11. The random movement of particles like O2, CO2, or H2O across the membrane is called...________________.

Answers

Answer 1

Answer:

diffusion

Explanation:

these particles are in gases and so gases move from an area of high concentration (outside membrane) to an area of low concentration down a concentration gradient


Related Questions

Explain the contribution of antigenic determinant in false negative and false positive tests

Answers

Answer:

Contribution of antigenic determinant in false negative -: Popular causes of false-positive ELISA include: flu vaccine administration, presence of HLA-DR antibodies in women with multigravity, presence of rheumatoid factor. Contribution of antigenic determinant in false positive tests -: Positive RPR exam, hypergammaglobulinemia and autoimmune hepatitis (e.g. multiple myeloma).

Explanation:

Much attention has been paid to the specificity and sensitivity of this assay since regular ELISA screening of blood donors for anti-HIV antibodies was implemented. It was found that inadequate coating of the microtitre plates with HIV-antigen could lead to false negative results. It is important that the ELISA test kit manufacturers use control systems that guarantee adequate antigen coating.

Why don't solids, liquids, and gases leave Earth's atmosphere?
Only gases can leave the atmosphere.
O Matter on Earth is destroyed and recycled.
O Gravity keeps all matter on Earth.

Answers

Matter on earth is destroyed and recycled

Which describes primary succession, but not secondary succession?
a. Small trees and shrubs replace grasses and other small plants.
b. Large trees replace small trees and shrubs.
c. The process often begins on lifeless, barren rocks that form from a
volcanic eruption
d. The process often begins after a human disturbance, such as clear-cutting a
forest

Answers

Answer:

C

Explanation:

Answer:

Which disturbance would result in primary succession?

harvesting wheat by using a combine harvester at the end of the growing season

controlled burning to stimulate the growth of forest trees such as sequoia

the formation of Surtsey, a volcanic island off of the southern coast of Iceland **

the effect of a large herd of elephants on the grasses and shrubs in an area

Explanation:

Over millions of years silt washed into a lake formed layers of sedimentary rock. What type of rock was likely formedscien​

Answers

Formedscien I think

PLEASE HELP- Soon

If an impatiens flower experiences drought, then its leaves curl up and wilt as a response to water loss and as a means to reduce evaporation (water loss from the leaves).

What is the independent variable ?

What is the dependent variable ?

Answers

IV- water
DV- plant reaction

Any resource necessary to the survival of populations in an ecosystem may become a(n)
A. abiotic factor.
B. biotic factor.
C. limiting factor.
D. niche.

Answers

C. A limiting factor

Why do plants not have any special respiratory organs like animals? Give two reasons.

Answers

Answer:

Hmm.

Explanation:

'Plants do not have lungs or any respiratory orgasm in themselves so they don't need the process of respiration. Plants do not need a respiratory system because roots, stems, leaves of plants exchange gases for respiration separately. They don't have lungs to breathe so they don't need a respiratory system.'

Basically, plants don't need respiratory organs because they have roots, stems, and leaves, which they use to breathe.

Also, because they are plants. These are the same guys who take energy from the sun.

Which best explains how scientists confirmed that the moon formed around the same time as Earth?

Scientists determined the approximate age of fossils from the moon and Earth.
Scientists used radioactive dating to study the age of material from the moon and Earth.
Scientists explored the cycle of condensation and evaporation over time on the moon and Earth.
Scientists analyzed the content of gases that were part of the atmospheres on the moon and Earth.

Answers

Answer:

B.

Explanation:

I Took The Test

The statement 'scientists used radioactive dating to study the age of material from the moon and Earth' best explains how scientists confirmed that the moon formed around the same time as Earth.

What is radioactive dating?

Radioactive dating is a well-known technique used to date the age of specific rocks (in this case, moon rocks).

Radioactive dating uses the average life of radioactive isotopes to determine the age of a particular rock.

Radioactive isotopes used in radioactive dating may include, among others, Carbon-14 and Hydrogen-3 (tritium).

In conclusion, the statement 'scientists used radioactive dating to study the age of material from the moon and Earth' best explains how scientists confirmed that the moon formed around the same time as Earth.

Learn more about radioactive dating here:

https://brainly.com/question/8831242

this is a bag that churns up the food. it contains gastric juice and hydrochloric acid. gastric juices contains an enzyme that digests protein. the acid kills germs

Answers

Answer:

Stomach

Explanation:Seems like what you are describing is the stomach. It's the first  stage of digestion and uses pepsin an enzyme that digest protein. There's also stomach muscles that move the food around.

Answer:

stoumic

Explanation:

The goal of a statement of purpose is:
A. to demonstrate that a hypothesis is wrong
B. To list the materials needed for an experiment
C. To calculate an average of two or more measurements
D.To indicate what is expected to be accomplished in doing an experiment

Answers

The goal of a statement of purpose is:

D. To indicate what is expected to be accomplished in doing an experiment.


The layer of the Earth called the mantle is often described as convecting. In this context, convection is
A.
a process that keeps the mantle stationary.
B.
a continuous cycle in the Earth's interior.
C. a step in the formation of sedimentary rock.
D.
a process that occurs on the Earth's surface.

Answers

Answer:

B

Explanation:

Convection occurs to divert heat generated by the core and spread through the mantle. at the bottom of the mantle, heat is gained, causing the mantle to be less dense and rise up. at the top, heat is subsequently lost, resulting in am increase of mass and a drop down for the mantle. this process repeats indefinitely

Convection is a continuous cycle in the interior of the Earth.

Convection of Earth's mantle

The prime mechanism of heat transfer in the mantle of the Earth is convection.

Convection of mantle illustrates the movement of the mantle as it mediates heat from the white-hot core to the brittle lithosphere.

It is a thermally driven procedure in which heating at depth makes the material to expand and become less dense, making it to elevate while being substituted by the complimentary cool substance, which sinks.

This phenomenon of heat gain and heat loss takes place continuously in the mantle of the Earth.

Thus, the correct answer is option B.

Find out more information about convection of mantle here:

https://brainly.com/question/14209266

Look at the energy pyramid shown below.
Tertiary Consumers
(ex: hawk)
Secondary Consumers
(ex: snake)
Primary Consumers
(ex: grasshopper)
Producers
(ex: grass)
If a pesticide is released into the environment that kills most of the grasshoppers, which of the following is most likely to occur?
OA.
an increase in population for all organisms
ОВ.
a decrease in the number of snakes
C
an increase in the number of hawks
D
a decrease in the amount of grass

Answers

Answer:

It should be A. If the pesticide is released, then they die, and the consumers of the grasshopper (snake) dies due to no grasshoppers, then the animal that consumes the other animal (hawk eats snake) that eats the grasshopper will die because there aren't enough of that animal for it to eat. the only thing that lives is the grass.

Sorry if I'm wrong, but i hope it helps.

Answer:

It's actually B, "a decrease in the number of snakes"

Explanation:

What climate zone has high annual temperatures and a small yearly temperature range

Answers

Answer:

A tropical monsoon climate

Explanation:

tropical monsoon climate as having small annual temperature ranges, high temperatures, and plentiful precipitation. This climate also has a short dry season which occurs in the winter.

The climate zone has high annual temperatures and a small yearly temperature range in tropical monsoon climates.

Tropical monsoon weather:  

As having small annual temperature ranges, excessive temperatures, and considerable precipitation. This weather also has a short dry season which almost usually occurs within the winter.

What are the features of tropical monsoon climate?

In the tropical monsoon types of climate, there are dry seasons with low rainfall. as an instance in India, summers, and winters are dry with the simplest little rainfall. while northern parts of u. s. a . get hold of little rainfall at some stage in the summer season due to cyclonic melancholy, Tamil Nadu receives rainfall all through winters.

Learn more about the climate here: https://brainly.com/question/17922964

#SPJ2

Why can scientists compare the amino acid sequences of the proteins of three different living organisms?

A. because the genetic code is universal for all organisms
B. because the basic anatomy for all living organisms is the same
C. because RNA cannot be used to show evolutionary relationships
D. because the sequence of RNA is the same in all living organisms

Answers

Answer: A. because the genetic code is universal for all organisms

Explanation:

The genetic code of living things refers to the information that cells in living organisms use to encode genetic information from the DNA and the RNA into proteins.

Every living organism uses the same genetic code and scientists believe this is because we all share a common history in terms of evolution. This homogeneity is advantageous because it enables scientists to be able to compare amino acid sequences across multiple living species.

A chemical that binds to a receptor with the channel directly on it is a(n _____ ?

Answers

Should be ligand intracellular receptors, binding of a ligand to a receptor changes its shape or activity.

HELP!!! due today and ignore the one i chose if its incorrect

Answers

if i had to pick id pick the fourth option

THIS IS EARTH SCIENCES
If -----------are spaced closely together on a map, there is a drastic temperature change over a distance.
A. Isobars
B. Warm fronts
C. Isotherms
s D. Occluded fronts​

Answers

Answer:

B:warm fronts

Explanation:

It is warm fronts because the closer it is the warmer it is and the farther it is colder.

Spartina, shown here, is a plant that grows along the South Carolina coast. it’s roots are often submerged in brackish water ( mixture of fresh and salt water ) as the tide rolls in and out along the shore

Answers

Answer:

D

Explanation:

How does energy control the loss of water to a hypertonic enviorment to avoid dehydration?

in the processes of photosynthesis what supplies the hydrogen(H) used in the formation of glucose

Answers

Answer:

NADPH ( nicotinamide adenine dinucleotide phosphate)

What do viruses, animal cells, plant cells, and bacteria have in common

Answers

Answer:

They are alive.

Explanation: They are all part of a living organism.

will give brainlist

Earth's surface is constantly changing, and new landforms are constantly taking shape due to natural processes. Which landform is most likely caused by deposition?
A. caves
B. valleys
C. Deltas
D. lakes

Answers

Answer:

C. Deltas

Hope it helped :)

The _____
layer of the skin is made of dead cells.

Answers

Answer:

The stratum corneum is the layer of skin made of dead cells.

Answer:

Top layer

Explanation:

Hope this helps

how does economics affect conservation?

Answers

Conservation Economics is the use of economics to understand the costs and benefits of sustaining natural ecosystems. Its purpose is to accomplish more widespread and lasting conservation by lowering its costs, revealing its benefits and fitting it within genuine economic development.

»
How many meters are there in 2.5 kilometers?

Answers

Answer:

there are 2500 meters in 2.5 kilometers.

Answer:

2500 meters

Explanation:

Many people equate high self-esteem with

Answers

arrogance, selfishness, and Ego.

PLZZZ HELPPP
Explain how rocks can be analyzed to determine the history of an area.

Answers

Answer:

Well let's take Sedimentary rock for example, The Law of Superposition which measures the average age of Sedimentary rocks using rocks around it. So you would use that rocks below it are older and that Extrusions and Intrusions are younger than the rocks which are stable.

Explanation: Hope it Helps With Your Work!

briefly explain the relationship between cells, organs and tissues

Answers

Answer/Explanation:

Cells of a similar type are organized together to make tissues. Different types of tisues come together to perform a similar function as part of organs.

For example, take the organ the stomach. There are various tissues that make up the stomach, including, for example, mucosa, and muscle tissue.

The mucosa tissue of the stomach is made up of secretory cells such as parietal cells, which secrete hydrochloric acid, and foveolar cells which produce mucus that protects the lining of the stomach.

Which of the following professionals would be hired to examine a manufacturing site and review certifications and
permits?
O environmental lawyer
O environmental policy maker
O environmental resource managers
environmental compliance specialist

Answers

environmental compliance specialist

The endomembrane system works together in the ________ of lipids and proteins.

Answers

Sorting, tagging, packaging, and distribution of lipids and proteins takes place in the Golgi apparatus (also called the Golgi body), a series of flattened membranes (Figure 4.4. 3). The receiving side of the Golgi apparatus is called the cis face.

Which of the following best describes a saturated fatty acid?

a. A lipid containing double bonds between carbons

b.A lipid sharing one pair of electrons between carbons

c. a nutrient organic molecule that is acidic

d.any lipid nutrient molecule containing carbons and hydrogens

Answers

Answer:

Any lipid nutrient molecule containing carbons and hydrogens.

Other Questions
Look at the diagram How many peaks are on this shield volcano? (A.) 4(B.) 3 (C.) 2 (D.) 1 Have you ever been at sea in a dense fog, when it seemed as if a tangible white darkness shut you in, and the great ship, tense and anxious, groped her way toward the shore with plummet and sounding-line, and you waited with beating heart for something to happen? I was like that ship before my education began, only I was without compass or sounding-line, and had no way of knowing how near the harbour was. "Light! give me light!" was the wordless cry of my soul, and the light of love shone on me in that very hour. . . .The morning after my teacher came she led me into her room and gave me a doll. The little blind children at the Perkins Institution had sent it and Laura Bridgman had dressed it; but I did not know this until afterward. When I had played with it a little while, Miss Sullivan slowly spelled into my hand the word "d-o-l-l." I was at once interested in this finger play and tried to imitate it. When I finally succeeded in making the letters correctly I was flushed with childish pleasure and pride. Running downstairs to my mother I held up my hand and made the letters for doll. I did not know that I was spelling a word or even that words existed; I was simply making my fingers go in monkey-like imitation. In the days that followed I learned to spell in this uncomprehending way a great many words, among them pin, hat, cup and a few verbs like sit, stand and walk.Based on this excerpt, which words best describe Helen Keller?lonely and timidcurious and eagergentle and mild-manneredlevelheaded and reasonable A The Battle of SaratogaB Lexington and ConcordC Valley ForgeD Yorktown Will give brainless if you answer these two question Describe the nature of the roots for this equation.x 2x+1=0O A. Two complex rootsO B. Two real, irrational rootsO C. Two real, rational rootsO D. One real, double root When water changes states from a liquid to gas , the water molecules move far apart . True or false? (6th grade science) A long period of worldwide colder temperatures resulting in great ice sheets is an?A: ice ageB: stone ageC: cold age plz help ill give brainliest Financial advisors counsel young people to start saving early for their retirement. Explain why an early start is important. View the incomplete table.StateArrangement of AtomsTare fixed; vibrate in placeUmove freely; spread outliquid are closely packed slide past one anotherVhave rapidly moving ionized particlesIn which box could "salt" be placed?ExampleWheliumXSunOo ooE) 3 x What is the following sentence an example of?Who won the lottery?A. On the page B. Random question C. From my brain D. Prediction Which atmospheric layer is where Earth's northern and southern lights occur? mesosphere stratosphere thermosphere troposphere Simplify (3a3 7a2 + a) (6a3 4a2 8).a. -3a6 3a4 + a +8 b. -3a6 11a4 +a -8c. -3a3 11a+a -8 d. -3a3 3a + a +8 Please help me, I am, tired. Show all work to solve 3x^2 5x 2 = 0.If you answer, please tell me the reason for your steps. I've fallen behind in Algebra and need visuals to finally understand. (18 - ab) + 4b (if a = -2 and b = -5) Complete las siguientes oraciones escogiendo el verbo apropiado entre parntesis.MODELO: Yo ______ nervioso cuando tengo exmenes. (aburrirse / ponerse)Yo me pongo nervioso cuando tengo exmenes.1. Mis primas ____ cuando no pueden chatear con sus amigas por su red social favorita. (aburrirse / acordarse)2. Cuando van al parque, mis hermanitos ____ mucho. (enojarse / divertirse)3. Mi ta Hilda ___ triste cuando piensa en su pap que est lejos. (ponerse / irse)4. Mi abuelo ____ cuando le interrumpen la siesta. (rerse / enojarse)5. Yo ____ feliz cuando saco buenas notas en los exmenes. (sentirse / enojarse)6. La madrina de mi hermana ____ mucho de mis chistes. (rerse / enojarse)7. Isabela ____ cuando ve a su prima. (alegrarse / sentirse)8. Uds. siempre ____ cuando es la hora de lavar los platos. (ponerse / irse)9. Mi mam siempre ____ en el silln cuando ve la televisin. (enojarse / dormirse)10. Emilio y Ernesto ____mucho; son gemelos. (parecerse / rerse) (2x + 35)=(5x-22) whats x in a type of government power is held by the people who voted on issue Translate the phrase by finding the infinitive and conjugating it to match the subject.We enter. Nosotros ____ I skate. Yo ____She teaches. Ella _____We walk. Nosotros _____I arrive. Yo ______ Suspense is a feeling of uncertainty about what will happen. Think about Josh playing one-on-one with his father. How did the writer build suspense? A He ended the section by saying Josh's dad collapsed. B He ended the section with the words, "But then--" C He ended the section by saying, "The End." D He ended the section by defining a word. Questions are from the book called "The crossover"by Kwame Alexander