Do cell walls manage the movement of all substances into and out of the cell?

Answers

Answer 1
No, the cell membrane regulates movement of materials into and out of cells.

Related Questions

Becky is experiencing chronic pain from a medical condition that cannot be treated. In order to minimize the long-term emotional response to her pain, she would choose a modification of her a. Parietal cortex. b. Prefrontal cortex. c. Primary somatosensory cortex. d. Dorsal lateral thalamus. e. Posterior cingulate cortex

Answers

Answer:

b. Prefrontal cortex.

Explanation:

The prefrontal cortex is the cerebral cortex that covers the frontal lobe in the brain. The prefrontal cortex plays important roles in pain processing, as well as in pain modulation. In addition, this brain area is connected to other brain regions including the hippocampus, thalamus, amygdala, and further areas of the cerebral neocortex. It has been shown that changes in gene expression patterns, glial cells, neurotransmitters and inflammatory processes are triggered in the prefrontal cortex during both acute and chronic pain, and these alterations are able to modify its functioning, structure, and connectivity.

1. List the major ways in which humans are damaging the environment
2. Floods can devastate an ecosystem, however they can also have a positive impact. Please explain the positive impacts major floods can have on the ecosystem.
3. How do seasonal changes in temperature, water availability and sunlight affect ecosystems?
4. Propose 5 ways that humans can help minimise the negative effects both natural events and human impact can have on ecosystems.

Answers

Answer:

1. The large number of the pollution going into the air becaue of overfarming, and the high demand for unrenewable resources.

2. The positive impacts that floods can have is that they can water plants for places in drought like places such as California. For areas that are vastly dry, rain could be essential to humans, plants and animals in need of it.

3. These changes affect the ecosystem puts the ecosystems in a rather different situation than the ecosystem and those supported by it to adapt to the newcomings occuring of different seasonal changes and much more.

4.

-There can be alternatives to not destroying unrenawable resources.

-Use electrical cars that don't pollute the air.

-Be resourceful with their water and don't use more than needed.

-don't litter.

-recycle.

Nhen you are finished with the experiment, complete the following data analysis and submit your answe 1. Determine the volume of the box and the block. 2. Determine the ratio of the block to the box: volume of block (L)(W)(H) volume of bosc (DWH) 1. Multiply this number by 100 to turn it into a percent. 2. Complete this statement The volume of the block is percent of the volume of the box. 3. Determine the ratio of the number of hits to the number of shots: number of bits 100 shots 1. Multiply this number by 100 to turn it into a percent. 2. Complete this statement: The block was hit percent of the time. 4. Compare the results of step 2 to the results of step 3. Are the percentages similar? 5. Write a conclusion discussing the following items: 1. Based on your findings, do you think Rutherford's hypothesis was reasonable? 2. Restate Rutherford's hypothesis and describe how you tested it. 3. State whether your results support the hypothesis. If they do not, can you suggest some error in exp procedure (other than general human error) that might explain it? 4. Finally, explain how this experiment confirms the nuclear model of the atom and the idea that most of empty space.​

Answers

Answer:

These are just the answer key. You will have to fill in the lower half of the questions yourself. I did not consider 32% and 1.6% approximately the same but the answer key did.

Hope this helps:)

Explanation:

The box’s measurements are: length = 50 cm, width = 25 cm, and height = 25 cm. The measurements of the block are: length = 10 cm, width = 10 cm, and height is 5 cm.

Out of 100 marble drops or shots, the marble hit the block 32 times.

volume of the box = 50 × 25 × 25 = 31250 cm 3

volume of the block = 10 × 10 × 5 = 500 cm 3

Ratio = 500/31250 = 0.016 × 100 = 1.6%

The volume of the block is 1.6% of the volume of the box

Ratio = 32 hits/100 shots = 0.32 × 100 = 32%

The block was hit 32% of the time.

Percentages will be similar and both be small percentages

Answers will vary.

Describe four factors that influence a population growth rate?

Answers

Answer:

predators, the space which they live in, the amount of food, and diseases

hope that helps

Explanation:

please answer this for me

Answers

I think it’s “B” but if it isn’t please tell me.

About how much of Earth’s surface is covered by the Pacific Ocean? Identify the locations of at least two major mountain chains that extend over more than one continent.

Answers

Answer: covering more than 30%

Explanation:

What is a mutation? Any change in the sequence of DNA's nucleotide bases O a change in the sequence of DNA'S phosphate groups a change in the sequence of DNA's deoxyribose sugars Oa change in the sequence of DNA's sugar of phosphate backbone​

Answers

Answer:

A DNA mutation is when the DNA sequence begins to multiple out of control // copying mistakes.

Explanation:

describe differences in water and oil. use the following terms in your description in the correct context : polar, nonpolar, hydrophilic, and hydrophobic​

Answers

water is polar and hydrophilic. oil is nonpolar and hydrophobic.

Aquatic organisms are able to survive when the temperature decreases. These organisms survive even when the surfaces of lakes and ponds are covered with ice. Which property of water best explains how aquatic organisms can survive during freezing temperatures?

Answers

Answer:

Anomalous expansion

Explanation:

Anomalous expansion of water is the abnormal way water expands when exposed to low temperature.

At 4 degree Celsius , the density at the top layer is usually at the Maximum which makes the water sinks down and then the water in the lower layer rises up.

When the temperature drops below 4 degree Celsius, the water molecules at the top then freezes leaving the denser molecules at the bottom which doesn’t freeze as a result of their high density.

This way, organisms can survive in the water due to the lower layer not freezing.

How do ultrasound waves clean jewellery

Answers

Answer:

They use ultrasound waves and chemicals combined to create bubbles that "cling" to the foreign particles such as dirt, oil, and unknown substances.

Explanation:

Ultrasonic cleaners are useful for jewelry cleaning and removing tarnish. They use ultrasound waves and chemicals combined to create bubbles that "cling" to the foreign particles such as dirt, oil, and unknown substances. The high frequency waves are sent out and pull the contaminants off the object.

Answer:

Ultrasound waves and chemicals are combined to create bubbles that "cling" to foreign particles such as dirt, oil or other unknown substances. The waves are sent out to extract these particles.

Explanation:

HELPPP PLSSSS I NEED SOON

Answers

Answer:

j

Explanation:

the answer is J haha

PLEASE ANSWER: Is oceanography a hard class to take in high school?

Answers

Answer:

There is quite a bit of work but if you are willing to do it and pay attention in class then it's easy.  my teacher makes  the class a lot of fun.

Explanation:

Answer:

it's pretty frustrating, mainly because there's an overwhelming amount of work, unless that's just my school but other than that its pretty easy, you just have to memorize a lot of stuff.

Explanation:

I’m not sure what the answer is.

Answers

Answer:

The answer is A

Explanation:

Its A, it includes 5-carbon sugars.

What is the root word of compositional?

Answers

Answer:

compose

Explanation:

Hey :)

Composition is another word for writing/ the act of writing or the piece of writing that results

It also refers to what something is made of

The word composition comes from the Latin componere, meaning "put together" and its meaning remains close to this

Any mixture of ingredients can be called a composition

Hope this helps:)

state 4 ways by which through which a soil is depleted ​

Answers

Answer:

Explanation:

Leaching – Plant nutrients are lost beyond the reach of plant roots. Usually caused by excessive rainfall washing nutrients deep down into sub-soil beyond new roots reach.

Soil erosion – Top soil is lost by the agent of erosion e.g. wind, water.

Monocropping – This utilizes only specific nutrients from a particular zone making it exhausted. -It also causes accumulation of certain pests and diseases.

Continuous cropping –This continuously exhaust the fertility of land unless the the land if fallowed.

Change of soil PH -Use of either acidic or basic fertilizers affect soil pH and Consequently the presence of micro-organisms hence soil fertility affected.

Burning of vegetations –Destroys organic matter and soil structure. Nutrients are lost and soil exposed to erosion.

Accumulation of salts – Common in waterlogged areas and semi-arid areas in which poor drainage causes evaporation during the dry periods, making the soil saline.

WILL GIVE BRAINLIEST
The region of the earth where ecosystems interact

Answers

the answer is biosphere

Which of the following are chemical reactions? Check all that apply
A. Pouring chocolate sauce into milk to make chocolate milk
B. Making caramel sauce
C. Getting a suntan
D. Mixing oil and vinegar to make salad dressing

Answers

Answer:

b and c

Explanation:

In b you'll be mixing and heating up the sauce creating a new compound from  older components and in c, the ultraviolet lights will change your skin cells.

Answer:

B AND C

Explanation:

The epidermis is a muscle
True
Or
False

Answers

Answer:

false

Explanation:

because derm=skin and skin is not muscle skin is a type of tissue

hope this helped :)

When soil or rock is carried into a water body due to erosion.

Topography

Infiltration

Sedimentation

Runoff

Answers

I don’t understand, can you be more specific?
The answer is runoff

The cycle of the moon’s phases is predictable. About how long does it take to cycle from a first quarter moon to a full moon?



Group of answer choices

A. About one day

B. About one week

C. About one month

D. About one year

Answers

Answer: C

Explanation: The Moon has phases because it orbits Earth, which causes the portion we see illuminated to change. The Moon takes 27.3 days to orbit Earth, but the lunar phase cycle (from new Moon to new Moon) is 29.5 days.
C. About one month.....

what enzymes are produced by small intestine
PLEASE HURRY

Answers

The pancreas secretes digestive enzymes (lipase, protease, and amylase) into the small intestine through a tube called the pancreatic duct. These enzymes help digest fats, proteins, and carbohydrates in food.

HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN

Answer:chymotrypsin

Explanation:it gets secreted

Help Fill in the blanks?

Answers

Answer:

#5 sunlight

#6 DIe  

#7 maybe bacteria

#8 i dont know

#9 DIe

#10 oxygen

These should be right

Let me know if these were wong

The term "phase" only refers to a state of matter in science (True or False)
True
False

Answers

False it is not just used in the mater of science

Use subsoil in a sentence.

Answers

Answer:

The soil is loam and the subsoil Old Red Sandstone, interstratified with cornstone at Pippin's Hill in the north. Copy

Many soils have a topsoil layer that is more permeable than the clay subsoil. Copy

It also includes the air and water space above, and the subsoil and bedrock below that.

Explanation:

What is the first aid for cramps? ​

Answers

Answer:

Take a hot shower

Massage the cramped area

Yup thats all i know

We all know that any cramp in our muscles is formed due to the secretion of lactic acid . This lactic acid is formed due to our muscles doing anaerobic respiration instead of aerobic respiration . Our muscles require oxygen to break down glucose itn energy and carbon dioxide . But our body muscles wont get this much needed oxygen due to which they will start to do anaerobic respiration where they produce energy without the usage of oxygen . When such a respiration happens lactic acid is secreted in our stomach , which makes our muscles start to form cramps . So we can say that tightness or soreness of muscles due to our muscles lacking oxygen is called as muscle cramps . So , a hot bath will be a very good remedy for cramps as it will let the oxygen pass through the body , thereby completely help the lactic acid turn into energy . When lactic acid breaks down completely to form energy the muscle cramps go away . Another first aid for cramps would be massaging the area with cramps . This will also increase the oxygen flow thereby making the lactic acid change into oxygen due to which the pain will go away . Another remedy for muscle cramps would be hot nor cold pads as they help ease the pain .

Based on your observations, how many cells are in anaphase?

A.14
B.41
C.10
D.19

Answers

Answer:

D

Explanation:

I think there are 19.

Answer:

There are 19 in the anaphase

Answer D.

Explanation:

Just did the Test.

Why only certain cell undergo mitosis
and why other cells undergo meiosis

Answers

Explanation:

Mitosis allows for cells to produce identical copies of themselves, which means the genetic material is duplicated from parent to daughter cells. Mitosis produces two daughter cells from one parent cell. Single-celled eukaryotes, such as amoeba and yeast, use mitosis to reproduce asexuallyand increase their population. Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction. ... Meiosis begins with a parent cell that is diploid, meaning it has two copies of each chromosome.

Hope my answer explains things better for you!!

Molecules that contain carbon and make up livin things

Answers

All living things contain Carbon in some form ,carbon is primary component of macromolecules,including protein,lipids,nuclei acid and carbohydrates.carbon molecular structure allows it to bond in many different ways and with many different elements

HOPE IT HELPS YOU,,,,


Need help pls I’m being timed

Answers

I believe the left chamber has a higher concentration of neon gas because it has more neon atoms in it, and the right chamber has a higher concentration of helium gas because it has more helium atoms in it.

Explain 3 ways of checking soil depletion​

Answers

You can check soil depletion by:

1. Contour ploughing

Ploughing along contours on a slope prevents soil from being washed away by rains and or by surface run-offs. Contours act like bunds. Terraces are leveled into step-like small fields with even slopes. Doing this is common in Asian countries.

2. Terrace Farming

On hilly slopes, terraces act as bunds and prevent the soil from being washed away by running water. This is practiced in Asia and the USA.

3. Strip Cropping

In this system, crops are grown by alternate strips of land in order to check the effect of the winds.
Other Questions
Select the correct answer from each drop-down menu Simplify Whats the ratio of 40 to 30 I need help Don claims that perpendicular lines are lines that intersect such that at least one of the angles is a right angle.Determine whether each statement below justifies the claim. Select Yes or No for each statement.Yes NoIntersecting lines allow for the creation of four angles with a common vertex.O ODIf one of the angles is a right angle, the angle vertical to it must also be a right angle.Because linear pairs are complementary, the remaining two angles must also be right angles. O Listen and match the audio with its correct image.Audio 01: Audio 02: Audio 03: Audio 04: Match Term DefinitionAudio 01 A) A young woman reading in bedAudio 02 B) A man cleaning vegetables in a kitchen sinkAudio 03 C) A nightstand with a lamp on it beside a bedAudio 04 D) A dresser to the left of an armchair 2. Which lists the stages of a thunderstorm inorder? 5. What is the quotient if you divide 9/12 - 1/6 A classic example of osmosis in the classroom involves placing an egg in water or syrup. The egg first sits in vinegar until the shell is dissolved. Then, it is placed in a glass of either tap water or syrup. The mass of the egg is measured. The results are in the chart below. Use what you know about osmosis to explain why the egg increased in mass in the distilled water but decreased in mass in the corn syrup. Identify the labeled structures. A B C D E What is meant in the text when the statement is made that there is more to distance than just miles? The Senate is given the responsibility of approving presidential nominations. Why would Dickinson use a steady rhythm within each line of "The Sky is Low, the Clouds are Mean"?to underscore the meaning of the poemto create unity throughout the poemto clarify the mood of the poemto underscore meaning What act came after the first one that was taxed? Need help ASAP! Which sentence uses an objective tone?A-We will plant the best garden of any school in the area.B-The new campus garden will surely be envied by other schools.C - A garden would provide numerous benefits to the students.D-You will probably agree that gardens have many benefits. What is the slope of a line perpendicular to the line whose equation is12x 3y = 81. Fully reduce your answer. Which of the following is an example of mainstreaming?A. At Lincoln High School, students use the Internet instead oftextbooks.O B. At Wildwood Elementary School, lunch is provided on theweekends to low-income students.C. At Cobb Middle School, students with learning disabilities are inthe same classrooms as other students.D. At Chenango Preschool, students with siblings eat lunch duringdifferent lunch periods. the intercept is a point where the graph of a function or relation does not intersect with the y- axis and the x-axis of the coordinate system : true or false Please help me! thank you!!! what are three causes and effects of the columbian exchange? Why did people come to the new world I need help please!!!!