gene sequence called lacI encodes information for an repressor, which when expressed can inhibit the expression of the genes lacZ, lacY, and lacA. Hence, the TRANSCRIPTION OF THE LACL SEQUENCE cause the cell to not express the lacZ, lacY, and lacA sequences.

Answer: removing the inducer

Explanation: all sequences need an inducer present in order for them to be expressed

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