How does oxygen enter a cell?
A. Active transport
B. Facilitated diffusion
C. Simple diffusion
D. Osmosis

Answers

Answer 1

Answer:

C

Explanation:


Related Questions

what does photosynthesis and cellular respiration have in common?​

Answers

Photosynthesis involves the use of energy from sunlight, water and carbon dioxide to produce glucose (Sugar) and oxygen.


Cellular respiration uses glucose and oxygen to produce carbon dioxide and water.

Both use ATP (Adenosine triphosphate)

PLZZZZZZ I NEED HELP ASAP I ONLY GOT A LIL TIME PLZZ HELP :)

Answers

Answer:

B. The first generation will not have short plants. The short trait will return in the second generation.

Explanation:

If T is for Tall and t is for short, then the first generation doesn't have any short offspring. We can rule out answer choices A and D.

The second generation results in TT, Tt, Tt, tt.

TT is a tall Offspring.

Tt is a Tall Offspring, with a small t as a recessive trait.

tt is a short offspring because both the recessive traits (t) are together.

We can rule out option C.

That leaves us with the correct answer being B. The first generation will not have short offspring, but will pass it on to the second generation, which will have a short offspring (25% chance of having short offspring).

Which molecules prevent cell membranes from dissolving in water?
O A. Nonpolar fatty acids
O B. Polar phosphate groups
C. Adenosine triphosphates
D. Large globular proteins

Answers

Explanation:

a nonpolar fatty acids

hope this help u

A non-polar fatty acids prevent cell membrane from dissolving in water. The correct option is A.

What is a cell membrane made of?

The cell membrane, also known as the plasma membrane, is uncovered in all cells and serves to separate the cell's interior from the outside environment.

The cell membrane is made up of a semipermeable lipid bilayer. The cell membrane controls the transport of materials into and out of the cell.

These are glycerophospholipids, which are molecules made up of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon compound that serves as the membrane lipids' backbone.

As, these non-polar fatty acids are insoluble in water, so it protect the cell membrane from water. It actually prevent the cell membrane to get dissolve in the water.

Thus, the correct option is A.

For more details regarding cell membrane, visit:

https://brainly.com/question/13524386

#SPJ2

A sandwich shop sells 4 veggie subs for every 5 turkey subs. The shop sold 27 subs today. How many of each kind did they sell? i need help plz !!!!!!!!!!!! due 1:00

Answers

Answer:

3 each

Explanation:

The question said 4 veggie subs for every 5 turkey subs.

So every time 5 turkey subs were sold it lead to the increase of both

What is the term for an organism that makes its own source of chemical energy?
protist
B chloroplast
decomposer
D producer

Answers

Answer:

D thxs good luck on your test

Explanation:

Which statement best summarizes the complete rock cycle?


1.Sedimentary rocks are weathered to form igneous rocks. Igneous rocks are melted and cooled to form metamorphic rocks.


2.Metamorphic rocks melt to form igneous rocks. Igneous rocks can be weathered to form sedimentary rocks.


3.Sedimentary rocks are the only rocks that are weathered. Igneous rocks can change to sedimentary rocks.metamorphic rocks by heat and pressure. All rocks can be melted and cooled to form igneous rocks.


4.All rocks can change into all other rocks. When rock is melted and cooled, it forms an igneous rock. When rock is under extreme heat and pressure, a metamorphic rock forms. When rock goes through stratification, a sedimentary rock is formed.

Answers

Answer:

3.Sedimentary rocks are the only rocks that are weathered. Igneous rocks can change to sedimentary rocks.metamorphic rocks by heat and pressure. All rocks can be melted and cooled to form igneous rocks.

Explanation:

Sedimentary rocks as the name implies are made up of rock sediments which are formed by weathering processes.

Igneous rocks are the rocks which gives rise to sedimentary rocks and metamorphic rocks under certain conditions such as heat and pressure.

All the type of rocks can also be melted and cooled to form back to igneous rocks.

PLEASR HELP- 24 points!

What front brings the most severe weather?
-Cold Front
-Warm Front
-Stationary Front

Answers

Answer:

cold fonts

Explanation:

hope this helps

Biologyyyy agaaainn!

Answers

Answer:

1 and 2

Explanation:

This is my answer to your question

How do we determine climate change (amount of time, trends, etc)?

Answers

Answer:

xlimate change is when the climate change due to green house effect

So, climate describes the long term pattern of weather conditions that occurs in a locality. Thermometers and rain gauges are used to collect weather data. These days temperatures are also taken by satellites to reduce the possibility of false high readings due to heat in cities. We can't take Earth's temperature directly, but we do have a lot of information from weather stations, ocean buoys and remote sensing instruments. The information lets us see changes in climate.
An ice core.
Each layer in an ice core tells scientists something about Earth's past.

Mr. Chavez wants his class to prepare a procedure that would demonstrate cellular diffusion. Which of the following procedures would best demonstrate cellular osmosis?

A. A procedure that uses the skins of potato left overnight in oil

B. A procedure that uses a cluster of grapes left overnight in a high concentration of salt water
C. A procedure that uses a 2-liter bottle filled with oil and water and left overnight

D.A procedure that uses a banana that has been left overnight in milk

Answers

Answer:

B

Explanation:

The second option correctly shows the process of cellular osmosis.

When the grapes would be immersed in water, the molecules of water move across the cell membrane from the region of low to high solute concentration. Due to this, the water would leave the cells and diffusion of water from the cells of the grapes. Thus, option B is the correct answer.

In conclusion, the procedure that uses a cluster of grapes left overnight in a high concentration of salt water would BEST demonstrate cellular osmosis (Option B).

Osmosis refers to the movement of a solution (often water) across a selectively permeable membrane.

This movement (osmosis) is due to the difference in solute concentrations on both sides of the semipermeable membrane.

In osmosis, water molecules move from a region of low concentration of solutes (e.g., salt) to a region of high concentration of solutes.

In conclusion, the procedure that uses a cluster of grapes left overnight in a high concentration of salt water would BEST demonstrate cellular osmosis (Option B).

Learn more in:

https://brainly.com/question/21395644

What's the difference between inference and observation? Give examples of each.

Answers

Answer:

A inference is a conclusion reached on the basis of evidence and reasoning.

A observation is an act or instance of regarding attentively or watching

Explanation:

Example for a inference would be - lets say you notice someone isnt acting like theirself you may infer that their not having a good day or their not in a mood

Observation example- when your doing a lab for science you may observe the different types of utensils or the effects of the object you use like oh this is blue or something

HWLPPPPPPPAHWOWAJAOAKSNSKWKEKEOEL

Answers

Answer:

glycolose

Explanation:

Name and describe the five types of active transport systems.

Answers

Answer:

Please Mark as Brainliest. Please!!!!!!!!!!

Explanation:

Definition

Active transport is the process of transferring substances into, out of, and between cells, using energy. In some cases, the movement of substances can be accomplished by passive transport, which uses no energy. However, the cell often needs to transport materials against their concentration gradient. In these cases, active transport is required.

Active transport requires energy to move substances from a low concentration of that substance to a high concentration of that substance, in contrast with the process of osmosis. Active transport is most commonly accomplished by a transport protein that undergoes a change in shape when it binds with the cell’s “fuel,” a molecule called adenosine triphosphate (ATP).

For example, one type of active transport channel in the cell membrane will bind to the molecule it is supposed to transport – such as a sodium ion – and hold onto it until a molecule of ATP comes along and binds to the protein. The energy stored in ATP then allows the channel to change shape, spitting the sodium ion out on the opposite side of the cell membrane. This type of active transport directly uses ATP and is called “primary” active transport.

Another type of active transport is “secondary” active transport. In this type of active transport, the protein pump does not use ATP itself, but the cell must utilize ATP in order to keep it functioning. This will be explained in more depth in the section on Symport Pumps below.

Lastly, active transport can be accomplished through processes called endocytosis and exocytosis. In exocytosis, a cell moves something outside of itself in large quantities by wrapping it in a membrane called a vesicle and “spitting out” the vesicle. In endocytosis, a cell “eats” something by wrapping and re-forming its membrane around the substance or item.

Each type of active transport is explained in more detail below.

Types of Active Transport

Antiport Pumps

Antiport pumps as an example of active transport

Active transport by antiport pumps

Antiport pumps are a type of transmembrane co-transporter protein. They pump one substance in one direction, while transporting another substance in the opposite direction. These pumps are extremely efficient because many of them can use one ATP molecule to fuel these two different tasks.

One important type of antiport pump is the sodium-potassium pump, which is discussed in more detail under “Examples of Active Transport.”

Symport Pumps

Symport pumps take advantage of diffusion gradients to move substances. Diffusion gradients are differences in concentration that cause substances to naturally move from areas of high to low concentration.

In the case of a symport pump, a substance that “wants” to move from an area of high concentration to low concentration down its concentration gradient is used to “carry” another substance against its concentration gradient.

One example of a symport pump – that of the sodium-glucose transport protein – is discussed below under “Examples of Active Transport.”

Sympoter pump as an example of active transport

Active transport by symporter pumps

Endocytosis

In the third type of active transport, large items, or large amounts of extracellular fluid, may be taken into a cell through the process of endocytosis.

Fastttttttttttttttttttttttttttt I will give branliest

Answers

Answer:

ok

Explanation:

Answer:

A. Both of them are correct

Explanation:

Mechanical waves include the movement of water, from ripples in a puddle to giant rolling waves on the surface of the open ocean. For example, water waves (mechanical waves) can transfer energy across an entire ocean basin, even though individual water molecules do not travel great distances.

Electromagnetic propagation through water is very different from propagation through the air because of water's high permittivity and electrical conductivity. Plane-wave attenuation is high compared to air and increases rapidly with frequency.

What are the main factors in ecosystem diversity?

Answers

Ecosystem diversity deals with the variations in ecosystems within a geographical location and its overall impact on human existence and the environment. ... An example of ecological diversity on a global scale would be the variation in ecosystems, such as deserts, forests, grasslands, wetlands and oceans.

The main factors in ecosystem diversity include the physical characteristics of the environment and the diversity of species present.

What is Diversity?

This involves the environment containing different types of species and is affected by certain factors.

The factors which affect ecosystem diversity include physical characteristics of the environment and the diversity of species present.

Read more about Diversity here https://brainly.com/question/26110061

#SPJ2

Help Please
What is the chemical reaction of carbon dioxide (or an example of a chemical reaction of carbon dioxide)

Also, does carbon dioxide create a reactant or product?

Answers

Answer:

co2 reacts with hydrogen in a reversible reaction to form carbonic acid

Explanation:

if u want the equation lem me know

One of the buffers that contribute to pH stability in human blood is carbonic acid (H2CO3). Carbonic acid is a weak acid that, when placed in an aqueous solution, dissociates into a bicarbonate ion (HCO3-) and a hydrogen ion (H+).
Thus, H2CO3 = HCO3- + H+
If the pH of the blood increases, one would expect:

(A) a decrease in the concentration of HCO3- and an increase in the concentration of H+

(B) an increase in the concentration of H2CO3 and a decrease in the concentration of HCO3-

(C) a decrease in the concentration of H2CO3 and an increase in the concentration of HCO3-

(D) an increase in the concentration of HCO3- and a decrease in the concentration of OH-

(E) a decrease in the concentration of HCO3- and an increase in the concentration of both H2CO3 and H+.

I'm not sure if it is C or D ​

Answers

Answer:

The answer is "Option C".

Explanation:

In the given question, the pH scale is used to evaluate acid or basic (alkalinity) formulas. It is nearly positive throughout the blood. Human blood has to maintain its pH at about 7.4, to prevent dramatically increased or lower changes, even though the bloodstream enters or exits acidic or essential substances.  

The buffers are essential for stabilization management. Calcium carbonate produced as carbon dioxide joins the blood system and combines with the liquid is a buffer which adds to the pH level in the human blood. It is returned to the water and distributed as a waste product until it enters the lungs, that's why choice C is correct.

____ is i five carbon sugar found in dna

Answers

Answer:

deoxyribose

Explanation:

The pentose sugar in DNA is called deoxyribose, and in RNA, the sugar is ribose.

Feeding relationships within a community can be represented by

Answers

The answer to your question isrelationship

today's midterms and I just want to say good luck to you all. (we're doomed)

Answers

Answer:

lol, good luck dude ur gonna need it.

Explain the relationship between a hypothesis and a theory. Then give an example of something that would cause a hypothesis or a theory to be revised or discarded.

Answers

Answer:

Hypothesis is a written observation, that has not been proven correct, but is written after observation of a specimen. Proving this particular hypothesis, shows the interconnectivity/ relationship between a hypothesis and a theory.

Explanation:

Simply put, a hypothesis is a written observation, which may or may not be true, while a theory is established when a hypothesis is proven correct.

AN EXAMPLE OF SOMETHING THAT COULD MAKE A THEORY TO BE REVISED:

If other laws or theories put before it controversies it.If its observations where not correctly written.If it cannot stand the test of time.If further experiments doesn't show the same result.

Hypothesis is  either written or evidence based observation but it has to be proven where as when a hypothesis is proved by doing experiments multiple times and getting same results then it is called as as scientific theory.  

What is scientific theory ?

scientific theory can be  a structured form where a group of facts can meet and  be explained by using scientific hypothesis and laws, each theory can be proved by doing experiments and applying scientific method.

Scientist will design an experiment and conduct the experiment to test  and prove that hypothesis; If the result of hypothesis is incorrect, then new hypothesis will be set and new experiment will begin.

If the result of  hypothesis is correct, repeated tests  have been done to ensure the accuracy of the result.

For more details regarding scientific theory , visit:

brainly.com/question/2375277

#SPJ2

Help me answer that question and how are you supposed to know which one is the predator and the prey like how can you tell?

Answers

Answer:

predator is blue, prey is red

Explanation:

when the amount of predators increase, the blue line rises, the red line lowers. when there is more predators there is going to be a less amount of prey.

What is deoxyribose?
A. n acid found in DNA
B. a sugar in DNA
C. a pigment found in RNA
D. a nitrogenous base found in DNA and RNA

Answers

That’s easy it’s just B

help me pleaseeeeeeee

Answers

Answer:

The S stage (DNA sythesis)

Explanation:

During the S stage the cell synthesisis a new copy of DNA in the nucleus in preparation for cell devision.

yes the answer is The s stage

is this true or false, Surface waves result from a combination of up-and-down plus side-to-side motion.

Answers

Answer:

yaaa you knew that air is everywhere it moves

What r the 4 seasonal stages of the year ?

Answers

Answer:

Spring, Summer, Winter, and Fall

Explanation:

Please mark me brainliest]

Answer:

Spring, Summer, Autumn (Fall) and Winter.

Explanation:

A mineral forms in water heated by magma inside Earth. Which statement best describes this mineral? The mineral formed through evaporation. The mineral crystallized from molten material. The mineral formed when a hot water solution cooled. The mineral likely has all the same properties as the surrounding rock.

Answers

Answer:

The mineral formed when a hot water solution cooled.

Explanation:

The mineral is formed from hot water solution heated by magma in the Earth when the water is cooled because when hot water solution is heated by magma in the Earth, it begin to cool underground, then the elements and compounds present there move out of the water solution , after these, these elements and compounds then undergo crystallisation and form minerals . Pure metals that crysralise from hot water solution is called Veins.

A mineral forms in water heated by magma inside Earth, when the hot water solution cooled.

Minerals formed from heated water by magma

A mineral is formed from hot water solution heated by magma in the Earth when the water is cooled.

When hot water solution is heated by magma in the Earth, afterwards it begins to cool underground, then the elements and compounds present in the solution move out of the water solution.

After this process, the separarted elements and compounds undergo crystallisation and form minerals. The minerals formed in this process are called veins.

Learn more about hot water solution here: https://brainly.com/question/26757806

#SP J5

what would happen if all countries in the world depended only on wind power?

Answers

Answer:

A country getting all its electricity from a combination of wind, solar ... Not only does that make vitamin D a commodity, it also means solar ... Elon Musk became a sensation in South Australia last year after he decided Tesla would build the world's biggest lithium-ion battery ... This didn't happen overnight.

Glucose can be classified as both of the following terms

Answers

Answer:

hope this helps :)

Explanation:

Monosaccharides contain a single unit; disaccharides contain two sugar units; and polysaccharides contain many sugar units as in polymers - most contain glucose as the monosaccharide unit. Number of Carbons: Monosaccharides can be further classified by the number of carbons present.

Ivan reads a story about a population of mice that become stranded in a dark jungle. Some mice are dark brown, while others are white. According to the process of natural selection, predict which mice would be more successful living in a dark jungle. Explain natural selection and your prediction.

Answers

Answer:

The dark brown mice would be more successful in a dark jungle since the darker color of their fur would make it hard for predators to spot them.

The process of natural selection, predict which mice would be more successful living in a dark jungle is de dark brown.

What is natural selection?

Natural selection is one of the main mechanisms of evolution. In a very simple way, we can say that natural selection is a process in which the fittest organisms are selected, survive in the environment, reproduce and pass their characteristics on to their descendants.

In this case, as it is a very dark forest, an animal with a white coat will attract more attention while an animal with a dark brown color will only be camouflaged in the environment.

See more about natural selection at brainly.com/question/9830102

Other Questions
Which non-metal have lustre in the following 1. Iodine 2. Chlorine 3. Carbon 4. Silicon You choose a card from a deck of 52 cards. Without replacing the card, you choose a second card. What is the probability of choosing two red cards? sariling mitolohiya tungkol sa pag ibig HELP ASAP!! pleaseeeee Which set of side lengths form a right triangle? a.) 2 inches, 3 inches, 4 inches b.) 6 inches, 8 inches, 10 inches c.) 8 inches, 9 inches, 11 inches d.) 10 inches, 12 inches, 13 inches How was jazz invented How does supply and demand affect the price of oil? Explain how "Indian" reveals a contrasting point of view of life in early America1 Indian2 by Rosemary and Stephen Vincent Bent34 I don't know who this Indian is,5 A bow within his hand,6 But he is hiding by a tree7 And watching white men land.8 They may be gods -- they may be fiends --9 They certainly look rum.10 He wonders who on earth they are11 And why on earth they've come.1213 He knows his streams are full of fish,14 His forests full of deer,15 And his tribe is the mighty tribe16 That all the others fear.17 -- And, when the French or English land,18 The Spanish or the Dutch,19 They'll tell him they're the mighty tribe20 And no one else is much.2122 They'll kill his deer and net his fish23 And clear away his wood,24 And frequently remark to him25 They do it for his good.26 Then he will scalp and he will shoot27 And he will burn and slay28 And break the treaties he has made29 -- And, children, so will they.3031 We won't go into all of that32 For it's too long a story,33 And some is brave and some is sad34 And nearly all is gory.35 But, just remember this about36 Our ancestors so dear:37 They didn't find an empty land.38 The Indians were here. g(-4) = anyone know the answer to this To win the War for Independence, all the colonists had to do was what? What is the border between Asia and Europe?AlpsUral MountainsHimalaya MountainsCordilleras You type 4500 words per hour. How many words do you typeper minute? what is a food thats red Which Article of the United States Constitution creates the Executive Branch of government?O a. Article 11O b. Article 1O c. Article vO d. Article 111 A disadvantage of privately owned media is its __________. Bob rides his bicycle on a bike path that is 1000 meters long to get his house that is due east of the bike path. If Bob take 150 seconds then...What is his speed?What is his velocity? Find the value of X(5x+4)+(8x-71) An 8th grade goes to a restaurant for dinner with their family. At dinner, the student orders iced tea. The ice and tea combined to weigh 210 grams. The student then added sugar and lemon to their tea. The sugar weighed 20 grams and the lemon weighed 15 grams. After adding the sugar and lemon, the student stated the tea weighs 225 (210 grams ice & tea + 15 grams lemon) grams since only the lemon would add weight to the tea because the sugar was dissolved. Do you agree or disagree with the statement? Justify your choice. Describe the personal characteristics that makes Grendel an antagonist in Beowulf let f(x)=2x and g(x)=x-4, what is the range of (f o g)(x)?a. y>0b. all real numbers except y=0c. y