What is the nucleus and nuclear membrane?

Answers

Answer 1
A nucleus is the brain of a cell. The nuclear membrane is a double wall that encloses a cell nucleus
Answer 2

Answer:

A nucleus is the control center of the cell.The nuclear membrane is a double wall that surrounds the nucleus.

Explanation:


Related Questions

In multicellular organisms, groups of tissues form:
A. vacuoles.
B. organs.
C. cells.
D. organelles.

Answers

Answer:

b

Explanation:

brain pls

6. The
of a virus is to the cell membrane in a cell because they are both used to protect the

Answers

Answer:

This question is asking to fill the blank spaces. The answers are:

1. Capsid

2. Cell content

Explanation:

A virus is an organism that is incapable of reproducing itself without invading an host cell. It is generally made up of a genetic material (DNA or RNA), and a protein coat called capsid. This CAPSID is the part of the virus that protects its genetic material and content.

This function of capsids is similar to that of the cell membrane in prokaryotic and eukaryotic cells as they both function to protect the cellular content including the genetic material.



Name two models used
to show the transfer of
energy in an ecosystem

Answers

Answer:

Flow of Energy can be explained by means of two models namely: single channel energy model and Y-shaped energy model.

Hope this helps :)

(Urgent!) Explain how laundry detergent can be a product of biotechnology.

Answers

Answer:

Another important class of compounds produced by biotechnology is enzymes. One of the most significant commercial enzymes of this type is subtilisin, which is produced by a bacterium because many stains contain proteins, the manufacturers of laundry detergents include subtilisin in their product.

Explanation:

(please mark me brainliest if you can)

Answer:

Explanation:

Most biological laundry detergents contain lipase and protease enzymes, both of which are found in the body. Lipases break down fats and oils, while proteases work to break down protein chains. Their ability to break down these compounds makes them excellent for stain removal.

the blood vessels in the walls of the heart are:-

a) pulmonary vessels
b) caval veins
c) coronary vessels
d) Lymph vessels​

Answers

Answer:

A) pulmonary vessels

Explanation:

hope it helps you......

Question 9
How do animals get nitrogen that is stored in the soil?
O A) Animals do not take in the nitrogen stored in the soil.
O B) Bacteria change the nitrogen into a gas that the animals breathe.
OC) Plants ab orb the nitrogen from the soil and animals can eat the plants.
O D) The animals can eat the soil and absorb the nitrogen through their digestive system.​

Answers

Answer:

the answer is C

Animals get the nitrogen they need by eating plants or other animals that contain nitrogen. When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use

Do you think an Ecologist would classify nutrients as living things or nonliving things? Explain why. Please help this is a school assignment I will mark brainlliest for first answer.

(This is 7th grade science).

Answers

they would classify it as non living

Explanation:

My proof is I'm in 8th grade

Answer:

An Ecologist would classify nutrients as non-living things. Living things require water, food, shelter, and most important of all, nutrients that are essential to their diet to survive. For this reason I believe they would be classified as non-living, since nutrients don't need these things to survive and provide health to things that are alive.

Dew point is a
A) Mass
B) Percentage
C) Ratio
D) Temperature

Answers

Answer:

The answer is that Dew point is a Temperature!!

Explanation:

The atmospheric temperature (varying according to pressure and humidity) below which water droplets begin to condense and dew can form.

Hope this helps!! ;)

An organism with alleles Dd for eye color can display either the dominant or recessive trait?

Answers

Dominant because the D is the dominant trait and will always be dominant as long as there is a capital letter

_________ percent of total water withdrawals come from surface water.
85
79
34

Answers

Answer:

79

Explanation:i hope this the answer i looked it up

I am pretty sure is 34 but I can be wrong

Ryan makes $1000 per month before taxes are taken out. His total taxes come to
about 20% of his monthly paycheck. What is Ryan's take home pay?

Answers

1000 x .20 = 200

1000 - 200 = 800$ take home

can anyone help me plz


Below is a photo of algae, microorganisms that live in water.
What is the role of these organisms in their environment?
A. They produce food that other organisms eat.
B. They return nitrogen gas to the atmosphere.
C. They break down the wastes of other organisms.
D. They cause diseases in many kinds of animals,

Answers

It’s either A or B.
They produce the food web for all aquatic organisms. So, I would go with A, but I am bot sure.
Good luck!

Which describes one thing that happens during thermoregulation when a sensor
recognizes that a person's temperature is 39 degrees C?

1. The muscles in the body expand and contract quickly, producing friction.
2. Blood vessels under the skin expand.
3. Sweat glands are "shut off."
4. Muscles under the skin make body hair stand on end.

Answers

Answer:

Muscles under the skin make body hair stand on end.

Explanation:

The body needs to keep its temperature around a set point of about 37 degrees Celsius.

Muscles under the skin make body hair stand on end happens during the thermoregulation.

What do you mean by thermoregulation?

Thermoregulation is a mechanism by which mammals maintain body temperature with tightly controlled self-regulation independent of external temperatures. Temperature regulation is a type of homeostasis and a means of preserving a stable internal temperature in order to survive.

Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different.

Thermoregulation is controlled by the hypothalamus, which is a small structure in your brain. If the hypothalamus senses your body's temperature is too high or low, it sends signals to your nervous system.

Learn more about thermoregulation:

https://brainly.com/question/15276860

#SPJ2


Calculate the acceleration between D and E.

Answers

Answer:

I believe the answer is D.5m/s/s

What is one function of MEIOSIS? (Choices in picture)

Answers

search it up!! it’s a multiple choice questions and all you need to do it search

Answer:

A

Explanation:

Meiosis is what happens when a parent cell splits into four smaller daughter cells, each of which has 1/2 the number of chromosomes in the parent cell. Meiosis is used to create gametes.

As we know that the leaves of plants are waterproof due to cuticle. On the same way, take
some pieces of paper of leaf size and make them waterproof. After completion, put half of these
paper pieces in cold water and half in hot water. Do all the pieces of paper remains waterproof?
Explain your observations and results with justifications

Answers

no because the outside laters become cold or hot and it loses its waterproofing.

what will happen to OTHER ORGANS if kidneys malfunction due to certain disease

Answers

Answer:

when your kidneys get affected in a negative way waste products start to build up in your body. It can cause some breathing troubles, poor sleep, weakness in your body,etc.

Explanation:

A ____ surface will absorb all colors.
A green surface will absorb all colors and reflect ____

Answers

Answer:

A Black surface will absorb all colors.

A green surface will absorb all colors and reflect green.

=> Any surface which absorbs all the colors appear to be black because no color is reflected.

=> A surface color is a color which is reflected by it.

For example:

If a surface is red colored, This means that it reflects red color. That's why it appears to be red.

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Hope this helped!

~AH1807

HELP!!!!!
Scientists claim that climate change is happening because Earth is warming. They
also claim that humans have helped cause the warming by adding greenhouse
gases to the atmosphere. Other people claim that Earth is not experiencing climate
change because some winter days are still very cold.

Use evidence to evaluate each
claim about climate change.

Answers

Answer:

both right in own way

Explanation:

first;green house gas obviously helps to increase temperature of earth.

second;some winter days are still very cold because of global warming. this is also due to such work which helps to increase temperature of earth as well as climate change.

Answer and Explanation:

first;green house gas obviously helps to increase temperature of earth.

second;some winter days are still very cold because of global warming. this is also due to such work which helps to increase temperature of earth as well as climate change.

Compare and contrast evaporation and convention and how the processes move water through the water cycle

Answers

Answer:

Evaporation and convection are both heat transfer processes that transfers heat from hotter to colder regions. Evaporation however involves a change of state of the molecules whereas convection does not, rather occurs due to difference in densities of the molecules.

In the water cycle, both evaporation and convection work to lift liquid water from the earth's surface into the atmosphere where they condense into water vapor and eventually fall as rain.

Explanation:

Evaporation is a process by which a liquid turns into vapor when it absorbs heat.

Convection is the process of heat transfer by the actual movement of the heated molecules from one region to another.

Comparison:

Both processes involves transfer of heat

Both processes involves movement of molecules

Contrast:

Evaporation involves a change of state of the molecules, whereas convection does not.

Evaporation is a surface phenomenon whereas convection occurs throughout the whole fluid in cycles

Evaporation results takes heat away from a body whereas convection transfers heat to a body

In the water cycle, when the heat from the sun heats up the earth's and water surfaces, the water molecules absorb heat and turn to water vapor by the process of evaporation. The water vapor rises into the atmosphere.

During convection in the water cycle, heated air near the earth's surface rises as it becomes less dense than cold air and carries along water vapor with it into the atmosphere. As the hot air water vapor mixture rises, it becomes cold and condenses into water vapor which later falls as rain.

Describe the Cell Cycle [Interphase, G1 phase, S phase, G2 phase]
describe them all please :)

Answers

G1, S and G2 phases are all cumulatively referred to as interphase involving the growth of a cell and the replication of its DNA. Initially in G1 phase, the cell grows physically and increases the volume of both protein and organelles. In S phase, the cell copies its DNA to produce two sister chromatids and replicates its nucleosomes. Finally, G2 phase involves further cell growth and organisation of cellular contents. The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells. The S phase only begins when the cell has passed the G1 checkpoint and has grown enough to contain double the DNA. S phase is halted by a protein called p16 until this happens.

Is this for a test or is it homework

which of the finches in the
diagram above is most likely to have adapted to an area where the main
food source is large, hard seeds?
А
(4)
B
(3)
с
(2)
D (1)

Answers

Answer:

I1

Explanation:

if something needed to enter the cell and couldn't go through the phospholipid bilayer, how else could it enter the cell?

Answers

Answer:

Through facilitated diffusion

Explanation:

A molecule that finds it difficult to enter through the cell membrane's phospholipid bilyaer can be assisted in doing so through a process known as facilitated diffusion.

Ordinary diffusion will not permit the movement of molecules against a concentration gradient or molecules can be prevented from passing the phospholipid bilayer due to their sizes/charges. Within the phospholipid bilayer exists special passages lined with carrier or channel proteins.

These proteins facilitate some molecules that will ordinarily not pass through the bilayer to pass through their special passages. This process is referred to as facilitated diffusion.

which would best explain how tobais contracted mononucleosis

Answers

Answer:

Tobias drank from a water fountain that was contaminated.

Explanation:

Infectious mononucleosis is a disease caused by a virus and is also known as kiss disease. The virus that causes the disease is transmitted through saliva, so it is most often transmitted by kissing, but it can also be transmitted by sneezing, coughing, using the same cup or cutlery with an infected person.

Galactosemia is an inherited disorder in humans. A person with the disorder cannot digest the sugars in milk. The allele for normal digestion (G) is dominant; the allele for galactosemia (g) is recessive. A female who is heterozygous for the galactosemia trait and a male who has galactosemia have a child. In your response, be sure to: Identify the genotypes of the mother and father

Answers

Answer:

This question is incomplete, the remaining part of the question is:

" Explain how this disorder can be passed on in the family. In your response, be sure to: Identify the genotypes of the mother and father"

Please find the explanation below

Explanation:

According to this question, the Galactosemia trait is an inherited disorder in humans that causes inability to digest the sugars in milk. The allele for normal gene (G) is dominant over the allele for galactosemia (g). This means that a heterozygous human (Gg) will not be normal (no galactosemia).

In this family, female who is heterozygous for the galactosemia trait (Gg) and a male who has galactosemia (gg) have a child. Note that each parent will produce gametes as follows:

Gg - G and g gametes

gg - only "g" gametes

To inherit this disorder or for the parents to pass on this disorder to their child (children), they have to both contribute the allele for galactosemia (g) in their gametes to produce a child that has two galactosemia alleles in his/her genotype i.e. gg

This means that in this cross (see attached image), the probability of their child to have the disorder is 1/2 or 50% while the probability of having a normal child is also 1/2 or 50%.

The frequency of phenotypes of traits controlled by__ follows a bell-shaped curve

a) multiple alleles
b) polygenic inheritance
c) autosomal recessive inheritance
d) co-dominance

Answers

Answer:

B

Explanation:

The frequency of phenotypes of traits controlled by__ follows a bell-shaped curve - b) polygenic inheritance

A polygenic traittype of inheritance patternis one whose phenotype is influenced by more than one gene.display a continuous distribution, such as height or skin color, are polygenic.the frequency follows a bell-shaped curveThe bell shape suggests most people fall in the middle of the phenotypic range, while very few people are at the extremes

Learn more:

https://brainly.com/question/4070055

This is the answer to this question in case y’all need it because it was very hard for me to find it.

Answers

Answer:

So awesome! Thanks! :))

Relate the surface area of a cell to the transport of materials.

Answers

If the size of a cell increases it will be more difficult (all other things being equal) for diffusion to transport materials out of the cell. Therefore, less of the cell's interior will be able to come in contact with the cell's surface. If less of it comes in contact, less of it can cross the cell membrane.

hope this helps and please mark me as brainliest please

What are the chances of a child with brown eyes? *

Answers

Answer:

Each child has a 25% chance of having brown eyes and a 75% chance of having blue eyes.

Explanation:

I added the little bit of extra info just to be helpful

Why is an excess increase of calcium detrimental to the muscle?

Answers

Answer:

excess calcium in your blood was leached from your bones, which weakens them

Explanation:

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